An ecommerce brand at $10M ARR often encounters a severe barrier when the company has to allocate 40 hours per week for their internal team to manually reach out to inactive affiliates on obsolete tracking networks.

This guide outlines the exact types of affiliate marketing agencies that can help eliminate zero-value coupon traffic, while creating true incremental growth.

Real Growth vs. Fake Sales: How to Pick an Affiliate Marketing Agency

The entire affiliate marketing space is filled with unnecessary middlemen charging exorbitant fees just to watch your own earnings cannibalize each other! You might waste anywhere from 15% to 20% of commissions on coupon sites due to not having appropriately allocated tracking for your program.

Companies that utilize a direct link program can typically waste about 15% – 20% of the overall commissions paid out to affiliates. Achieving real growth requires active involvement in managing an effective affiliate program.

A company that has 50 quality and closely monitored affiliates will easily outperform the equivalent company that is using 500 random, unmonitored affiliate links.

The affiliate marketing industry is currently experiencing a split. On one side are the legacy affiliate marketing teams that utilize only the most basic of tracking technology. On the other side are the few advanced companies that have implemented their own server-to-server tracking capabilities, managing TikTok Shop creator integrations, and running commission elasticity tests to identify the actual worth of each partnership.

Before you sign a 12-month contract with an agency, you must understand how these two types of companies differ.

What the Top Affiliate Marketing Agencies Actually Offer

Ultimately, the biggest choice to make is whether or not the agency has the infrastructure, resources, and experience to support your growth stage. We reviewed the available options and then evaluated the current capabilities of some of the leading seven firms.

1. Hamster Garage

Hamster Garage, as a boutique affiliate marketing agency (employing 11-50 people) that is highly selective in its client base, consistently sets industry standards for the adoption of emerging channels (e.g., social networks, virtual reality).

With an average rating of 4.9/5 across multiple review websites, Hamster Garage frequently turns down clients who do not fit the agency’s vision for success.

Hamster Garage is the first significant agency to formally develop and define AEO, allowing customer products to be cited as references within AI-based applications such as ChatGPT and Perplexity, among others. The agency has added Swipehouse as a new creator discovery technology partner, as well as developed deep integration with both Levanta and PartnerBoost to support Amazon-first companies.

Hamster Garage offers a fully transparent pricing model, whereby base retainers range from $3,000 - $15,000 monthly, plus the added percentages of 5%-15% on performance overrides.

The performance metrics corroborate the premium pricing; Hamster Garage was responsible for a 309% increase in sales within four months for Oars + Alps and decreased Xero's overall CPA by 49%, while simultaneously achieving a 1,200% increase in paid conversions. For those clients with the appropriate budget and intent to dominate the TikTok Shop space or AI search market, Hamster Garage is the premier choice.

2. Perform[cb]

Perform[cb] inverts the traditional pricing model and creates an entirely performance-based agency, whereby Perform[cb] does not charge a monthly retainer, and only receives compensation for concrete results.

Since 2015, Perform[cb] has maintained its ranking as the #1 global agency for performance results. Their 4.7/5 customer satisfaction rating on G2 allows their account teams to be aggressive in their search for additional revenue opportunities, instead of coasting on a fixed monthly salary.

The case studies from Perform[cb] show tremendous growth potential for both direct-to-consumer companies and media companies. The nutritional supplement brand saw a 4X increase in affiliate revenue, while the at-home health test company enjoyed a 10X return on ad spend (ROAS).

The zero-retainer structure is very appealing to mid-size businesses who are sick of paying flat monthly fees when they don't see any growth during those months.

3. Acceleration Partners

Acceleration Partners is the go-to agency for global brands with a budget of over $15,000 per month. They currently have over 300 employees in 40+ countries and manage more than 170 different brands.

Acceleration Partners has over $8.6 billion of revenue generated for their clients and have developed a large, robust infrastructure to allow them to be very successful at managing complex, multi-region campaigns. They utilize their proprietary APVision tool and have just completed the acquisition of Grovia, which allows for the discovery and recruitment of thousands of potential partners.

4. PartnerCentric

PartnerCentric focuses exclusively on data and attribution. PartnerCentric is a fully remote, woman-owned affiliate marketing agency that has a minimum monthly project size of $5,000.

