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Store your documents

Store your corporate documents in a secure and sovereign cloud

A misplaced USB drive, a shared hard drive on a desk, a folder forgotten on a personal computer: improvised storage exposes your documents without anyone realizing it. Voltn (formerly NetExplorer) centralizes your files in an environment 100% hosted in France, with the security and governance of a true information system.

"With Voltn, we have significantly simplified the management of our technical documents. Our maintenance manuals are stored securely, with instant updates for our clients. The mobile app allows our teams to access documents on the go, which improves our day-to-day efficiency."
Smiling man with beard and earring wearing a yellow shirt sitting in a bright room with a window.
Romain Grosjean
Technical Consultant & Spare Parts at LEITNER France
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HDS certified (all 6 levels)
ISO 27001 & ISO 9001 certified
GDPR compliant by design
100% hosted in France

Secure document storage What exactly are we talking about?

Secure document storage means keeping files in a centralized, protected, and governed space: controlled access, encryption, backups, and traceability for every action.
Unlike a simple consumer cloud storage space, a solution designed for business combines file hosting with comprehensive governance.

What this means in practice:
Centralize documents in a space structured by folders, projects, or teams
Define precise access rights, on a per-person basis
Encrypt files, both in transit and at rest
Keep a version history and a secure recycle bin
Schedule retention and automatic purging rules
Maintain a complete audit log of every access or modification

What you gain with Voltn

Total centralization
Enhanced security
Access governance
Continuity and backup
Data sovereignty
All organizational documents gathered in a single space, structured by folders, projects, or departments.
Example
An SME consolidates contracts, invoices, and HR files previously scattered across multiple computers into a single space.
Systematic encryption and antivirus scanning protect every stored document, from upload to access.
Example
An accounting firm stores its client files with the certainty that no file can be opened without explicit authorization.
Seven levels of permissions allow you to precisely define who accesses what, and for what purpose.
Example
An HR department restricts access to personnel files to three specific individuals, without exposing them to the rest of the organization.
A secure recycle bin and immutable backup options protect your documents against accidental deletion or major incidents.
Example
An organization recovers a file that was accidentally deleted three weeks earlier, still available in the recycle bin.
Documents remain hosted in France on infrastructure operated by Voltn itself, beyond the reach of foreign laws.
Example
A public institution archives its administrative documents with the guarantee that they never leave French territory.
Man in office holding a large stack of file folders, hiding part of his face behind them.

A secure and certified cloud, hosted in Europe

Voltn brings together the most rigorous industry certifications for uncompromising security in a trusted, sovereign cloud.

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100% sovereign hosting

Voltn manages its own servers, hosted in France and Luxembourg, in data centers compliant with Tier 3+ and Tier 4 standards. Your data never leaves French territory and remains beyond the reach of the Cloud Act.

Advanced file protection

Every file is scanned and encrypted in real time. Integrated antivirus and ransomware detection protect your data at every step.

Certifications & compliance

Certification ISO 9001
Certification ISO 27001
Certification HDS, Hébergeur de Données de Santé
Label Numérique Responsable niveau 1
Conformité au règlement européen DORA
Conformité à la directive européenne NIS 2
Conformité au règlement européen eIDAS 2.0

Even more use cases

Every team uses company files differently: to centralize, co-edit, share, or prove compliance. Voltn meets each of these needs in a single, secure environment hosted in Europe.
1

Share files

Send and receive documents securely, both internally and externally, with full traceability for every exchange.
Discover the Sharing use case
2

Collaborate in real time

Create, edit, and co-author documents with your team without duplicating files or losing track of versions.
Discover the Collaboration use case
3

Compliance requirements

Meet your industry's regulatory requirements with sovereign hosting and recognized certifications.
Discover the Compliance use case
Discover our use cases
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Situations where Voltn makes the difference

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Centralizing team or department documents

Scenario
Contracts, invoices, project files: a department's documents are often scattered across various computers and email inboxes, lacking any common organization.
With Voltn
A single, structured space, accessible to the entire team based on defined permissions, with instant search.

Regulatory archiving of sensitive documents

Scenario
Some documents must be kept for several years to meet legal or industry requirements, without risk of loss or unauthorized access.
With Voltn
Programmable retention policies, systematic encryption, and a comprehensive audit log to prove compliance.

Business continuity after an incident

Scenario
Accidental deletion, hardware failure, or a cyberattack can threaten the availability of critical documents.
With Voltn
A secure recycle bin and immutable tape backups ensure data recovery, no matter the incident.

FAQ

Is Voltn compliant with the regulatory requirements of my industry?

Yes. Voltn is GDPR compliant and holds ISO 27001 and ISO 9001 certifications, with dedicated options such as HDS for health data.

How long can I keep my archived documents?

For as long as necessary. You set your own retention and deletion rules based on your legal or internal requirements.

Where is data stored with Voltn hosted?

Exclusively in France, on infrastructure operated directly by Voltn, beyond the reach of the Cloud Act and extraterritorial laws.

Can I control who has access to which documents?

Yes. Seven independent permission levels allow you to manage access folder by folder, team by team, or user by user.

Are my stored documents backed up in the event of an incident?

Yes. A secure recycle bin keeps your deleted files for as long as you choose, and an immutable tape backup option protects your critical documents.

What is the difference between basic cloud storage and a solution like Voltn?

Standard storage solutions simply host your files. Voltn adds comprehensive governance: granular access rights, systematic encryption, version history, and full audit trails for every action.

You could keep all your documents on a floppy disk.
Vintage office chair with a pile of folders and a beige corded telephone, handset off the hook on red carpet.

But let's be honest, our cloud-based file storage and sharing solution is much easier.

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