Spectrum Equity

Customer.io

customer.io

Customer.io is a customer engagement platform that leverages first-party data to create personalized communication across multiple channels, including email, SMS, and in-app messaging. Founded in 2012, the platform is designed to scale with businesses of all sizes, from startups to large enterprises, enabling them to automate customer interactions and optimize messaging through data-driven insights. With over 7,400 brands using the platform, Customer.io has established a strong market position by offering a unified view of customer data and a flexible automation system that enhances user engagement and conversion rates.