Sendbird Joins Unicorn Club as Mobile Communications Become Essential in the Lives of Billions of People Across the Globe Company raises $100 million in Series C at $1.05 billion valuation; Monthly active users and applications powered by Sendbird jump 3x SAN MATEO, Calif. AND SEOUL, Korea, April 6, 2021-- Sendbird, the leading mobile engagement & communication company across in-app chat, voice and video, today announced that it closed $100 million in Series C funding in an oversubscribed round led by STEADFAST Capital Ventures. STEADFAST Managing Director and Head of Venture Capital Karan Mehandru will join Sendbird’s board of directors.