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 3207 reference ratings
4.7/5.0 (3207)
  • 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

  • "If I ever have a question about Klaviyo, Andrew and Ed have been super great about getting back to me and helping me. Segmented email marketing is a key revenue driver for us and I look forward to using Klaviyo more."

    Andrew WiseDirector of eCommerce

  • “Klaviyo gives us the opportunity to automate the entire customer journey — from when people visit the website, add something to their cart, and purchase something, to post purchase with reviews and advocacy.”

    Ilia LaliashviliMarketplaces and Performance Executive

  • “Focus on your marketing automations and campaigns, and bring as many people into your email and SMS database as possible. Understand that you don’t own your Facebook, Instagram, or Google advertising performance—those platforms do. With these data privacy changes, more marketers realize they’re on rented land and they need to own as many brand assets as possible. The best brand asset that still exists is an email address or a phone number.”

    Ben SchreiberFounder of Brand Caffeine and Head of Growth
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Featured Case Studies

  • How Custom Ink Quickly Integrated With Klaviyo, and How Easy and Impactful They Found This New Marketing Automation Platform to Be

    Allyson AyersEmail Marketing Manager and Employee

  • Blank Label - Customer Case Study

    Fan BiChief Executive Officer

  • Catbird - Customer Case Study

    Sriya KarumanchiMarketing and Communications Manager
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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 1,812,664+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.