Teamwire vs Slack
Considering a switch from Slack to a European alternative? Teamwire offers full GDPR compliance and EU-only data hosting without the legal uncertainties that come with US-based services. Here's how they compare on features, pricing, and data protection.
Quick Overview
Teamwire
EU- Headquarters
- Munich, DE
- Pricing
- From €3/mo
- Open Source
- No
Slack
USSlack is a business messaging and collaboration platform owned by Salesforce that organizes conversations into channels, enabling teams to communicate and share files in real time.
The Case for Teamwire
- Teamwire stores all data exclusively in Germany, under European jurisdiction. Unlike Slack, which is subject to the US CLOUD Act and FISA Section 702, Teamwire cannot be compelled by foreign governments to hand over your data.
- Teamwire offers a Data Processing Agreement (DPA) that is fully aligned with GDPR Article 28. There is no legal ambiguity about data transfers or adequacy decisions — your data processor is European, and the law that governs it is European.
Why Switch to Teamwire?
Concerns with Slack
- US CLOUD Act jurisdiction (owned by Salesforce)
- Message content scanned and indexed on US servers
- Data shared with third-party app integrations by default
- No end-to-end encryption for messages
Teamwire Compliance
GDPRISO 27001DPA
- Headquarters
- Munich, DE
- Data Centers
- DE
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Categories
Teamwire vs Slack — FAQ
Is Slack GDPR compliant?
Slack may offer GDPR compliance features and EU data residency options, but as a US-headquartered company, it remains subject to the US CLOUD Act and FISA Section 702. These laws can compel US companies to hand over data regardless of where it is stored. The EU-US Data Privacy Framework provides some safeguards, but its predecessors (Safe Harbor and Privacy Shield) were both invalidated by the European Court of Justice. Teamwire, as a European company, is not subject to these US laws at all.
How does Teamwire compare to Slack in features?
Teamwire offers End-to-end encryption, Group messaging, Status messages, File sharing, and 4 more features. While Slack's ecosystem may be larger due to its market position, Teamwire covers the core functionality that most teams need. The trade-off is typically between breadth of integrations (Slack) and data sovereignty with regulatory certainty (Teamwire).
Can I migrate from Slack to Teamwire?
Yes. Most European software providers, including Teamwire, offer migration tools or documentation to help you transition from US-based services. Under GDPR Article 20, you have the right to data portability — meaning Slack must provide your data in a machine-readable format. The migration process varies in complexity depending on your data volume and integrations, but for most teams it can be completed within a few days to a few weeks.