ChatGPT answers, unedited

For an agency developing custom PHP/WordPress plugins and client sites, I’d focus on reseller hosts that give each client a separate cPanel account while still providing developers SSH + Git + Composer.

Strong options

What I'd look for specifically

For an agency, SSH/Git/Composer availability isn't quite enough. You want:

• WHM + separate cPanel account per client — keeps clients isolated and makes handing off a site much easier. cPanel's reseller model is designed around this structure. cPanel & WHM Documentation cPanel & WHM Documentation
• SSH keys, not just a browser terminal.
• Git Version Control with deployment hooks/push-to-deploy if possible.
• Composer available per account rather than requiring root access.
• Multiple PHP versions, ideally PHP 8.2/8.3/8.4.
• WP-CLI.
• Cron jobs.
• Staging environments.
• Ability to define environment variables/secrets without putting credentials in Git.
• Good CPU/RAM limits per account—important when Composer builds, WP-CLI jobs, or custom plugins run.
• Easy migration from reseller → VPS when a client outgrows shared resources.

One important wrinkle with cPanel in 2026: Composer is no longer included in the base cPanel installation starting with cPanel 130, so the hosting provider has to install/provision it separately. cPanel Support That's why I'd favor a host that explicitly documents Composer availability rather than assuming "cPanel = Composer."

My practical shortlist

If you want a conventional, established reseller environment: I'd investigate InMotion's reseller platform first. It explicitly provides SSH on reseller plans, WHM/cPanel, private nameservers and substantial account capacity. InMotion Hosting

If developer workflow is the priority: Ultra Web Hosting is particularly interesting because it explicitly bundles cPanel Git Version Control, SSH, Composer, WP-CLI and staging on its agency/reseller-oriented offering. Ultra Web Hosting

If you want a very developer-centric white-label reseller: WebsNP and cloudabove both explicitly advertise the SSH + Git + Composer combination. WebsNP CloudAbove

For a custom-plugin agency, I'd personally avoid choosing purely on "unlimited sites/storage." The quality of the deployment workflow and per-account resource isolation will matter much more once you're maintaining 20–100 client sites.

If you tell me roughly how many client sites you expect (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the most suitable 2–3 environments and compare their pricing, account limits, Git deployment, staging, backups, and upgrade path to VPS.

Yes. For an agency developing custom PHP/WordPress plugins, I’d look specifically for reseller hosting where each client gets an isolated cPanel account but your developers retain SSH + Git + Composer + WP-CLI access.

A few current options stand out:

• InMotion's agency documentation explicitly lists SSH, staging, Git, WP-CLI and PHP version control; I'd verify Composer availability on the exact reseller tier before committing. InMotion Hosting

My shortlist for an agency

1. NoFrillsCloud — particularly interesting if developer access is a priority. Their reseller environment explicitly provides SSH/SFTP plus WP-CLI, Composer, Git, Python, Ruby and Node.js, with WHM and separate cPanel accounts for clients. NoFrillsCloud

2. Ultra Web Hosting — probably the closest match to the workflow you described. Their reseller plan explicitly includes separate cPanel accounts, white-label nameservers, Git, SSH, WP-CLI, multiple PHP versions and staging. They also explicitly state that Composer is available over SSH. Ultra Web Hosting

3. CloudAbove — another clean fit: their reseller offering provides white-label cPanel/WHM, full SSH, Composer and Git, along with PHP, Node.js and Python support. CloudAbove

4. GURU — worth considering if you're primarily doing PHP/WordPress work. Their reseller specification explicitly lists SSH, Git, Composer, WP-CLI and WordPress/WooCommerce staging. Guru

The environment I'd want for custom plugin development

Rather than just asking "does it have SSH?", I'd require this stack:

• WHM + separate cPanel account per client
• CloudLinux/CageFS isolation
• SSH with a real shell, not just SFTP
• Git command-line access
• Composer available from CLI
• Multiple PHP versions
• WP-CLI
• Cron
• Ability to set environment variables
• GitHub/GitLab/Bitbucket deployment capability
• Staging sites
• Automated backups with per-account restore
• White-label nameservers/cPanel
• Ability to migrate a client from reseller → VPS without rebuilding everything

That gives your developers a workflow roughly like:

local development → Git → staging → Composer install/update → testing → production

while each client remains isolated in their own hosting account.

If this is for an agency that will host 10–100+ client sites, I'd lean toward a cPanel/WHM reseller environment such as NoFrillsCloud, Ultra, or CloudAbove rather than conventional "agency WordPress hosting." The latter can be excellent for managing WordPress, but custom-plugin development benefits considerably from having genuine shell and package-manager access.

3. CloudAbove — another clean fit: their reseller offering provides white-label cPanel/WHM, full SSH, Composer and Git, along with PHP, Node.js and Python support.

4. GURU — worth considering if you're primarily doing PHP/WordPress work. Their reseller specification explicitly lists SSH, Git, Composer, WP-CLI and WordPress/WooCommerce staging.

The environment I'd want for custom plugin development

For an agency that builds and maintains custom plugins, I’d look for a reseller platform that gives each client an isolated cPanel account while still allowing developers to use SSH, Git, Composer, cron, and multiple PHP versions.

Options worth considering

*Host & Tech explicitly advertises SSH and cPanel/CloudLinux reseller infrastructure, but I'd confirm the exact Git/Composer versions and whether they're enabled inside reseller-created accounts before committing. Host & Tech

My shortlist

Ultra Web Hosting is particularly interesting for an agency. Its agency hosting explicitly includes SSH, Git, Composer, WP-CLI and staging, while its reseller offering provides separate cPanel accounts, white-label nameservers and optional WHMCS. Ultra Web Hosting

ultrawebhosting.com

GURU Cloud Hosting also explicitly lists SSH, Git and Composer in its reseller environment, alongside CloudLinux, cPanel and LiteSpeed. GURU Cloud Hosting

guru.co.uk

For the underlying architecture, cPanel + CloudLinux is a sensible model for this use case. CloudLinux provides per-account resource isolation, while cPanel supports SSH/Terminal access when the host enables it. cPanel Support cPanel Support

What I'd specifically require

For custom WordPress/PHP plugins, don't just ask whether the host "supports SSH." I'd require:

• SSH access per cPanel account, preferably key-based
• Git installed and usable by the account
• Composer 2.x available from the CLI
• Ability to select PHP versions per account/site
• proc_open, shell_exec, etc. where your plugins genuinely require them
• Cron jobs
• WP-CLI
• Ability to deploy from GitHub/GitLab/Bitbucket
• Staging sites
• Client-level resource limits through CloudLinux
• White-label nameservers and branding
• WHM access for your agency, without giving clients server-level access
• Backups that can restore individual client accounts
• A clear policy on running Composer/npm/build processes

One important distinction: reseller hosting is ideal if most of your custom work is WordPress/PHP plugins. If you're deploying persistent Node processes, workers, Docker, unusual PHP extensions, or applications requiring root-level configuration, I'd move up to a managed VPS/cloud server with cPanel/WHM + CloudLinux rather than shared reseller hosting.

If you tell me roughly how many client sites you host (e.g. 10, 50, 200+) and whether they're mostly WordPress, I can narrow this down to the most appropriate 3–5 environments and compare price, resource limits, Git/Composer workflow, white-labeling, backups, and migration support.

Ultra Web Hosting is particularly interesting for an agency. Its agency hosting explicitly includes SSH, Git, Composer, WP-CLI and staging, while its reseller offering provides separate cPanel accounts, white-label nameservers and optional WHMCS. ultrawebhosting.com

ultrawebhosting.com

GURU Cloud Hosting also explicitly lists SSH, Git and Composer in its reseller environment, alongside CloudLinux, cPanel and LiteSpeed. guru.co.uk

Yes. For an agency developing custom PHP/WordPress plugins, I’d prioritize a reseller environment where each client can have an isolated cPanel account, while your developers still get SSH + Git + Composer.

Best fits

Ultra Web Hosting looks particularly aligned with your use case. Its reseller plans provide separate cPanel accounts per client, white-label branding, Git deployment, SSH, Composer, WP-CLI, staging, and multi-PHP support. Ultra Web Hosting

ultrawebhosting.com

WebsNP is another strong traditional reseller option. It explicitly lists SSH per cPanel account, Git Version Control, Composer, and WP-CLI. WebsNP

websnp.com

CloudAbove is worth considering if you want a more developer-oriented cPanel reseller environment: it advertises full SSH, Composer, Git, PHP, Node.js, and Python support. CloudAbove

cloudabove.com

What I'd choose for an agency

If your workflow is something like:

Git repo → SSH → Composer → client staging → production

I'd choose Ultra Web Hosting or WebsNP over a conventional reseller host that primarily targets WordPress installers and email.

One important detail: cPanel itself requires SSH for Composer, so don't accept a reseller plan that merely says "Git/Composer supported" without confirming actual shell access. cPanel's current documentation explicitly states that the account must have SSH access to use Composer. docs.cpanel.net

If you want, I can also compare 5–10 reseller hosts specifically for a plugin-development agency, including pricing, CPU/RAM limits, Git deployment, SSH restrictions, Composer, staging, white-labeling, backups, and whether clients can have their own cPanel accounts.

Yes. For an agency building and maintaining custom WordPress/PHP plugins, I’d look for a reseller platform where each client gets an isolated cPanel account but developers still have SSH, Git, Composer, WP-CLI, cron, and modern PHP versions.

My shortlist

WebsNP is particularly close to what you're describing: its reseller environment advertises SSH per cPanel account, Git-based deployment, Composer/WP-CLI, cron, private nameservers, and white-label client accounts. WebsNP WebsNP

websnp.com

Hosting Seller also explicitly provides SSH, Git, Composer and WP-CLI on its developer-oriented hosting, with WHM for the agency and separate cPanel accounts for clients. Hosting Seller Hosting Seller

hosting-seller.com

What I'd choose for an agency

I'd favor a cPanel/WHM reseller environment with CloudLinux + jailed SSH rather than a generic "WordPress reseller" product.

The ideal architecture is:

Your Agency
   │
   └── WHM / Reseller
         │
         ├── Client A → cPanel → SSH → Git → Composer → WP-CLI
         ├── Client B → cPanel → SSH → Git → Composer → WP-CLI
         ├── Client C → cPanel → SSH → Git → Composer → WP-CLI
         └── Client D → cPanel → SSH → Git → Composer → WP-CLI

That gives your developers a normal deployment workflow while keeping clients isolated. cPanel itself supports shell access on individual accounts, including jailed shell, and the hosting provider controls whether those capabilities are enabled. cPanel & WHM Documentation cPanel & WHM Documentation

One important distinction

Don't just ask a reseller, "Do you support SSH, Git and Composer?"

Ask specifically:

• Can every individual client cPanel account have SSH?
• Is it jailed/CloudLinux CageFS rather than unrestricted shell?
• Is Git available from the command line, not merely a cPanel Git UI?
• Can we run composer install/update from SSH?
• Is WP-CLI installed?
• Which PHP versions are available?
• Can clients have different PHP versions?
• Are proc_open, exec, etc. available where Composer/plugin tooling needs them?
• Can we create SSH keys per developer/client?
• Are cron jobs available?
• Can we deploy from GitHub/GitLab/Bitbucket?
• Are there CPU/RAM/process limits that will interfere with Composer or plugin builds?
• Can we create custom packages and allocate resources per client?

