PubNub is a real-time communication platform founded in 2010, providing developers with building blocks for in-app chat, live audience engagement, IoT device control, data streaming, and geolocation tracking. The company operates a global network of more than 15 data centers, supporting over 70 programming languages and environments. It has raised $130M in funding.
The platform processes over 3 trillion API transactions and streams more than 1 trillion messages per month, all with sub-100ms latency. It serves approximately 2,000 companies across 40 industries, reaching 330 million connected devices. Applications range from sports media, where it handles 212 million requests per minute, to gaming, with 35 million players engaged, and logistics, managing 137 million deliveries.
PubNub's technology underpins real-time use cases in sectors including healthcare, warehousing, telecommunications, software, real estate, and cloud storage. In healthcare alone, the platform connects 3.6 million patients each month. The company's core technical domains span real-time communication, API transactions, data streaming, IoT device control, geolocation tracking, and the management of a globally distributed infrastructure.