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Collaboration Platform

Nextcloud

German open-source Microsoft 365 alternative for sovereign teams.

ThinkDoCare EU · GermanyAI capabilities
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Overview

Self-hosted file sharing, collaboration, mail and office — used by EU governments and large enterprises for full sovereignty.

Compliance & security

ISO 27001GDPRSchrems II safeBSI C5
Data residency
Self-host or EU partners
Headquarters
Stuttgart, Germany
Hosting provider
Self-host / EU providers
GDPR posture
Friendly
What each certification means
  • ISO 27001: International standard for information security management systems (ISMS).
  • GDPR: Operates under EU General Data Protection Regulation as data processor.
  • Schrems II safe: No reliance on US data transfers; data stays inside the EU/EEA.
  • BSI C5: German federal cloud computing compliance criteria (BSI C5).

Certifications self-reported by vendor. Always verify current status during procurement.

Top features

Files
Talk
Mail
Office
AI assistant

Pros

  • Full sovereignty
  • Open source

Cons

  • Self-hosting effort

AI capabilities

  • Local AI assistant

Integrations

  • Onlyoffice
  • Collabora
  • Outlook

Use cases

  • File sharing
  • Collaboration
  • Sovereign workspace

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