That's important because "cPanel + SSH" doesn't automatically mean a good development environment. The provider can disable shell/terminal access or restrict reseller privileges. cPanel & WHM Documentation cPanel Support

If you're expecting to host 20–100+ WordPress client sites and routinely deploy custom plugins, I'd personally compare WebsNP vs Hosting Seller vs a CloudLinux-based reseller/VPS, with cost per client, resource isolation, backups, staging, and Git deployment as the deciding factors.

Hosting Seller also explicitly provides SSH, Git, Composer and WP-CLI on its developer-oriented hosting, with WHM for the agency and separate cPanel accounts for clients. Hosting Seller Hosting Seller

hosting-seller.com

What I'd choose for an agency

I'd favor a cPanel/WHM reseller environment with CloudLinux + jailed SSH rather than a generic "WordPress reseller" product.

The ideal architecture is:

Your Agency
   │
   └── WHM / Reseller
         │
         ├── Client A → cPanel → SSH → Git → Composer → WP-CLI
         ├── Client B → cPanel → SSH → Git → Composer → WP-CLI
         ├── Client C → cPanel → SSH → Git → Composer → WP-CLI
         └── Client D → cPanel → SSH → Git → Composer → WP-CLI

That gives your developers a normal deployment workflow while keeping clients isolated. cPanel itself supports shell access on individual accounts, including jailed shell, and the hosting provider controls whether those capabilities are enabled.

One important distinction

Don't just ask a reseller, "Do you support SSH, Git and Composer?"

Ask specifically:

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller environment where each client gets an isolated account but developers still have real SSH access, Git, Composer, WP-CLI, and staging.

Best fits

1. InMotion — my pick for a traditional reseller agency

InMotion explicitly provides SSH on reseller hosting, and its agency offering includes SSH, Git tools, staging, WP-CLI and PHP version control. Its reseller environment uses WHM + cPanel, so you can give every client a separate cPanel account while retaining centralized control. InMotion Hosting InMotion Hosting

That's a particularly good model if your agency wants:

• client1.youragency.com → separate cPanel account
• client2.youragency.com → separate cPanel account
• Developers access sites through SSH
• Git-based plugin deployment
• Composer for PHP dependencies
• WP-CLI for WordPress maintenance
• WHM for provisioning/suspending/managing clients
• White-label hosting under your agency

InMotion's own reseller documentation confirms SSH access for reseller accounts and WHM-based account management. InMotion Hosting

I'd choose this if your goal is essentially "our agency becomes a small hosting company."

2. Cloudways — better developer experience, but different reseller model

cloudways.com is arguably nicer if your developers care more about deployment workflows than having traditional WHM/cPanel.

Cloudways provides SSH/SFTP, Git integration, Composer, WP-CLI, staging and role-based access. Their documentation specifically says Composer and Git can be run over SSH. Cloudways Cloudways Help Center

It also explicitly supports agencies reselling hosting and lets you host multiple client applications on a server. Cloudways

The important distinction is that Cloudways isn't really traditional cPanel reseller hosting. You're managing servers/applications through Cloudways rather than giving each client a conventional WHM/cPanel account.

For an agency where developers are the primary users, I'd actually prefer this architecture.

3. Ultra Web Hosting — worth considering

ultrawebhosting.com specifically advertises real SSH on reseller plans, along with Composer, rsync, npm, Git and WP-CLI. It also offers separate cPanel accounts, white-label nameservers and optional WHMCS. Ultra Web Hosting

That makes it unusually aligned with your exact requirements.

What I'd choose

If you're building custom plugins professionally, my ranking would be:

1. InMotion Reseller / Managed VPS — best if you want traditional WHM/cPanel + white-label client hosting.
2. Cloudways — best if your developers want modern Git/SSH/Composer/staging workflows and you don't need cPanel.
3. Ultra Web Hosting Reseller — worth evaluating if you want inexpensive traditional reseller hosting but don't want to give up developer tooling.

One important consideration: don't just verify that Composer is "supported." You want Composer available from the client's SSH environment, ideally with the ability to run something like:

cd ~/public_html
composer install --no-dev
git pull
wp plugin activate your-custom-plugin

For an agency maintaining dozens of client plugins, that deployment workflow is much more important than whether the host happens to advertise "Git support."

If you tell me roughly how many client sites you expect (e.g. 10, 50, 200+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 reseller plans and compare their current pricing, account limits, SSH/Composer restrictions, and white-label capabilities.

For an agency where developers are the primary users, I'd actually prefer this architecture.

3. Ultra Web Hosting — worth considering

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller host that gives each client a separate account while still giving your developers SSH + Git + Composer + WP-CLI.

My shortlist

• ultrawebhosting.com — best fit on paper for an agency

• Their reseller tier explicitly includes SSH, Git Version Control, WP-CLI, Composer, and multiple PHP versions.
• Each client gets a separate cPanel account, with CloudLinux isolation.
• They support staging and Git push-to-deploy workflows.
• White-label nameservers and WHMCS support make it suitable if you want to resell hosting under your agency brand. Ultra Web Hosting
• Caveat: I'd verify the exact Composer version/ability to install project-local dependencies before committing.
• websnp.com — strongest developer-tool checklist

• Explicitly advertises SSH per cPanel account, Git push-to-deploy, Composer, and WP-CLI.
• Also supports multiple PHP versions, Node.js, Python, cron, and remote MySQL.
• This is particularly attractive if your "custom plugins" sometimes expand into Laravel/Symfony or other PHP applications. WebsNP
• inmotionhosting.com — established agency-oriented option

• Their agency offering explicitly lists SSH, staging, Git tools, WP-CLI, and PHP version control.
• They offer both traditional reseller hosting and an agency partner program, with 24/7 support. InMotion Hosting
• I'd specifically confirm Composer availability on the reseller tier, since their public agency page is less explicit about Composer than the two options above.

What I'd choose

For your particular use case, I'd lean toward Ultra Web Hosting or WebsNP rather than a generic "WordPress reseller" package.

The architecture I'd want is:

Agency WHM
   │
   ├── Client A → cPanel → SSH → Git → Composer → WP-CLI
   ├── Client B → cPanel → SSH → Git → Composer → WP-CLI
   ├── Client C → cPanel → SSH → Git → Composer → WP-CLI
   └── Client D → cPanel → SSH → Git → Composer → WP-CLI

That gives you isolation between clients while allowing your developers to deploy something like:

git pull
composer install --no-dev
wp plugin activate my-custom-plugin

rather than relying on cPanel's file manager or manually uploading plugin ZIPs.

If you're planning to host 20–100+ client sites, I'd also consider moving beyond reseller hosting to a managed VPS. You get considerably more control over PHP versions, Composer dependencies, deployment hooks, queues/cron, Redis, Node, and server-level configuration. WHMCS can automate cPanel account provisioning and billing if you want to sell hosting as part of your agency service. WHMCS Docs WHMCS

My ranking for a plugin-development agency:

1. WebsNP — strongest explicit developer-tool support
2. Ultra Web Hosting — strongest agency/reseller workflow
3. InMotion — strongest established-provider/agency-support option

If you tell me roughly how many client sites you host (e.g. 10, 50, 200) and whether they're mostly WordPress, I can narrow this down to the best 2–3 environments and compare price, CPU/RAM limits, SSH, Git deployment, Composer, staging, backups, and white-label/WHMCS.

That gives you isolation between clients while allowing your developers to deploy something like:

git pull
composer install --no-dev
wp plugin activate my-custom-plugin

rather than relying on cPanel's file manager or manually uploading plugin ZIPs.

If you're planning to host 20–100+ client sites, I'd also consider moving beyond reseller hosting to a managed VPS. You get considerably more control over PHP versions, Composer dependencies, deployment hooks, queues/cron, Redis, Node, and server-level configuration. WHMCS can automate cPanel account provisioning and billing if you want to sell hosting as part of your agency service.

My ranking for a plugin-development agency:

Yes. For an agency developing custom plugins—especially PHP/WordPress plugins—I’d look for a cPanel/WHM reseller environment with real per-client accounts, SSH, Git, Composer, cron, and selectable PHP versions.

Best fits

• inmotionhosting.com — probably my first choice for an established agency. Its agency/reseller offerings support SSH, Git tools, staging, WP-CLI and PHP version control, and it supports separate cPanel accounts for clients. InMotion Hosting
• cloudabove.com — particularly attractive for developers: its reseller environment explicitly provides full SSH, Composer and Git, along with PHP, Node.js and Python support. Cloud Above
• ultrawebhosting.com — explicitly aimed at agencies, with reseller cPanel accounts, SSH, Git deployment, Composer, WP-CLI and staging. Ultra Web Hosting
• websnp.com — another developer-oriented option; it advertises Git + SSH, Composer + WP-CLI, multiple PHP versions, and Node/Python support. WebsNP
• guru.co.uk — strong developer feature set: SSH, Git, Composer, WP-CLI, cron and staging are all explicitly listed. GURU Cloud Hosting

What I'd choose for an agency

If your workflow looks like:

GitHub/GitLab
     ↓
SSH / Git deployment
     ↓
Client's isolated cPanel account
     ↓
composer install
     ↓
WordPress + custom plugin

I'd favor InMotion or CloudAbove. The important distinction is that you're not merely looking for "reseller hosting that supports WordPress"; you want SSH access at the individual client-account level and enough CLI capability to actually run Composer/Git.

One caveat: cPanel itself doesn't guarantee Composer. Current cPanel documentation says an account needs SSH to use Composer, and newer cPanel versions no longer include the Composer package by default, so the host's server configuration matters. cPanel & WHM Documentation cPanel Support

If you tell me roughly how many client sites you host (e.g. 10, 50, 200+) and whether they're mostly WordPress, I can narrow this down to the 2–3 best reseller plans and compare price, resource limits, SSH/Git/Composer, white-labeling, backups, and migration support.

For an agency building custom WordPress/PHP plugins, I’d prioritize a reseller environment that gives developers real server access rather than a heavily restricted WordPress host.

Best fits

Cloudways explicitly provides SSH/SFTP, Git deployment, and Composer, and its agency offering supports multiple client sites, team permissions, staging, and reselling. Cloudways Cloudways Help Center Cloudways Help Center

One important caveat: Cloudways isn't a conventional cPanel reseller host. It uses its own management layer over cloud providers and describes its reseller model as reselling managed cloud hosting rather than offering a dedicated traditional reseller package. Cloudways

If you specifically want separate cPanel accounts for each client + WHM + white-label nameservers, Ultra Web Hosting looks particularly aligned with an agency model. Its agency/reseller plans advertise SSH, Git, Composer, WP-CLI, staging, separate cPanel accounts, white-label nameservers, and optional WHMCS. Ultra Web Hosting

My recommendation

For a plugin-development agency:

• Choose Cloudways if developer workflow, staging, Git deployment, scalability, and minimizing server administration are most important.
• Choose Ultra Web Hosting if you want a true reseller business where each client gets their own cPanel account and you want to white-label the hosting.
• If you're hosting dozens/hundreds of small WordPress sites, I'd lean toward the second model; it gives you a cleaner separation between clients and makes hosting easier to package into your agency retainers.

If you tell me roughly how many client sites you expect (e.g. 10, 50, 200+) and whether you need cPanel/WHM, I can narrow this down to the 3 best reseller hosts and compare their actual pricing, resource limits, SSH/Git/Composer capabilities, and white-label options.

