ChatGPT answers, unedited

For a marketing agency managing multiple clients and running creator commission programs across channels (TikTok, Instagram, YouTube, affiliate links, Shopify/DTC, SaaS referrals, etc.), I’d prioritize platforms that have:

• Multi-client / multi-brand workspaces
• Separate commission rules per client
• Creator onboarding + tracking links/codes
• Automated payouts and tax/payment workflows
• Client-facing dashboards
• White labeling (if you sell this as a service)
• Cross-client reporting for your agency team

The “best” choice depends on whether you are closer to an influencer agency or an affiliate/performance marketing agency.

Best overall fits for an agency

1. Trackdesk — best for performance + affiliate-style creator commissions

Best fit if creators are driving measurable revenue (sales, leads, subscriptions).

Strengths:

• Multiple client programs from one platform
• Separate tracking, commissions, affiliates, and dashboards per client
• Supports CPA, CPL, CPS, recurring commissions, rev share, and tiered commissions
• Strong reporting workflows for client reporting Trackdesk

Good for:

• DTC brands
• SaaS clients
• Subscription products
• Agencies managing affiliate programs as a retainer service

Potential downside:

• Less focused on creator relationship management (briefs, content approvals, gifting workflows).

2. CreatorIQ — best enterprise creator marketing platform

Best if your clients are larger brands and you need full influencer operations.

Strengths:

• Creator discovery
• Relationship management
• Campaign management
• Reporting
• Enterprise workflows

Good for:

• Beauty, fashion, consumer brands
• Large creator networks
• Global campaigns

Potential downside:

• Usually heavier and more expensive than what a boutique agency needs.

3. GRIN — best for ecommerce creator programs

Good if most clients are Shopify/ecommerce brands.

Strengths:

• Creator CRM
• Product seeding
• Affiliate links/codes
• Influencer relationship workflows

Good for:

• Shopify brands
• Ambassador programs
• Repeat creator partnerships

Potential downside:

• More brand-operated than agency-operated.

4. Impact.com — best for sophisticated partner ecosystems

Good if creators are one piece of a broader partner channel.

Strengths:

• Influencers + affiliates + partnerships
• Enterprise tracking
• Payments
• Contracting workflows

Good for:

• Agencies with larger clients
• Complex attribution needs

Potential downside:

• More infrastructure than many creator programs require.

5. Agency-first affiliate platforms (worth evaluating)

If your agency wants to operate 20+ client programs under one roof, look at newer agency-focused tools:

• Rekomi focuses on multi-client affiliate program management, with separate client organizations, white-label options, and agency workflows. Rekomi
• HeldSway positions itself specifically around agencies running multiple client programs, including white-label client portals and portfolio reporting. HeldSway
• Referly is aimed at agencies wanting white-labeled affiliate software under their own brand. Referly

My shortlist by agency model

What I’d pick for a typical marketing agency

• 5–20 clients, performance-based creator commissions: Trackdesk or Rekomi
• UGC/influencer campaigns plus commissions: GRIN or CreatorIQ
• You want to package “creator commerce management” as a service: HeldSway/Referly-style agency platforms

A few questions would narrow this down a lot:

1. Are your clients mostly Shopify/ecommerce, SaaS, or mixed?
2. Do creators get paid mainly by affiliate sales commissions, flat campaign fees, or both?
3. Roughly how many client programs do you expect to run (5, 20, 100+)?

Yes. For a marketing agency managing creator commission programs across multiple clients, I’d narrow the field considerably. The best fit is probably impact.com, with GRIN and Aspire as the two alternatives worth evaluating.

My ranking

1. impact.com — my first choice for an agency

If your core requirement is "we need to run performance/commission programs for lots of different clients", I'd start here.

impact.com is designed around managing creators, affiliates, referrals, and other partners in one platform, rather than treating creator marketing as a standalone influencer workflow. impact.com impact.com

That's particularly valuable for an agency because you can have, for example:

• Client A → TikTok creators → 15% commission
• Client A → Instagram creators → 10% commission
• Client A → affiliates → 8% commission
• Client B → YouTube creators → $25 CPA
• Client B → publishers → revenue share
• Client C → creator + affiliate hybrid program

…and manage those relationships within the same partnership infrastructure.

It also has a dedicated agency partner program, including agency-specific tools, support, certification and revenue-sharing opportunities. impact.com says its platform is already used by 700+ active agency-managed brands. impact.com

impact.com

The downside: it's more of a partnership/affiliate platform than a pure creator-ops platform. If your clients care heavily about gifting, content approvals, briefs, creator relationships, etc., GRIN or Aspire may feel more natural.

2. GRIN — best if "creator" is the center of the program

GRIN is particularly compelling if you're mostly working with DTC/e-commerce clients and creators, rather than traditional affiliate partners.

It supports affiliate links, creator-level tracking, commission tiers, milestone rewards, automated payouts and campaign/product workflows. GRIN - Influencer Marketing Software

It also tracks performance by creator, campaign and channel, which is important if you're reporting back to multiple clients. GRIN - Influencer Marketing Software

I'd choose GRIN over impact.com if your agency's workflow looks more like:

Find creators → recruit → negotiate → send product → get content → track sales → pay commission → report ROI

rather than:

Recruit partners → establish commission structures → track transactions → optimize affiliate/creator revenue

grin.co

3. Aspire — excellent for creator/ambassador programs

Aspire is another strong option if the program is creator-first.

It specifically supports personalized commission structures, affiliate links, promo codes, flat/percentage/tiered commissions, campaign management, creator content, payments and reporting. Aspire

So if your clients are asking for "build us an ambassador program" rather than simply "build us an affiliate channel," Aspire deserves a serious look.

aspire.io

What I'd do in your shoes

I'd demo impact.com and GRIN side-by-side.

The deciding question is:

Are you primarily an agency operating performance partnerships, or an agency operating creator programs that happen to pay commissions?

If it's the former → impact.com.

If it's the latter → GRIN.

If you're somewhere in between → Aspire is worth adding to the evaluation.

One particularly important consideration for an agency is multi-client architecture. Don't just ask vendors whether they support "multiple brands." Ask them to demonstrate how your team would actually manage 20 clients, each with 50–500 creators, different commission rules, different ecommerce stores, separate reporting, separate payouts, and different users/permissions. That's where the platforms can differ dramatically.

Also, current pricing makes the economics worth scrutinizing: impact.com publicly lists tiers starting at $30/month, $500/month and $2,500/month, with enterprise pricing available, plus a published 2.5% charge on partner-driven sales. GRIN - Influencer Marketing Software

If you tell me roughly how many clients you manage, creator volume per client, whether they're mostly Shopify/DTC, and which channels (TikTok, Instagram, YouTube, Amazon, etc.), I can give you a much more definitive "buy X" recommendation and a feature/pricing comparison for your agency model.

For a marketing agency managing creator commission programs across multiple clients, I’d put impact.com at the top of the shortlist.

The key distinction is that you don’t just need an influencer-management tool—you need a multi-client performance/affiliate infrastructure that can handle creator recruitment, commission rules, attribution, contracts, payouts, reporting, and ideally multiple commerce channels.

My shortlist

1. impact.com — best overall for your use case

This is the one I'd investigate first.

impact.com now combines creator, affiliate, and referral programs in one platform, rather than treating influencer marketing and affiliate marketing as separate systems. It supports the entire workflow from discovery/recruitment through contracting, tracking, commission structures, and payments. impact.com impact.com

For an agency, that's particularly attractive because you can build programs around different clients while keeping the underlying operating model consistent.

It also supports dynamic payouts, different partner types, cross-device attribution, automated payments, and partner-level reporting. Impact

I'd choose it if: you're managing serious programs for multiple brands and want an infrastructure platform rather than simply a creator CRM.

impact.com

2. GRIN — best if you're primarily a creator agency

grin.co is particularly compelling if your programs are creator-led rather than traditional affiliate-led.

Its affiliate product lets you create links in bulk, track performance by creator/campaign/channel, set commission tiers and milestone rewards, and automate payouts. GRIN - Influencer Marketing Software

It also has a large transaction-verified creator database, which is useful if your agency is responsible for finding and activating creators, not just operating the commission infrastructure. GRIN

I'd choose it if: creator discovery, relationships, gifting/content workflows, and affiliate commissions all need to live together.

