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 3401 reference ratings
4.7/5.0 (3401)
  • Top Performer 2025 2025
    Winter 2025Top PerformerCustomer Data Platforms
  • Hot 100 Vendor 2024 2024
    2024Hot 100 Vendor Award

Featured Testimonials

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

  • “Try to grow organically. Whether that’s pitching bloggers and journalists, search engine optimization, or customer referrals, it’s very hard starting out to be able to be profitable doing paid customer acquisition, namely Google Adwords or Facebook Ads. Growing organically is a great litmus test if your business has legs, because if bloggers aren’t interested enough to write about you, or customers aren’t interested in returning or referring, you’ve probably got something more fundamental to figure out before hitting up paid marketing.”

  • "The ease of the switch from mailchimp to Klaviyo was outstanding - the Klaviyo team helped out with all my questions and hesitations. The 'out of the box'/pre built automation flow that are in Klaviyo have not only benefited us in time spent (or not in this case) in the setting up but also we have noticed an increase in our revenue. Also some flows that we would have never thought of building!"

Featured Case Studies

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

  • How KontrolFreek Uses Klaviyo to Send Fewer Texts and Convert More Carts

  • How Ripple Training Uses Email Segmentation to Compete in the YouTube Era

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.