Secure your real estate documents in a sovereign cloud.
Centralize, share, and protect your mandates, leases, plans, and sales files in an environment hosted in France, from the first contact to the final signature.
Real estate professionals face critical challenges.
Payslips, tax notices, ID documents, floor plans, and inspection reports: real estate files are packed with sensitive personal data and large documents. Voltn (formerly NetExplorer) hosts them in a sovereign cloud designed to keep them safe.
Customer data protection
File sizes and formats
Multiple stakeholders
Fraud and cyberattacks
Regulatory compliance
GDPR
The Voltn sovereign cloud processes its clients' personal data strictly within the scope of the services provided. Personnel authorized to handle this data are bound by a legal obligation of confidentiality.
It guarantees
Who is affected?
Risks of non-compliance
ISO 27001 standard
The ISO 27001 standard 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 this for?
Risk in case of non-compliance
ISO 9001 standard
ISO 9001 certification confirms Voltn's rigorous organization in meeting client needs. It demonstrates a commitment to service quality and continuous improvement.
It guarantees
Who is this for?
Risk 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
The Responsible Digital label
The Responsible Digital label certifies Voltn's commitment to digital sustainability. This aligns with the growing environmental requirements of the real estate sector.
It guarantees
Who is affected?
Risk of non-compliance
- Data encryption and antivirus protection
- Protection against intrusions and data leaks
- ISO 27001 and ISO 9001 certifications
- GDPR compliance and eIDAS signatures
- • Hosting exclusively in France
- Protection against extraterritorial laws
- • Granular permissions by property or agency
- Full activity history
- Controlled sharing with clients, notaries, and partners
- Real-time co-editing and approval
The pillars of Voltn
Solutions tailored to your needs
Voltn Share secures your document exchanges with clients and partners. Voltn Workspace centralizes your files and team collaboration.
External file sharing
Send files without size or format limits
Secure upload link
Password or SMS code protection
Full audit trail of all activity
Custom portal branded to your business
The enterprise file platform
Advanced access rights management
Real-time co-editing
Version history and anti-deletion trash bin
Mobile app
Outlook, Teams, and Google connectors
Concrete use cases in real estate
Real Estate Agency
Mandates, sales files, rental applications: an agency is constantly collecting and circulating sensitive documents between sellers, buyers, tenants, banks, and notaries. Supporting documents arrive by email, pile up in inboxes, and every uncontrolled transfer exposes personal data. Voltn structures the workflow: a submission link for each file, automatically categorized documents, and tracked, time-limited sharing, right up to the electronic signature of the sales agreement.
protected client data
Real Estate Development
A real estate project brings together architects, engineering firms, contractors, banks, and sales teams for years. Plans are heavy, versions pile up, and a versioning error on a construction drawing is costly. Voltn centralizes project documentation: every stakeholder accesses their specific scope, every document maintains its version history, and large files are shared via secure links rather than compressed attachments.
full traceability
Property Management & Leasing
General meeting minutes, capital calls, leases, move-in/move-out reports, work estimates: property management generates a massive volume of documents shared with hundreds of co-owners and tenants. Every document request ties up a manager, and every email sent further disperses information. Voltn provides spaces organized by building or unit: documents are accessible to the right people, exchanges are tracked, and leases are signed electronically with Voltn Sign.
GDPR compliance
Real Estate & Investment
Asset disposals or fundraising require sharing strategic documents (leases, rent rolls, technical audits, financial data) with potential buyers and their advisors. These exchanges demand a strict framework: named access, tracked consultation, and guaranteed confidentiality. With Voltn and its DataRoom, you open a secure space for the duration of the due diligence, know exactly who viewed what, and close access once the deal is finalized.
full access control
What about other sectors?
Banking & Insurance
Rest assured, your data will never be overdrawn.
Legal
Consulting
96% of our clients recommend us
Philippe LECOCQ
Chief Information Officer at Louis De Waele
“In construction, we exchange a great many documents with partners and subcontractors. We chose Voltn for its simplicity, its user-friendly interface and its responsive support. The platform is fast, flexible, easy to use, and accessible on smartphones and tablets.”
FAQ
Does Voltn integrate with real estate agency tools?
Yes. Native connectors for Outlook, Teams, and Google allow you to send and receive files without leaving your email, and an API enables integration with your business software.
Where is the data hosted?
Exclusively in France, in data centers that meet Tier 3+ and Tier 4 standards. No data is transferred outside the European Economic Area, keeping it beyond the reach of the Cloud Act.
Can a lease or a sales agreement be signed electronically?
Yes. Voltn Sign allows you to have mandates, leases, and sales agreements signed in compliance with the European eIDAS regulation, without ever leaving the platform.
How can you securely collect documents for a rental or sales application?
Using a secure upload link: your applicants and clients can submit their supporting documents in a dedicated space without needing to create an account. Each file is scanned for viruses and automatically filed in the correct folder.
How can you share large-scale plans and diagnostics with your partners?
Using a secure Voltn Share link, with no limits on size or format. Plans, 3D models, HD photos, and videos are encrypted during transfer, with full traceability for all views and downloads.
But let's be honest, our cloud-based file storage and sharing solution is much easier.