3. Captiv8 — worth looking at for enterprise creator operations

captiv8.io takes a broader influencer-marketing approach, combining discovery, workflow, measurement and creator commerce. Its commerce capabilities include affiliate, TikTok Shop, branded storefronts and attribution. Captiv8

I'd choose it if: your agency does substantial influencer campaign management in addition to commission programs.

4. Levanta — particularly interesting if Amazon is important

levanta.io is unusually interesting if your clients sell across Amazon, Shopify and Walmart. Its current platform explicitly lets brands run creator/affiliate programs across those three channels, with commissions, product seeding, flat-fee partnerships, attribution and payments. Levanta Levanta

I'd choose it if: marketplace commerce—especially Amazon—is a major part of your clients' business.

5. Refersion — good simpler/cheaper affiliate infrastructure

refersion.com is more traditional affiliate software. It offers flexible commission structures, SKU/product-level tracking, multi-store management, integrations and automated payouts. Refersion

I'd consider it when the requirement is essentially "give our creators affiliate links/codes, track sales and pay commissions", rather than full creator-program management.

What I'd do in your position

I'd narrow the evaluation to impact.com vs. GRIN vs. Levanta.

The deciding question is really your clients' commerce mix:

• Mostly DTC / Shopify + sophisticated creator programs → GRIN
• Creator + affiliate + referral + multiple channels → impact.com
• Amazon + Shopify + Walmart → Levanta
• Large enterprise influencer campaigns + commerce → Captiv8
• Basic affiliate infrastructure → Refersion

For an agency specifically, I'd lean impact.com because the conceptual model is closest to what you're describing: one performance-partnership layer that your agency can operate across many brands, rather than a tool that's primarily designed around one brand's influencer team. impact.com also explicitly has an agency partner program. impact.com

If you tell me (1) how many clients/brands you manage, (2) Shopify/Amazon/TikTok Shop/etc., (3) whether creators get % commission, flat fees, or both, and (4) roughly how many creators per client, I can narrow this down to the 2–3 platforms I'd actually demo, including the important agency-specific differences (multi-brand management, white-labeling, reporting, pricing, payouts, attribution, and API/integrations).

This is the one I'd investigate first.

impact.com now combines creator, affiliate, and referral programs in one platform, rather than treating influencer marketing and affiliate marketing as separate systems. It supports the entire workflow from discovery/recruitment through contracting, tracking, commission structures, and payments. impact.com impact.com

For an agency, that's particularly attractive because you can build programs around different clients while keeping the underlying operating model consistent.

It also supports dynamic payouts, different partner types, cross-device attribution, automated payments, and partner-level reporting. Impact

I'd choose it if: you're managing serious programs for multiple brands and want an infrastructure platform rather than simply a creator CRM.

impact.com

2. GRIN — best if you're primarily a creator agency

grin.co is particularly compelling if your programs are creator-led rather than traditional affiliate-led.

Its affiliate product lets you create links in bulk, track performance by creator/campaign/channel, set commission tiers and milestone rewards, and automate payouts. GRIN - Influencer Marketing Software

It also has a large transaction-verified creator database, which is useful if your agency is responsible for finding and activating creators, not just operating the commission infrastructure. GRIN

I'd choose it if: creator discovery, relationships, gifting/content workflows, and affiliate commissions all need to live together.

3. Captiv8 — worth looking at for enterprise creator operations

captiv8.io takes a broader influencer-marketing approach, combining discovery, workflow, measurement and creator commerce. Its commerce capabilities include affiliate, TikTok Shop, branded storefronts and attribution. Captiv8

I'd choose it if: your agency does substantial influencer campaign management in addition to commission programs.

4. Levanta — particularly interesting if Amazon is important

levanta.io is unusually interesting if your clients sell across Amazon, Shopify and Walmart. Its current platform explicitly lets brands run creator/affiliate programs across those three channels, with commissions, product seeding, flat-fee partnerships, attribution and payments. Levanta Levanta

I'd choose it if: marketplace commerce—especially Amazon—is a major part of your clients' business.

5. Refersion — good simpler/cheaper affiliate infrastructure

refersion.com is more traditional affiliate software. It offers flexible commission structures, SKU/product-level tracking, multi-store management, integrations and automated payouts. refersion.com

I'd consider it when the requirement is essentially "give our creators affiliate links/codes, track sales and pay commissions", rather than full creator-program management.

What I'd do in your position

I'd narrow the evaluation to impact.com vs. GRIN vs. Levanta.

The deciding question is really your clients' commerce mix:

Yes. For a marketing agency managing creator commission programs for multiple clients, I’d narrow the field to impact.com, GRIN, and Levanta—but the best choice depends heavily on which commerce channels you need to support.

My ranking

🥇 My pick: impact.com

For an agency, impact.com is probably the strongest platform to evaluate first.

It has evolved beyond traditional affiliate tracking into a unified platform for creators, affiliates, ambassadors and customer referrals, with customizable commission structures, partner recruitment, tracking, reporting and payouts. impact.com

The important part for you is that it is designed around performance partnerships rather than just influencer campaigns. You can have different commission rules, partner types and reporting structures rather than forcing every client into the same creator workflow. impact.com also explicitly has an agency partner ecosystem. get.impact.com

I'd choose it if your agency is managing:

• Multiple brands/clients
• Creators + traditional affiliates
• Different commission structures by client/campaign
• Web/e-commerce conversions
• TikTok/Instagram/YouTube creators
• Larger programs where attribution and reporting matter
• Clients who will eventually want more sophisticated partnership marketing

Explore impact.com

🥈 GRIN — better if you're primarily a creator/influencer agency

GRIN is arguably the nicer creator-management experience. It handles creator discovery, relationships, campaigns, content, affiliate links, tracking and payouts in one system. grin.co

Importantly for an agency, GRIN explicitly supports multiple brands and campaigns within one platform, and its affiliate functionality can create links in bulk and track performance by creator, campaign and channel. grin.co

I'd lean GRIN over impact.com if your actual business looks like:

"We manage 20 DTC brands and our core job is recruiting/managing creators, sending products, collecting content, and turning those creators into commission-based affiliates."

I'd lean impact.com if it looks more like:

"We run the clients' entire performance partnership infrastructure and creators are one channel within it."

Explore GRIN

🥉 Levanta — very interesting if Amazon is important

Levanta deserves serious consideration if your clients sell through Amazon, Shopify and Walmart. Its 2026 platform expansion specifically brought those three commerce channels together for creator/affiliate programs. levanta.io

It also has an explicit agency partner program, including tools/support for agencies managing affiliate and creator programs for clients. levanta.io

So if your agency's world is heavily:

Amazon + TikTok creators + Shopify + Walmart

I'd put Levanta much higher on the shortlist.

Explore Levanta

The big distinction I'd make

Don't evaluate these platforms primarily on "influencer management."

For an agency, I'd evaluate them on multi-tenant performance infrastructure:

1. Can we isolate each client completely?
2. Can our agency team manage all clients from one login?
3. Can each client have different commission rules?
4. Can a creator belong to multiple client programs without creating duplicate accounts?
5. Can we track Shopify + Amazon + other channels?
6. Can we automate creator onboarding?
7. Can we automate commission calculations and payouts?
8. Can clients have their own dashboards/reporting?
9. Can we export/API all conversion and commission data?
10. Can we attribute sales across multiple creator channels?
11. Can we handle promo codes as well as affiliate links?
12. Can we charge clients a management fee while the platform handles creator payouts?

That last group is where impact.com becomes particularly compelling for an agency.

What I'd do in your position

I'd run a bake-off between impact.com and GRIN, and add Levanta if Amazon/Walmart is meaningful to your client base.

If you tell me (1) how many clients you manage, (2) Shopify/Amazon/TikTok Shop/etc., (3) approximate number of creators, and (4) whether you need the platform to actually pay creators, I can give you a much more definitive recommendation—including pricing, multi-client architecture, integrations, attribution, payouts, and the major gotchas for an agency.

Yes. For a marketing agency managing creator commission/affiliate programs for multiple clients, I’d narrow the field considerably.

