Secure public sector data in a sovereign cloud.
Centralize, share, and protect your administrative documents in a French-hosted environment that is GDPR-compliant and immune to extraterritorial legislation.
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The public sector is facing critical challenges.
Civil records, social files, public procurement, and official deliberations: government agencies manage some of the most sensitive data in the country. Voltn (formerly NetExplorer) hosts this information in a sovereign cloud built for maximum security.
Protecting citizen data
Digital sovereignty
Increase in cyberattacks
Exchanges between multiple stakeholders
Strict regulatory compliance
GDPR
The Voltn sovereign cloud processes its clients' personal data only within the scope of the services provided. Individuals authorized to handle this data are subject to a legal obligation of confidentiality.
It guarantees
Who is affected?
Risks of non-compliance
ISO 27001 certification
ISO 27001 certification confirms an audited and proven information security management system. At Voltn, it covers the entire platform, from the data center to the software.
It guarantees
Who is affected?
Risks of non-compliance
NIS2
The European NIS 2 directive strengthens cybersecurity requirements for essential and important entities, including public administrations. Voltn aligns with these requirements to secure the entire hosting chain.
It guarantees
Who is affected?
Risks of non-compliance
eIDAS 2
The eIDAS2 regulation governs digital identity and electronic signatures in Europe. With Voltn Sign, your mandates, leases, and sales agreements are signed within a legally recognized framework.
It guarantees
Who is affected?
Risks of non-compliance
HDS
The Health Data Hosting certification confirms Voltn's compliance with the requirements for hosting personal health data. It covers all six activities in the framework, from the data center to the software.
It guarantees
Who is affected?
Risk of non-compliance
- Data encryption and antivirus protection
- • Ransomware and intrusion detection
- ISO 27001 and ISO 9001 certifications
- GDPR and NIS2 compliance
- Hosting in France
- Protection against extraterritorial legislation
- Granular access rights
- Complete action history
- Controlled sharing between departments and partners
- Real-time document co-editing and approval
The pillars of Voltn
Solutions tailored to your needs
Voltn Share secures your external document exchanges. Voltn Workspace centralizes storage and collaboration across your departments.
External file sharing
Send files without size or format limits
Secure upload portals
Password or SMS code protection
Full traceability of all exchanges
Directory integration (SSO / Active Directory)
The enterprise file platform
Access rights management and auditing
Real-time co-editing
Document approval
Exportable event logs
Anti-deletion trash and versioning
Concrete use cases in the public sector
City Hall
Civil registry records, urban planning documents, municipal council deliberations: a town hall centralizes sensitive documents while exchanging information daily with citizens, service providers, and state agencies. Supporting documents arrive by email, files circulate as attachments, and no one knows which version is the official one anymore.
Voltn brings order: a single space, controlled access, and tracked exchanges from submission to archiving.
Local authority
Departments, regions, metropolitan areas, and inter-municipal authorities: local governments manage projects that involve numerous departments, elected officials, and external partners. A development project involves design offices, construction companies, and several internal departments, each with different access requirements.
Voltn structures these exchanges: each participant sees only what they need to see, all data remains hosted within France, and the local authority maintains an overview of what was shared, by whom, and when.
State public institution
Agencies, state operators, and chambers of commerce handle strategic, economic, or scientific data subject to strict sovereignty requirements. Transferring this data to a cloud subject to the Cloud Act exposes it to extraterritorial access requests—a risk no supervisory body can accept.
Voltn guarantees hosting exclusively in France, operated by a French company, with strong authentication and complete traceability for every exchange with ministries and partners.
complete traceability
CCAS & social services
CCAS and social services manage files involving sensitive personal matters: family situations, financial resources, and sometimes health data. This information circulates between social workers, partner organizations, and institutions, all under a strict obligation of confidentiality.
Voltn provides an HDS-certified framework for these exchanges: every file is encrypted, every access is justified by specific permissions, and every consultation is logged.
HDS and GDPR compliance
What about other sectors?
Education
Non-profits and NGOs
Banking and insurance
Rest assured, your data will never be exposed.
96% of our clients recommend us
Laurent Grifeille
IoT Connected Equipment Project Manager, Conseil départemental de la Haute-Garonne
“To secure and centralise the data from our connected devices, we chose Voltn for its reliability and its 100% sovereign storage. The solution meets our security needs with hosting in France, guaranteeing optimal protection of our sensitive data.”
FAQ
How do you migrate local community data to Voltn?
A dedicated project manager oversees the migration, trains your administrators, and supports your staff. Our France-based support team remains available throughout the entire deployment process.
What documents can a town hall store and share with Voltn?
All types of administrative documents: civil registry, urban planning, council resolutions, public procurement, and social files, with no limits on size or format.
Is Voltn GDPR and NIS 2 compliant?
Yes. Voltn is GDPR compliant, aligned with NIS 2 requirements, and ISO 27001 and ISO 9001 certified. SecNumCloud qualification is currently in progress.
Where is the data hosted?
Exclusively in France, in Tier 3+ and Tier 4 compliant data centers. No data is transferred outside the European Economic Area.
Can a French government agency use an American cloud provider?
The "Cloud at the Center" doctrine recommends that government agencies use hosting protected from extraterritorial legislation such as the Cloud Act. Voltn hosts all data in France, on infrastructure owned and operated by a French company.
But let's be honest, our cloud-based file storage and sharing solution is much easier.