Enterprise CRO agency with 100+ specialists. Uses A/B testing, UX research, and personalization to drive $2B+ in client revenue.
Widerfunnel is the experimentation and optimization company. They partner with leading organizations to implement and scale experimentation systems, driving insights and growth through services like Conversion Rate Optimization, Personalization, and Experimentation Program Implementation.
Our take on Wider Funnel (now Conversion)
Wider Funnel, now operating under the Conversion brand, is an enterprise-grade CRO agency with over 100 CRO specialists across the UK and North America. The agency has helped clients generate over $2 billion in additional revenue through systematic experimentation and optimization.
The agency's methodology uniquely blends A/B testing, UX research, and personalization to improve client websites and business outcomes. Their multiple optimization frameworks — including PIE, Levers, and Easier scoring models — help clients prioritize testing efforts for maximum impact.
With deep experience across enterprise engagements, Conversion brings the scale, process maturity, and strategic sophistication required for complex optimization programs. Their approach extends beyond website optimization to include product and pricing experimentation and effective personalization strategies.
For enterprise organizations seeking a CRO partner with proven large-scale capabilities and a rich portfolio of optimization frameworks, Conversion offers industry-leading expertise. Their track record of generating billions in additional client revenue demonstrates the transformative potential of their systematic optimization approach.
Verified credentials and recognition earned by Wider Funnel (now Conversion)
Verified
This agency has a verified website presence.
LinkedIn Verified
This agency has a verified LinkedIn company page.
Top Rated
This agency has an exceptional AgencyCluster score of 80+.
15+ Years
Established in 2007. Over 15 years of experience.
Mid-Size
Medium (51-200)
Rankings earned on AgencyCluster
Common questions about Wider Funnel (now Conversion).
Wider Funnel (now Conversion) has earned rankings on 3 AgencyCluster lists: Top 50 Conversion Rate Optimization, Top 25 Conversion Rate Optimization, Top 10 Conversion Rate Optimization. Their highest AgencyCluster Score is 98/100. Rankings are merit-based and determined by evidence across six evaluation pillars — agencies cannot pay for higher positions.
In our evaluation for Conversion Rate Optimization, Wider Funnel (now Conversion) scores 98/100 overall. Their strongest areas are Credibility, Proof of Work & Outcomes, Reputation, Category Fit, Delivery Maturity, Freshness. A high Outcomes score means they have verifiable case studies with measurable results — the most heavily weighted factor in our methodology.
Wider Funnel (now Conversion) was founded in 2007, giving them over a decade of experience in conversion rate optimization. In an industry where many agencies are less than 5 years old, 19+ years of sustained operations signals stability, client retention, and the ability to adapt through multiple technology cycles. Today, the team is mid-size.
Yes. Wider Funnel (now Conversion) has been vetted and verified by AgencyCluster's editorial team through a rigorous, multi-factor review process. Unlike self-serve directories, AgencyCluster does not accept automated submissions — every agency is evaluated manually before being published. Our vetting covers identity verification (website, LinkedIn, domain age), business legitimacy (years of operation, team size, registered presence), evidence of work (case studies, portfolio, client outcomes), reputation checks across third-party platforms, activeness and freshness of their online presence, and screening for red flags including misconduct, fraud, or misleading claims. Agencies that fail any critical check are not listed. For Wider Funnel (now Conversion), verified signals include a functioning website, LinkedIn company profile, 19+ years of operating history (founded 2007), 3 earned rankings on curated top lists.