My shortlist

🥇 I'd start with impact.com

The key distinction is that you aren't just looking for an influencer-management tool. You're looking for performance-partnership infrastructure that your agency can operate across multiple brands and channels.

impact.com now combines creators, affiliates and referrals in the same platform, with tracking, partner management and payouts unified. It explicitly has an agency offering as well. impact.comhelp.impact.com

That makes it particularly interesting if your clients might have programs involving:

• TikTok / Instagram creators
• YouTube creators
• Traditional affiliates
• Coupon/deal partners
• Ambassadors
• Customer referral programs
• Multiple commission structures
• Link + promo-code attribution
• Different programs for different clients

Its creator product is now integrated directly into the Performance Platform, so you don't have to treat influencer marketing and affiliate marketing as separate systems. impact.com

See impact.com's agency/platform offering

🥈 GRIN if your agency is primarily creator-led

GRIN is arguably the better creator operating system. It handles creator discovery, recruitment, campaign management, affiliate links, commissions, tracking and payouts. GRIN says its affiliate functionality tracks performance by creator, campaign and channel and supports commission tiers and automated payouts. grin.co

It's especially compelling if your clients are DTC brands and the program looks like:

recruit creators → send product → creator posts → creator gets unique link/code → sale → commission → payout

Rather than:

manage a broad ecosystem of affiliates, publishers, creators, referrals and partnerships.

GRIN has also been pushing heavily into automated/AI-operated creator-program management, which could be useful for an agency trying to reduce account-management labor. grin.co

🥉 Modash if ease of use matters

Modash is worth looking at if your clients are predominantly Shopify/DTC. Its creator-affiliate tooling focuses specifically on the combination of creator recruitment, commission structures, attribution, discount codes, creator portals and payouts—rather than treating affiliate tracking as just another link-management problem. www.modash.io

The important agency-specific question

I'd actually evaluate these platforms on agency infrastructure, not just features.

You want to know whether you can have:

Agency
→ Client A
→ Client B
→ Client C
→ Client D

with each client having isolated:

• creators
• commission rules
• links/codes
• campaigns
• attribution
• payouts
• reporting
• client access

while your agency retains one operational layer across all of them.

That's where I'd put impact.com ahead of GRIN/Modash if you're building this as a serious agency service. impact.com is designed around broader partnership management and explicitly supports agencies. impact.comhelp.impact.com

My recommendation by agency type

If you have 10+ clients and want to build a scalable managed service:
→ impact.com

If you're a creator/influencer agency and commissions are an extension of creator campaigns:
→ GRIN

If most clients are Shopify brands and you want something easier/lower-friction:
→ Modash

If you mostly need "give creators links/codes and pay them commission":
→ consider a lighter affiliate-first product rather than a full creator-management suite.

If you tell me roughly how many clients you manage, Shopify vs non-Shopify, which channels (TikTok/IG/YouTube/etc.), and whether you need the agency to invoice/collect money from clients, I can give you a much more specific recommendation—including which platform I'd actually buy and why, plus a feature/pricing comparison.

For a marketing agency managing creator commission programs across multiple clients and channels, I’d shortlist these:

My pick: impact.com

If your model is "we run performance-based creator programs as a service for multiple brands," I'd start with impact.com.

The big advantage is that it isn't just an influencer CRM. Its Creator product is integrated with its affiliate/performance platform, so you can have creators, affiliates, referral partners, links/codes, attribution, commissions and payouts in the same system. It specifically supports agencies and says it has 700+ active agency-managed brands. impact.com

That matters if, for example, a creator is:

• posting on TikTok → commission on tracked sales
• posting Instagram Stories → unique link/code
• publishing YouTube content → revenue share
• participating in a traditional affiliate program → same partner record
• getting a hybrid flat fee + % commission → same workflow

You can manage the creator relationship and performance side together rather than bolting an influencer platform onto an affiliate tracker.

When I'd choose something else

GRIN — choose this if the heart of the operation is creator marketing, with affiliate commissions as an important component. GRIN has a large creator network, creator discovery, outreach, campaign management, affiliate links, bulk link creation and payouts. grin.co

Trackdesk — interesting if your agency is more performance/affiliate marketing than influencer marketing. Its agency product is explicitly designed around isolated client workspaces, client-specific commissions, dashboards, reporting and white-label partner portals. impact.comgrin.cotrackdesk.com

HeldSway — particularly interesting if you want to turn this into a white-labeled service that your agency sells to clients. It supports separate programs per client, client-specific branding, role-based permissions, centralized agency billing and a portfolio-wide dashboard. heldsway.com

Commission Factory — worth looking at if you're operating substantial traditional affiliate programs across multiple markets. Its agency offering is explicitly multi-client/multi-market, with tracking, reporting, recruitment and automated payouts. www.commissionfactory.com

The key distinction

I'd think about the decision this way:

Creator-first agency → GRIN
Creator + affiliate + referral performance → impact.com
Affiliate/performance agency → Trackdesk or Commission Factory
White-label "affiliate program as a service" → HeldSway

If you tell me roughly how many clients you manage, how many creators per client, Shopify vs other ecommerce platforms, and whether you need TikTok/Instagram/YouTube attribution, I can narrow this to the 2–3 platforms I'd actually demo and compare their pricing/limitations.

Yes. For a marketing agency managing creator commission programs for multiple clients, I’d evaluate this differently from a normal influencer-marketing platform. The key is multi-client workspaces + commission attribution + creator payouts + cross-channel reporting, rather than just creator discovery.

My shortlist

🥇 My first look: Growi

Growi

Growi is particularly interesting for your use case because it is designed around creator commerce rather than just influencer campaigns. It supports TikTok Shop, Shopify, Amazon, Meta and TikTok, with creator-level attribution, commissions, retainers, bonuses and payouts. www.growi.io

That means you could theoretically have:

Client A
→ 40 creators
→ 15% commission
→ TikTok Shop + Shopify
→ monthly bonuses

Client B
→ 100 creators
→ different commission tiers
→ Amazon + Shopify
→ performance bonuses

…and manage the programs from the same operating layer.

The cross-channel piece is particularly compelling: Growi says it can tie creator content and sales across TikTok, Instagram, Facebook, YouTube, Shopify, Amazon and paid channels back to individual creators. www.growi.io

🥈 GRIN — safest established choice

GRIN

If you're looking for something more established and don't mind a potentially heavier/enterprise-oriented platform, GRIN would be my second choice.

It combines creator management, affiliate programs, tracking, commission tiers, automated payouts, product fulfillment and creator relationship management. grin.co

Its affiliate system can track performance by creator, campaign and channel, which is exactly the reporting structure an agency needs. grin.coeightx.co

The downside is economics: third-party estimates put typical GRIN contracts in the ~$30k–$50k/year range for mid-market DTC brands, although actual pricing varies considerably by contract. eightx.co

🥇 Wildcard: Plouris

Plouris

This one is very specifically interesting for an agency.

Plouris describes itself as an agency-owned creator performance platform: your agency retains the client/creator relationships while the software provides the infrastructure underneath. It supports UGC, TikTok Shop, affiliate, ambassador and creator-commerce programs, including campaign management, performance and payout workflows. www.plouris.com

If your business model is:

"We sell creator affiliate programs to brands as a managed service."

rather than:

"We're a brand using software to manage our own creators."

I'd put Plouris on the demo list.

Social Cat — worth considering for easier deployment

Social Cat for Agencies

Social Cat explicitly supports multiple client brands under one agency account, with gifted, paid and affiliate campaigns, creator discovery and reporting. thesocialcat.com

I'd consider it if you want something relatively straightforward and don't need the sophisticated attribution/commerce infrastructure of Growi or GRIN.

Where Impact.com fits

impact.com

I'd choose Impact when the programs are becoming more like full affiliate/partnership programs—creators + affiliates + publishers + other partners—with sophisticated attribution and partner economics.

For a pure creator-commerce agency, though, I think Growi/GRIN/Plouris are more naturally aligned.

One important distinction

If by "across channels" you mean:

Instagram + TikTok + YouTube + Shopify + Amazon + TikTok Shop,
then I'd prioritize Growi or Plouris.

If you mean:

creators + traditional affiliates + publishers + referral partners + coupon sites,
then I'd lean Impact.com.

If you mean:

large-scale influencer/creator management with sophisticated CRM, content, seeding and affiliate functionality,
then GRIN is probably the safer bet.

If you want, I can also do a serious agency-focused comparison of Growi vs GRIN vs Impact vs Plouris, including multi-client architecture, white-labeling, commission rules, attribution, Shopify/TikTok Shop/Amazon integrations, creator payments, reporting, API capabilities, and estimated pricing.

