Founded in 2016, Mattermost’s open source platform powers over 800,000 workspaces worldwide with the support of over 4,000 contributors from across the developer community. The company serves over 800 customers, including Samsung, Nasdaq, SAP, European Parliament, and the United States Air Force, and is backed by world-class investors including Redpoint, YC Continuity, Battery Ventures, and S28 Capital.