Element
United Kingdom verifiedSecure messenger built on the open Matrix standard – open source, self-hostable, and used by the German armed forces, the French government and German healthcare.
Element is a messenger for chat, voice and video built on the open, decentralised Matrix protocol. Because the Matrix server (Synapse) can be self-hosted – right down to your own air-gapped data centre – data sovereignty stays entirely in your hands, independent of the vendor's location. That is exactly why Element/Matrix has become a flagship of European digital sovereignty: the German armed forces' BwMessenger (over 100,000 users), the French government messenger Tchap (over 300,000 staff) and the TI-Messenger in German healthcare (gematik) all rely on it. The Community edition is free under the AGPL; Enterprise (per seat) and the air-gapped Sovereign variant are offered individually and are certified to ISO/IEC 27001:2022, among others.
Note on ownership: Element (New Vector Ltd) is based in London and runs regional subsidiaries (Element Software GmbH in Germany, a SARL in France, an Inc in the US). It develops the open-source Element messenger on the open Matrix standard and maintains the matrix.org homeserver on behalf of the non-profit Matrix.org Foundation. Because you can run the server yourself, data sovereignty is independent of the company's location. The UK is a post-Brexit third country covered by an EU adequacy decision.
Strengths
- Open standard (Matrix), no lock-in – full federation and interoperability
- Self-hosting possible, up to air-gapped operation
- Open source (AGPL), independently auditable
- Top-tier references: German armed forces, French government, gematik
Weaknesses
- Headquartered in the UK (post-Brexit third country, but with an EU adequacy decision)
- Enterprise pricing only on request
- Self-hosting requires operational know-how
- Less polished than commercial consumer messengers
Best for
- • Public authorities and regulated sectors with sovereignty requirements
- • Organisations that need full data sovereignty and federation
Less suited for
- • Small teams without self-hosting resources who just want a simple chat app
Sovereignty Score & weitere Bewertungen
Sehr hohe Souveränität durch offenen Standard und Self-Hosting (Datenhoheit unabhängig vom Firmensitz); Referenzen bei Bundeswehr, franz. Regierung und gematik. Firmensitz UK (Drittland mit EU-Angemessenheitsbeschluss), Enterprise-Preise auf Anfrage.
The Sovereignty Score is an editorial orientation aid, not legal advice. How we rate.
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Sources & notes
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