For a marketing agency managing multiple clients, I’d prioritize platforms that support multi-brand workspaces, creator onboarding, commission tracking, attribution, payouts, reporting, and client visibility. The “best” choice depends on whether you’re mainly running affiliate/commission programs, influencer campaigns, or UGC + performance creative.

Here’s how I’d shortlist them:

My recommendation by agency model

1. You manage Shopify/ecommerce clients and creators earn commissions on sales

• Start with impact.com or LoudCrowd.
• They’re closer to a true affiliate infrastructure: tracking links/codes, conversions, commission rules, payouts. loudcrowd.comimpact.com

2. You’re an influencer marketing agency with 10–100+ brand clients

• Look hardest at Influentials or Plouris.
• The important features are not creator discovery; they’re:
  • separate client workspaces
  • client approvals
  • white-label reporting
  • creator contracts
  • consolidated payouts
  • agency-owned creator relationships www.plouris.comwww.influentials.comloudcrowd.com

3. You run TikTok Shop / UGC / paid social creative programs

• I’d lean Plouris or LoudCrowd because the workflow is closer to:

creator → content → performance → commission. www.plouris.comwww.influentials.comloudcrowd.com

Features I’d insist on before buying

For an agency, I’d avoid tools that only manage campaigns for one brand. Make sure it has:

• ✅ Multi-client dashboard
• ✅ Client-level permissions
• ✅ Creator CRM/roster reuse across clients
• ✅ Commission rules (flat fee + % revenue + bonuses)
• ✅ Discount codes + affiliate links
• ✅ Automated creator payouts
• ✅ Exportable client reports
• ✅ API/webhooks if you connect Shopify, WooCommerce, TikTok Shop, etc.

If I were choosing a stack for a mid-size creator marketing agency, my shortlist would be:

1. impact.com — if revenue attribution is the core product
2. Plouris — if your agency wants a branded creator-performance operating system
3. Influentials — if you need a straightforward multi-client influencer operations hub
4. LoudCrowd — if most clients are DTC/ecommerce

A few details would change the answer significantly: how many clients you manage, whether commissions are based on sales (affiliate) or content delivery (creator fees), and which channels matter most (TikTok Shop, Instagram, YouTube, Amazon, Shopify, etc.).

If you’re an agency managing creator commission programs for multiple clients, I’d shortlist these three—but they solve slightly different problems:

My recommendation

1. impact.com — best overall if “commission” is the core of the business.

It has a particularly strong fit if your creators can earn based on sales, conversions, referrals, or other performance events, because it brings creator, affiliate, and referral programs into the same partnership platform. impact.com

I'd choose this if you expect programs to span things like:

• Instagram/TikTok/YouTube creators
• Affiliate links and promo codes
• Ecommerce sales
• Different commission rates by creator/tier
• Multiple clients/brands
• More sophisticated attribution and reporting

2. Trackdesk — best if you're essentially an affiliate agency with creators as the affiliates.

Its agency product specifically supports isolated client workspaces, separate commission/affiliate data, client dashboards and branded reporting, and it advertises 900+ integrations. trackdesk.com

This is probably the most interesting option if your workflow is:

Client → offer → creator/affiliate → tracking link/code → conversion → commission → payout → client report

rather than a traditional influencer-campaign workflow.

3. Plouris — most interesting if you want to build a creator-performance offering under your agency's brand.

This one is newer, but its positioning is unusually close to what you described: agency-owned infrastructure for UGC, paid social, TikTok Shop, affiliate and creator-commerce programs, with client workspaces, creator portals, performance data and payout rules. www.plouris.com

The big advantage is that your agency owns the client and creator relationship and can present the system as your own branded platform.

What I would not make my first choice

I wouldn't start with a conventional influencer-management platform like GRIN or Creator.co if the primary requirement is commission attribution across channels. They're stronger when the center of gravity is creator discovery, campaigns, content, relationships and influencer management. GRIN, for example, is particularly comprehensive as a creator CRM/management system. www.conbersa.ai

Creator.co does have a dedicated multi-brand agency offering, so it's worth considering if your programs are more campaign/influencer-oriented than affiliate-oriented. www.creator.co

If I were choosing for an agency

I'd rank them:

impact.com → Trackdesk → Plouris

But the winner changes depending on your exact model.

If you tell me (1) how many clients, (2) roughly how many creators per client, (3) which channels—TikTok, Instagram, YouTube, Shopify, Amazon, etc.—and (4) whether commissions are based on sales, clicks, leads, or GMV, I can narrow this down to the best 2–3 platforms and tell you exactly why, including pricing/implementation considerations.

For a marketing agency managing multiple client brands, I’d shortlist GRIN, impact.com, and Modash—but my pick depends on whether you’re primarily selling creator marketing or affiliate/performance marketing to clients.

My ranking

🥇 I'd start with GRIN

GRIN is probably the closest match to what you're describing. It combines creator recruitment, relationship management, campaigns, affiliate links/codes, commission tiers, performance reporting, and creator payments rather than making you bolt an affiliate platform onto an influencer platform. grin.co

It also explicitly tracks performance by creator, campaign, and channel, and supports automated payouts and commission incentives. grin.co

For an agency, that's valuable because you can essentially make the workflow:

Client → creator roster → offers/commission structure → content → sales attribution → commissions → reporting

rather than maintaining separate systems for influencer management and affiliate tracking.

GRIN's current pricing also has tiers designed around running multiple programs, with its higher plans supporting up to 250 or 500 active creators in the classic workspace. grin.co

🥈 impact.com if "across channels" is the priority

I'd look harder at impact.com if by across channels you mean you're managing creators + traditional affiliates + referral partners + other partnership types for each client.

impact.com positions itself as a unified platform for creators, affiliates, customer referrals, and communities, rather than purely a creator-management system. impact.com

So:

• GRIN → creator-first agency
• impact.com → partnership/affiliate-first agency

🥉 Modash is particularly interesting for ecommerce clients

Modash is worth a serious demo if most of your clients are Shopify/DTC brands. It combines creator discovery, CRM, campaign management, affiliate tracking and payouts. www.modash.io

Its affiliate system supports unique links + discount codes, commission tiers, attribution, creator dashboards and payouts. help.modash.io

One notable limitation: its affiliate program currently requires a connected Shopify store and Modash Payments, so I'd be less inclined to make it your agency-wide standard if your clients use lots of different ecommerce stacks. help.modash.io

One important distinction

If what you really want is "we operate creator affiliate programs as a service for 20–100 brands", I'd evaluate these platforms differently than a single brand would.

I'd specifically test:

1. True multi-client / multi-brand management
2. Separate client dashboards and reporting
3. White-label/client-facing reporting
4. Multiple Shopify/store connections
5. Commission rules by product, creator, campaign, etc.
6. TikTok + Instagram + YouTube attribution
7. Discount-code attribution alongside links
8. Automated creator payouts and tax forms
9. Bulk creator onboarding
10. API/webhooks for pushing data into your agency's BI/reporting stack
11. Whether your team can manage all clients from one agency account
12. Whether clients can have restricted access to only their own data

That last group is where the decision can change dramatically. A platform that's excellent for one DTC brand isn't necessarily good agency infrastructure.

If you tell me roughly how many clients you manage, average creators/client, ecommerce platforms (Shopify/WooCommerce/etc.), and whether you need white-label client reporting, I can narrow this to the best 2–3 options and compare their agency/multi-client capabilities and pricing.

For a marketing agency managing multiple clients, I’d put impact.com at the top of the list—especially if by “creator commission programs” you mean performance-based creator/affiliate programs where creators earn commissions on sales across multiple channels.

My shortlist

1. impact.com — my pick for your agency

Impact has moved toward a unified platform covering creators + affiliates + customer referrals, rather than treating creator marketing as a separate influencer tool. It supports tracking, contracts, commission structures, payouts, campaign management, discovery, and reporting. impact.comhelp.impact.com

The important part for an agency: Impact specifically has an agency solution designed around managing a portfolio of client programs, with portfolio-level visibility and the ability to manage multiple customer relationships/programs from one platform. help.impact.com

I'd choose it if you're doing things like:

• Client A: TikTok creators → Shopify sales → 15% commission
• Client B: Instagram creators → DTC site → CPA commission
• Client C: YouTube creators → Amazon → commission
• Client D: affiliates + creators + referral partners
• Different commission rates, offers, contracts and reporting per client
• Agency wants centralized operations but client-specific reporting

It also handles tracking across properties/devices and supports flexible/dynamic payout structures. impact.com

2. GRIN — better if creator relationships are the center

GRIN is particularly compelling if your programs are more creator/influencer-led than traditional affiliate-led. Its affiliate product handles bulk link creation, tracking, commissions and payouts, with performance reporting by creator, campaign and channel. launch.grin.co

I'd lean GRIN if your agency is doing a lot of:

creator recruitment → product seeding → content → affiliate links → commissions → ongoing creator relationships.

