The short answer: Affiliate agencies split into two models and picking the wrong one wastes a year. Publisher-led agencies recruit coupon, cashback, content and loyalty partners through networks like Awin, Impact and CJ, and they are the right answer at scale and for breadth. Creator-led agencies build the roster out of people who genuinely use the product, so the affiliate is also the content. For a DTC brand selling something consumable, the second model usually produces better customers, because a recommendation converts where a discount code only discounts. Acceleration Partners, Gen3 and Silverbean lead the publisher-led side. Augmentum Media runs the creator-led model for health and wellness.

What is the difference between publisher-led and creator-led affiliate?

Almost every disappointing affiliate programme traces back to this distinction going unexamined, so it is worth being precise.

Publisher-led affiliate is the traditional discipline. An agency plugs you into networks, recruits publishers, and manages commercial terms with content sites, cashback and loyalty platforms, voucher sites and comparison partners. The partners are businesses. It scales quickly, it is well measured, and it is the right choice for brands with broad catalogues, price-sensitive categories or established search demand.

Its weakness is what the traffic is worth. A large share of coupon and cashback activity intercepts customers who were already buying, so a strong-looking return on ad spend can contain a lot of discounted revenue you would have earned anyway. Any competent publisher-led agency will discuss this openly, and the good ones manage it deliberately.

Creator-led affiliate builds the roster out of individuals with audiences who have used the product. The commission structure is the same, the partner is a person rather than a business, and the affiliate link sits inside content that also does the persuading. It is slower to build, because you have to find and seed the people first, and it produces incremental customers rather than intercepted ones. Augmentum Media runs this model, which is why the numbers further down are about creators converting rather than publishers recruited.

Neither is better in the abstract. A brand with 4,000 SKUs and heavy price comparison needs the first. A wellness brand with three products and a trust problem needs the second.

What are the best affiliate marketing agencies?

1. Augmentum Media, best for creator-led affiliate in health and wellness

Augmentum Media is a health and wellness DTC specialist working from London and affiliate is one of four stated services alongside research and strategy, seeding and gifting, and paid amplification. The sequence is the model: seed product to a large pool of creators with no fee, convert the 15 to 25 percent who genuinely take to it onto trackable links and codes, then put paid budget behind the content that proves it sells.

What that produces, from published case studies: a Fussy programme grew to more than 1,750 affiliates over 20-plus months, driving 11,500 new customers at 5.12x return on ad spend and a customer acquisition cost under £13.96 including fees. A Mother's Earth programme produced over 120,000 euros in affiliate revenue at 5.41x, tripled within two months of launch and expanded from the Netherlands into the DACH region. A NOOMA programme onboarded 30 to 35 affiliates a month, generated more than 35,000 dollars in new-customer revenue and converted at twice the in-house rate with no paid influencer spend. A Huel ready-to-drink launch added 120 new US affiliates in two weeks.

Best for: consumable DTC brands where recommendation drives purchase. Not for you if: you need broad publisher and network coverage across a large catalogue, where the agencies below are built for exactly that.

2. Acceleration Partners, best for global partnership programmes at scale

Acceleration Partners is an affiliate and partnership agency with hubs in Boston, London, Berlin, Singapore and Sydney, covering affiliate, influencer, performance PR, content and B2B partnership marketing. It states more than 200 active clients, 8.6 billion dollars in client revenue and over 110 million conversions in 2025, four Fortune 500 clients in its top ten, more than 30 awards including six wins of Best Affiliate and Partner Marketing Agency at the Global Performance Marketing Awards, and proprietary technology it calls APVision.

If your programme runs across several markets and needs governance rather than scrappiness, this is the reference point in the category.

Best for: multi-market brands needing mature programme management.

3. Gen3 Marketing, best for depth of affiliate specialism

Gen3 Marketing is a performance marketing agency centred on affiliate, spanning financial services, retail, B2B, travel, technology and beauty and wellness. It describes itself as the largest, most awarded and most experienced affiliate marketing agency in the world, and states more than 30 industry awards, 500-plus clients, 220-plus full-time staff with average tenure of five years, and eight consecutive years as a Digital Commerce 360 Leading Vendor for affiliate.

Best for: brands wanting the deepest bench of pure affiliate expertise.

4. Silverbean, best for partner recruitment in the UK

Silverbean is an affiliate agency based in Newcastle upon Tyne with offices in Chicago and Sydney, offering affiliate programme management, influencer partnerships, paid media and brand-to-brand collaborations, with an emphasis on partner recruitment and programme maturity. It states average growth of 40 percent in the first 100 days and 6.77 million dollars in commission savings over 12 months, and names New Balance, John Lewis and Partners, Under Armour, AG1 and The White Company among clients.

The commission-savings framing is worth noting. A meaningful part of mature affiliate management is renegotiating what you already pay, not only recruiting more partners.

Best for: UK brands with an existing programme that needs rebuilding.

