Mattermost
European Communication Software
CommunicationOpen Source
Headquarters
Europe
Data Protection
GDPR Compliant
Data Residency
EU Servers
Company Size
Growing
About Mattermost
Open source collaboration platform. Self-hosted Slack alternative with enterprise features.
As a European company, Mattermost is fully GDPR compliant and stores all customer data within the European Union. Your data stays in Europe, protected by strict EU privacy laws and not subject to foreign government data requests like the US CLOUD Act.
Why Choose Mattermost?
100% European
Headquartered and operated in Europe with EU data centers
GDPR by Design
Built with privacy and data protection as core principles
No US CLOUD Act
Your data is not subject to US government access requests
European Support
Customer support in your timezone with local expertise
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