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OneSignal
San Mateo, California, United States · Founded 2014
201-500 employees · $65M
Sourced & current · updated May 13, 2026Website
OneSignal is a leading customer engagement platform that enables businesses to send targeted push notifications, in-app messages, email, and SMS. It helps developers and marketers engage their users across multiple channels to improve retention and drive growth for their applications and websites.
Where they sit
Stack tier: Infrastructure & Data (B)
Marketing AutomationCustomer EngagementMobile Marketing
Leading provider of omnichannel customer engagement solutions with strong presence in mobile push notifications