SendBird Series B Reaches $102 Million After Extension to Capitalize on Global Demand for In-App Messaging Company continues to expand, adding offices in Singapore, London, and Bengaluru as SendBird surpasses 1 billion messages per month SAN MATEO, Calif., May 6, 2019-- SendBird, the fully customizable chat and messaging API service for mobile and web applications, today announced that it has raised an additional $50 million, bringing its total Series B funding round to $102 million. The company extended the round in order to meet the rapidly growing global demand for in-app user-to-user messaging.