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 3187 reference ratings
4.7/5.0 (3187)
  • Top Performer 2025 2025
    Winter 2025Top PerformerCustomer Data Platforms
    Press ReleaseReport
  • Hot 100 Vendor 2024 2024
    2024Hot 100 Vendor Award

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Featured Testimonials

  • “I used to be skeptical because I felt like when you send out emails, you’re just spamming people with content that isn’t relevant to them. Now I think that if you’re sending content that’s interesting, relevant, and personalized then it’s no different from marketing in person. You can’t ignore email marketing—even if you’d like to. We all need to use email marketing and moving forward, it’s the way to go.”

    Frankie CookeBrand Coordinator

  • “In Klaviyo, we can get really granular with our targeting, whether we’re using campaigns or flows. We’ll send specific products or messages to our audience based on information we already know about them, which we learn through our customer data.”

    Eric BlandingOwner

  • "We have grown our clients sales significantly from when they switched from MailChimp to Klaviyo. We refuse to use MailChimp. It's outdated and confusing. We feel that Klaviyo is the top e-commerce email marketing platform on the market. It's been incredibly easy to port clients from MailChimp to Klaviyo. And we love how simple it is to integrate with Shopify. The Klaviyo Shopify integration is much simpler than any of the other ESP's we used in the past."

    ChaseFounder
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Featured Case Studies

  • How Smart Home Beveiliging’s Personalized Marketing Strategy Drove a 242% Revenue Increase

  • Klaviyo integrations help turn 20% of new Doe Lashes subscribers into customers

    Jason WongFounder

  • How BarkShop Creates Top Dog Email Segmentation

    Tazz UppinEmail Lead
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Featured Customer Videos

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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.

FeaturedCustomers has 1,806,014+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.