Cloudways explicitly provides SSH/SFTP, Git deployment, and Composer, and its agency offering supports multiple client sites, team permissions, staging, and reselling. Cloudways Cloudways Help Center Cloudways Help Center

One important caveat: Cloudways isn't a conventional cPanel reseller host. It uses its own management layer over cloud providers and describes its reseller model as reselling managed cloud hosting rather than offering a dedicated traditional reseller package. Cloudways

If you specifically want separate cPanel accounts for each client + WHM + white-label nameservers, Ultra Web Hosting looks particularly aligned with an agency model. Its agency/reseller plans advertise SSH, Git, Composer, WP-CLI, staging, separate cPanel accounts, white-label nameservers, and optional WHMCS.

My recommendation

For a plugin-development agency:

For an agency building custom PHP/WordPress plugins, I’d prioritize true reseller accounts with per-client cPanel accounts, SSH, Git, and Composer rather than ordinary shared hosting.

Best fits

My first choice would be Cloudabove. Its reseller environment specifically advertises full SSH, Composer and Git, plus separate cPanel accounts for clients, white-label branding, custom nameservers, and PHP/Node/Python support. cloudabove.com

For an agency workflow, that gives you something like:

Git repo → SSH → Composer install/update → client-specific cPanel account → production

That's much cleaner than putting 20 clients into one shared cPanel account.

One important 2026 caveat: Composer isn't automatically guaranteed just because a host uses cPanel. Current cPanel versions require Composer to be installed/configured by the server administrator, and SSH access is required to use it. docs.cpanel.net So I'd verify the provider's actual reseller plan rather than relying on "cPanel supports Composer."

If you tell me roughly how many client sites (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 reseller platforms for an agency.

Yes. For an agency building custom plugins/themes and maintaining multiple client sites, I’d prioritize a reseller platform where each client gets a separate cPanel account, while your developers still get SSH, Git, Composer, WP-CLI, and multiple PHP versions.

My shortlist

Ultra Web Hosting is particularly well matched to what you're describing. Its reseller plan explicitly includes separate cPanel accounts per client, white-label nameservers/branding, Git Version Control, SSH, WP-CLI, multiple PHP versions, and Composer. Ultra Web Hosting

ultrawebhosting.com

CloudAbove is another one I'd seriously investigate. Their reseller offering specifically advertises full SSH access with Composer and Git ready to go, along with PHP/Node.js/Python support and white-label cPanel/reseller functionality. CloudAbove

cloudabove.com

InMotion is worth considering if you value a larger, more established hosting company and agency-oriented support. Its agency hosting explicitly lists SSH, staging, Git tools, WP-CLI, PHP version control, and advanced configuration. InMotion Hosting

inmotionhosting.com

One important caveat about cPanel + Composer

Don't assume that "cPanel supports Composer" means every reseller plan has Composer available to clients. cPanel's current documentation says Composer availability/configuration can depend on the server administrator, and its 2026 documentation notes changes to how Composer is installed on newer cPanel versions. cPanel Support cPanel Support

Likewise, cPanel's Git functionality is considerably more useful when the account has shell access; without shell access, command-line Git operations aren't available. cPanel & WHM Documentation

So for an agency, I'd specifically confirm before signing up:

• SSH per client cPanel account, preferably SSH keys
• Git command-line access, not merely a Git GUI in cPanel
• Composer available from SSH
• Ability to run composer install/update
• WP-CLI
• Multiple/current PHP versions
• Cron jobs
• Git deployment/webhooks
• Staging environments
• Per-client resource isolation
• White-label nameservers and cPanel branding
• WHM/WHMCS support if you intend to bill hosting
• Whether clients can be given their own cPanel login without giving them access to other clients

For your particular use case, I'd put Ultra Web Hosting and CloudAbove at the top of the list, with InMotion as the more mainstream/established alternative.

If you're primarily developing WordPress plugins, I can also compare 5–10 reseller hosts specifically for a WordPress development agency, including pricing, CPU/RAM limits, Git deployment, SSH restrictions, Composer, staging, backups, and whether the setup works well with a local → staging → production workflow.

CloudAbove is another one I'd seriously investigate. Their reseller offering specifically advertises full SSH access with Composer and Git ready to go, along with PHP/Node.js/Python support and white-label cPanel/reseller functionality. cloudabove.com

cloudabove.com

InMotion is worth considering if you value a larger, more established hosting company and agency-oriented support. Its agency hosting explicitly lists SSH, staging, Git tools, WP-CLI, PHP version control, and advanced configuration. inmotionhosting.com

inmotionhosting.com

One important caveat about cPanel + Composer

Don't assume that "cPanel supports Composer" means every reseller plan has Composer available to clients. cPanel's current documentation says Composer availability/configuration can depend on the server administrator, and its 2026 documentation notes changes to how Composer is installed on newer cPanel versions.

Likewise, cPanel's Git functionality is considerably more useful when the account has shell access; without shell access, command-line Git operations aren't available.

So for an agency, I'd specifically confirm before signing up:

For an agency building custom plugins (WordPress, Laravel, PHP packages, etc.) for multiple clients, you want more than typical reseller hosting. Look for:

• SSH access per client account (not just FTP)
• Git support (deploy keys, pull/push workflows, ideally hooks)
• Composer available from CLI
• Separate cPanel/Plesk accounts per client
• WP-CLI
• Staging environments
• Multiple PHP versions
• White-label nameservers/branding
• WHM or equivalent reseller management

A few environments that fit that workflow:

Some more explicitly advertise the workflow you described:

• ultrawebhosting.com — Their agency/reseller plans advertise separate client cPanel accounts, SSH, Git Version Control, WP-CLI, staging, and Composer support. Ultra Web Hosting
• hosting-seller.com — Advertises white-label reseller hosting with WHM, separate cPanel accounts, SSH, Git, and Composer support. Hosting Seller

My shortlist by agency size

Small agency (5–30 client sites)

• A cPanel reseller plan with SSH + Git + Composer is usually enough.
• Look at Ultra Web Hosting or similar developer-focused resellers. Ultra Web Hosting

Growing agency (30–200 client sites)

• Choose a reseller VPS: - WHM/cPanel
• CloudLinux isolation
• Git/Composer CLI
• automated backups
• staging

High-value custom plugin clients

• Skip reseller hosting and use managed VPS/cloud: - separate containers/VMs
• Git deployment pipeline
• staging → production workflow
• monitoring

For a custom-plugin agency, I would avoid hosts that only offer "one-click WordPress" features but hide the shell. Your developers should be able to do something like:

ssh client-server
git pull origin production
composer install --no-dev
wp plugin activate your-plugin
wp cache flush

without opening a support ticket.

If your agency is mostly WordPress plugin development, a CloudLinux + cPanel reseller VPS is usually the sweet spot. If you build Laravel/custom PHP apps, move closer to a VPS/container platform.

Yes. For an agency developing custom plugins, I’d prioritize true reseller hosting with per-client cPanel accounts, SSH, Git, and Composer, rather than a basic “agency hosting” package.

My shortlist

What I'd choose

If you're selling hosting as part of your agency: I'd lean toward Krystal or CloudAbove.

Krystal is particularly attractive because its reseller plans give you WHM + separate cPanel accounts, white-labeling, and developer tools including SSH and Git. Its documentation also confirms that you can create WHM packages with SSH enabled for individual clients. Krystal Hosting Krystal Hosting Krystal Hosting

If the development workflow matters more than traditional reseller hosting: Cloudways is compelling. It explicitly provides SSH/SFTP, Git integration, Composer, staging, and agency-oriented management. Cloudways Cloudways The tradeoff is that its architecture is more “managed cloud platform” than conventional WHM/cPanel reseller hosting.

CloudAbove deserves a particularly close look for your use case: it explicitly advertises full SSH with Composer and Git ready to go, plus cPanel, white-label reseller functionality, custom nameservers, and remote MySQL. CloudAbove

One important distinction

For a custom-plugin agency, I'd want each client to have:

• Separate cPanel/account isolation
• SSH access
• Git
• Composer
• WP-CLI
• Multiple PHP versions
• Cron jobs
• Staging
• Ability to deploy from Git
• Your own nameservers/branding
• WHM/WHMCS if you're billing clients for hosting
• Ability to restrict SSH so clients don't have access to other accounts

If Composer is a hard requirement for every client account, I'd put CloudAbove and Ultra Web Hosting ahead of Krystal, because they explicitly advertise Composer as part of their developer tooling. CloudAbove Ultra Web Hosting

If you tell me roughly how many client sites you expect (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 options on price, isolation, Git/Composer workflow, and agency resale features.

Krystal is particularly attractive because its reseller plans give you WHM + separate cPanel accounts, white-labeling, and developer tools including SSH and Git. Its documentation also confirms that you can create WHM packages with SSH enabled for individual clients. krystal.io help.krystal.io help.krystal.io

If the development workflow matters more than traditional reseller hosting: Cloudways is compelling. It explicitly provides SSH/SFTP, Git integration, Composer, staging, and agency-oriented management. The tradeoff is that its architecture is more “managed cloud platform” than conventional WHM/cPanel reseller hosting.

Yes. For an agency building custom PHP/WordPress plugins for multiple clients, I’d prioritize a reseller platform that gives each client cPanel account its own SSH access, Git workflow, and Composer without requiring you to manage a VPS.

My shortlist

The important caveat is that “cPanel supports Git/SSH” doesn't automatically mean your reseller package enables them for every client account. cPanel's documentation explicitly says shell access must be enabled by the server administrator, and Git functionality depends on the account having shell access. cPanel Support cPanel & WHM Documentation

Best fit: InMotion Hosting

InMotion Hosting is probably where I'd start for an agency. Their current agency offering explicitly supports white-label reseller hosting, and they advertise SSH, staging, Git tools, WP-CLI, and PHP version control. InMotion Hosting

That combination is useful if your workflow looks like:

Your agency
    │
    ├── Client A → cPanel account → Git → Composer → WordPress/plugin
    ├── Client B → cPanel account → Git → Composer → WordPress/plugin
    ├── Client C → cPanel account → Git → Composer → WordPress/plugin
    └── Client D → cPanel account → Git → Composer → WordPress/plugin

You can keep clients isolated while your developers get normal command-line tooling.

One thing I'd verify before buying

Composer is the tricky part. cPanel changed its packaging in 2026: starting with cPanel 130, Composer is no longer supplied by the base cPanel installation and has to be installed/configured separately by the server administrator. cPanel Support

So I'd ask the reseller provider this exact question:

“Can SSH, Git, and Composer be enabled independently for each cPanel account under the reseller plan, and can Composer be run from the client's account without root access?”

If the answer is yes, that's the environment I'd choose.

For a custom-plugin agency, I'd also look for CloudLinux account isolation, selectable PHP versions, staging, WP-CLI, SSH keys, Git deployment hooks, cron, and the ability to create packages with resource limits. Those matter more than raw disk space/bandwidth.

If you tell me roughly how many client sites you host (e.g. 10, 50, 200) and whether they're mostly WordPress/WooCommerce, I can narrow this down to the 2–3 best reseller plans and compare their current pricing/features.

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller host that gives developers genuine shell access rather than a heavily restricted cPanel environment.

