Best European Team Messaging & Email Software

Team messaging platform built on the open Matrix protocol with end-to-end encryption and federation.

Encrypted business messenger from Switzerland requiring no phone number or email address to register.

End-to-end encrypted suite from Switzerland offering email, calendar, cloud storage, documents, password manager, and VPN.

German open-source self-hosted file sync, sharing, and collaboration platform used by European governments.

French encrypted messenger certified by ANSSI, mandated for French government communications since 2023.

German encrypted messenger for public-sector agencies and enterprises with 1.3 million active users.

Encrypted team messaging and video conferencing application operated by Thales, hosted in France.

French collaboration platform combining team chat, video conferencing, and document sharing for organizations.

German business messenger for government agencies and enterprises with data hosted exclusively in Germany.

End-to-end encrypted messaging and video calling platform for businesses, headquartered in Berlin.

Swiss-hosted collaboration suite with email, cloud storage, document editing, team chat, and video conferencing.

Email, calendar, cloud storage and office suite hosted on own servers in Berlin, Germany.

Encrypted email suite with calendar, contacts, documents and group workspaces, hosted in Belgium.

End-to-end encrypted email, calendar and contacts service hosted on own servers in Germany.