Open source collaboration platform for mission-critical operations
Mattermost is an open source messaging and workflow platform that supports on-premise, private cloud, and air-gapped deployments. It is designed for organizations requiring strict data sovereignty, such as defense, government, and critical infrastructure teams.
No migration guide is currently listed for this service.
Significant foreign legal exposure risk
Significant foreign ownership or control risk
More dimensions coming soon
Last verified: 22/01/2026
A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.
Retrieved 22/01/2026, confidence 100%.
Headquartered in Palo Alto, California
Retrieved 30/01/2026, confidence 95%.
Mattermost is headquartered at 530 Lytton Avenue, Suite 201, Palo Alto, California, CA 94301
Retrieved 30/01/2026, confidence 95%.
Mattermost is headquartered at 530 Lytton Avenue, Suite 201, Palo Alto, California, CA 94301
Retrieved 30/01/2026, confidence 95%.
Mattermost is headquartered at 530 Lytton Avenue, Suite 201, Palo Alto, California, CA 94301