ChatGPT answers, unedited

If you mean an agency platform where you can manage many clients, each with their own landing pages/funnels, ad campaigns, leads, automations, and reporting, the big one is:

gohighlevel.com

It is specifically built around the multi-client agency model. You have one agency account, then create separate sub-accounts/locations for each client. From there you can manage:

• Landing pages, websites, and funnels
• Forms and lead capture
• CRM and sales pipelines
• Email/SMS campaigns and automations
• Google, Facebook/Instagram, and LinkedIn ads
• Call tracking and conversations
• Appointment booking
• Reputation/review management
• Client reporting
• White-labeled client dashboards

HighLevel's current Ad Manager, for example, lets agencies manage campaigns across Meta, Google, and LinkedIn from one place. HighLevel Support Portal GoHighLevel

It also supports agency-level access across multiple client accounts and separate permissions for individual clients/team members. HighLevel Support Portal

Other platforms worth knowing

For example, Unbounce specifically supports managing multiple clients from one account and lets agencies replicate successful landing-page assets across clients. Unbounce

If your mental model is:

“I want 30 clients → each gets their own landing pages, funnels, CRM, ad campaigns, automations, and dashboard → my agency manages everything from one login.”

Then HighLevel is probably the platform you're thinking of. It is essentially designed around that exact architecture. HighLevel Support Portal GoHighLevel

If you're asking because you're building something similar, I can also break down the architecture/features of a HighLevel-style agency platform and what you'd need to build an MVP.

If you mean “one platform where an agency can manage landing pages, funnels, leads, automations, and campaigns for multiple clients”, the standout is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're thinking of. It has an agency account with separate sub-accounts for each client, while letting the agency operate across them from the same system. It includes a funnel/landing-page builder, CRM, email/SMS campaigns, workflows, calendars, pipelines, and reporting. www.gohighlevel.com

A particularly useful agency feature is Snapshots: you can build a landing-page/funnel + workflows + pipelines once and deploy that setup to another client rather than rebuilding everything from scratch. help.gohighlevel.com

If your agency is primarily...

• Lead generation / paid ads / appointment setting → HighLevel
• Websites and high-end landing-page design → Webflow
• Enterprise inbound marketing / sophisticated reporting → HubSpot
• Pure landing-page testing and CRO → Unbounce

Webflow for Agencies is particularly strong if by “manage landing pages” you mean designing and maintaining dozens of client websites/pages, rather than managing the leads and campaigns themselves. webflow.com

If you tell me what kind of agency you're running (e.g. Google/Meta ads, lead gen, web design, SEO), I can tell you which platform I'd choose and why.

If you mean an agency platform where you can manage multiple clients, their landing pages/funnels, lead capture, and marketing campaigns from one dashboard, the big one is gohighlevel.com.

The main options

• gohighlevel.com — best all-in-one agency platform

• Separate client accounts/sub-accounts
• Landing pages, websites and funnels
• CRM and lead management
• Email/SMS automation
• Ad campaign management for Meta, Google and LinkedIn
• Client reporting
• White-labeling
• Reusable templates/workflows across clients

HighLevel specifically positions itself as an agency platform for managing client workflows, campaigns and pipelines in one place. HighLevel Support Portal GoHighLevel

• unbounce.com — best if landing pages are the core

• Multiple client accounts
• Landing pages and A/B testing
• Campaign reporting
• Cross-client page/template duplication
• Client permissions
• Integrations with CRMs and ad/marketing tools

It is more focused on landing-page/CRO management than being a complete agency CRM. Unbounce Unbounce

• instapage.com — strong enterprise landing-page option

• Designed around managing campaigns across multiple accounts
• Personalization and experimentation
• Collaboration and asset management
• More sophisticated landing-page optimization than an all-in-one CRM platform. Instapage
• Scalabl — an interesting newer option specifically aimed at agencies running many clients, domains and ad accounts. It combines landing pages, CRM, A/B testing and analytics into a multi-tenant platform. Scalabl

If you're building an agency

I'd generally think about it this way:

HighLevel → "I want to run the whole client relationship and marketing operation in one system."

