Klaviyo

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Read 143 Klaviyo reviews and testimonials from customers, explore 82 case studies and customer success stories, and watch 6 customer videos to see why companies chose Klaviyo as their Marketing Automation Software

Klaviyo (CLAY-vee-oh) powers smarter digital relationships, making it easy for businesses to capture, store, analyze, and predictively use their own data to drive measurable, high-value outcomes. Klaviyo’s modern and intuitive SaaS platform enables business users of any skill level to harness their first-party data from more than 350 integrations to send the right message at the right time across email, SMS, and push notifications. Innovative businesses like Good American, TaylorMade, Liquid Death, Stanley 1913, and more than 146,000 other paying customers leverage Klaviyo to acquire, engage, and retain customers—and grow on their own terms.

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Customer Rating Review Scorebased on 3462 reference ratings
4.7/5.0 (3462)
  • Top Performer 2025 2025
    Winter 2025Top PerformerCustomer Data Platforms
  • Hot 100 Vendor 2024 2024
    2024Hot 100 Vendor Award

Featured Testimonials

  • "We have grown substantially year on year, and we’re not seeing any signs of slowing down. Klaviyo is keeping up and supporting us in every next step, consistently rolling out new features that allow us to do new and interesting things, which allows us to grow."

  • "Integrating our Woocommerce site with Klaviyo has allowed us to build targeted prospecting, cart abandonment and loyalty email marketing flows - easily. We're seeing great performance in every flow. In fact, our email marketing was responsible for 43% of our online sales in the last 90 days. We never achieved this level of success with any other email marketing platform."

  • "Klaviyo’s integration with Shopify allows us to seamlessly and effectively execute our digital marketing strategy whether it’s behavioral segmentation with frequent purchasers, lead generation or automated flows. The campaign builder is also a tremendous tool that lets us design, segment and send on the fly with a killer on-brand look."

Featured Case Studies

  • The VIA Institute on Character grows share of revenue from email 2.5x after switch to Klaviyo

  • McConnell’s Fine Ice Creams drives 55x Klaviyo ROI with help from Olo and Square integrations

  • Boat Outfitters grows email and SMS revenue 71% after switching both to Klaviyo

Featured Customer Videos

Additional Klaviyo Information & Resources

Read Klaviyo Reviews, Testimonials & Customer References from 143 real Klaviyo customers.

Browse Klaviyo Case Studies, Customer Success Stories, & Customer References from 82 businesses that use Klaviyo.

Watch Klaviyo Customer Videos to learn why 6 businesses chose Klaviyo.