It's less of a pure partnership/affiliate infrastructure play than Impact and more creator-centric.

3. Levanta — interesting if Amazon is important

Levanta is worth looking at if your clients sell heavily through Amazon, Walmart and Shopify. In 2026 it expanded its creator affiliate infrastructure to unify product discovery, link generation, commission tracking and payments across those three channels. levanta.io

For an agency with lots of Amazon creator programs, I'd put it much higher on the list.

What I'd actually do in your situation

Start with Impact and GRIN.

If you're a true multi-client agency, I'd probably choose:

Impact = infrastructure / attribution / commissions / multi-client operations
GRIN = creator CRM / recruitment / relationship management / content

If you want one system rather than stitching tools together, Impact has the stronger argument because creators and conventional affiliates can live in the same partnership infrastructure. impact.com

One important caveat: “across channels” can mean two very different things—tracking creators across social channels (TikTok, Instagram, YouTube, etc.) versus tracking sales channels (Shopify, Amazon, Walmart, retail, apps, etc.). Impact is particularly strong when you mean the latter + the former.

If you tell me (1) how many clients you manage, (2) roughly how many creators per client, and (3) which sales channels—Shopify/Amazon/Walmart/etc.—I can narrow this down to the best 2–3 and compare **pricing, agency/multi-brand architecture, creator onboarding, commission rules, attribution, payouts, and white-label/client reporting.

Yes. For a marketing agency managing multiple clients, I’d narrow the field considerably. You don’t just need creator software—you need multi-client program management + affiliate/commission infrastructure + cross-channel attribution + payouts/reporting.

My shortlist

🥇 I'd start with impact.com

impact.com

The reason is that your requirement sounds more like "run performance partnerships for lots of brands" than simply "manage influencer campaigns."

impact.com now brings creator, affiliate, and referral programs into one platform, with unified tracking. It specifically supports agencies and says agencies can build campaigns across brands. impact.com

That matters if, for example, one client's program looks like:

TikTok creator → unique link → Shopify sale → 15% commission

while another is:

YouTube creator → promo code → sale → $20 commission

and another is:

Instagram creator → affiliate link → tiered commission → bonus at $10k revenue

You want all of that living in the same underlying partnership system rather than stitching together an influencer platform + affiliate software + spreadsheets.

impact.com also supports creator discovery, campaign management, performance tracking and payments, and says its creator capabilities are now integrated into the broader performance platform. impact.comimpact.com

🥈 Upfluence is probably the one I'd demo alongside it

Upfluence

This is particularly interesting for an agency. Upfluence explicitly supports agencies running separate programs, workspaces and reporting for each brand from one account. It also supports custom commission tiers, affiliate links/codes, flat-fee + commission hybrid deals, and creator payouts. www.upfluence.com

Its positioning is more creator-marketing-centric than impact.com. So if your agency is primarily:

Find creators → negotiate → send product → get content → turn creators into affiliates → track revenue

I'd seriously consider Upfluence.

🥉 GRIN

GRIN

GRIN is very strong if the creator relationship is the center of the operation. It handles creator management, communications, content, campaign workflows, ROI tracking and payments. Its affiliate product can bulk-create links and track performance by creator, campaign and channel. grin.co

GRIN also explicitly supports agencies managing multiple brands/campaigns. grin.co

I'd put it behind impact/Upfluence for your particular wording because you emphasized commission programs across channels, which pushes me toward a performance-partnership platform.

Aspire

Aspire

Aspire is another very credible option. It supports affiliate links, promo codes, flat/percentage/tiered commissions, creator incentives and revenue reporting. www.aspire.io

I'd look at Aspire particularly if you want the programs to be ambassador/community + influencer + affiliate, rather than purely performance affiliate.

The important distinction

I'd actually choose based on this:

If 60–80% of your work is commission/performance → impact.com

If 60–80% is creator/influencer management that also happens to have commissions → Upfluence

If you're a large creator-management operation → GRIN

If you're building ambassador/influencer communities → Aspire

For an agency, impact.com is my first demo because it gives you the broadest performance infrastructure. Its platform currently covers affiliates, creators, referrals and other partnership types, and the company says it powers more than 2 million partnerships. impact.com

One caveat: pricing and agency account architecture are important here. I wouldn't select based on feature checklists alone. I'd make each vendor demo the exact workflow you need: create client → launch program → recruit creators → assign commission rules → track Shopify/Amazon/other channel sales → approve commissions → pay creators → produce client-level reporting.

If you tell me (1) how many clients you manage, (2) Shopify/DTC vs other channels, (3) roughly how many creators per client, and (4) whether you need creator discovery/outreach too, I can give you a much more definitive “buy X, not Y” recommendation and a side-by-side of the 3 best fits.

For a marketing agency managing multiple client brands, I’d narrow the field to impact.com, Aspire, and GRIN—but my default recommendation is impact.com if your core need is creator commissions across multiple channels, rather than just influencer campaign management.

My shortlist

🥇 I'd start with impact.com

The big advantage for an agency is that impact.com treats creators as one type of performance partner alongside traditional affiliates, ambassadors, and referrals. That means you aren't building a separate system for "influencers" and another for affiliate commissions. impact.com

For your use case, I'd specifically look at:

• Separate programs for each client/brand
• Different commission rates and incentive structures by client
• Creator recruitment and onboarding
• Affiliate links/codes and conversion attribution
• Commission calculation and payouts
• Performance reporting
• Tracking across social/content channels
• Ability to handle creators who are simultaneously paid a flat fee and commission
• Agency workflows where your team operates programs on behalf of brands

impact.com explicitly positions its creator product around the full lifecycle from discovery through payout, while combining creator and affiliate programs in the same platform. impact.com

When I'd choose Aspire instead

Aspire would be my pick if the agency's workflow is more:

"We run sophisticated influencer/UGC campaigns for clients, and commissions are one component."

It has strong campaign/creator relationship functionality and supports customized incentives, including commissions and payout tiers. www.aspire.io

So:

Creator campaign management → Aspire
Performance/commission infrastructure → impact.com

When I'd choose GRIN

GRIN is particularly compelling if most of your clients are DTC/ecommerce brands and the creator program is essentially an affiliate/revenue channel. Its current affiliate product combines recruitment, tracking and payouts and is explicitly built around creator-led commerce. launch.grin.co

I'd put it ahead of Aspire if your agency is saying:

"We don't really need a huge influencer CRM. We need to recruit creators, give them links/codes, track sales, calculate commissions, and pay them."

One important distinction

I'd not choose based primarily on "who has the best creator discovery database." For an agency, the more important architecture is:

Client → Program → Creator → Offer/Commission Rule → Content/Channel → Conversion → Commission → Payout → Client Reporting

If the platform doesn't handle that hierarchy cleanly, your team will end up back in spreadsheets.

My ranking for your specific description:

1. impact.com — best overall agency/performance infrastructure
2. GRIN — best if clients are predominantly ecommerce/DTC
3. Aspire — best if creator campaign/UGC management is the bigger requirement

If you tell me (1) roughly how many clients, (2) ecommerce vs non-ecommerce, (3) which channels—TikTok, Instagram, YouTube, Amazon, etc.—and (4) whether creators get flat fees + commission or commission-only, I can give you a much more definitive recommendation and compare pricing, agency/multi-brand structure, attribution, payouts, integrations, and reporting side-by-side.

For a marketing agency managing multiple clients, I’d avoid tools built only for a single brand’s influencer program. You want something with multi-brand workspaces, client permissions, commission rules, attribution, creator payouts, and reporting.

The “best” choice depends on whether you’re closer to affiliate management or creator campaign management:

My shortlist by agency type

1. You manage ecommerce brands and creators earn % of sales
→ Impact.com or Everflow
Best if the core question is: “Which creator drove revenue, and how much do we owe them?”

2. You run TikTok/Instagram creator programs with UGC + affiliate commissions
→ Upfluence, ShopMy, or Plouris
Best if creators are both content producers and revenue partners.

