High-growth ecommerce brands need an agency that can scale a program across markets and partner types without losing the performance that got it there in the first place. eMarketer’s 2026 affiliate marketing forecast found US affiliate spending will reach $13.81 billion this year, growing faster than ecommerce overall and generating an estimated $241.03 billion in US ecommerce sales, a channel too significant to run on a set-it-and-forget-it structure.
Key Takeaways
- Le Col grew affiliate revenue from 5.8% to 22% of total business revenue over six years working with Acceleration Partners, expanding from the UK into the US in 2021 and Germany in 2025.
- Global affiliate revenue grew 31% year over year, with US revenue up 146% and UK revenue up 16%, driven by market-specific strategy rather than a single playbook copied across regions.
- New customer acquisition grew 67% in the US and 51% in the UK year over year, the result of shifting partner focus toward upper-funnel and closed-group partnerships instead of leaning on partners that just capture existing demand.
- Affiliate marketing is growing faster than ecommerce as a whole, which means high-growth brands that treat it as a static, set-once channel are leaving compounding growth on the table.
Why high-growth ecommerce brands need more than a standard affiliate setup
Most ecommerce affiliate programs are built once, at launch, and then left to run largely unchanged. That works fine while a brand is small. It becomes a ceiling the moment growth accelerates or a brand enters a new market, because the partner mix, tracking setup, and reward strategy that worked for one audience rarely transfer cleanly to the next.
Le Col, a cycling apparel brand, is a clear example of what the alternative looks like. Its affiliate partnership with Acceleration Partners began in the UK and, over six years, expanded into the US in 2021 and Germany in 2025. Each expansion came with its own partner recruitment and platform optimization rather than a copy-paste of the UK program, and affiliate revenue grew from 5.8% to 22% of total business revenue across that period.
What to look for in a high-growth ecommerce affiliate agency
A handful of specific capabilities separate an agency built for sustained, multi-market ecommerce growth from one still applying a small-brand playbook.
A plan for partner diversification that doesn’t stop at launch. Le Col’s program expanded beyond its original partner types to include Content, Card-Linked Offers (CLO), and Loyalty partners as it scaled, rather than sticking with whatever categories worked at the start.
Ongoing subnetwork audits, not a one-time cleanup. As a program’s volume grows, so does the number of low-quality affiliates that accumulate inside it. Acceleration Partners ran a subnetwork audit for Le Col specifically to identify and remove those affiliates, protecting the program’s revenue share over years, not just in the first few months.
Real use of platform data to separate new customers from repeat ones. For Le Col, that meant using Awin’s funnel and journey path reports and building new-versus-existing customer tracking directly into the platform, so upper-funnel and solo-contribution partners could be identified and prioritized instead of guessed at.
Market-by-market recruitment for global expansion. Le Col’s US and Germany launches each involved in-market affiliate expertise and local partner relationships, which is why US revenue grew 146% and UK revenue grew 16% in the same year rather than one market cannibalizing the other’s strategy.
Real results from a high-growth ecommerce global expansion
Acceleration Partners has managed Le Col’s affiliate program for over six years, acting as an extension of the brand’s team as it expanded from the UK into the US in 2021 and Germany in 2025. Over that partnership, affiliate-driven revenue grew from 5.8% to 22% of Le Col’s total business revenue, a 282% increase in affiliate revenue share.
The strategy combined platform optimization with deliberate partner diversification. Using Awin’s funnel and journey path reports, the team focused recruitment on upper-funnel and solo-contribution partners across Content, CLO, and Loyalty categories, then ran a subnetwork audit to remove low-quality affiliates dragging on performance. Targeted rewards with closed user groups like Endurance Zone and Blue Light Card became two of Le Col’s top 10 affiliate performers by 2025, and fixed-fee placements with niche cycling media, including Cyclist Magazine and Future Publishing, delivered strong standalone returns.
The results compounded across markets: global revenue grew 31% year over year, with US revenue up 146% and UK revenue up 16%. New customer acquisition grew 67% in the US and 51% in the UK, evidence that the upper-funnel focus was driving genuinely incremental customers rather than just recapturing existing ones.
If your ecommerce program has plateaued, or hasn’t kept pace as you’ve expanded into new markets, reach out to our team to talk through what a diversified, multi-market affiliate strategy could look like, including what to expect during the first 90 days.
Frequently asked questions
What if our affiliate program has plateaued after early success?
A plateau usually means the original partner mix and tracking setup have not evolved with the business. Diversifying into new partner categories, running a subnetwork audit to remove underperforming affiliates, and reviewing platform data for upper-funnel opportunities are the most common ways to restart growth in a program that has stalled.
How does affiliate marketing scale as ecommerce brands expand into new markets?
Scaling into a new market rarely works by copying the home-market program directly. Le Col’s expansion from the UK into the US in 2021 and Germany in 2025 each involved its own in-market partner recruitment, which is why US revenue grew 146% year over year without slowing UK growth.
How important is ongoing partner-quality monitoring as a program scales?
Very. As a program’s volume grows, so does the number of low-quality affiliates that accumulate inside it over time. Regular subnetwork audits, not just a one-time cleanup at launch, keep a growing program’s revenue share protected as it scales.
Should we use one affiliate network or several as we scale?
It depends on the brand, but consolidating around a platform chosen for strong reporting and attribution, the way Le Col’s program relies on Awin’s funnel and journey path data, often makes it easier to distinguish genuinely incremental partners from ones simply capturing existing demand.
What partner mix works best for a high-growth ecommerce brand?
eMarketer’s 2026 data points to a channel growing faster than ecommerce overall, and the brands capturing that growth tend to combine upper-funnel content partners with CLO and loyalty partnerships, plus targeted rewards for closed user groups, rather than relying on a single partner type.
