Sendbird

Sendbird is a communications infrastructure company founded in 2013 by John S. Kim and Jaewoong Lee, headquartered in San Mateo, California. The company provides APIs and SDKs that allow developers to embed chat, voice, video, and AI-powered messaging features into mobile and web applications without building the underlying infrastructure from scratch.

Sendbird's core products include a chat API platform, a customer support messaging product, and more recently an AI chatbot and agent platform aimed at automating customer interactions. The platform is used across industries including healthcare, marketplace, on-demand delivery, and financial services. Customers have included DoorDash, Hinge, Paytm, and Carousell, among others. The company positions itself as a backend-as-a-service provider for in-app communications.

Sendbird raised a $100 million Series C round in 2021 led by SOFINA and Tiger Global Management, bringing its total funding to approximately $220 million and its valuation to $1 billion at that time. The company has offices in San Mateo, New York, London, Seoul, and Singapore, and employs several hundred people globally.