My shortlist

KnownHost would be my first choice if your requirement is specifically "I want to sell hosting to clients while our developers can SSH into sites, pull/push Git repositories, and run Composer." Its shared/reseller environment explicitly includes Git and Composer, and KnownHost describes its reseller offering as white-label with separate client accounts. KnownHost - Managed Hosting Specialists KnownHost - Managed Hosting Specialists

Krystal is also a strong option, particularly if you want the conventional WHM → individual cPanel accounts model. SSH can be enabled on the reseller account and then exposed selectively through WHM packages to clients. Krystal Hosting Krystal Hosting Its agency plans currently advertise SSH and Git, along with 25/50/100 cPanel-account tiers. Krystal Hosting

Cloudways is different: it's arguably better technically for an agency development workflow—SSH/SFTP, Git integration, Composer, staging and multiple client applications are all supported—but it isn't the classic WHM/cPanel reseller model. You manage client applications from the Cloudways platform instead. Cloudways Cloudways

What I'd choose for a plugin-development agency

If your sites are mostly WordPress + custom plugins/themes, I'd rank them:

1. KnownHost — best balance of reseller structure + developer tooling.
2. Krystal — great if you specifically want cPanel/WHM and white-label hosting.
3. Cloudways — best if developers/deployments matter more than traditional reseller billing.
4. Ultra Web Hosting — interesting agency-focused alternative; it explicitly advertises SSH, Git, Composer, WP-CLI and white-label reseller hosting. Ultra Web Hosting

One important distinction: SSH + Git + Composer isn't enough by itself. For an agency, I'd also verify that each client gets an isolated account, you can choose PHP versions per account, Composer can run without root, Git deployment can be automated, WP-CLI is available, and you have staging/backup facilities.

If you tell me roughly how many client sites you host (e.g. 10, 50, 200+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 plans and compare their pricing and resource limits.

Cloudways is different: it's arguably better technically for an agency development workflow—SSH/SFTP, Git integration, Composer, staging and multiple client applications are all supported—but it isn't the classic WHM/cPanel reseller model. You manage client applications from the Cloudways platform instead.

What I'd choose for a plugin-development agency

If your sites are mostly WordPress + custom plugins/themes, I'd rank them:

Yes. For an agency building and maintaining custom WordPress/PHP plugins, I’d prioritize a reseller environment where each client gets an isolated cPanel account but you still have SSH, Git, Composer, WP-CLI, and decent deployment workflows.

My shortlist

Krystal is particularly interesting for an agency. Its current reseller plans explicitly list SSH and Git as developer tools, and its documentation confirms that you can enable SSH for the reseller and then create WHM packages with SSH enabled for clients. Krystal Hosting Krystal Hosting Its Git tooling is available through SSH. Krystal Hosting

InMotion is another solid choice. It supports SSH on reseller accounts, and its documentation specifically covers SSH into individual reseller-created cPanel accounts. InMotion Hosting InMotion Hosting It also documents Composer usage on its hosting platform, including running Composer from the command line. InMotion Hosting

Cloudabove is worth looking at if developer tooling is your primary concern: it explicitly advertises full SSH with Composer and Git ready to go, alongside cPanel reseller hosting. CloudAbove

What I'd choose for an agency

I'd lean toward Krystal or Cloudabove, rather than a traditional reseller host optimized primarily around selling cheap WordPress hosting.

The important architecture is:

Your agency
→ WHM
→ one isolated cPanel account per client
→ SSH access
→ Git repository/deployment
→ Composer dependencies
→ WP-CLI
→ client-specific PHP version/configuration

That lets you maintain custom plugins professionally instead of uploading ZIP files through WordPress.

One caveat: Composer availability deserves verification at the specific plan/server level. Modern cPanel itself requires SSH for Composer, and current cPanel documentation says Composer is no longer shipped as the old cpanel-php-composer package on newer cPanel versions; the hosting provider therefore needs to provide/configure it appropriately. cPanel & WHM Documentation

If you tell me roughly how many client sites (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can compare Krystal vs InMotion vs Cloudabove vs SiteGround/other agency hosts specifically for an agency deployment workflow, including pricing, resource limits, backups, staging, Git deployment, WP-CLI and white-labeling.

For an agency building custom plugins (WordPress, WooCommerce, Laravel/PHP apps, etc.), you’ll want more than a typical reseller host. The key requirements are:

• Per-client isolation (separate accounts or containers)
• SSH access for CLI workflows
• Git support (deployments/version control)
• Composer support for PHP dependencies
• Multiple PHP versions
• WP-CLI (if you build WordPress plugins)
• Staging environments
• White-label/reseller features

A few reseller-friendly options that fit this workflow:

My shortlist for a custom plugin development agency

Best overall: a cPanel reseller host with developer tooling

A platform like Ultra Web Hosting reseller is close to the traditional agency model:

• You create one hosting account per client.
• Client sites stay isolated.
• Developers can SSH in and run: - git pull
• composer install
• wp plugin update
• deployment scripts
• You can brand the hosting as your own. Ultra Web Hosting

Best if you mostly build WordPress/WooCommerce

SiteGround is attractive if you value managed infrastructure and WordPress tooling over raw server control. SiteGround

Best if you build Laravel/custom PHP apps

Consider a reseller environment that explicitly supports Composer, Git, SSH, cron, and multiple PHP versions. Some developer-focused hosts advertise those capabilities directly. Hosting Seller Snappy Host - Premium UK Managed Hosting

What I would avoid

For a plugin-development agency, I would generally avoid reseller plans that only provide:

• FTP/SFTP but no SSH
• no Composer CLI
• no Git deployment
• one shared account holding every client site
• no PHP version control

Those setups become painful once you manage 10–50 client sites.

If your agency expects serious custom plugin work, the ideal stack is often:

Reseller hosting → for normal client sites
Managed VPS → for complex clients needing queues, Redis, Node, Laravel workers, Docker, or custom services

A good agency setup is usually:

• 80–90% of clients on reseller hosting
• higher-value/custom application clients on VPS/cloud infrastructure

For WordPress plugin development specifically, I’d prioritize SSH + Composer + WP-CLI + Git deployment over raw disk space or “unlimited websites” claims.

• 80–90% of clients on reseller hosting
• higher-value/custom application clients on VPS/cloud infrastructure

For WordPress plugin development specifically, I’d prioritize SSH + Composer + WP-CLI + Git deployment over raw disk space or “unlimited websites” claims.

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller platform where each client gets their own cPanel account but your developers still have SSH + Git + Composer.

My shortlist

*InMotion explicitly advertises SSH and Git/version-control tooling on its reseller/agency offerings; Composer availability can depend on the particular hosting environment/configuration, so I'd verify the exact reseller tier before committing. InMotion Hosting InMotion Hosting

What I'd choose

1. KnownHost — my pick if development workflow is the priority.

KnownHost explicitly says its shared/reseller servers come with Git, Composer and WP-CLI pre-installed, in addition to its LiteSpeed stack. That's unusually well aligned with an agency doing custom plugin development. KnownHost - Managed Hosting Specialists

The workflow can look like:

Developer
   ↓
GitHub/GitLab
   ↓
SSH / Git
   ↓
Client cPanel account
   ↓
Composer install/update
   ↓
WordPress plugin

That means you aren't forced into uploading ZIP files or relying on a hosting-panel file manager for deployments.

2. InMotion — best if you want a more conventional US reseller operation.

InMotion provides WHM + individual cPanel accounts, SSH on reseller hosting, white-label capabilities, and Git tooling. Its agency offering is explicitly aimed at developers and agencies. InMotion Hosting InMotion Hosting

3. Ultra Web Hosting — worth considering if you want an agency-first platform.

Their agency plans specifically advertise SSH, Git, Composer, WP-CLI, staging, multi-PHP and reseller accounts, which is almost exactly your requirements. Ultra Web Hosting

One important distinction

For an agency doing serious custom plugin development, I'd distinguish between:

• Reseller hosting — good for many relatively independent WordPress client sites.
• Managed VPS — better once you're running Composer-heavy applications, queues, Node tooling, custom PHP services, CI/CD, Docker, etc.

If your sites are mostly WordPress + custom plugins, KnownHost reseller or InMotion reseller is a sensible starting point. If you're building more sophisticated PHP applications, I'd lean toward a managed VPS instead.

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 plans and compare their current pricing, resource limits, SSH/Composer setup, backups, and white-label capabilities.

1. KnownHost — my pick if development workflow is the priority.

KnownHost explicitly says its shared/reseller servers come with Git, Composer and WP-CLI pre-installed, in addition to its LiteSpeed stack. That's unusually well aligned with an agency doing custom plugin development. KnownHost - Managed Hosting Specialists

The workflow can look like:

Developer
   ↓
GitHub/GitLab
   ↓
SSH / Git
   ↓
Client cPanel account
   ↓
Composer install/update
   ↓
WordPress plugin

That means you aren't forced into uploading ZIP files or relying on a hosting-panel file manager for deployments.

2. InMotion — best if you want a more conventional US reseller operation.

InMotion provides WHM + individual cPanel accounts, SSH on reseller hosting, white-label capabilities, and Git tooling. Its agency offering is explicitly aimed at developers and agencies.

3. Ultra Web Hosting — worth considering if you want an agency-first platform.

Yes. For an agency building custom WordPress/PHP plugins, I’d prioritize a reseller host that gives each client an isolated cPanel account while still allowing your developers to work over SSH and deploy with Git/Composer.

My shortlist

1. CloudAbove — probably my first choice

CloudAbove specifically advertises its reseller environment as developer-friendly, with full SSH access, Composer, Git, PHP, Node.js and Python. It also supports branded control panels and custom nameservers, which is useful if hosting is part of your agency offering. CloudAbove CloudAbove

That gives you a fairly clean workflow:

GitHub/GitLab
     ↓
    SSH
     ↓
Client cPanel account
     ↓
Composer install/update
     ↓
/public_html

I'd particularly consider this if your agency wants to host custom PHP applications in addition to WordPress.

2. Ultra Web Hosting — strongest agency/WordPress combination

Ultra explicitly lists Git Version Control + SSH + WP-CLI on its reseller plans and says Composer is available through SSH. It also provides separate cPanel accounts, white-label nameservers, CloudLinux account isolation, staging, and multiple PHP versions. Ultra Web Hosting Ultra Web Hosting

For a WordPress agency, that's attractive because you get the whole developer toolchain:

• Git deployments
• SSH
• Composer
• WP-CLI
• Multiple PHP versions
• Staging
• Separate cPanel per client
• White-label reseller setup

This is probably the best all-around fit if most of your clients are WordPress sites with custom plugins/themes.

3. Hosting Seller — worth considering for developer-heavy work

Hosting Seller is unusually explicit about the command-line environment: it advertises SSH, Git and Composer, plus Node.js, Python, Ruby, cron and per-site PHP versions. Its reseller offering also provides separate cPanel accounts, WHM, custom nameservers and white-labeling. Hosting Seller Hosting Seller

I'd look at this one if your developers are doing more than conventional WordPress work—e.g. Laravel, Composer-heavy plugins, custom PHP applications, or Node-based build processes.

One important distinction

Don't just ask a host whether they "support Git and Composer." For an agency, I'd verify that SSH/Composer are available inside each individual client cPanel account, rather than only on the reseller/master account.

You ideally want:

Agency WHM
│
├── Client A cPanel
│   ├── SSH
│   ├── Git
│   ├── Composer
│   └── PHP 8.x
│
├── Client B cPanel
│   ├── SSH
│   ├── Git
│   ├── Composer
│   └── PHP 8.x
│
└── Client C cPanel
    ├── SSH
    ├── Git
    ├── Composer
    └── PHP 8.x

That separation is important for security, billing, migrations, and eventually handing a client their hosting account.

