Layoff
Feb 2023Employee-reported layoff at Mattermost that reportedly affected about 30 employees, or roughly 15% of the company; sourced from TrueUp.
SourceSecure Collaboration for Technical Teams
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
Mattermost is a remote-first, open-core secure collaboration and AI automation platform for mission-critical work, especially in government, defense, and critical infrastructure. Public sources describe it as founded in 2015 (though some directories list 2016), headquartered in Palo Alto, and built for self-hosted, private-cloud, and air-gapped deployments.
Primary product
Mattermost secure collaboration platform (Channels/Playbooks/Agents with enterprise and sovereign deployment options)
Founded
2015
Headquarters
2100 Geng Road, Suite 210, Palo Alto, California 94303, USA
Team size
51-200 employees
Work style
Remote
Industry
Software Development
Sub-industry