Communication
European team communication services
Work chat on servers governed by EU law
Replaces: Asana · Jira · Microsoft Teams · Slack · WhatsApp · Discord
A team communication service is company chat: channels per project or topic, direct messages, threads, file sharing and search across everything said so far. Most add calls, screen sharing, guest access for clients and integrations that post updates from other systems. It replaces a lot of internal email and becomes, in practice, the place where decisions are recorded.
Years of internal discussion, shared files and customer detail accumulate in one searchable archive, which is a serious thing to keep on another continent. Stackfield, Infomaniak kChat and Nextcloud Talk are European, and Nextcloud Talk can run on your own servers. A European alternative to Slack keeps that archive under GDPR, so check message export and retention settings on the way in.
European options
| service | Country | Hosting | Open source | Free plan | Status |
|---|---|---|---|---|---|
 mssgs |
 Netherlands |
EU hosted | — | ✓ | EU controlled |
 Stackfield |
 Germany |
EU hosted | — | — | EU controlled |
 Infomaniak kChat |
 Switzerland |
EFTA hosted | — | ✓ | EU controlled |
 Infomaniak Public Cloud |
Switzerland |
EFTA hosted | — | — | EU controlled |
 Nextcloud Talk |
Germany |
✓ | — | EU controlled | |
 Wire |
Switzerland |
— | — | EU controlled | |
 Element |
 Open source |
✓ | — | ||
 Mattermost |
Open source |
Self-hosted | ✓ | — | |
 Rocket.Chat |
Open source |
Self-hosted | ✓ | — |
mssgs
Group chat for teams and communities from the Netherlands
mssgs is a group chat app for friends, communities and teams, developed in the Netherlands. It is organised into servers with channels, alongside direct messages and voice calls. Built-in mini-games, custom bots, webhooks and support for MCP and AI agents extend what a server can do, and there are apps for iOS, Android, macOS, Windows, Linux and the web.
NetherlandsEU hostedFree planEU controlled
Stackfield
Encrypted team collaboration from Germany
GermanyEU hosted♻EU controlled
Infomaniak kChat
Swiss team chat from Infomaniak
SwitzerlandEFTA hostedFree plan♻EU controlled
Infomaniak Public Cloud
Swiss public cloud and virtual private servers
SwitzerlandEFTA hosted♻EU controlled
Nextcloud Talk
Open source video conferencing inside Nextcloud
GermanyOpen sourceEU controlled
Wire
End-to-end encrypted team messaging from Switzerland
SwitzerlandEU controlled
Element
Open source team chat built on Matrix
Open sourceOpen sourceSelf-hosted and open source
Open source projects you can run yourself. Not necessarily made in Europe, but nobody else holds your data.
Mattermost
Open source team communication you host yourself
Open sourceOpen source
Rocket.Chat
Open source team chat you host yourself
Open sourceOpen sourceServices without verified European control
Kept here for transparency, but excluded from the European options and totals. How we classify services →
Fleep
Team chat from Estonia
Estonia Ownership reviewed, controller unresolvedMattermost by Stackhero
Managed Mattermost chat from France
FranceEU hosted♻ Ownership reviewed, controller unresolved
Nozbe
Polish team communication and task app
PolandFree plan Ownership reviewed, controller unresolved
ginlo Business
Business messenger from Germany
Germany Ownership reviewed, controller unresolved
ginlo Private
Personal messenger from Germany
Germany Ownership reviewed, controller unresolved
Private Discuss
Team communication from France with video calls
FranceFree plan♻ Ownership reviewed, controller unresolved