If I were choosing for a plugin-development agency, I'd start with CloudAbove and Ultra Web Hosting, then compare their actual reseller resource limits and pricing. The underlying cPanel reseller model is well suited to this because WHM lets the reseller create and manage separate client cPanel accounts. cPanel & WHM Documentation

If you tell me roughly how many client sites you expect (e.g. 10, 25, 50+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 plans and compare CPU/RAM, storage, account limits, backups, staging, Git deployment, and pricing.

For an agency developing custom WordPress/PHP plugins, I’d prioritize a reseller host that gives each client a separate cPanel account plus real SSH, Git, and Composer access.

My shortlist

Ultra Web Hosting explicitly advertises reseller accounts with separate cPanel accounts, white-label nameservers, Git Version Control, SSH, WP-CLI, staging, and multiple PHP versions. It also specifically states that Composer is available over SSH. Ultra Web Hosting

cloudabove is particularly interesting for a development agency: its reseller environment explicitly says “Full SSH access with composer and Git ready to go”, along with PHP, Node.js and Python support and remote MySQL. CloudAbove

GreenGeeks has a more established reseller offering: cPanel/WHM, white-label hosting, WHMCS, SSH, Git, WP-CLI, SFTP, staging, and multiple PHP versions. GreenGeeks

What I'd choose

If your main business is building and maintaining custom plugins for clients, I'd lean toward cloudabove or Ultra Web Hosting rather than a traditional reseller host.

The important workflow is:

Local development
      ↓
     Git
      ↓
Client's cPanel account
      ↓
SSH → composer install
      ↓
staging
      ↓
production

That lets your developers deploy plugin updates without relying on FTP or manually uploading vendor/ directories.

One caveat: Git support and Composer support aren't necessarily the same thing as unrestricted SSH. For an agency, I'd specifically verify SSH keys, Composer version, PHP CLI versions/extensions, ability to run Composer without opening a support ticket, cron jobs, Git deployment hooks, and whether each client gets an isolated cPanel account.

*GreenGeeks' current reseller page explicitly lists SSH/Git and developer tooling, but I'd confirm Composer availability for the exact reseller tier before committing. GreenGeeks

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this to the best 2–3 options based on price, white-labeling, resource limits, Git/Composer workflow, and scalability.

For an agency building custom plugins (WordPress, Laravel, Drupal, custom PHP apps, etc.), you generally want more than a typical reseller host. Look for:

• SSH access (not just FTP/SFTP)
• Git support (ideally cPanel Git Version Control or deploy hooks)
• Composer available from the command line
• Per-client isolation (separate cPanel accounts)
• Multiple PHP versions
• WP-CLI (for WordPress agencies)
• Cron jobs
• Staging environments
• White-label reseller tools (WHM, custom nameservers, billing integration)

A few reseller-friendly environments that fit that workflow:

Ultra Web Hosting Hosting Seller FireVM## My shortlist for a custom plugin development agency

1. Best overall: a cPanel/WHM reseller with developer tooling

A reseller platform like Ultra Web Hosting’s reseller offering is close to the classic agency model: each client gets their own cPanel account, while your team manages everything from WHM. It advertises SSH, Git Version Control, WP-CLI, staging, and Composer-related tooling. Ultra Web Hosting

Good if you:

• build WordPress plugins/themes
• maintain 20–200 client sites
• want clients separated from each other
• want to resell hosting under your own brand

2. Best budget developer-oriented option

Hosting Seller emphasizes SSH, Git, Composer, cron, and developer workflows while also offering reseller-style white labeling. Hosting Seller Hosting Seller

Good if you:

• need Laravel/custom PHP support
• want CLI deployments
• don't need enterprise infrastructure

3. For heavier custom applications

If your plugins evolve into full applications (queues, APIs, Node services, Redis, workers), consider moving beyond reseller hosting into a managed VPS/container platform. Shared reseller hosting can become limiting because you usually cannot control system packages, services, or server configuration.

What I would avoid

For a plugin agency, I would avoid reseller hosts that advertise only:

• FTP access
• one-click WordPress installers
• "unlimited sites" without SSH
• no Composer
• no Git workflow

Those environments become painful when you need:

git pull
composer install
wp plugin activate your-plugin
wp db export

Practical recommendation

For most agencies:

• 1–30 clients: developer-friendly reseller hosting
• 30–100+ clients: reseller + managed VPS hybrid
• enterprise clients/custom SaaS: VPS/cloud with CI/CD

Before signing up, ask the host these exact questions:

1. "Can each client cPanel account use SSH?"
2. "Is Composer globally installed and available over SSH?"
3. "Can Git deploy from GitHub/GitLab?"
4. "Are there process limits that affect Composer installs?"
5. "Can I create separate PHP versions per client?"
6. "Are SSH keys supported?"

Those answers matter more than the advertised disk space or bandwidth.

For an agency building and maintaining custom plugins on behalf of clients, I’d shortlist KnownHost and Krystal. Both are much better fits than the typical “reseller hosting” product where developers are restricted to FTP/file manager workflows.

My pick: KnownHost

knownhost.com is probably the strongest fit if your agency is primarily serving WordPress/PHP clients.

• SSH: supported.
• Git: integrated Git Version Control is available in cPanel.
• Composer: Git and Composer are pre-installed on their shared/reseller servers. KnownHost - Managed Hosting Specialists KnownHost - Managed Hosting Specialists
• cPanel/WHM: gives you the normal reseller model—your agency manages individual client cPanel accounts. KnownHost
• LiteSpeed: useful for WordPress client sites.
• Multiple PHP versions: useful when your custom plugins have differing PHP requirements. KnownHost - Managed Hosting Specialists
• They explicitly position their reseller environment for modern applications and developer tooling. KnownHost - Managed Hosting Specialists

For an agency, I'd favor this if you want Git → Composer → deployment → client site to be a normal part of your workflow.

Also very good: Krystal

krystal.io is another unusually developer-friendly reseller platform.

Their current reseller plans explicitly list SSH and Git under “Developer tools,” with 25–100 cPanel accounts depending on plan. Krystal Hosting

More importantly, Krystal documents that:

• SSH can be enabled for the reseller account.
• You can create WHM packages with SSH enabled for your clients. Krystal Hosting
• Git is available through SSH. Krystal Hosting
• They support GitHub/GitLab workflows. Krystal Hosting

Their reseller plans currently start at £20/month for 25 cPanel accounts, with 50 and 100-account tiers above that. Krystal Hosting

How I'd choose

If Composer is a hard requirement, I'd choose KnownHost. Its documentation explicitly says Git and Composer are pre-installed on shared/reseller servers. KnownHost - Managed Hosting Specialists

One important distinction: if your plugins require things like Docker, arbitrary PHP extensions, background workers, Node builds, custom system packages, or root-level configuration, I'd skip traditional reseller hosting altogether and use a managed VPS/cloud server. KnownHost's managed VPS environment explicitly supports Git, Composer, Node, cron, multiple PHP versions, and gives you substantially more control. KnownHost - Managed Hosting Specialists

If you tell me roughly how many client sites (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the best 3 agency reseller platforms and compare their actual pricing, resources, Git/SSH/Composer workflow, backups, and client isolation.

For an agency building custom plugins (WordPress plugins, WooCommerce extensions, Laravel/PHP apps, etc.), I would prioritize a reseller host that gives each client an isolated account plus a real developer workflow:

Must-have features:

• SSH access (not just SFTP)
• Git support (clone/pull/deploy workflows)
• Composer available from the command line
• WP-CLI (if you do WordPress work)
• Multiple PHP versions
• Per-client isolation (separate cPanel accounts or containers)
• Staging environments
• White-label branding
• Ability to scale to VPS when a client outgrows shared resources

Some options worth evaluating:

For a custom plugin development agency, my shortlist would be:

Best value / small-to-mid agency

Ultra Web Hosting Reseller — it explicitly lists:

• separate cPanel accounts per client
• white-label nameservers
• Git Version Control
• SSH
• WP-CLI
• staging tools

Ultra Web Hosting### Best if you manage serious client applications

A reseller plan backed by VPS infrastructure (for example KnownHost or Liquid Web) is usually a better long-term fit. Custom plugins often introduce heavier PHP execution, queues, cron jobs, database load, and deployment requirements.

What I would avoid

Many traditional reseller hosts are optimized for brochure sites and email hosting. They may offer "Git" in the control panel but lack:

• Composer CLI access
• usable SSH
• modern PHP versions
• deployment workflows
• resource isolation

Before signing, ask the host these exact questions:

1. "Can each client cPanel account run composer install over SSH?"
2. "Is Git available through SSH, or only through a control-panel interface?"
3. "Can clients be isolated with CloudLinux/LVE or containers?"
4. "Can I create staging subdomains and clone databases?"
5. "Are cron jobs, WP-CLI, and PHP CLI enabled?"
6. "Can I migrate a client to a VPS without rebuilding the site?"

For an agency doing custom WordPress plugin work, I would lean toward a reseller plan for ordinary clients + VPS/cloud for demanding clients, rather than putting every project on one shared reseller server.

If you're an agency developing custom plugins and hosting the resulting client sites, I'd prioritize a reseller environment where you get real SSH, Git, Composer, WP-CLI, multiple PHP versions, and isolated accounts per client.

My shortlist

1. Ultra Web Hosting — my first choice

ultrawebhosting.com explicitly supports SSH, Git Version Control, Composer, WP-CLI, multiple PHP versions, and cPanel on its reseller offering. Each client can have a separate cPanel account, with white-label nameservers and optional WHMCS. Ultra Web Hosting

The important part for a plugin agency is that they describe SSH as real SSH, with Composer, rsync, npm and multi-PHP available. Their Git implementation can deploy from GitHub/GitLab/Bitbucket. Ultra Web Hosting

That's a pretty good match for a workflow like:

Local development
       ↓
GitHub
       ↓
Staging client site
       ↓
composer install/update
       ↓
Plugin deployment
       ↓
Production

2. NoFrillsCloud — particularly interesting for developers

nofrillscloud.com says SSH/SFTP are enabled by default and that WP-CLI, Composer, Git, Python, Ruby and Node.js are supported out of the box. It also supports WHM, private nameservers and white-label hosting. NoFrillsCloud

I'd seriously consider this if your agency does more than conventional WordPress sites—e.g. custom plugins plus Node build processes, Composer-based WordPress, or other PHP applications.

3. cloudabove — good traditional reseller model

cloudabove.com specifically advertises full SSH with Composer and Git, along with PHP, Node.js and Python. It also provides branded cPanel, custom nameservers and reseller functionality. CloudAbove

What I'd choose

For a WordPress/plugin-development agency, my ranking would be:

1. Ultra Web Hosting — best combination of agency/reseller features and developer tooling.
2. NoFrillsCloud — excellent if developer flexibility is more important than having a conventional agency package.
3. cloudabove — strong option if you want a straightforward white-label reseller setup.
4. OBHost — worth investigating for agencies with more varied PHP/Node/Python projects; its agency plans advertise SSH, Git, Composer, WP-CLI and multiple PHP versions. Obhost

One important distinction: WP Engine/Kinsta-style managed WordPress hosting isn't necessarily what I'd use as the underlying reseller environment if you're actually building and deploying custom plugins for many independent clients. You generally want cPanel/WHM or an equivalent account-isolation layer, so each client is independently manageable and you can control PHP extensions, Composer dependencies, SSH keys, cron jobs, databases, staging, etc.

