Devon Cox has spent 16+ years doing one thing: making websites convert better. As Founder and President of ConversionTeam, he leads a CRO agency that targets a minimum 40x ROI for every client engagement—and routinely exceeds it, with results including 200x ROI for a leading online jewelry retailer and 1,000x ROI for the largest gift card e-tailer in the US.

What separates Devon from most CRO consultants is the depth of his technical foundation. He holds a B.S. in Business and Computer Science from Boston College and an MBA in Marketing & Entrepreneurship from the University of Colorado Boulder. That rare combination of engineering rigor and marketing instinct drives ConversionTeam’s scientific approach to testing.

Devon built his expertise across every stage of the optimization lifecycle. He started in product management at ServiceMagic (now HomeAdvisor), where he generated over $1M in incremental revenue through A/B testing. At ShopAtHome.com, he scaled paid acquisition programs while directing 60+ multivariate tests. He went on to lead conversion optimization at Inflow, one of the largest ecommerce agencies in the US, where he designed and analyzed over 900 A/B tests across 60+ ecommerce businesses.

In 2021, he founded ConversionTeam with a simple premise: CRO should deliver measurable, guaranteed results. The agency backs that up with a performance guarantee—30% improvement in 90 days—and maintains a 65%+ A/B test win rate, more than double the industry average of ~30%.

Devon also built Nantu, an open-source enterprise A/B testing platform, because the existing tools didn’t meet the standards his team needed. It’s the kind of move that reflects his philosophy: if the tool doesn’t exist, build it.

ConversionTeam’s client roster spans Fortune 1000 retailers, ecommerce brands, B2B SaaS companies, and lead generation businesses. Named clients include JTV, Giftcards.com, LKQ, Vince, and Houseplans.net. Across 20+ published case studies, results include $14 million in incremental revenue for a jewelry ecommerce brand, a $5 million revenue lift for a house plans retailer, and an 18% revenue lift from a single checkout optimization.

Devon is based in Denver, Colorado.