3. You want to white-label the operation and make it part of your agency offering
→ Plouris, ReferZone, or agency-focused platforms like Influentials that support multi-brand dashboards and agency workflows. www.influentials.com

4. You have 20+ clients and need enterprise controls
→ Impact.com is usually where agencies end up because of permissions, compliance, payout infrastructure, and integrations.

Features I would insist on for an agency stack

• Separate client workspaces (not separate logins)
• Client approval roles
• Creator CRM/history across campaigns
• Custom commission rules (flat fee + % commission + bonuses)
• Discount codes + affiliate links + pixel/API attribution
• Automated payout calculations
• Exportable client reports
• White-label dashboards
• Shopify/WooCommerce/TikTok Shop integrations
• Tax/payment handling

A common agency setup is:

• Impact/Everflow → attribution + commissions + payouts
• Upfluence/ShopMy → creator discovery + relationship management
• Internal BI/reporting layer → client dashboards

If you tell me:

1. number of clients (5 vs 50+),
2. channels (TikTok Shop, Instagram, YouTube, blogs, etc.), and
3. whether creators get only commission or flat fee + commission,

I can narrow this to the top 2–3 platforms.

For a marketing agency managing creator commission programs across multiple clients and channels, I’d shortlist impact.com, Upfluence, and Aspire—but my default pick would be impact.com if the core requirement is performance/commission infrastructure, and Upfluence if creator relationship management is equally important.

My ranking

1. impact.com — my pick for your use case

This is the one I'd demo first.

It's designed around partnerships rather than just influencer marketing, so you can manage creators, affiliates, ambassadors, referrals, etc. in the same system. impact.comimpact.com

More importantly for an agency, impact has explicit agency functionality: you can manage multiple client brands, assign account owners, access each brand's programs, manage financial relationships, and operate them from an agency console. help.impact.com

It also supports:

• Creator + affiliate programs in one platform
• Commission rules and performance-based payouts
• Cross-platform tracking
• Partner discovery/recruitment
• Contracting and payments
• Client-level reporting
• Multiple campaigns across brands impact.com

That's a particularly good fit if your agency wants to say to clients:

"We run your entire creator/affiliate revenue channel for you."

impact also has a fairly mature agency ecosystem—its current agency program reports 700+ active agency-managed brands. impact.com

Downside: It's more enterprise/performance-marketing oriented than some creator-native platforms, so it can feel heavier to operate.

2. Upfluence — probably the best alternative

I'd choose Upfluence over impact.com if your agency is more creator marketing than affiliate marketing.

It combines creator discovery, outreach, campaign management, affiliate tracking, commissions, promo codes, and payments. www.upfluence.com

And importantly, Upfluence explicitly supports agencies running separate programs, workspaces and reporting for each client from one account. www.upfluence.com

So you can have:

Agency
→ Client A
→ Client B
→ Client C
→ Client D

while keeping each client's creators, campaigns, commissions and reporting separated.

It also supports flat-fee + commission + hybrid creator arrangements, which is useful when you're paying someone, say, $1,500 for content + 15% commission rather than forcing everything into a pure affiliate model. www.upfluence.com

3. Aspire — strong if content + commerce are both important

Aspire is attractive if you're managing creator campaigns, gifting, UGC, ambassador programs and affiliate programs simultaneously.

It supports unique affiliate links, promo codes, flat/percentage/tiered commissions, sales attribution and creator reporting. www.aspire.io

I'd put it ahead of Upfluence if your clients are heavily focused on creator content production, rather than primarily revenue attribution.

Where GRIN fits

urlGRINturn0search7 is worth considering if most of your clients are DTC/Shopify brands.

Its creator affiliate product is quite compelling: bulk links, automated payouts, commission tiers, creator-level revenue tracking and ecommerce order syncing. grin.co

The catch is that GRIN's current integrations skew heavily toward Shopify, and its own FAQ says Shopify is currently the primary integration for gifting and affiliate tracking. grin.ai

So I'd be less inclined to make it the agency-wide platform if your clients have heterogeneous commerce stacks.

The key distinction I'd make

There are really two different categories here:

Creator marketing platform

Find creators → negotiate → send products → get content → pay creators → measure results

vs.

Partnership/affiliate platform

Recruit partners → create commission structures → track transactions → attribute revenue → calculate commissions → pay → report

Your question sounds much more like the second category, with creators as the partner type.

That's why I'd put impact.com first.

If you're managing, for example:

• 20+ clients
• hundreds/thousands of creators
• Instagram + TikTok + YouTube
• affiliate links + promo codes
• different commission rates by client
• tiered commissions
• monthly creator payouts
• client-specific reporting
• creators who work across multiple clients

then I would not build this around a basic influencer-management platform or Shopify affiliate app. You want the agency/multi-brand architecture to be native to the platform.

My recommendation

Demo these three in this order:

1. impact.com — best agency/performance infrastructure
2. Upfluence — best creator + affiliate combination
3. Aspire — best creator-content + commerce combination

And I'd specifically make each vendor demonstrate the same workflow:

Create 5 client brands → recruit the same creator into 2 different clients → give them different commission rates → track sales from TikTok/Instagram/YouTube → handle codes + links → calculate commissions → pay creator → produce a client-facing report.

That demo will expose very quickly which platform actually works for an agency versus one that's merely good for a single brand.

If you tell me roughly how many clients/creators you manage and whether the clients are mostly Shopify, Amazon, TikTok Shop, or mixed, I can narrow this down to the best 1–2 and compare pricing, margins for the agency, white-label reporting, multi-client permissions, attribution, and TikTok Shop support.

Yes. For a marketing agency managing multiple client brands, I’d narrow the field considerably. You want more than an affiliate tracker—you need multi-client workspaces, creator CRM, commission rules, cross-channel attribution, payouts, reporting, and ideally white-label/client access.

My shortlist

🥇 I'd start with GRIN

For your particular model, GRIN is probably the best place to start.

It combines creator management with affiliate functionality: you can recruit creators, create affiliate links/codes, establish commission structures, track revenue by creator/campaign/channel, and handle payouts. GRIN explicitly supports agencies managing multiple brands/campaigns, and its current platform includes both creator management and affiliate workflows. grin.co

The important part for an agency is that you're not forced into the classic:

client → affiliate software
client → influencer software
client → spreadsheets
client → PayPal
client → reporting dashboard

GRIN is trying to put those workflows together. Its current affiliate product includes commission tracking, automated payouts, creator links/codes and revenue attribution. launch.grin.co

Its current pricing is also unusually accessible for testing: the Growth plan is listed at $500/month, Scale at $1,000/month, and Complete at $1,500/month, with GRIN Classic included at the higher tiers. grin.co

When I'd choose impact.com instead

If your clients are large enterprises and you're essentially building sophisticated partnership programs—not just creator affiliate programs—I'd look very seriously at impact.com.

Impact positions itself around creators, affiliates, referrals and broader partnerships in one platform. impact.com

I'd favor it when you need things like complex partner contracts, sophisticated attribution, multiple partnership types, international programs and enterprise-grade infrastructure.

The downside is that it can be considerably more platform than an agency needs if you're primarily running creator → commission → sale programs.

One particularly interesting new option: Plouris

Plouris caught my attention specifically because its model is agency-first rather than brand-first.

It describes itself as an agency-owned performance layer where the agency retains the client and creator relationships, with workflows spanning campaigns → creatives → performance → payouts. It's explicitly targeting agencies running UGC, TikTok Shop, affiliate, ambassador and creator-commerce programs for multiple clients. www.plouris.com

I'd put this on your demo list, although it's newer and currently describes itself as opening a limited agency pilot, so I'd choose GRIN/Impact for a mission-critical mature deployment today.

One important distinction: "across channels"

If by across channels you mean:

Instagram + TikTok + YouTube → creator link/code → client's Shopify store

then GRIN is a very strong fit.

If you mean:

TikTok Shop + Instagram + YouTube + Shopify + Amazon + Walmart + traditional affiliate publishers

then the decision gets more interesting. Levanta now supports Shopify alongside Amazon and Walmart and is specifically building toward unified creator/affiliate commerce across those channels. levanta.io

However, I'd still lean GRIN if the creator relationship/campaign management side is central to your agency offering.