Unbounce/Instapage → "I mainly want to build and optimize lots of landing pages and campaigns for clients."

If you're talking about the type of platform where an agency has Client A, Client B, Client C, etc. in a master dashboard and can clone landing pages/funnels/campaigns between them, HighLevel is probably the platform you're thinking of. GoHighLevel HighLevel Support Portal

If you tell me what you're trying to sell clients (lead-gen, paid ads, landing pages, SEO, etc.), I can narrow it down to the best 2–3 platforms and explain the pricing/model.

If you mean “one agency dashboard where I can manage landing pages, funnels, campaigns, leads, automations, and multiple clients”, the big one to look at is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're describing. It uses separate client sub-accounts, while letting the agency manage those accounts centrally. It combines landing pages/funnels with CRM pipelines, email/SMS, workflows, calendars, reputation management, and—in its newer Ad Manager—management of Meta, Google, and LinkedIn campaigns. help.gohighlevel.com

HighLevel

If you only care about building/managing lots of client landing pages, rather than running the whole marketing operation, Unbounce is arguably the cleaner choice. Its agency setup supports multiple clients, permissions, cross-account duplication, campaign reporting, and A/B testing. unbounce.com

Rule of thumb:

• 🏢 “Run my whole agency from one platform” → HighLevel
• 🎨 “Build and optimize tons of client landing pages” → Unbounce
• 📈 “Paid ads → landing pages → conversion optimization” → Instapage/Unbounce
• 🧠 “CRM + inbound marketing + enterprise clients” → HubSpot

If you're asking because you're building an agency yourself, I can also break down what agencies typically use in their actual stack (ads → landing page → CRM → automation → reporting) and which setup is cheapest/scales best.

If you mean an agency platform where you can manage multiple clients, their landing pages/funnels, campaigns, leads, automations, and reporting from one login, the big one to look at is HighLevel (GoHighLevel).

Best options

HighLevel is probably what you're describing. It gives an agency an overarching dashboard with separate sub-accounts for each client. You can build landing pages/funnels, capture leads, run email/SMS follow-up, manage pipelines, appointments, reporting, etc. HighLevel specifically says you can clone funnels and workflows across client accounts. www.gohighlevel.com

HighLevel agency CRM

Unbounce is a better choice if your agency's primary product is building and optimizing landing pages for paid-ad campaigns. It supports multiple clients/campaigns from one account and lets you duplicate successful assets between accounts, but you'll generally pair it with a CRM such as HubSpot. unbounce.com

Unbounce for agencies

The distinction I'd make

If you're thinking:

Client A → Google/Meta ads → landing page → form → CRM → automated SMS/email → appointment → reporting

and you want all of that under one agency account, HighLevel is the closest match.

If you're thinking:

We build 50+ landing pages for different clients and need excellent A/B testing/CRO

then Unbounce is probably stronger.

If you tell me what kind of agency you're running (lead gen, PPC, web design, SEO, etc.) and roughly how many clients, I can narrow it down to the 2–3 platforms I'd actually consider.

If you mean an agency platform where you can manage many clients, their landing pages/funnels, lead capture, automations, and ad campaigns from one login, the standout is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're thinking of. It uses separate sub-accounts for each client, while the agency has a centralized dashboard. You can build landing pages and funnels, manage leads, automate email/SMS follow-up, and manage advertising campaigns without jumping between a bunch of client logins. www.gohighlevel.com

It also now has an Ad Manager that lets agencies manage Meta/Facebook/Instagram, Google, and LinkedIn campaigns from within HighLevel. help.gohighlevel.com

If your use case is specifically...

• “I run lead-gen campaigns for 20–100 local businesses” → HighLevel
• “I build beautiful landing pages/websites for clients” → Webflow
• “I need enterprise CRM + marketing automation” → HubSpot
• “I mainly need one dashboard for reporting all clients' campaigns” → AgencyAnalytics

One particularly useful HighLevel feature for agencies is that you can build a funnel/workflow once and deploy it across multiple client accounts, which is why it's popular for productized lead-generation services. www.gohighlevel.com

If you're considering building your own agency platform/SaaS, I can also break down what HighLevel actually gives agencies, what it costs, and what the typical agency tech stack looks like in 2026.

