Discussions, telephony and video conferencing Citadel Team

The trusted alternative to consumer instant messaging solutions. 

Want to know more about Citadel Team?


Chat and file sharing

Send messages and share files without limit up to 200MB per file!

End-to-end encryption

To be activated when necessary: all your messages, documents, multimedia files and calls are encrypted.

Encrypted calls

With encrypted HD telephony functionality, make calls securely from anywhere.

Operated by Thales, hosted in France

The service is developed by Thales security teams and hosted on Thales and OVH infrastructures.

Administration console

Access the complete list of your users (enable or disable an option, deactivate an account, disconnect a terminal etc.)

No advertising or resale of data

Citadel Team is RGPD compliant. No information is exploited or resold. Citadel Team does not display any advertising.

Take back control of your data!



As easy to use as your personal communication applications, Citadel Team is compatible on all your terminals and offers all the standard features of instant communication.


Secure and sovereign

Operated by Thales and hosted in France, Citadel Team offers a high level of security and guarantees a model without data resale. Activated when needed, with the end-to-end encryption option, only your devices can read your conversations.



Deploy, control and administer your corporate fleet from the Citadel Team administration console, while guaranteeing the identity of your users via their professional email.



Increased team responsiveness, centralized conversations and file sharing in private or public personalized spaces for your projects.

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