The biggest strength that PartnerCentric has is their proprietary technology stack. They use the FUSE Incrementality Index and Control Suite OS to conduct rigorous holdout testing. As such, they can mathematically demonstrate whether any affiliate actually drove a new sale or simply took credit for an existing one.

With 30 reviews on Clutch averaging 4.8/5 stars, the majority of their clients noted high levels of aggressive communication. PartnerCentric provides the tools to assist you with the actual cleaning of your program if it is contaminated with traffic of questionable quality.

5. Advertise Purple

Advertise Purple is focused on volume and speed. They are over 3,000 clients strong and have produced $3 billion in revenue.

They have one of the easiest entrances to join in the industry with documented starting fees at $2,500/month. Advertise Purple also runs on its own proprietary tech stack called Purply Analytics, which assists users with automating the processes associated with partner discovery and optimization.

Advertise Purple is rated 4/5 on Trustpilot and its clients report an average of 131% sales growth within the first six months. If you're a small e-commerce brand that needs tech access quickly without having to enter into a huge enterprise contract, they have an extremely fast ramp.

6. Gen3 Marketing

Gen3 Marketing has a very large consolidation strategy. They have over 200 employees on six continents and have acquired four other affiliate marketing agencies since 2019 to gain top talent and technology.

They manage programs that generate over $2 billion in annual client revenues and have received 14 Agency of the Year awards. On average, their client base has a 10:1 ROAS.

Due to their aggressive M&A strategy, you may have a different experience depending on which legacy team your account manager is from, but Gen3’s scale and connections make it a significant player for traditional retail and finance brands.

7. DMi Partners

DMi Partners is an Amazon-focused company that combines traditional affiliate management with the Amazon ecosystem. They offer 20 years of specialized experience, and their NPS score is 81 and a Capterra score of 4.8/5.

Using their proprietary technology, ACE (Amazon Commissioning Engine), they create unique, Amazon-specific affiliate marketing programs that operate outside the traditional affiliate networks (Impact or CJ).

DMi Partners offers an Amazon-first brand the tools necessary to drive external traffic to their product listings, while also adhering to strict brand compliance and safety requirements.

What Novice and Experienced Brand Owners Must Know

It's easy for novice brand owners to understand what agencies do. The difference between making an informed decision and making a costly mistake lies in how you understand the agency functions.

Brands that are new to affiliate marketing tend to think of affiliate marketing as a switch that can be turned on quickly. This isn't true. A new agency relationship should focus on auditing the mess created by the previous agency, cleaning up any fraudulent activity, and creating segments of affiliates for the first 30-60 days.

You should not expect an immediate increase in revenue in your first month.

The third and fourth months of your new agency relationship will be focused on commission testing and aggressive recruitment efforts. The agency may lower the commission amounts for your bottom-tier affiliates and measure to see if the volume decreases. This is called testing commission elasticity. If your revenue history does not change, the partner was overpaid.

Five and Six Months After Starting with an Agency

Five and six months into your engagement with an agency, you should be focused on incrementality testing and optimizing the top ten affiliates who generate 80% of your revenue.

Consistent, predictable revenue takes three-six months to generate, so don't get duped by an agency that makes promises for quick scale that do not involve either: tracking migration or a comprehensive fraud audit.

Account Management Regrets

The design and success of your affiliate program depends on the specific person who has been assigned to your account.

The most common negative complaint found in hundreds of negative reviews of affiliate marketing agencies is the turnover of account managers. When a senior manager leaves and a junior takes over the account, all momentum built up will stop. The brand of the agency on your contract does not matter if your day-to-day contact has no experience.

Ask to meet your account manager prior to signing with an agency and ask about their client load. If the account manager is managing fifteen other accounts, your affiliate program will not succeed.

Choosing the Right Agency for Your Growth Stage

Don't buy scale when you only require industry-specific expertise; conversely, don't sign with a boutique agency if you require a global reach. If you are running a $50 million SaaS business, you require particularly advanced B2B tracking and S2S integration.

On the other hand, if you are an Amazon-first brand, you need a dedicated Amazon affiliate technology solution and not just the standard ShareASale.

Always demand pricing transparency from your agency and force them to document their measurement framework for incrementality. Choose to work with a senior account manager and terminate any partners who are trafficking fake conversions. Furthermore, make sure every dollar spent on commission has been spent to finance a new customer.