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We are proud of our clients’ testimonials

Express Gifts Home

“Their method of working suits us perfectly and continues to strengthen our partnership”

We wanted to create a strategic partnership with a conversion optimisation agency that could help us grow.

We wanted an agency that shared the same ethos as ours and one that would support and guide us with realistic and reliable advice.

Endless Gain have shown they are that partner and together we are tackling our big challenges head on.
Their research which includes biometrics is advanced and insightful.

Combined with their deep understanding of psychology and online human behaviour, the solutions they are proposing and the results we are getting are impressive.

Beyond their expertise in optimisation, they are professional, likable and genuinely interested in our business.
Nothing is too much trouble for them.

Their method of working suits us perfectly and continues to strengthen our partnership.

Craig Elwell

Craig Elwell
Head of Ecommerce, Express Gifts

Evans Cycles

“We are continually impressed with their process and the output of their work”

We initially engaged Endless Gain to undertake a user experience study on our website.

We wanted to work with them because we believe in their scientific and research based approach backed up by real user testing. Our initial project has now grown into a healthy ongoing business partnership.

As a strategic partner, they are helping to drive real value for our customers and our business.

Ben Hart

Ben Hart
Ecommerce Director, Evans Cycles


“Strategic thinking with the ability to move quickly”

The team at Endless Gain have fitted in seamlessly with our in-house teams. We have been impressed with their breadth of knowledge, strategic thinking, and their ability to move quickly.

We shift and innovate rapidly, and it’s essential we partner with companies able to do the same. Endless Gain have proven their ability with tangible results against our objectives, and have been a pleasure to work with along the way.

Mark Leach

Mark Leach
Head of Ecommerce, Missguided

Julian Charles

Julian Charles Website

“We’ve enjoyed some terrific results that have seen our sales soar.”

Having launched online back in December 2014 with a new brand to the market, the business was heavily reliant upon paid media channels to drive traffic to the website. In order for the marketing investment to remain sustainable, it was crucial that our conversion rate was constantly improving. We engaged with Endless Gain back in 2016 to support us with exactly that and the relationship has blossomed since we started working with them in May 2017.

The team are talented and a joy to work with. Their methodology is clear, thorough and the execution is first class.

We’ve enjoyed some terrific results that have seen our sales soar. To date, the tests we have run have impacted revenue by over 28% and we anticipate this to rise even higher in the coming months. Their approach is undoubtedly setting them apart from the rest of the CRO competition with an amazing high-tech laboratory coupled with the use of Biometrics to really understand how emotion impacts a user’s shopping journey. It’s this USP which made the partnership a no-brainer and we look forward to a long and successful relationship.

Tom Wilcock

Tom Wilcock
Head of Multi-Channel, Julian Charles


“Both highly practical and strategically valuable”

Their research was extremely thorough and objective, looking at the issue from a wide range of perspectives so that conclusions could be based on multiple observations, not just on isolated findings.

They have a very professional team, and I was particularly impressed by the way in which they managed the end-user research in their own usability lab.

Their recommendations were both highly practical – a list of clearly prioritised ‘micro’ actions – and strategically valuable – a guide to the Heal’s value proposition and how we should execute it.

I would happily recommend Endless Gain to any ecommerce business looking at how they can not only eradicate bugs and improve usability, but also create a strategic roadmap for future development.

David Kohn

David Kohn
Ecommerce Director, Heals

Trend Micro


I initially engaged Endless Gain to work with our company to help rebuild our analytics and tracking. From there we progressed into CRO for our European business and ultimately rolled out to our Global business.

For the last two years we have received an outstanding service level, with complete transparency and incredibly impressive results. For context, we are a global consumer business operating websites in 50 countries, 40 languages and multiple currencies. The initial goal we set for Endless Gain was to increase annual recurring revenue by €2m in Europe. This was easily achieved in the first year and in fact one of the gems they uncovered was rolled out globally and increased revenue by $7m per annum.

This was not a simple button change, or wording adjustment, but rather a significant change to our customer journey that was proposed on the back of deep customer research and analysis by the Consumer Psychologist in the team. While the change was significant for customers, the execution of the test and implementation of the change was made incredibly easy by Endless Gain.

We have worked with multiple CRO agencies in the past, large and small, but the breadth of experience we have access to with Endless Gain is second to none. The Director of Analytics provided an exceptional service to our business and really helped the team understand that ‘if you can’t measure it, you can’t fix it’. We had previously recruited a ‘bug hunting’ company to crawl through our websites and conduct cross browser and cross device testing, but Endless Gain did this for us too and they identified much more, but were also able to filter this in a way that made sense for us a business to prioritise.

The design services were great not only for creating the tests that we wanted to build, but also for the Heuristic Analysis that was provided to help create hypothesis for testing. All in all, Endless Gain brought the voice of the customer, front and centre in our business. CRO has provided our business with significant learnings but most of all significant ROI. I have no reservations whatsoever about recommending Endless Gain as the best CRO agency we’ve come across and the best Digital Agency I’ve worked with in any field.

Derek Gallagher

Derek Gallagher
Ecommerce Manager, Trend Micro

Lula Lu

“You found us money we didn’t even know we had lost”

You found money we didn’t even know we had lost. As a result, we’ve got more sales and happy customer feedback that our site has become even easier to navigate.

I just wish we had started working with Endless Gain sooner.

Ellen Shing

Ellen Shing
CEO, Lula Lu

Our Clients