OVERALL CUSTOMER
REFERENCE RATING
4.7
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"We’re happy with Customer.io. It’s simple. It works. It suits us well. We know it can scale up. We kn..."
Andy Acs
Co-Founder
"It’s quick and painless to get new marketers up to speed with how Customer.io works, even if they don..."
Thibaut Davoult
Growth Engineer
"Using Customer.io has boosted our numbers in every imaginable way — from audience growth to engagemen..."
Grace Garey
Co-founder
"The segmentation is amazing and has been incredibly helpful for pinpointing all the nuances that we n..."
Dalton Vogler
Digital Marketing Manager
"We send thousands of requests a day through Customer.io to update different attributes, and it’s alwa..."
Justin Searles
Senior Fullstack Engineer
"Our initial onboarding email campaign for totally new new leads that come in from the giveaways intro..."
Claire Zhang
Growth Lead
"We use Customer.io for sending all transactional and outreach emails. Their support team is WOW. They..."
Pratik Agarwal
Product Manager
"Customer.io allowed us to easily set up drip campaigns that increase the activation rate of new signu..."
Steve Klein
CEO
"We’re trying to keep the community engaged and stay top of mind, but not be annoying. I want people t..."
Justin Cudmore
Product Manager
"It's crucial for our team to make onboarding as fast and painless as possible because teachers are su..."
Brendan Appold
Director of Classroom Success
"We've worked with a lot of email systems in 16 years and we love that you can execute everything with..."
Michael Nemeroff
Chief Executive Officer
"Customer.io dramatically improved the way we communicate with our customers. The app is extremely sim..."
Ben Buckwold
CEO

Testimonials & Customer References of individual Customer.io customers - their endorsements, recommendations, and customer success results of using the software or service. Read these Testimonials & Customer References to decide if Customer.io is the right business software or service for your company.

We monitor all 15 testimonials to prevent fraudulent testimonials and keep all our testimonials quality high. We only post testimonials verified by the vendor. Verified testimonials require that customer is an actual user of the product.