OneSignal is a software company that provides push notifications and in-app messaging services to mobile and web applications. The company was founded in 2012 by George Deglin and Long Vo. OneSignal's platform allows developers to send targeted messages to users based on their behavior and preferences. The company has over 1 million registered developers and delivers over 8 billion messages per day. OneSignal has raised over $34 million in funding from investors such as SignalFire, Rakuten Ventures, and Y Combinator.