European alternatives to
Slack
Team messaging and collaboration platform, acquired by Salesforce in 2021.
Slack Technologies LLC · Outside Europe
About Slack
- Company
- Slack Technologies LLC · Salesforce Inc.
- HQ
- United States
- Zone
- Outside Europe
Key concerns
Non-European ownershipSubject to US CLOUD Act
#1
Wire
90 · Certified EuropeanSwiss 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.
Freemium · from Free Free tier Open source EFTA
Looking for all European Team communication alternatives? Browse the full list →
Did you know? Storing data on European servers does not protect you from US law if the company is American-owned.
Why avoid United States-owned services?
CLOUD Act
Allows US authorities to compel American companies to hand over data stored anywhere in the world.
FISA Section 702
Permits mass surveillance of non-US persons' data held by US tech providers, without a warrant.
GDPR vs US law
Transferring personal data to US companies may conflict with EU data protection rules under GDPR.