A strategic alliance at the service of digital sovereignty.
Since September 2025, Atos and Wimi have joined forces to meet a critical need: to offer large French and European organizations a real sovereign alternative to American collaborative suites.
Atos, a global leader in digital transformation and a European reference in cybersecurity, brings its recognized expertise in the deployment of technological solutions and the operational excellence of its Digital Workplace business line, supported by its service center in Nantes.
Wimi, a French collaborative suite with the French Tech 2030 label, brings 15 years of experience in developing sovereign solutions and an infrastructure built around cybersecurity, in the process of obtaining SecNumCloud qualification.
Together, we offer Workplace Sovereign: the first French collaborative solution that meets the requirements of the French State's “cloud at the center” strategy, while offering the functional richness and user experience expected by large organizations.
The expertise of a global leader
Positioned by Gartner® as a leader in outsourced digital workplace management services for nearly 10 years, Atos supports the largest organizations in their digital transformation.
With 70,000 employees in 67 countries, Atos guarantees secure implementation and local support from its Digital Workplace service center in Nantes.
European leader in cybersecurity, cloud and supercomputers, Atos brings its know-how in deploying secure solutions for the most sensitive sectors: defense, space, health, health, public sector.
Atos in figures
Workplace Souverain: the leading French collaborative suite
Workplace Sovereign combines the Wimi collaborative suite (labeled French Tech 2030, in process SecNumCloud) and the operational expertise of Atos to offer a 100% European solution without compromise.
- 100% sovereign: French infrastructure, immunity to extraterritorial laws, in the process of being qualified by SecNumCloud.
- Functionally complete: All the essential tools: Mail, Drive, Visio, Visio, Chat, Chat, Office Suite, Project Management, AI (Wimi Neo).
- Secured and accompanied: Advanced encryption, RGPD compliance, expert support from Nantes.
SecNumCloud in progress
100% French infrastructure
Expert support
OIV/OSE/NIS2 compliant
Use cases adapted to your critical challenges
Workplace Sovereign supports large organizations in their most sensitive projects.
Replace Microsoft 365 with a 100% European solution offering the same functional richness, without compromising on user experience or security.
Centralize and secure your critical documents with automatic versioning, multi-level validation and archiving in accordance with regulatory requirements.
Quickly activate your crisis units with secure real-time communication, protected sharing and guaranteed business continuity.
Sectors that trust us
Workplace Sovereign meets the requirements of the most sensitive organizations.
Ministries, government agencies and state services are deploying Workplace Sovereign to ensure sovereignty and compliance with the “cloud at the center” strategy.
Regions, departments and municipalities secure their exchanges and projects while controlling their data on a 100% French infrastructure and guaranteed reinforced sectoral obligations.
Vital operators and sensitive industries protect their strategic activities with a sovereign and resilient solution.
Health institutions and medical players protect patient data and sensitive research with a compliant and secure solution.
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“Wimi is a solution perfectly suited to collaboration in project mode. Its ease of handling and the flexibility offered according to uses convinced us. Covid-19 and the periods of teleworking have only amplified the need for such a solution to maintain exchanges and continue our projects.”
"Wimi nous permet de centraliser notre processus de création et de planification de contenus. La plateforme nous apporte une vision claire et centralisée de notre production. Je le recommande sans hésiter aux équipes qui veulent gagner en agilité et optimiser leur processus de création de contenus."
"Wimi nous permet de faciliter la communication entre le staff et les joueurs, de fluidifier le partage des données et d’accélérer la planification de nos évènements sportifs. Le budget est aussi très attractif au regard du périmètre fonctionnel, riche et ergonome couvert par la solution."
"Wimi est un outil sécurisé et sécurisant qui répond clairement aux besoins d’une profession réglementée par le secret professionnel. Travailler sur nos dossiers depuis la plateforme est devenu une évidence pour nous. Nous sommes bluffés par la facilité avec laquelle nos clients et partenaires adoptent la solution."
