We grow businesses with AB testing.

Growth Rock is an ecommerce conversion rate optimization (CRO) agency based in the San Francisco Bay Area (San Jose). Our clients are worldwide, ranging from New York City, to Los Angeles, to Arizona, to even Germany and Ireland. Founded in 2013, we've spent the past 6 years running hundreds of AB tests per year on ecommerce, SaaS, and media sites. Since 2016, we've exclusively focused on ecommerce conversion optimization.


We’ve written extensively about ecommerce CRO and AB testing both on and off our blog, including:


Our work has been praised or mentioned by brand and influencers in the ecommerce space including:


We work with 7, 8, and 9-figure ecommerce sites to increase their conversion rates with AB testing. You can read more about our thoughts on the ROI of AB testing here.

Clients Include

“The Apple store of mattress stores.” - Forbes

Empire Today

America’s largest shop-at-home flooring provider. 60 years in business. - Business Wire

Swimsuits for All

“Leading size-inclusive swimwear brand.” - E! Online

Perfect Keto

“Perfect Keto makes the best MCT-oil powder around.” - The Strategist

Kettle & Fire

“One of our favorite bone broths is Kettle & Fire.” - Men’s Journal

Edible Arrangements

“900 franchises across nine countries. Half a billion dollars in sales each year.” - Business Insider


“Caseology's reputation for artistry is a point of pride.” - CNET


“Luxury fashion that donates proceeds from every purchase directly to children in need.” - People Magazine


Devesh Khanal

Growth Rock was founded by Devesh Khanal, a scientist by training with an engineering Ph.D. from the University of California, Berkeley. Growth Rock was born as a love child of his left-brain and right-brain interests: the scientific method + great UX design. In addition to Growth Rock, Devesh is the co-founder of Grow and Convert, a content marketing agency, and Schedulus, an email to calendar event app. He also co-founded Wordable.io a tool for easily publishing blog posts (sold).


Devesh Khanal

Devesh Khanal


Lisa Nguyen

Lisa Nguyen

Quality Assurance

Ravi Desai

Ravi Desai

UI and UX Design

We are a fully remote team. We believe that the future of work will be increasingly remote and diversified. Our team spans multiple timezones from Pacific, Central, Eastern, and even Europe.

We manage all client projects in Trello with meticulous processes for keeping track of the details of each AB test.

Work With Us

Apply to work with us via this form, or learn more here.

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    We write in depth articles on our conversion optimization findings, and you can get those articles by joining our email list below.