# Sendbird

> Sendbird is a San Mateo-based communications platform that started as a chat SDK for apps and has become an omnichannel AI agent platform. Its APIs power messaging, voice, video, and AI agents inside more than 4,000 apps, including DoorDash, Reddit, Match Group, Noom, and Yahoo Sports, reaching roughly 6 billion users and routing 7 billion conversations a month.

- **Founded:** 2013
- **Headquarters:** San Mateo, California, United States
- **Founders:** John S. Kim (Co-founder & CEO), Brandon Jeon (Co-founder), Harry Kim (Co-founder & CTO), Kevin Yoo (Co-founder)
- **Team size:** ~290 employees
- **Products:** Chat API & SDK, Calls, Business Messaging, AI Agents, Voice AI
- **Notable:** Reached unicorn status in April 2021 with $1.05B valuation, Powers 7 billion monthly conversations across 4,000+ apps, Named to Forbes Cloud 100 multiple years running

## Products & services

- **Chat API & SDK** — Drop-in messaging for mobile and web apps with group chats, 1:1, moderation, and presence.
- **Calls** — Voice and video calls embedded into apps with quality scoring and event webhooks.
- **Business Messaging** — Outbound proactive messages over SMS, WhatsApp, KakaoTalk, and in-app channels.
- **AI Agents** — Conversational AI for support and sales with human handoff, Salesforce integration, and a no-code agent builder.
- **Voice AI** — Voice automation that handles real, messy conversations across phone and embedded channels.
- **Desk** — Helpdesk built around live chat for customer support teams.

## Achievements

- Reached unicorn status in April 2021 with $1.05B valuation
- Powers 7 billion monthly conversations across 4,000+ apps
- Named to Forbes Cloud 100 multiple years running
- Y Combinator W16 graduate that scaled to nine-figure ARR

## Latest updates

- **2025-08** — Launched Sendbird Voice AI with omnipresent orchestration across voice, SMS, email, web, and in-app chat.
- **2024-02** — Released AI Chatbot-powered Salesforce Connector.
- **2023** — Pivoted product narrative from chat platform to omnichannel AI agent platform.
- **2021-04** — $100M Series C at $1.05B valuation.

## Links

- Website: https://sendbird.com
- LinkedIn: https://www.linkedin.com/company/sendbird
- Twitter/X: https://twitter.com/sendbird
- GitHub: https://github.com/sendbird
- YouTube: https://www.youtube.com/@Sendbird
- Instagram: https://www.instagram.com/sendbird/
- Facebook: https://www.facebook.com/sendbird

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Profile page: https://yespress.io/sendbird
Published by YesPress — https://yespress.io
Last updated: 2026-05-23