Boston, MA, United States Business Est. 2012 www.klaviyo.com

Klaviyo is a growth engine for Shopify Plus stores. We accelerate momentum for ecommerce businesses -- and we do it in a fast, reliable, scalable, and cost-effective way. Unlike every other marketing platform, Klaviyo doesn't force a trade off between ease of use and powerful functionality. We're designed to offer both, which means our customers can optimize for revenue AND speed. That's why more than 1,100 of the most innovative Shopify Plus brands sell more with Klaviyo.

Partner since

April 2017


  • English



Klaviyo easily allows us to refine our email and ad targeting. We contact our fans with more relevant messages, which has in turn increased our conversion rates across the board.

Justin Adler, Email Marketing ManagerChubbies

Other email software is for sending emails. Klaviyo is for making money.

Fred Perrotta, CEO and FounderTortuga

I’ve really enjoyed using Klaviyo as a platform to connect with our customers. It’s very intuitive once you get familiar with the tools and their support team is incredibly helpful.

Jenny Durre, Digital CoordinatorBeard Brand