Your questions about the sovereign Workplace
What is Workplace Sovereign by Atos & Wimi?
Workplace Sovereign is a 100% European collaborative solution resulting from the strategic partnership between Atos and Wimi. It combines the Wimi collaborative suite (labeled French Tech 2030), which is in the process of being qualified. SecNumCloud) and the operational expertise of Atos in Digital Workplace.
This offer meets the needs of large French and European organizations: public sector, government agencies, sensitive companies (OIV, OSE) that are looking for a sovereign alternative to Microsoft 365.
Key benefits:
- 100% French infrastructure
- Not subject to extraterritorial laws (Cloud Act, Patriot Act)
- Expert support from the Atos service center in Nantes
- In line with the French State's “cloud at the center” strategy
What is the difference between Sovereign Workplace and Microsoft 365?
Workplace Sovereign offers functional richness equivalent to Microsoft 365 (Email, Drive, Video conferencing, Cat, Office Suite, Project Management, AI), with three major differentiators:
Sovereignty 100% French infrastructure, total immunity to American extraterritorial laws.
Safety: In the process of SecNumCloud qualification, reinforced encryption, native RGPD compliance.
Bracket: Support by Atos, Gartner® leader for nearly 10 years in Digital Workplace, with support from Nantes.
Workplace Sovereign is designed for organizations that refuse to choose between performance and sovereignty.
Is Workplace Sovereign in the process of qualifying SecNumCloud?
Yes, the Wimi platform that forms the basis of Workplace Souverain is in the process of being qualified SecNumCloud 3.2 by ANSSI. This qualification, expected in the first half of 2026, guarantees the highest level of security for cloud solutions for the public sector and critical infrastructures.
The Label SecNumCloud attests to compliance with the strict requirements of the ANSSI in terms of the protection of sensitive data, resilience and sovereignty. It is mandatory to meet the French State's “cloud at the center” strategy.
While waiting for the final qualification, Workplace Sovereign already relies on a sovereign infrastructure with state-of-the-art security standards.
What sectors use Workplace Sovereign?
Workplace Sovereign is deployed to organizations with the highest sovereignty and security challenges:
- Public administrations: ministries, government agencies
- Local authorities: regions, departments, municipalities
- Operators of vital importance (OIV): energy, critical industries
- Essential service operators (OSE): transport, space, infrastructure
- Health sector: health institutions, medical research
These organizations choose Workplace Souverain to guarantee control of their sensitive data, meet regulatory requirements (NIS2, DORA) and align themselves with the French and European digital sovereignty strategy.
Can I migrate from Microsoft 365 to Workplace Sovereign?
Yes, Atos and Wimi support your migrating from Microsoft 365 (or any other solution) to Workplace Sovereign with a proven methodology:
Phase 1 - Audit: Analysis of your current environment, identification of data and workflows to be migrated.
Phase 2 - Planning: Definition of the migration calendar, team training, technical preparation.
Phase 3 - Migration: Secure data transfer (emails, documents, calendars), configuration of workspaces.
Phase 4 - Support: User training, reinforced support during the first weeks, continuous optimization.
Atos guarantees a transition without business interruption, with dedicated support from its Digital Workplace service center in Nantes. The migration is planned according to your operational and regulatory constraints.
How much does Workplace Sovereign cost?
The tariff Workplace Sovereign depends on several factors:
- Number of users
- Desired functional scope
- Level of support (deployment, training, support)
- Additional services (migration, integrations, specific developments)
Atos and Wimi offer tailor-made pricing adapted to the needs of large organizations. Unlike American solutions, there are no hidden costs associated with compliance or data localization.
To get a personalized quote, contact us via the form or call our sales team. We will study your needs and offer you a detailed offer within 48 hours.
Move to sovereign and secure collaboration
Workplace Sovereign combines the technological excellence of Wimi and the operational expertise of Atos to offer your organization a 100% European alternative to Microsoft 365.