Customer.io References Capped?

Access even more references from these marketplace competitors

Work at
Customer.io?
Upgrade Profile
  • 4.8 / 5.0 (2317)
    Sponsored 73+ References
  • 4.8 / 5.0 (4161)
    Premium 508+ References
  • 4.8 / 5.0 (5316)
    396+ References

Customer.io

Verified
Read 69 Customer.io reviews and testimonials from customers, explore 34 case studies and customer success stories, and watch 1 customer videos to see why companies chose Customer.io as their Transactional Email Software

Customer.io is a leading customer engagement platform designed for organizations to create personalized customer journeys that engage, convert, and scale. Orchestrate messages across all channels, including email, in-app, SMS, push, and webhooks. Over 7,500+ companies, including Notion, Typeform, and Angi, rely on Customer.io to power their messaging needs.

Show more
Categories:
Show more
  • 69 Testimonials View
  • 34 Case Studies View
  • 1 Customer Videos View
Customer Rating Review Score based on 1819 reference ratings
4.8/5.0 (1819)
  • Winter 2026 Top Performer Transactional Email Software
    Press Release Report

Check out this Top Rated Customer.io alternative

  • Top Performer
    Customer Rating Review Score
    4.8 / 5.0 (2317)

    Drip is the CRM Salesforce didn’t build. The first e-commerce CRM - ECRM - is built to drive sales, not sales teams. Build personal, profitable customer relationships at scale with Drip. They’re a lot like you. They believe in working hard, lending a hand wherever they can, never settling for …

    Learn more about Drip

69Testimonials

  • "Our initial onboarding email campaign for totally new new leads that come in from the giveaways introduces our service and leads users to fill out a form. People who click …

    Claire Zhang Growth Lead

  • "Our mantra is simple—get the right message to the right user at the right time. Personalization has been key to making our communications meaningful."

    Simon Heaton Buffer

  • "We haven't met a single large retailer in Mexico that is actually capable of having this information right on their screen for the marketing person doing the campaigns, without requiring …

    Ramiro Gonzalez Head of Strategy
68 more testimonials currently locked

34 Case Studies

  • How DoSomething increased their open rate by 180%

    Anthony Aurrichio Senior Manager, Digital Engagement

  • How Monarch Money boosted engagement with Customer.io

    Sue Cho Head of Lifecycle Marketing

  • How LES MILLS+ transformed customer retention with a winning strategy

33 more case studies currently locked

1 Customer Videos

0 more videos currently locked

Additional Customer.io Information & Resources

Read Customer.io Reviews, Testimonials & Customer References from 69 real Customer.io customers.

Browse Customer.io Case Studies, Customer Success Stories, & Customer References from 34 businesses that use Customer.io.

Watch Customer.io Customer Videos to learn why 1 businesses chose Customer.io.

Explore answers to frequently asked questions about Customer.io.

FeaturedCustomers has 1,990,653+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.