European Team communication Alternatives

France EU

Open-source collaboration suite developed by French company Linagora. Combines Matrix-based messaging, cloud drive, mail, and calendar in one platform. EU-hosted and self-hostable.

Replaces: Slack , Google Workspace , Microsoft 365 , Dingtalk

Germany EU

German all-in-one collaboration platform combining team chat, project management, video conferencing, and document editing. All data stored exclusively in Germany with end-to-end encryption. ISO 27001 certified. Used by 10,000+ companies.

Replaces: Slack , Microsoft Teams , Discord , Dingtalk

Switzerland EFTA

Swiss end-to-end encrypted messaging and collaboration platform for enterprise and government use. Backed by Schwarz Group (Lidl/Kaufland), hosted in the EU, and used by security-conscious organisations across Europe.

Replaces: Imessage , Slack , Microsoft Teams , Whatsapp , Wechat , Dingtalk

United Kingdom Europe

European secure communications platform built on the open Matrix protocol. Used by NATO, the EU, French and German governments, and 47M+ users across 80,000+ deployments. Self-hostable with full end-to-end encryption.

Replaces: Imessage , Slack , Microsoft Teams , Discord , Whatsapp , Wechat , Dingtalk