Do you trust your AI to beSecureSovereignPrivateCompliantGovernedAuditableAccurateEfficientSafeReady
We help your highly regulated organization make on-prem data secure, sovereign, governed and AI-safe, so you can accelerate AI transformation without your data ever leaving your control.
Our customers trust us.
1,000+ organizations run ProLion on their own hardware — in hospitals, banks, plants and public bodies that cannot send a single byte to anyone’s cloud.
Secure
Ransomware blocked in seconds.
1,000+ customers. 10 years. Attacks stopped at the data layer.
Sovereign
100% on-prem. Zero bytes to the cloud.
Air-gapped protection for banks, governments and insurers.
Private
10 billion+ files scanned. None leave your walls.
Sensitive data analyzed where it lives.
Compliant
1,500+ audits passed. Every year.
NIS2, DORA, GDPR. Proven, not promised.
Governed
200+ PB under control.
Every file, owner and permission mapped.
Auditable
Audit evidence in minutes, not weeks.
Every access and every change logged automatically.
Accurate
99.9% detection. Near-zero false positives.
Your team chases real threats, not noise.
Efficient
Live in 3 hours. Reports 70% faster.
No consultants. No months-long rollout.
Safe
Back online in hours, not 21 days.
Instant recovery from clean snapshots. No ransom paid.
Ready
AI-ready data in 30 days.
Classify, clean and secure before AI touches it.
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Making data secure, sovereign and AI-safe
Where your data lives
One Platform
Two Packages
ProLion DataDefense
For IT teams who need critical data up, recorded and recoverable.
- File visibility, who did what and when
- Ransomware containment in four seconds
- Single-file restore from snapshot
- Capacity, growth and hot/cold reports
- Permission insight and broken inheritance
- Four-eyes principle
- SIEM, SOAR and ITSM integration
- SSO via Entra ID, Okta, SAML, OIDC
ProLion DataGovernance
For security, compliance and AI teams who have to prove and control who reaches what.
- Access analytics — effective permissions
- Real-time permission audit log
- Activity Zones and quarantine
- Active Directory security
- Unlimited file activity retention
- SharePoint Online and OneDrive
- Classification of sensitive data
- Remediation of permissions and labels
Everything that touches your data goes through one layer.
Access
Your data, where it already lives
- NetApp ONTAP
- Dell PowerScale
- Windows File Server
- SharePoint and OneDrive
Most platforms tell you where the risk is. We also stop it.
A cloud DSPM
Data security posture management: the tools built for data in SaaS and cloud storage. They read your estate and run in the vendor's tenant.
It tells you where the risk is.
ProLion
The same reading of your estate, for the shares in your own building — plus the two things a report cannot do.
It tells you, stops it, and restores what was hit.
Know, protect and control your data — whoever you are
Pick your team and see what ProLion does for you.
Keep critical data available and recoverable
A restore that brings back a folder, not a lost weekend.
Shrink your exposure and stop an attack mid-flight
See exactly what’s reachable, cut it back, and prove it stays that way.
Put AI to work on your most sensitive data
The right permissions and guardrails for people and for agents, on-prem and under your control.
Customer Trust
“Without these solutions, I would feel less comfortable.”
OLVG, one of Amsterdam’s oldest and largest hospitals, needed to secure sensitive patient data and keep critical systems available for thousands of staff and patients. Real-time monitoring, instant failover and anti-ransomware defense turned that exposure into something the IT team can sleep through.
Watch the film
Protecting the data as close to the storage as it lives.
TFE uses ProLion to harden its file data against ransomware, to see what is actually happening to its files, and to secure the file environment itself. The film runs six minutes and is spoken in French.
Watch the film
“Products from ProLion are very user-friendly, and the data quality is stable.”
R-IT runs data centers for the Raiffeisen sector from Vienna, with around 1,000 staff across Austria, Slovakia and Slovenia. Measuring and billing a client’s storage used to mean a custom script and a database query every time, with no standard report to fall back on. ProLion turned that into reporting they can run, and cut the time it takes by 70 percent.
“I am really happy that these two containers have been set up here today at such impressive speed. This is the decisive step for the modernization and digitalization of our hospital. It couldn’t have gone any better.”
Klinikum Peine had no space for a redundant data center and no cheap way to build one. CANCOM delivered two high-security containers with a synchro-mirrored NetApp All-Flash MetroCluster across four active nodes, replicating to a third server room. ProLion monitoring sits on top of it: real-time detection and blocking of ransomware on the data itself, without agents on the clients.
“Thanks to the completely automatic intervention of the ClusterLion, downtime, a lot of remediation work, data loss, and a lot of working hours for the storage team were prevented.”
On a Sunday in spring 2022 an air-conditioning unit failed in one of the server rooms at the University of Bonn. The temperature rose until the room shut off its own electricity, taking the NetApp MetroCluster with it. ProLion saw the power go and started the failover to the second data center within seconds, so nothing went offline. It also held the affected cluster down until the room was repaired, which prevented a premature reboot.
Let’s solve your data challenges.
Connect with our engineers to find the right approach for your infrastructure.
Fits wherever your data already sits.
NetApp, Dell, Lenovo and Microsoft — read at the data layer itself, with no agent on the file server.
Show us the share nobody owns.
Tell us which systems you run and what you would like to see. An engineer gets back to you within one business day — someone who works with NetApp ONTAP, Dell PowerScale and Windows file servers every day.