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Join over 7,400 brands using Customer.io to power personalized, omnichannel customer engagement.

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Customers love us

Preferred by product-led companies 

Clearbit-w

Customer.io is the most intuitive and robust omnichannel messaging platform I’ve ever used. They beat the competition out of the water.

Alex MacCaw
Alex MacCawFounder
Goody

Now we have all of the data and tools we need, which enables us to quickly build [gift notification emails] in the campaign builder with no additional engineering support required.

Wendy Zhang
Wendy ZhangSenior Program Manager
Lighthouse.app

Customer.io is an irreplaceable piece for our marketing automation and operations stacks. It's flexible and powerful, yet simple and intuitive enough such that anyone on our team can build rich, diverse customer journeys with ease.

Matt See
Matt SeeCOO
Guardio

We were blown away by our ability to have marketers create complex automations without having to get too technical. We also have engineers in the platform and love that both departments can easily execute their visions.

Ido Schachter
Ido SchachterR&D Tech Lead
WIN Reality

I’ve worked with many ESPs in my career, and I’ve never seen such robust segmentation and branching logic before. It’s been so critical in setting up our customer communications. Basically, anything is possible with the right logic in Customer.io, which is amazing for a data and analytics-driven team.

Madi Sacks
Madi Sacks Director of Lifecycle Marketing
Klar

We use all channels in our campaigns, when it makes sense to do so. Last month we sent over 11M emails, over 5M push notifications, almost 1M in-app messages, and almost 100,000 SMS messages from Customer.io.

Diego Schocher
Diego SchocherBusiness Architect
Dolphin Technologies

Customer.io can do what other marketing automation tools can’t—take in millions of events from users per day, segment through them almost instantly, and use any campaign action imaginable to create workflows.

Gerald Aichholzer
Gerald AichholzerDigital Marketing Executive
Soundview Communications

What really makes Customer.io stand out is your focus on data. You make it easy to get the data we need, whether it’s sending it in or getting it out. The cherry on top is we can leverage our data to dynamically personalize our segmentation efforts and messaging.

Marc Messer
Marc MesserDirector of Digital Marketing
Spotahome

One of the biggest successes with Customer.io is being able to have multiple teams use the platform to generate value. Because the UI is so intuitive, anyone can go in and start building complex campaigns.

Jorge Alonso
Jorge AlonsoMarketing Manager