Customer.io
Customer.io is a behavioral messaging platform for triggering personalized and event-based customer communication.
Market Share of Customer.io
Current Customer(s)
2634
Market Share (Est.)
32.41%
Ranking
#1
Top Competitors and Alternatives of Customer.io
The top three of Customer.io’s competitors in the Email Personalization category are Movable Ink with 10.34%, SmartrMail with 8.79%, Blueshift with 7.75% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Movable Ink | 840 | 10.34% | Customer.io vs Movable Ink |
| SmartrMail | 714 | 8.79% | Customer.io vs SmartrMail |
| Blueshift | 630 | 7.75% | Customer.io vs Blueshift |
| Emma | 628 | 7.73% | Customer.io vs Emma |
| RetailRocket | 542 | 6.67% | Customer.io vs RetailRocket |
| TargetBay | 416 | 5.12% | Customer.io vs TargetBay |
| Reply | 314 | 3.86% | Customer.io vs Reply |
| Dialog Insight | 283 | 3.48% | Customer.io vs Dialog Insight |
| Yet Another Mail Merge (YAMM) | 264 | 3.25% | Customer.io vs Yet Another Mail Merge (YAMM) |
| WhatCounts | 252 | 3.10% | Customer.io vs WhatCounts |
| TextExpander | 209 | 2.57% | Customer.io vs TextExpander |
| NiftyImages | 103 | 1.27% | Customer.io vs NiftyImages |
| Sendspark | 77 | 0.95% | Customer.io vs Sendspark |
| Nova.ai | 41 | 0.50% | Customer.io vs Nova.ai |
| Covideo | 31 | 0.38% | Customer.io vs Covideo |
| Gmelius | 30 | 0.37% | Customer.io vs Gmelius |
| CartStack | 27 | 0.33% | Customer.io vs CartStack |
| Oracle Siebel Email Marketing | 24 | 0.30% | Customer.io vs Oracle Siebel Email Marketing |
| Parcel | 12 | 0.15% | Customer.io vs Parcel |
| Gammadyne Mailer | 12 | 0.15% | Customer.io vs Gammadyne Mailer |
Popular Comparisons
Top Competitors and Alternatives of Customer.io
The top three of Customer.io’s competitors in the Email Personalization category are Movable Ink with 10.34%, SmartrMail with 8.79%, Blueshift with 7.75% market share.
Customer.io vs Movable Ink
Customer.io vs SmartrMail
Customer.io vs Blueshift
Customer.io vs Emma
Customer.io vs RetailRocket
Customer.io vs TargetBay
Customer.io vs Reply
Customer.io vs Dialog Insight
Customers of Customer.io
Around the world in 2026, over 2615 companies have started using Customer.io as Email Personalization tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Verisure | 10,000+ | Versoix | Geneva | Switzerland |     |
| EF Education First | 10,000+ | Newton | Massachusetts | United States | |
| SumUp | 10,000+ | London | England | United Kingdom | |
| Staples Canada | 10,000+ | Richmond Hill | Ontario | Canada | |
| SocialPilot | 10,000+ | Lewes | Delaware | United States | |
| Shutterstock | 10,000+ | New York City | New York | United States | |
| BambooHR | 10,000+ | Draper | Utah | United States | |
| Concentrix | 10,000+ | Newark | California | United States | |
| REMAX | 10,000+ | Denver | Colorado | United States | |
| Gupy | 10,000+ | Sao Paulo | Sao Paulo | Brazil | |
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Customer.io Customers by Products and Services
The top three products and services offering customers that use Customer.io for Email Personalization are Technology (64), Saas (64), Marketing (51).
Customers
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Customer.io Customers by Employee Size
The majority of Customer.io's customers for the email-personalization category fall in the company size of 20 - 49 employees (781 companies), 0 - 9 employees (650 companies), 100 - 249 employees (562 companies).
Employee Size
Customer.io Customers by Geography
The top three geographies of Customer.io for email-personalization are the United States with 1203(57.15%), Brazil with 216(10.26%), United Kingdom with 169(8.03%) customers respectively.
Customers
Employees of Customer.io
Also see other Products/Services by Customer.io in:
FAQ
Find answers to the most often asked questions by users.
Who are the top Customer.io competitors?
Customer.io’s Top competitors in the email-personalization category are Movable Ink, SmartrMail, Blueshift. You can view a full list of Customer.io competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Customer.io and 40,000 other technologies on the internet. You can also compare Customer.io and its feature with top competitors here : Customer.io vs Movable Ink Customer.io vs SmartrMail Customer.io vs Blueshift.
What is Customer.io customer distribution based on company size?
What is Customer.io market share in the email-personalization?
What are the top countries that use Customer.io?
What are the top industries that use Customer.io?
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