Citadel Team

The secure messaging, audio & video conferencing solution

Defence
Cyber
Cybersecurity

Citadel Team is the secure professional communication solution, available in SaaS (on Cloud or on SecNumCloud 3.2), which encrypts your messages, audio conversations, and videoconferences.

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Features and Security

Discover the features of Citadel Team and learn more about the level of security the solution offers.

Secure Messaging

Citadel Team allows the creation of open chat rooms (up to 10,000 people) or private rooms by invitation for exchanging sensitive data (file transfers, messages, etc.) thanks to end-to-end encryption.
Secure Calls

Thanks to the encrypted HD telephony feature, you can make calls securely wherever you are. Your calls are end-to-end encrypted using robust cryptographic encoding techniques. This feature is compatible with Android or iOS devices using the “Push Notification” technologies of the Apple and Google platforms.
Audio and video conferencing

The solution allows you to easily join, start, or schedule a conference from any device. Both videoconferencing and audioconferencing offer unlimited sessions and durations. Please note that audio and video conferences are accessible to participants inside and outside your organisation.
Security & Privacy

Developed and operated by Thales, Citadel Team guarantees a high level of security and a model with no data resale.

Our commitment to security is ensured through secure SaaS hosting (Cloud, SecNumCloud 3.2), data sovereignty (hosting data in datacenters located in France), end-to-end encryption (AES 256) and two-factor authentication (MFA).

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Download Citadel Team

Our secure communication solution is an imperative for organisations operating in sensitive sectors.

Citadel Team for PC - Mac OS

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Citadel Team for PC - Windows

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Citadel Team for Mobile - iOS

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Citadel Team for Mobile - Android

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Data security must be a major concern for organisations, especially those in sensitive sectors. Whether it is messages, files, audio conversations, or video conferences, the exchanged data requires rigorous protection, both to ensure compliance with current regulations and to guarantee the confidentiality of strategic information.

Deployment & Administration

Thanks to the SaaS mode, Citadel Team is available for download. Registration takes less than 2 minutes using a professional email address—the only trusted information required.

Combining collaboration and usability, with Citadel Team you can access services from your desktop client (Mac/PC), web browser, and also from your smartphone (iOS/Android).

Finally, it is possible to quickly connect business services.

Citadel Team is available in a sovereign and secure environment, certified SecNumCloud 3.2.

Our secure messaging, audio and videoconferencing solution:

Meets the security and digital sovereignty needs of the public sector (public, parapublic organisations, OIVs, OSEs),
Ensures the highest level of sensitive data protection (ISO 27001-27017-27018, HDS, TISAX, CISPE),
Guarantees French-based support.

To ensure total confidentiality and separation between our clients, each organisation benefits from a dedicated infrastructure operated by Thales and hosted in France.

You are thus free to deploy, control, and manage your corporate fleet from the Citadel Team administration console: remotely disable devices, control access, and monitor the activity of your employees.

Each feature is designed with a focus on security and privacy. Our end-to-end data encryption capability is the assurance for your organisation that none of your exchanges, whether between internal or external collaborators, can be intercepted or hacked.

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Find out more in our white papers

Ercom's most recent white paper

Defence
Cyber
Cybersecurity

Hybrid work & Sensitive data: How can you ensure the safety of your employees working remotely?

Discover through this 'expert insight' how to secure your employees remotely.

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Discover our white papers on other cyber topics that might interest you

CISOs and CIOs: A strategic alliance to enhance cybersecurity

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Cybersecurity: How to naviguate the European regulatory landscape?

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Customer testimonials

Discover our most recent customer testimonials

Cédric Saudrais - Director of protection of the information at global level at Renault Group

Anne Girond, Director general of the Circle of Corporate Security Departement (CDSE)

What we really appreciate is the close contact we've had with the Citadel teams from the very beginning. This allows us to have regular interactions with them, to be kept informed about future product developments, to get answers to our questions, and to receive fast and effective support whenever an issue arises.

Cédric Saudrais - Director of protection of the information at global level at Renault Group

Discover all our testimonials