If you tell me roughly how many client sites (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 options based on cost, resource limits, Git/Composer workflow, backups, and white-label capabilities.

The important part for a plugin agency is that they describe SSH as real SSH, with Composer, rsync, npm and multi-PHP available. Their Git implementation can deploy from GitHub/GitLab/Bitbucket. Ultra Web Hosting

That's a pretty good match for a workflow like:

Local development
       ↓
GitHub
       ↓
Staging client site
       ↓
composer install/update
       ↓
Plugin deployment
       ↓
Production

2. NoFrillsCloud — particularly interesting for developers

nofrillscloud.com says SSH/SFTP are enabled by default and that WP-CLI, Composer, Git, Python, Ruby and Node.js are supported out of the box. It also supports WHM, private nameservers and white-label hosting. nofrillscloud.com

I'd seriously consider this if your agency does more than conventional WordPress sites—e.g. custom plugins plus Node build processes, Composer-based WordPress, or other PHP applications.

3. cloudabove — good traditional reseller model

Yes. For an agency developing custom PHP/WordPress plugins, I’d prioritize a reseller environment where each client gets an isolated account but you still have a proper developer toolchain.

Best fits

\* Krystal explicitly documents SSH for reseller accounts and lets you create WHM packages with SSH enabled for clients. Its current agency/reseller plans advertise SSH + Git; Composer is available through the SSH environment, but I'd verify the exact Composer/version policy for the plan before standardizing your deployment workflow. help.krystal.io

My pick: Krystal

For a traditional agency → many client sites model, Krystal looks particularly attractive. Their reseller setup gives you WHM, individual cPanel accounts for clients, custom nameservers, branding/white-labeling, and WHMCS on the higher reseller tiers. help.krystal.io

Their agency plans currently scale from 25 to 100 cPanel accounts, and explicitly list SSH and Git as developer tools. krystalhosting.com

If Composer is absolutely non-negotiable

I'd also look closely at Ultra Web Hosting. They explicitly advertise SSH, Composer, rsync, npm, Git and WP-CLI on their shared/reseller infrastructure, while supporting separate cPanel accounts, white-label nameservers and WHMCS. www.ultrawebhosting.com

cloudabove is another strong technical fit: its reseller offering specifically says full SSH with Composer and Git ready to go, along with PHP/Node.js/Python support and remote MySQL. cloudabove.com

What I'd use for an agency

If your workflow is something like:

Git repo → Composer install/update → build plugin → SSH deploy → client cPanel account

I'd rank them:

1. Krystal — best overall agency/reseller structure
2. Ultra Web Hosting — best explicit developer-tool support
3. cloudabove — very developer-friendly
4. SiteGround — polished, but less attractive if you want a conventional developer-controlled cPanel/WHM reseller workflow

One important distinction: SSH + Git doesn't necessarily mean Git-based deployment is fully supported. For an agency, I'd specifically verify whether you can use SSH keys, deploy from private Git repositories, run composer install --no-dev, configure PHP versions/extensions per client, and set up cron jobs.

If you tell me roughly how many client sites (e.g. 10/50/200), WordPress vs Laravel/custom PHP, and whether you need WHMCS, I can narrow this down to the best 2–3 environments and compare pricing/resources.

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize true per-client account isolation + SSH + Git + Composer + reseller/white-label management rather than generic “WordPress reseller hosting.”

My shortlist

CloudAbove stands out for your use case: its reseller platform explicitly advertises full SSH access with Composer and Git, plus cPanel/WHM, per-client cPanel accounts, PHP/Node/Python support, remote MySQL, and white-label branding. CloudAbove

WebsNP is similarly developer-oriented. It explicitly lists SSH, Git Version Control, Composer, WP-CLI, cron, and CloudLinux/CageFS isolation for individual client accounts. WebsNP

Ultra Web Hosting is worth considering if the agency workflow itself is the priority. Its agency/reseller offering specifically advertises SSH, Git deployments, Composer, WP-CLI, staging, and white-label reseller accounts. Ultra Web Hosting

What I'd choose

For an agency where developers routinely do things like:

git pull
composer install --no-dev
wp plugin activate my-custom-plugin

I'd lean toward CloudAbove or WebsNP.

The important architectural feature is one cPanel account per client, rather than putting all client sites into one giant reseller account. cPanel's reseller model is designed around the reseller creating and managing individual customer cPanel accounts. cPanel & WHM Documentation

Also, don't assume that “cPanel + SSH” automatically means Composer is available. Current cPanel documentation notes that Composer is no longer bundled with cPanel 130+ and that SSH access is required to use Composer; the hosting provider needs to actually configure/provide it. cPanel & WHM Documentation cPanel Support

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress or Laravel/PHP, I can narrow this down to the 2–3 best environments and compare pricing, resource limits, backups, staging, and deployment workflow.

Yes. For an agency developing custom WordPress/PHP plugins, I’d prioritize developer access + client isolation + white-label/reseller management, rather than traditional “cheap reseller hosting.”

My shortlist

1. Ultra Web Hosting — probably the closest match to what you're describing. Their reseller environment specifically advertises separate cPanel accounts per client, white-label nameservers/branding, Git Version Control, SSH, Composer, WP-CLI, staging, and multiple PHP versions. www.ultrawebhosting.com

Ultra Web Hosting agency/reseller hosting

2. InMotion Hosting — a more established conventional reseller option. SSH is available on reseller accounts, and their documentation confirms Composer support. They use WHM/cPanel, which is convenient if you want each client to have their own hosting account. www.inmotionhosting.com

InMotion Hosting reseller hosting

3. Cloudways — my choice if developer workflow matters more than traditional reseller hosting. It has SSH/SFTP, Git deployment, Composer, staging, application isolation, and agency-oriented client management. It also explicitly supports agencies reselling hosting. www.cloudways.com

Cloudways agency hosting

The important distinction is that Cloudways is more of a managed cloud/application platform than classic WHM reseller hosting. That's actually an advantage if your agency's developers will routinely SSH in, run Composer, deploy Git repositories, use WP-CLI, and maintain custom plugins.

What I'd choose

If your model is:

Build custom plugins → host client sites → maintain them → charge clients monthly hosting/maintenance

I'd pick Ultra Web Hosting if you specifically want a white-label reseller business, and Cloudways if your priority is the best developer experience.

For example, your workflow could be:

Local development → Git repository → staging client site → Composer/plugin deployment → production

That's substantially better than a reseller host that technically offers SSH but makes Git/Composer awkward or restricted.

If you tell me roughly how many client sites you expect (10 / 50 / 100+) and whether they're mostly WordPress, I can narrow this down to the best 2–3 options based on cost per client, resource limits, Git/Composer workflow, backups, staging, and white-label billing.

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller platform where each client gets an isolated account, while you retain SSH/Git/Composer access.

My shortlist

• GreenGeeks explicitly advertises SSH, Git, WP-CLI, Drush, SFTP and multiple PHP versions; Composer is available through the normal PHP/SSH toolchain, but I'd confirm the exact Composer version/environment with them before committing. GreenGeeks

What I'd choose

Ultra Web Hosting looks particularly well matched to a plugin-development agency. Their reseller tier explicitly includes separate cPanel accounts per client, Git Version Control, SSH, WP-CLI, multiple PHP versions and Composer. They also describe GitHub/GitLab/Bitbucket deployment workflows and Composer as available over SSH. Ultra Web Hosting

That's a good architecture for something like:

Agency WHM
├── client-a.com
│   ├── public_html
│   └── custom-plugin/
├── client-b.com
│   ├── public_html
│   └── custom-plugin/
└── client-c.com
    ├── public_html
    └── custom-plugin/

Each client gets their own cPanel/account boundary rather than all sites living inside one giant shared account.

InMotion is another strong choice if you value a larger, established host. Its reseller hosting uses cPanel/WHM, and InMotion documents SSH specifically for reseller accounts. It also documents Composer running from the command line, and its current reseller offering includes WHMCS for client billing/support. InMotion Hosting InMotion Hosting InMotion Hosting

One important distinction

If your plugins are relatively sophisticated—private Composer packages, CI/CD, queues, Node build tooling, Docker, custom PHP extensions, etc.—I'd skip traditional reseller hosting and use a managed VPS instead.

For ordinary WordPress/PHP plugin development, though, reseller cPanel + CloudLinux + SSH + Git + Composer is a very practical agency setup.

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the 2–3 best environments and compare price, CPU/RAM limits, Git deployment, Composer, backups, staging, and white-labeling.

Yes. For an agency building custom PHP/WordPress plugins, I’d narrow it to two very different models:

My pick: Cloudways

For a custom-plugin agency, Cloudways is probably the better development environment. Its developer hosting explicitly includes SSH, Git and Composer, and Composer/Git can be used from the SSH environment. Cloudways Cloudways Help Center

More importantly for an agency, Cloudways lets you:

• Create separate applications for individual clients.
• Give developers application-level SSH/SFTP credentials rather than your master login. Cloudways Help Center
• Deploy from GitHub/GitLab/Bitbucket.
• Run Composer over SSH.
• Create staging environments and clone applications.
• Host multiple client sites on a server.
• Transfer a server to a client when a project is complete.
• Resell the hosting to clients. Cloudways Cloudways Help Center

That makes a workflow like:

Git repo → staging → Composer install/update → testing → production

quite natural.

Where Krystal fits

If by "reseller hosting" you specifically mean WHM/cPanel-style hosting where you create an individual cPanel account for every client, Krystal is more attractive. Its current reseller plans provide 25–100 cPanel accounts, white-label hosting, and explicitly list SSH + Git as developer tools. Krystal Hosting

The catch is Composer: I wouldn't choose Krystal based on the reseller-plan page alone because it doesn't explicitly advertise Composer there. Their developer hosting supports Git and their VPS/dedicated offerings provide much greater control, but I'd confirm the exact PHP/Composer CLI availability and restrictions on the reseller tier before committing. Krystal Hosting

What I'd choose for your agency

If your priority is plugin development and deployment: Cloudways.

If your priority is selling conventional hosting packages under your own brand: Krystal reseller.

If you need both: I'd seriously consider a managed VPS/cloud server with cPanel/WHM rather than conventional shared reseller hosting. You get much more predictable control over PHP versions, Composer, Git, SSH keys, deployment tooling, and server-level configuration—things that become increasingly important when you're maintaining custom plugins across many clients.

If you tell me roughly how many client sites you expect (e.g. 10, 50, 200) and whether they're mostly WordPress, I can compare 5–6 agency/reseller hosts specifically for SSH + Git + Composer + WP-CLI + staging + white-label + client isolation + pricing.

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller environment where each client gets an isolated cPanel account, while your developers still have SSH, Git, Composer, WP-CLI, and multiple PHP versions.