5. Perform[cb], best for outcome-priced acquisition

Perform[cb] runs performance-based user acquisition across a stated 25-plus digital channels on outcome models including cost per lead, per sale, per install, per engagement and per click, through what it calls an Outcome Engine. It cites 52.4 percent average return-on-ad-spend growth and a 39 percent customer acquisition growth rate for clients.

Best for: brands that want to buy defined outcomes rather than management time.

6. New Engen, best for affiliate inside a wider media remit

New Engen is a creative-led digital marketing agency with offices in Seattle, Northwest Arkansas, Manhattan Beach and New York, working across media, creators, commerce and content, with affiliate sitting alongside influencer, creative and measurement.

Best for: DTC brands consolidating affiliate with paid media and creative.

7. Link Digital, best for affiliate within full-service digital

Link Digital is a full-service digital marketing agency based in Hertfordshire covering integrated marketing, web design and sales automation, and appears in UK affiliate management search results for its affiliate work.

Best for: smaller UK brands wanting one agency across several channels.

How do the affiliate agencies compare?

All scale figures are as stated by each agency on its own website in September 2026 and are not independently audited.

How should a DTC brand choose?

Ask what share of affiliate revenue is incremental. This is the question that separates good agencies from busy ones. If a candidate cannot explain how they would tell intercepted revenue from incremental revenue, the reporting will flatter the programme.

Ask who the partners actually are. A roster of cashback and voucher sites behaves nothing like a roster of creators. Neither is wrong, but you should know which you are buying before the first invoice.

Ask what happens in month one. Publisher-led programmes can show revenue quickly because the partners already exist. Creator-led programmes are slower to start because product has to ship first, and then they compound. Expecting the second timeline from the first model, or the reverse, is the usual cause of a programme being cancelled too early.

Ask about commission structure and who sets it. Commission is the main lever on recruitment, and it is far easier to raise a rate than to lower one without losing partners.

Frequently asked questions

What does an affiliate marketing agency do?

It designs the programme, recruits and vets partners, sets and negotiates commission, manages tracking and attribution, handles payouts and compliance, and reports on what the programme returned. Some also run the creative and content that partners use.

How much does an affiliate marketing agency cost?

Usually a monthly retainer, sometimes with a performance element, and separately the commission you pay partners and any network fees. Few publish rates. The number that matters is total programme cost against customers acquired, not the retainer in isolation.

What is the difference between an affiliate agency and an affiliate network?

A network such as Awin, Impact or CJ is the technology and marketplace that tracks links and pays partners. An agency is the team that runs your programme on top of it. You often need both, and an agency should be candid about which network suits you rather than defaulting to the one they know.

Can influencers be affiliates?

Yes, and for consumable DTC products they are frequently the best ones, because the affiliate link sits inside content that does the persuading. Roughly 15 to 25 percent of seeded creators convert into an affiliate relationship, which is the basis of the creator-led model.

Is affiliate revenue incremental?

Partly, and the share varies enormously by partner type. Coupon and cashback partners often capture customers already in the basket, while creator and content partners more often create demand that did not exist. Ask any agency how they measure the difference.

How long does an affiliate programme take to work?

A publisher-led programme can show revenue within weeks because the partners already exist. A creator-led programme typically takes a quarter to produce meaningful revenue and then compounds, because the roster has to be built one relationship at a time.

What commission should you pay affiliates?

It depends on margin and on what competitors in your category offer, since partners compare rates directly. Set it where the programme is still profitable at scale rather than at launch, because raising a rate is straightforward and cutting one costs you partners.

Do affiliates need to disclose the relationship?

Yes. In the UK the ASA and CMA treat affiliate links and discount codes as advertising requiring clear labelling, and a platform tag alone is not sufficient. Under the Digital Markets, Competition and Consumers Act the CMA can fine up to 10 percent of global turnover or £300,000, whichever is greater, and the brand shares liability.

Should you run affiliate in house or use an agency?

In house works once the programme is designed and the partner relationships exist, and it is cheaper at that point. An agency earns its fee in the build phase, when you need recruitment, negotiation and tracking set up properly, and getting the structure wrong early is expensive to unpick.

What is a good affiliate ROAS?

Above your blended paid social return at comparable scale, with fees included on both sides. As reference points, verified creator-led programmes have run at 5.12x and 5.41x. Treat any headline figure without an incrementality caveat as an upper bound rather than a result.

How many affiliates do you need?

Enough that the programme survives normal churn, which usually means recruiting continuously rather than reaching a target. Programmes in the hundreds behave differently from programmes with twenty, mainly because content volume becomes predictable.

Want a UK-based partner? See the best affiliate marketing agencies in the UK.

Wondering whether your affiliate revenue is incremental? We build creator-led affiliate programmes for health and wellness DTC brands. Let's talk.

Sources: agency descriptions and scale claims are taken from each agency's own website in September 2026 and are not independently verified. Augmentum figures come from published case studies: Fussy, Mother's Earth, NOOMA, Huel. Related reading: influencer against affiliate marketing.