Team Messaging
Team messaging platforms provide persistent chat channels for workplace communication, replacing email for fast-moving conversations. European alternatives to Slack exist with on-premise and EU-hosted deployment options. Differentiation centers on threading model, search quality, integration ecosystem, and support for federation between separate instances.
🇩🇪
Delta Chat
Freiburg
Free (open-source)
Free
Open-Source
Decentralized
Email-Based
German
🇬🇧
Element
London
$5/user/mo
Free
GDPR
Open-Source
End-to-End Encryption
🇬🇧
SimpleX Chat
London
Free (open-source)
Free
Open-Source
No User IDs
Privacy
Decentralized
🇩🇪
Stackfield
Munich
€5.00/user/mo
GDPR
Encrypted
German
Channels
🇩🇪
Stashcat
Hannover
Contact sales
GDPR
German
Government
Secure
🇩🇪
Teamwire
Munich
Contact sales
GDPR
German
Enterprise
Push-to-Talk
🇨🇭
TeleGuard
Egnach
Free
Free
Swiss
Privacy
No Phone Number
Swisscows
🇨🇭
Threema
Pfäffikon
CHF 2.00/mo
E2E Encryption
Swiss
No Phone Number
Privacy
🇫🇷
Twake
Toulouse
Free
Free
Open-Source
French
Matrix
GDPR
🇨🇭
Wire
Zug
€5.83/user/mo
Free
GDPR
End-to-End Encryption
Swiss Privacy