If you mean “one platform where an agency can manage many clients, their landing pages/funnels, leads, automations, and ad campaigns”, the big one is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're looking for if you want the entire agency operation in one place. It uses separate client sub-accounts, while the agency gets a central dashboard. You can build landing pages/funnels, manage pipelines and leads, automate email/SMS follow-up, and manage ad campaigns. HighLevel also supports cloning funnels and workflows across clients. www.gohighlevel.com

HighLevel official site

Unbounce is better if your core business is building and optimizing landing pages for clients. It specifically supports multiple clients within one account, separate client environments, permissions, cross-account duplication, A/B testing, and campaign reporting. unbounce.com

Unbounce official site

There's also Scalabl, which is interesting if you're specifically building a lead-generation agency: it combines landing pages, CRM, A/B testing, analytics, ad-spend/conversion reporting, and isolated workspaces for each client. www.scalabl.io

My quick recommendation:

• Want an all-in-one agency operating system → HighLevel
• Primarily landing pages + conversion optimization → Unbounce
• Enterprise CRM/marketing ecosystem → HubSpot
• Lead-gen-focused, newer all-in-one → Scalabl

If you tell me what your agency actually does (e.g. Meta ads → landing page → lead → CRM → appointment), I can tell you which platform I'd pick and why.

If you mean an agency dashboard where you can manage landing pages, funnels, leads, automations, and ad campaigns for multiple clients, the big one is HighLevel (GoHighLevel).

HighLevel

The main options

HighLevel is probably what you're looking for if the goal is "one login → see all my clients → switch between client accounts → manage their funnels/pages, leads, automations, and marketing."

HighLevel uses sub-accounts for each client, and its agency-level interface lets you manage users and permissions across those accounts. It also now has an Ad Manager for managing campaigns across Meta, Google, and LinkedIn. help.gohighlevel.com

If you're primarily building landing pages for clients rather than running their entire marketing stack, Unbounce is arguably the cleaner choice. It specifically supports multiple clients, separate permissions, campaign organization, reporting, and duplicating high-performing pages across client accounts. unbounce.com

Unbounce

My quick recommendation:

• "I run a marketing agency and want everything under one roof" → HighLevel
• "I build/optimize landing pages for lots of clients" → Unbounce
• "I run sophisticated inbound/CRM marketing for larger clients" → HubSpot

If you tell me what your agency actually does (paid ads, lead gen, landing pages, SEO, etc.) and roughly how many clients, I can tell you which one I'd pick.

If you mean an agency platform where you can manage landing pages, funnels, campaigns, leads, automation, and multiple clients from one login, the big one is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're thinking of if you've seen agencies running dozens of client accounts under one platform. It has client subaccounts plus websites/funnels, CRM, calendars, workflows, messaging, and reporting in the same ecosystem. HighLevel explicitly positions itself around managing clients' leads, websites, funnels, calendars, and other services from one platform. www.gohighlevel.com

HighLevel official site

If your main thing is building lots of high-converting landing pages for different clients, rather than running the entire CRM/marketing operation, Unbounce may actually be the better fit. It lets agencies separate clients, permissions, domains and campaigns within one account and copy successful pages between clients. unbounce.com

Unbounce for agencies

My quick recommendation:

• Want an agency operating system → HighLevel
• Want a landing-page/campaign production system → Unbounce
• Want enterprise CRM + marketing → HubSpot
• Want white-label reporting/fulfillment → DashClicks

If you tell me what your agency actually does (e.g. Meta ads → landing page → lead → appointment), I can tell you which one I'd pick and why.