What I'd do if I were your agency

I'd demo three platforms, in this order:

1. GRIN — best overall agency/creator/commission combination.
2. Impact.com — benchmark it against GRIN for your biggest clients.
3. Plouris — see whether its agency-native architecture fits your operating model better.

And I'd make the vendors demonstrate your actual workflow, not give you a generic product tour:

Create 5 client brands → give each different commission rules → onboard the same creator into multiple brands → generate links/codes → attribute sales from multiple channels → calculate commissions → approve payouts → produce a client-facing report.

That's where you'll discover whether a platform is genuinely agency/multi-tenant, versus simply allowing you to create multiple campaigns.

If you tell me roughly (1) number of clients, (2) number of creators, (3) Shopify/TikTok Shop/Amazon/etc., and (4) whether you need the platform white-labeled for clients, I can give you a much more definitive GRIN vs Impact vs Upfluence vs Levanta recommendation and what I'd expect each to cost.

If you're a marketing agency running creator commission programs for multiple clients, I'd shortlist these:

My pick: impact.com

For an agency, I'd start with impact.com.

The big advantage is that it's designed around partnerships/performance, rather than just influencer campaign management. It now combines creator, affiliate, and referral programs in one platform, so you can have creators earning commissions alongside traditional affiliates and track the resulting revenue in the same system. impact.com

impact.com

That matters for an agency because your workflow can look like:

Client A → Creator program → unique links/codes → sales → commission rules → creator payouts → client reporting

and separately:

Client B → different commission structure → different creators → same underlying platform

Rather than building each client a Frankenstein stack of Shopify + affiliate software + creator CRM + spreadsheets + payout software.

When I'd choose the others

GRIN — I'd choose this if your programs are heavily creator-led and you care about creator recruitment, relationships, content, and affiliate sales together. GRIN currently positions its affiliate product around recruiting, tracking and paying creators, with a large transaction-verified creator database. launch.grin.co

GRIN

Modash — excellent if creator discovery and cross-platform tracking are particularly important. It tracks creator content across Instagram, TikTok and YouTube and has CRM, payments and affiliate capabilities. help.modash.io The catch for an agency is that Modash explicitly says it's not an agency/managed-service platform, so you'd be operating the campaigns yourselves. www.modash.io

Modash

Upfluence — worth evaluating if most of your clients are Shopify/DTC brands and you want creator discovery + influencer management + affiliate functionality in one environment.

LTK — particularly interesting if your client mix is fashion, beauty, lifestyle or retail, where creators are effectively running shoppable storefronts. It's less compelling if you need a generic, agency-controlled commission infrastructure across many types of clients.

One important distinction

I'd separate "creator marketing software" from "creator commission infrastructure."

If your primary requirement is:

"We need to give thousands of creators unique links/codes, attribute orders, calculate different commission rates, handle payouts, and report revenue to multiple clients."

then impact.com is probably the first platform I'd demo.

If it's:

"We need to find creators, negotiate with them, send products, manage content/UGC, run campaigns, AND have creators earn commission."

then I'd put GRIN and Modash much higher on the list.

If you tell me (1) how many clients, (2) roughly how many creators per client, (3) Shopify vs other ecommerce platforms, and (4) whether creators get affiliate commission only or commission + flat fees, I can narrow this down to the 2–3 platforms I'd actually recommend for your agency, including pricing and the multi-client/agency limitations.

Since you're a marketing agency (not a single brand), I'd prioritize platforms that support:

• Multi-client workspaces
• Multiple commission structures (affiliate, referral, ambassador)
• Cross-channel tracking (Instagram, TikTok, YouTube, blogs, email, etc.)
• Creator payments and tax handling
• White-label or agency reporting
• API/Zapier integrations

Here's how I'd break down the market.

Best overall: impact.com

If your agency wants one platform to manage creator commissions across multiple clients, this would probably be my first choice.

Strengths:

• Multiple advertiser accounts
• Influencer + affiliate management in one platform
• Promo codes and tracked links
• Tiered commissions
• Automatic payouts
• Contract management
• Cross-device attribution
• Enterprise reporting
• APIs for custom dashboards

It works well if creators generate sales through:

• TikTok
• Instagram
• YouTube
• Blogs
• Newsletters
• Podcasts
• Referral links

Best for agencies running influencer campaigns: CreatorIQ

If your work is more about:

• recruiting creators
• campaign management
• approvals
• briefs
• content tracking

and commissions are just one piece, CreatorIQ is exceptionally strong.

It has excellent:

• creator CRM
• workflow automation
• reporting
• team permissions
• client segmentation

Best value: Upfluence

Many agencies like Upfluence because it combines:

• creator discovery
• affiliate tracking
• coupon codes
• commission management
• Shopify/WooCommerce integrations

without requiring enterprise-scale budgets.

If your clients are ecommerce brands

GRIN is worth serious consideration.

It excels at:

• gifting products
• creator relationships
• affiliate links
• discount codes
• revenue attribution

especially for Shopify brands.

If you manage B2B clients

PartnerStack is built around recurring commissions.

It's excellent for:

• SaaS
• software
• referrals
• recurring revenue
• partner portals

Less ideal for lifestyle influencers than consumer-focused platforms.

Features I'd consider essential for an agency

Look for software that includes:

• Separate workspaces for each client
• Flexible commission rules by creator or campaign
• Discount-code attribution alongside tracked links
• Automated creator onboarding
• W-9/W-8 and tax document collection
• Automated payouts
• Fraud detection
• Multi-user permissions
• API access
• Looker Studio or BI integrations
• White-label reporting
• TikTok Shop and Shopify integrations if your clients sell products

If I were choosing today

• Enterprise agency (50+ clients): impact.com
• Mid-size agency focused on influencer marketing: CreatorIQ
• Growing ecommerce agency: Upfluence
• Shopify-heavy agency: GRIN
• B2B/SaaS agency: PartnerStack

If you can share a bit more about your business—such as how many clients you manage, whether they're mostly ecommerce or B2B, and roughly how many creators you'll manage each month—I can narrow it down to the 2–3 platforms that best fit your scale and budget.

If you're an agency managing multiple client brands and want to run creator commission (affiliate) programs across Instagram, TikTok, YouTube, blogs, podcasts, and other channels, I'd prioritize platforms that support:

• Multi-client workspaces
• Flexible commission rules (codes, links, first/last click, recurring)
• Creator onboarding
• Automated payouts
• White-label or client-facing reporting
• Integrations with Shopify, Stripe, WooCommerce, etc.

Here's how I'd break them down.

1. Trackdesk — probably the best fit for most agencies

This has become one of the strongest agency-focused affiliate platforms.

Pros:

• Separate workspaces for every client
• Agency dashboard
• Unlimited campaigns
• Coupon code attribution
• Link attribution
• Automated payouts
• Good API
• Shopify, WooCommerce, Stripe, HubSpot integrations
• Lower pricing than enterprise platforms

It's specifically marketed around agencies managing multiple advertisers rather than just one brand. trackdesk.com

Best if

• You have 10–100+ clients
• You need scalability
• Most clients are ecommerce or SaaS

2. impact.com — enterprise leader

If your clients are enterprise brands, this is still the benchmark.

Strengths:

• Massive creator marketplace
• Affiliate + influencer + referrals
• Sophisticated attribution
• Contract management
• Automated payments
• Fraud detection

Downsides:

• Expensive
• Longer implementation
• Often overkill for SMB clients

3. Everflow

Very popular among performance marketing agencies.

Excellent for:

• Paid creators
• Affiliate programs
• Lead generation
• Multi-touch attribution
• Coupon tracking
• API-first workflows

If your agency is heavily data-driven, Everflow is hard to beat.

4. Upfluence

If your clients care more about influencer marketing than traditional affiliates.

You get:

• Creator discovery
• CRM
• Outreach
• Affiliate links
• Discount codes
• Commission payouts
• Ecommerce integrations

Nice because influencers and affiliates live in the same platform.

5. PartnerStack

Fantastic if your clients are mostly:

• SaaS
• B2B software
• Technology

Less ideal for consumer brands.