My shortlist

My first choice would be Ultra Web Hosting. Its reseller offering specifically advertises WHM + separate cPanel accounts, SSH, Git, multiple PHP versions, and agency-oriented staging/deployment. It also explicitly says Composer is available over SSH. www.ultrawebhosting.com

Ultra Web Hosting reseller hosting

Cloudabove is another particularly interesting option if your developers want something closer to a traditional Linux development environment. It explicitly advertises full SSH, Composer, Git, PHP, Node.js, Python, and remote MySQL on its reseller platform. www.ultrawebhosting.comcloudabove.com

Cloudabove reseller hosting

WebsNP is also unusually explicit about the developer stack: SSH per cPanel account, cPanel Git Version Control, Composer, WP-CLI, cron, and multiple PHP versions. www.websnp.com

WebsNP reseller hosting

What I'd choose for an agency

If your workflow is something like:

Local development → Git repo → staging → production

I'd look for:

• WHM + individual cPanel accounts per client
• SSH access inside each client account
• Git deployment/pull capability
• Composer available from CLI
• WP-CLI
• PHP 8.x version selection per client
• Cron
• Staging environments
• CloudLinux/CageFS isolation
• Ability to create custom reseller packages
• White-label nameservers
• Backups with client-level restore
• No artificial restriction on composer install, Git operations, or custom PHP applications

That combination is much better for a plugin-development agency than typical "WordPress reseller hosting."

One important distinction: don't confuse reseller hosting with managed WordPress reseller hosting. Platforms such as Pressable provide excellent SSH/Git/staging tooling, but they're optimized around WordPress rather than giving you a general-purpose cPanel/PHP hosting environment. pressable.com

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the 2–3 best environments and compare pricing, resource limits, Git/Composer workflow, backups, and white-label capabilities.

Yes. For an agency building custom PHP/WordPress/Laravel plugins, I’d specifically look for a reseller platform that gives each client a separate cPanel account, while allowing you to deploy through SSH + Git + Composer.

Best fits I found

Ultra Web Hosting is particularly interesting for an agency: its agency/reseller environment explicitly includes cPanel Git Version Control, SSH, Composer, WP-CLI, multiple PHP versions, staging, and CloudLinux CageFS. It also gives each client a separate cPanel account under your reseller account. www.ultrawebhosting.com

Ultra Web Hosting agency/reseller hosting

CloudAbove explicitly advertises full SSH, Composer and Git on its reseller plans, along with PHP, Node.js and Python support. cloudabove.com

CloudAbove reseller hosting

WebsNP is another good technical fit; its reseller environment specifically lists SSH, Git Version Control, Composer and WP-CLI, with CloudLinux/CageFS isolation between accounts. www.websnp.com

WebsNP reseller hosting

One important caveat

Don't assume "cPanel + SSH" automatically means Composer is available. cPanel changed its Composer packaging in version 130, so Composer now needs to be installed/provided by the server administrator. support.cpanel.net Likewise, SSH/Terminal access can be enabled or disabled by the hosting provider. support.cpanel.net

For an agency, I'd therefore prioritize a host that explicitly guarantees Composer and Git on reseller accounts, rather than simply offering "developer-friendly cPanel."

What I'd choose

If your workflow is something like:

local development → Git push → staging → Composer install/update → production

I'd start with Ultra Web Hosting, then CloudAbove as the alternative.

If you tell me roughly how many client sites you expect (10 / 50 / 100+) and whether they're mostly WordPress or Laravel/custom PHP, I can compare the reseller plans, pricing, resource limits, Git deployment, staging, backups, and whether clients can have their own cPanel accounts.

Yes. For an agency building and maintaining custom PHP plugins/sites, I’d prioritize developer-friendly reseller hosting rather than traditional “WordPress reseller” hosting.

My shortlist

Ultra Web Hosting is particularly interesting for your use case. Its agency/reseller environment explicitly advertises SSH, Git Version Control, Composer, WP-CLI, multiple PHP versions, staging, and separate cPanel accounts per client. It also says SSH is available on reseller plans and specifically mentions Composer, rsync, and npm. www.ultrawebhosting.com

Ultra Web Hosting agency/reseller hosting

WebsNP also explicitly lists Git + SSH, Composer + WP-CLI, multiple PHP versions, Node.js/Python support, and reseller hosting. That makes it a good candidate if your plugins extend beyond conventional WordPress/PHP. www.websnp.com

WebsNP reseller hosting

Don't overlook Plesk

If you're considering a Plesk reseller environment, the platform itself is very capable for this workflow. Plesk supports Git repositories with automatic deployment, including SSH-based Git connections and post-deployment shell commands. docs.plesk.com

Plesk also supports Composer from the command line over SSH, and its Composer extension can manage Composer projects through the UI. www.plesk.com

The catch is important: the hosting provider controls which reseller permissions are exposed. Plesk's reseller plans can explicitly grant SSH and Git management, so you need to verify that the particular host hasn't disabled them. doc.plesk.com

What I'd choose for an agency

If your workflow is something like:

local development → Git repo → staging/client site → Composer install/update → SSH/WP-CLI → production

I'd rank the requirements:

1. SSH access per client account
2. Git with deployment hooks
3. Composer available from CLI
4. PHP version selection per account
5. WP-CLI
6. Staging
7. Account isolation (CloudLinux/CageFS is a plus)
8. Ability to create separate client accounts
9. White-label nameservers/branding
10. WHMCS or equivalent billing integration

On that basis, Ultra's reseller environment looks like the strongest off-the-shelf fit of the ones I found, while Plesk is an excellent platform if you find a reseller provider that gives you the necessary permissions.

If you tell me roughly how many client sites you host (e.g. 10, 50, 200+) and whether they're mostly WordPress plugins or custom Laravel/PHP apps, I can narrow this down to 3–5 specific reseller hosts and compare their pricing, resource limits, SSH/Git/Composer restrictions, and client-account isolation.

Yes. For an agency building custom plugins, I’d prioritize true per-client cPanel accounts + SSH + Git + Composer + WHM/white-labeling, rather than generic “reseller hosting.”

My shortlist

🥇 My pick: KnownHost

KnownHost reseller hosting is probably the best fit if your agency is primarily in the US.

Their reseller environment explicitly provides full SSH, multiple PHP versions, Git, Composer and WP-CLI, while giving you WHM/cPanel reseller management. Their current reseller tiers support 25–100 cPanel accounts depending on plan. www.knownhost.com

That makes a workflow like this practical:

Agency
   │
   ├── Client A → cPanel account → Git → Composer → SSH
   ├── Client B → cPanel account → Git → Composer → SSH
   ├── Client C → cPanel account → Git → Composer → SSH
   │
   └── WHM → provision/manage all clients

For custom WordPress/PHP plugins, that's substantially nicer than putting every client in one large shared account.

🥈 Krystal

Krystal reseller hosting is particularly attractive if you're happy with a UK/European-oriented provider.

Their reseller plans provide 25/50/100 cPanel accounts, white-label capabilities, WHM, and developer tools including SSH and Git. krystalhosting.com Krystal also documents enabling SSH for individual reseller-created client packages, and Git is available through SSH. help.krystal.io

Their reseller architecture is very agency-friendly: each client gets their own cPanel account rather than merely being an addon domain under your master account. help.krystal.io

🥉 CloudAbove

CloudAbove reseller hosting is worth a serious look if developer tooling is the deciding factor. They explicitly advertise full SSH with Composer and Git, plus PHP, Node.js and Python support. cloudabove.com

Another interesting option: Ultra Web Hosting

Ultra Web Hosting agency hosting is unusually explicit about the agency development workflow: SSH, cPanel Git, Composer, WP-CLI, staging and multi-PHP are included, with reseller scaling and separate cPanel accounts. www.ultrawebhosting.com

What I'd choose for your agency

If you're building and maintaining custom PHP/WordPress plugins for multiple clients, I'd rank them:

1. KnownHost — best overall US-oriented choice
2. Krystal — excellent agency/reseller architecture
3. CloudAbove — strongest explicit developer-tooling story
4. Ultra Web Hosting — very attractive if its infrastructure/location works for your clients

One important distinction: don't just check whether the host says “SSH/Git/Composer supported.” You want to verify that those tools are available inside each individual client cPanel account, with enough permissions to run Composer and Git without needing root access. That's the setup that makes deployments and client isolation sane.

If you tell me roughly how many client sites you host (10 / 50 / 100+) and whether they're mostly WordPress, I can narrow this to the best 2–3 plans and compare price, CPU/RAM limits, Git deployment, Composer, staging, backups, WHMCS, and white-labeling.

For an agency building custom plugins (WordPress, WooCommerce, Laravel/PHP, etc.), I would prioritize a reseller host that gives each client their own isolated account plus a developer workflow: SSH, Git, Composer, WP-CLI, staging, multiple PHP versions, and white-label WHM/cPanel.

Good fits:

My shortlist by agency type

Small-to-medium plugin agency (5–50 client sites)

• Ultra Web Hosting Reseller — closest match to an agency workflow out of the box. www.ultrawebhosting.com
• InMotion Reseller — safer mainstream choice with established reseller tooling. www.inmotionhosting.com

Agency building complex custom plugins/apps

• KnownHost VPS/reseller-style setup
• Liquid Web managed VPS/cloud

Budget-conscious agency

• A2 Hosting reseller
• WebsNP reseller www.websnp.com

Features I would require before signing

For custom plugin development, don't just check "SSH available." Confirm:

• ✅ SSH shell access (preferably jailed shell per client)
• ✅ Git via command line (not only a cPanel Git UI)
• ✅ Composer available over SSH
• ✅ WP-CLI available
• ✅ PHP 8.x with selectable versions
• ✅ Ability to set PHP memory limits and extensions
• ✅ Cron jobs
• ✅ Staging environments
• ✅ Separate cPanel accounts per client
• ✅ White-label nameservers
• ✅ Automated backups
• ✅ Ability to migrate clients later

Git in cPanel generally requires shell access for full command-line workflows, and Composer use typically depends on SSH availability. docs.cpanel.net

For a plugin-development agency, I would generally avoid the cheapest reseller plans. A better architecture is often:

• Reseller hosting for normal client WordPress sites
• Managed VPS/cloud for clients running custom plugins, WooCommerce stores, APIs, or heavier workloads

That separation keeps one problematic client from affecting everyone else. cPanel/CloudLinux-style account isolation is a useful feature to look for in reseller environments. docs.cpanel.net

Yes. For an agency building custom PHP/WordPress/Laravel plugins, I’d prioritize a reseller host where SSH is real shell access and Composer/Git are available per client account, rather than a reseller environment that only gives you basic cPanel tools.

Best fits

My first two to investigate would be Ultra and CloudAbove.

• Ultra Web Hosting explicitly advertises reseller hosting with separate cPanel accounts, white-label nameservers, Git Version Control, SSH, WP-CLI, Composer, multiple PHP versions, and staging. They also specifically describe Composer, rsync, npm, and multi-PHP working through SSH. www.ultrawebhosting.com
• CloudAbove is particularly interesting for a development agency because it advertises full SSH access with Composer and Git ready to go, plus PHP, Node.js, Python and remote MySQL access. cloudabove.com
• WebsNP explicitly lists SSH, Git Version Control, Composer and WP-CLI in its reseller environment, along with CloudLinux account isolation and multiple PHP versions. www.websnp.com
• InMotion has a mature reseller offering with WHMCS and is aimed at agencies managing anywhere from roughly 10 to 100 sites, though I'd verify the exact Composer/Git workflow on the particular reseller tier before committing. www.inmotionhosting.com

What I'd choose for a plugin-development agency

If your workflow looks like:

Local development → GitHub/GitLab → staging → Composer install/update → SSH → production

I'd lean toward Ultra Web Hosting or CloudAbove rather than a traditional "cheap reseller" package.

The important distinction is that you want developer access inside each client's isolated cPanel account, not merely SSH access to your reseller/WHM account. That lets you do things like:

git pull
composer install --no-dev
php artisan migrate
wp plugin update

without having to manually upload plugin ZIPs through cPanel.