If you mean an agency platform where you can manage many clients, each with their own landing pages, funnels, campaigns, leads, automations, and reporting, the big one to look at is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're thinking of if you've seen agencies running dozens of clients from one dashboard. Its structure is essentially:

Agency account → Client sub-accounts → Landing pages/funnels + CRM + campaigns + automations + reporting

That makes it particularly useful if you're building and managing lead-generation systems for multiple businesses, rather than simply designing landing pages. www.gohighlevel.com

Unbounce is the better choice if your primary job is landing pages and conversion optimization. It explicitly supports multiple client accounts, permissions, campaign organization, cross-client duplication, A/B testing, and reporting. unbounce.com

If you tell me what kind of agency you're running (PPC, lead gen, web design, SEO, etc.) and roughly how many clients, I can tell you which platform I'd pick and why.

If you mean an agency platform where you can manage many clients, each with their own landing pages, funnels, leads, automations, and campaigns from one login, the big one is HighLevel (GoHighLevel).

The main options

HighLevel is probably what you're looking for if the goal is an agency "command center." It uses separate client sub-accounts, while the agency can manage users and access across those accounts. It also combines funnels/landing pages with CRM, workflows, conversations, pipelines, and campaign automation. help.gohighlevel.com

Unbounce is the better choice if your primary product is building and optimizing landing pages for lots of clients. It specifically supports multiple client environments, permissions, campaign management, A/B testing, and copying high-performing assets between clients. unbounce.com

My quick recommendation

• Lead-gen / ads agency → HighLevel
• Landing-page / CRO agency → Unbounce
• Full marketing + sales + enterprise clients → HubSpot
• Website-building agency → Duda

If you tell me what you're actually selling clients (e.g. Meta/Google ads + landing pages + lead follow-up), I can tell you which platform I'd pick and how I'd structure the client accounts.

If you mean “one login where an agency can manage landing pages, funnels, ads, leads, automations, and multiple clients”, the most common answer is HighLevel (GoHighLevel).

Best options

\*Webflow is excellent for building/managing the pages themselves, but isn't an all-in-one ad/campaign management system.

HighLevel is probably what you're looking for. It has separate client sub-accounts, landing pages/funnels, CRM, automations, and an Ad Manager that can manage Meta, Google, and LinkedIn campaigns from one dashboard. help.gohighlevel.com

HighLevel

If your actual goal is “I want to build 50–100 landing pages for different clients and run paid traffic to them from one agency dashboard,” I can narrow this down to the 3 platforms that are best specifically for that workflow.

Agencies usually use marketing automation platforms, landing page builders, and client management suites that let them run multiple brands, campaigns, and client accounts from one dashboard. The best fit depends on whether you’re a marketing agency, paid ads agency, funnel agency, or web design shop.

Here are the most common platforms:

For a typical lead-generation agency managing dozens of clients, the most common choice today is HighLevel because it combines:

• Client accounts/subaccounts
• Landing pages and funnels
• CRM pipelines
• Forms and lead capture
• Email/SMS automation
• Appointment booking
• Ad tracking
• Reputation management
• Reporting dashboards
• White-label client login

For a paid ads agency running Meta/Google campaigns and needing lots of landing page variants, agencies often pair:

• Unbounce or Instapage → landing pages
• HubSpot or HighLevel → CRM + automation
• Google/Meta ad platforms → traffic

For a web design agency, the stack is often:

• Webflow/WordPress → websites
• HubSpot/HighLevel → marketing operations
• Agency project management tools → client communication

If your goal is specifically “50+ clients, each with multiple landing pages and campaigns, managed from one login”, HighLevel is probably the category leader, while HubSpot is stronger for enterprise clients.

If you mean “one dashboard where an agency can manage landing pages, funnels, leads, automations, and campaigns for many different clients,” the most common answer is HighLevel (GoHighLevel).

The main options

HighLevel is particularly agency-oriented: you create a separate sub-account for each client, while managing them from your agency account. It combines landing pages/funnels, CRM, email/SMS campaigns, workflows, pipelines, calendars, and reporting. www.gohighlevel.com

If your agency is specifically running Meta/Google ads → landing page → lead capture → CRM → automated follow-up, I'd also look closely at Scalabl, which is designed around managing campaigns across multiple clients, domains, and ad accounts. www.scalabl.io

If you tell me what you're trying to build (e.g. 10 clients, each with 5–20 landing pages and their own Google/Meta campaigns), I can tell you which platform I'd choose and why.