Klaviyo

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Read 94 Klaviyo reviews and testimonials from customers, explore 40 case studies and customer success stories, and watch 5 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 3235 reference ratings
4.7/5.0 (3235)
  • Top Performer 2025 2025
    Winter 2025Top PerformerCustomer Data Platforms
  • Hot 100 Vendor 2024 2024
    2024Hot 100 Vendor Award

Featured Testimonials

  • “As a long-time Klaviyo customer, we already understood the benefit of having access to the depth of data available for personalization and targeting. We knew by using email and SMS together in Klaviyo we could better target our audiences and improve our performance. For us, switching to Klaviyo SMS was a no-brainer.”

  • “Klaviyo blows away all the competition at it’s price point. I did about a week of research about ESPs & all roads were leading to Klaviyo.”

  • "Klaviyo has helped us significantly grow our email revenue over the last 18 months. By taking advantage of Klaviyo's customer segmentation,flows, and smart sending features, we are reassured that we are not just "spraying and praying" but actually getting important marketing messages into customer's inboxes that they are more likely to click through."

Featured Case Studies

  • How Premier Achieves a 12% Click Rate Using the Price Drop Trigger

  • How Product Reviews Helped Waves Gear Get an 8% Revenue Lift

  • How Email Marketing Became a Lifeline for Grind’s Business

Featured Customer Videos

Additional Klaviyo Information & Resources

Read Klaviyo Reviews, Testimonials & Customer References from 94 real Klaviyo customers.

Browse Klaviyo Case Studies, Customer Success Stories, & Customer References from 40 businesses that use Klaviyo.

Watch Klaviyo Customer Videos to learn why 5 businesses chose Klaviyo.