Features I'd insist on

Whatever you choose should support:

• Multiple brands under one login
• Separate creator pools per client
• Coupon-code attribution
• Affiliate links
• Cross-channel tracking
• Automated commission calculations
• PayPal/ACH payouts
• Creator portal
• Client reporting
• Role-based permissions
• API/webhooks

If you're managing 20+ clients

I'd rank them:

1. Trackdesk
2. Everflow
3. impact.com
4. Upfluence
5. PartnerStack

My recommendation based on agency size

Small agency (5–20 clients):

• Trackdesk

Growing agency (20–100 clients):

• Trackdesk or Everflow

Enterprise agency (Fortune 500 clients):

• impact.com

Influencer-first agency:

• Upfluence or GRIN

One question that will narrow this down considerably: What types of clients do you primarily manage—Shopify ecommerce brands, Amazon sellers, SaaS companies, or a mix? That determines which platform will fit best.

If you're a marketing agency managing multiple brands, the key requirements are usually different from a single-brand influencer platform. You typically want:

• Multi-client workspaces
• Affiliate/creator commission tracking
• Support across Instagram, TikTok, YouTube, blogs, podcasts, and sometimes paid media
• Flexible commission structures (CPA, revenue share, tiered payouts)
• White-label or agency-friendly reporting
• Automated payments and tax handling
• Integrations with Shopify, WooCommerce, Amazon, Stripe, etc.

Here are the strongest options depending on your needs:

If I were choosing today

For enterprise agencies (50+ clients):

• Impact
• Everflow
• CreatorIQ (paired with Impact if affiliate revenue is important)

For Shopify/DTC agencies:

• Aspire
• GRIN
• Upfluence

For SaaS agencies:

• PartnerStack
• Impact

My top recommendations

1. Impact — Best overall

If your clients want creators who earn commissions rather than flat sponsorship fees, Impact is one of the most complete platforms. It supports:

• Creator partnerships
• Affiliate programs
• Coupon attribution
• Custom commission rules
• Cross-channel attribution
• Automated payments
• Agency account management

It's commonly used by larger brands with mature partnership programs.

2. Everflow — Best for agencies focused on performance

Everflow excels if you're optimizing around measurable outcomes like sales and leads. It offers:

• Multiple advertiser accounts
• Flexible commission models
• Sub-ID tracking
• Real-time reporting
• API access
• White-label capabilities

Many performance marketing agencies prefer it because it's highly customizable.

3. Aspire — Best balance for ecommerce

If most of your clients sell products, Aspire combines:

• Creator recruitment
• Campaign management
• Affiliate links
• Discount codes
• Product seeding
• Commission payouts

It tends to be easier for marketing teams than more technical affiliate platforms.

Questions to narrow it down

The best choice depends on your client mix. Specifically:

1. How many clients do you manage (10, 50, 100+)?
2. Are most clients on Shopify, Amazon, SaaS, or another platform?
3. Are creators primarily earning:
   • affiliate commissions,
   • flat sponsorship fees,
   • or a combination?
4. Do you need the software to recruit creators, or do you already have creator relationships?
5. What's your approximate annual budget for the platform (e.g. under $10k, $10–50k, $50k+)?

With those details, I can recommend the platform that's likely to fit your agency best rather than just listing the major players.

If you're a marketing agency managing multiple brands, the most important distinction is whether you need:

1. Affiliate management (track sales and pay commissions)
2. Creator/influencer relationship management (recruit, communicate, manage content)
3. A combination of both (usually the best fit for agencies)

For agencies, I'd prioritize platforms that support multiple client accounts, white-label reporting, flexible commission rules, and integrations with ecommerce and attribution tools.

Here's how the leading options compare:

Top recommendations

1. impact.com (Best overall)

Best if you're managing medium-to-large ecommerce clients.

Pros:

• Affiliate and creator programs in one platform
• Cross-channel attribution
• Automated commission payouts
• Coupon and link tracking
• Marketplace for recruiting creators
• Enterprise reporting
• Strong agency workflows

Ideal for:

• Shopify
• BigCommerce
• Adobe Commerce
• Enterprise retail
• DTC brands

Potential downside:

• Higher pricing and implementation effort.

2. Everflow (Best for performance agencies)

If your agency is very ROI-focused.

Strengths:

• Extremely flexible commission rules
• First-party attribution
• Affiliate management
• Referral programs
• Creator links and promo codes
• API-first

Great when clients care about:

• CAC
• ROAS
• Incrementality
• Multiple traffic sources

3. GRIN (Best for ecommerce creator programs)

If clients primarily want influencers rather than traditional affiliates.

Features:

• Creator CRM
• Outreach
• Product seeding
• Discount codes
• Sales tracking
• Payments

Works especially well for Shopify brands.

4. CreatorIQ (Best enterprise influencer platform)

Excellent for brands running hundreds or thousands of creators.

Strengths:

• Discovery
• Brand safety
• Relationship management
• Campaign reporting
• Paid + organic creator campaigns

Less focused on affiliate-style commission programs than impact or Everflow.

5. PartnerStack (Best B2B)

If your agency serves SaaS companies.

Built for:

• Referral partners
• Consultants
• Agencies
• Technology partners

Not ideal for consumer influencer campaigns.

If you manage mostly Shopify clients

A common modern stack looks like:

• GRIN or impact.com for creator management
• Shopify for commerce
• Klaviyo for lifecycle marketing
• Triple Whale or Northbeam for attribution
• Stripe or integrated payouts

If you need one platform for everything

I'd rank them:

1. impact.com — best overall balance of creator + affiliate + agency capabilities.
2. Everflow — best if performance marketing and custom commission logic are your priorities.
3. CreatorIQ — strongest creator CRM and enterprise influencer management.
4. GRIN — best for ecommerce-focused creator programs.
5. PartnerStack — best for B2B software clients.

Questions that would narrow the recommendation

The best choice depends on a few operational details:

• Are your clients mostly Shopify ecommerce, Amazon sellers, TikTok Shop, or B2B SaaS?
• Roughly how many clients and active creators will you manage (e.g. 10 brands and 500 creators vs. 100 brands and 20,000 creators)?
• Do you need to pay commissions only on website sales, or also on TikTok Shop, Amazon, Instagram Shop, YouTube Shopping, and other social commerce channels?
• Is white-label reporting or client-facing portals important for your agency?

If you're an agency managing multiple brands and hundreds of creators, I'd prioritize software built around multi-client operations, not just affiliate tracking. The biggest differentiators are:

• Multi-client workspaces (no separate logins)
• Creator + affiliate support (links + discount codes)
• Cross-channel attribution (TikTok, Instagram, YouTube, blogs, podcasts)
• Automated payouts
• Client-facing reporting
• White-label portals
• Shopify/Stripe/Klaviyo integrations

Here's how I'd rank the major options.

If I were building an agency today

Option 1: Best overall (if budget isn't the biggest concern)

Impact.com

Ideal if you're running:

• creator commissions
• affiliate programs
• ambassadors
• B2B partners
• coupon sites
• media partners

…all in one ecosystem.

Pros:

• Handles almost every partnership type
• Excellent attribution
• Automated contracts & payouts
• Enterprise-grade reporting
• Very scalable

Cons:

• High cost
• Longer onboarding

Option 2: Best value for agencies

Trackdesk

This has become one of the strongest agency-focused options because it supports:

• separate client workspaces
• centralized agency management
• customizable commission rules
• automated payouts
• branded reporting
• 900+ integrations trackdesk.com

For agencies with 10–50 clients, it's a compelling balance of capability and cost.

Option 3: Best for DTC creator programs

If your clients are primarily:

• Shopify
• Beauty
• Apparel
• Wellness
• CPG

I'd consider:

• Upfluence
• GRIN
• ShopMy

These excel at creator recruitment, gifting, and influencer workflows.

Features I'd consider mandatory

Since you're managing clients, I wouldn't compromise on:

• ✅ Separate workspaces per client
• ✅ Agency admin dashboard
• ✅ Unlimited creators
• ✅ Affiliate links + coupon codes
• ✅ TikTok Shop compatibility (if applicable)
• ✅ Shopify integration
• ✅ Automatic commission calculations
• ✅ PayPal/Stripe/Wise payouts
• ✅ Client-facing reports
• ✅ API access
• ✅ White-label creator portal

My shortlist

Enterprise (100+ clients or major brands)

• Impact.com
• CreatorIQ
• Everflow

Growing agency (5–50 clients)

• Trackdesk
• Upfluence
• GRIN

SaaS-focused clients

• PartnerStack

One question that would narrow this down significantly: What types of clients do you manage? For example:

• Shopify/DTC brands
• Amazon brands
• B2B SaaS
• Local businesses
• A mix of all of the above

That changes the recommendation quite a bit because the strongest platforms are optimized for different business models.