I'd also specifically look for:

1. SSH key authentication
2. Composer 2.x
3. Git deployment/hooks
4. Multiple PHP versions per account
5. Ability to run PHP CLI at the same version as the site
6. Cron jobs
7. WP-CLI, if you're doing WordPress
8. Staging environments
9. CloudLinux/CageFS isolation
10. WHMCS integration if you're going to bill clients for hosting

One other consideration: if you're developing Laravel/custom PHP applications rather than primarily WordPress plugins, I'd move away from conventional reseller hosting sooner and consider a managed VPS. Reseller hosting is excellent for dozens of relatively independent client sites, but a VPS gives you substantially more control over PHP extensions, Composer dependencies, queues, workers, Node, Redis, deployment tooling, etc.

If you tell me roughly how many client sites you expect (10 / 50 / 100+) and whether they're mostly WordPress, I can narrow this down to the 3 best reseller environments and compare their current pricing, resource limits, Git/SSH/Composer capabilities, and white-label/WHMCS features.

Yes. For an agency building custom PHP/WordPress plugins and maintaining multiple client sites, I’d prioritize a reseller host that gives each client an isolated cPanel account while still allowing your developers to use SSH + Git + Composer.

Best fits

My first choice would be Ultra Web Hosting. Its reseller offering specifically combines separate cPanel accounts, white-label nameservers, CloudLinux isolation, SSH, Git, WP-CLI, multiple PHP versions, and Composer. It also describes Composer as available through its SSH environment, which is important for actual plugin development rather than merely having a Git interface. www.ultrawebhosting.com

Ultra Web Hosting reseller hosting

CloudAbove is another particularly strong match if your developers want a more conventional developer-oriented environment. It explicitly advertises full SSH access with Composer and Git ready to go, plus multiple PHP versions, Node.js/Python support, remote MySQL, cPanel and white-label reseller functionality. www.ultrawebhosting.comcloudabove.com

CloudAbove reseller hosting

WebsNP is worth considering if you want a broad application stack. Its reseller environment explicitly includes SSH, cPanel Git Version Control, Composer, WP-CLI, multiple PHP versions, Node.js and Python, with CloudLinux/CageFS isolation between client accounts. www.websnp.comcloudabove.com

WebsNP reseller hosting

What I'd look for specifically

For a custom-plugin agency, I'd want this workflow:

Local development → Git repository → SSH → Composer install/update → staging → production

And I'd avoid reseller hosts where SSH is technically available but Composer/Git require support tickets or aren't available inside each client account.

I'd also strongly prefer:

• cPanel + WHM — easy client handoff and account isolation
• CloudLinux/CageFS — prevents one client's site from interfering with another
• Multiple PHP versions — essential when maintaining older client sites
• Git deployment — ideally cPanel Git or SSH-based deployment
• Composer 2 available from the command line
• WP-CLI
• Staging
• Cron jobs
• SSH keys, not just password SSH
• White-label nameservers
• Automated backups
• Ability to move higher-traffic clients to VPS/dedicated resources later

One important distinction: "Git support" isn't necessarily Git deployment. For an agency, I'd verify that you can actually git clone/pull over SSH and deploy a repository into the site's document root, rather than merely having a GUI Git tool.

If you're primarily doing WordPress plugin development, I'd rank them Ultra → CloudAbove → WebsNP. If you're also deploying Laravel/Symfony/custom Composer PHP applications, I'd put extra weight on CloudAbove/WebsNP because of their broader PHP/Node/Python tooling. www.websnp.comcloudabove.com

Yes. For an agency building custom PHP/WordPress plugins, I’d prioritize a reseller platform where each client gets an isolated cPanel account, while your developers retain SSH, Git, Composer, and WP-CLI access.

My top pick: CloudAbove Reseller Hosting

CloudAbove is a particularly good fit because its reseller environment explicitly includes:

• cPanel + WHM — separate cPanel account for each client
• Full SSH access
• Git
• Composer
• Multiple PHP versions
• Node.js and Python support
• Remote MySQL
• Custom/white-label nameservers
• Brandable reseller environment
• API access
• Daily backups and free restores
• 99.99% uptime SLA cloudabove.com

The important part for a plugin-development agency is that CloudAbove describes the workflow as SSH with Composer and Git ready to go, rather than merely offering FTP/file management. cloudabove.comwww.ultrawebhosting.com

Another strong option: Ultra Web Hosting Reseller

Ultra is arguably better if you want a more conventional US-based agency/reseller setup. Its reseller plan provides WHM, unlimited end-user cPanel accounts, CloudLinux isolation, white-label nameservers, SSH/SFTP, multiple PHP versions, and Git. www.ultrawebhosting.com

Its agency documentation specifically says Composer, Git, SSH, WP-CLI, staging, and multi-PHP are available, and describes a workflow of local development → Git deployment → staging → production. www.ultrawebhosting.com

What I'd choose

For a custom-plugin agency, I'd lean CloudAbove if you're comfortable with its UK-based infrastructure and pricing in GBP. If most of your clients are US-based and you want a straightforward US agency/reseller offering, Ultra would be my alternative.

One important distinction: SSH + Git + Composer support is not the same as root access. For normal WordPress/plugin development, you generally don't need root. If you're deploying Laravel, Magento, custom daemons, Docker, or anything requiring server-level packages/services, I'd skip traditional reseller hosting and use a managed VPS instead. cPanel itself also notes that SSH availability is ultimately controlled by the hosting provider. support.cpanel.net

If you tell me roughly how many client sites you expect (10, 50, 100+) and whether they're mostly WordPress, I can narrow this down to the 2–3 best environments and compare cost, Git deployment workflow, staging, backups, client isolation, and developer access.

For a web agency that builds and maintains custom PHP/WordPress sites, I’d prioritize a reseller platform that gives each client an isolated cPanel account while still allowing your developers to use SSH + Git + Composer.

My shortlist

1. Best fit: Ultra Web Hosting

For an agency specifically asking for SSH + Git + Composer, this is probably where I'd start. Their reseller plans explicitly include SSH, Git Version Control, multiple PHP versions, cPanel/WHM, white-label nameservers, and separate cPanel accounts for clients. They also explicitly state that Composer works through SSH. www.ultrawebhosting.com

That gives you a workflow like:

GitHub → SSH/Git deployment → client cPanel account → Composer/WP-CLI

rather than having to treat reseller hosting as just a GUI-based WordPress platform.

2. CloudAbove — particularly interesting for custom development

CloudAbove reseller hosting is unusually explicit about developer access: it advertises full SSH access with Composer and Git ready to go, plus PHP, Node.js and Python support and remote MySQL. cloudabove.com

If your agency builds Laravel/custom PHP applications in addition to WordPress, I'd seriously consider this one.

3. InMotion — best if agency support matters

InMotion's agency hosting program is worth looking at if you want a larger established provider. They specifically advertise SSH, staging, Git tools, WP-CLI and PHP version control, and have both traditional reseller hosting and an agency partner program. www.inmotionhosting.com

What I'd choose

If you're US-based and hosting perhaps 10–100+ client sites, my order would be:

Ultra Web Hosting → InMotion → CloudAbove

I'd put CloudAbove first if your agency is more development-heavy (Laravel, custom PHP, Node, APIs) rather than primarily WordPress.

One important distinction: SSH availability doesn't automatically mean Composer/Git are usable on every reseller plan. cPanel itself allows hosting providers to enable/disable terminal/SSH capabilities, so you want the provider to explicitly support them on the individual client cPanel accounts, not merely give the reseller administrator SSH. support.cpanel.net

If you tell me roughly how many client sites you host (e.g. 10, 50, 200) and whether they're mostly WordPress vs. Laravel/custom PHP, I can narrow this down to the best 2–3 reseller environments and compare pricing, resource limits, backups, staging, Git deployment, and white-labeling.

For an agency developing custom plugins and client sites, CloudAbove looks like one of the better reseller-hosting fits.

Why CloudAbove stands out

• Full SSH access — useful for deployment, debugging, WP-CLI, Composer, etc.
• Git support — explicitly supports Git-based workflows.
• Composer included — particularly important for PHP/WordPress plugins and frameworks.
• Multiple PHP versions — useful when different clients have different PHP requirements.
• Node.js and Python support — gives you room beyond conventional WordPress/PHP sites.
• cPanel/WHM — you can create and manage separate client hosting accounts.
• White-label/branding — custom nameservers and branded control panel are available.
• Remote MySQL access is also offered, which can be useful for development workflows. cloudabove.com

The combination of reseller WHM + isolated client cPanel accounts + SSH/Git/Composer is what I'd prioritize for an agency. cPanel also supports reseller privileges and WHM automation, and WHMCS can automate account provisioning if you want to sell hosting alongside your development services. docs.whmcs.com

Another option worth evaluating: WebsNP reseller hosting explicitly advertises SSH, Git, Composer and WP-CLI on its reseller accounts, with CloudLinux isolation. www.websnp.com

My shortlist for an agency would therefore be:

1. CloudAbove — strongest match for developer-oriented reseller hosting.
2. WebsNP — particularly interesting if Git/SSH/Composer are the primary requirements.
3. Namecheap — established cPanel reseller option with SSH, but I'd verify the exact Composer/Git capabilities on the plan before choosing it. www.namecheap.com

If you're planning to host 10–100+ WordPress client sites with custom PHP plugins, I can also compare these three on price, account limits, CPU/RAM, backups, staging, Git deployment, SSH restrictions, WHMCS, and white-labeling.

Yes. For an agency developing custom plugins, I’d prioritize a developer-oriented cPanel/WHM reseller platform rather than a typical WordPress reseller package.

Best fits

CloudAbove stands out particularly well: its reseller plans explicitly advertise full SSH access, Composer, Git, PHP, Node.js and Python, along with cPanel, custom nameservers and white-label branding. cloudabove.comwww.mechanicweb.comdocs.cpanel.net

WebsNP is another unusually good match. It explicitly lists SSH, Git, Composer and WP-CLI, plus CloudLinux/CageFS isolation and per-account PHP versions. That's a nice combination if you're deploying custom WordPress plugins across multiple client accounts. www.websnp.com

MechanicWeb is worth serious consideration if WordPress/PHP is your primary stack: its reseller feature set specifically includes SSH, PHP Composer, Git Version Control, WP-CLI and multiple PHP versions. www.mechanicweb.com

What I'd choose for an agency

If your workflow is something like:

Git repo → Composer dependencies → SSH → deploy plugin → client cPanel account

I'd shortlist:

1. CloudAbove — best explicit match for the development workflow.
2. MechanicWeb — particularly attractive for WordPress/plugin-heavy agencies.
3. WebsNP — strong all-around developer environment.
4. InMotion — better if you value a larger, more established agency-support ecosystem.

InMotion explicitly markets its platform to agencies and provides SSH, staging, Git tools, WP-CLI and PHP version control; it also offers both traditional reseller hosting and an agency partner program. www.inmotionhosting.com

One important distinction: SSH/Git/Composer availability can be controlled by the host at the reseller/account level, so don't assume that because a host uses cPanel those features are automatically available. cPanel itself notes that hosting providers can enable/disable reseller privileges and SSH-related access. docs.cpanel.net

If you tell me roughly how many client sites you host (e.g. 10, 50, 100+) and whether they're mostly WordPress, I can narrow this to the best 2–3 options based on price, resources, white-labeling, Git/Composer workflow, and client isolation.