Best GDPR-Compliant Cloud Storage of 2026.
For European businesses, GDPR compliance means data residency, signed DPAs and — increasingly — zero-knowledge encryption to satisfy transfer-mechanism risk. Two providers stand out for 2026.
Who this guide is for
European businesses and any organisation handling EU personal data.
Recently updated
Last editorial review · July 2026Since our last review cycle:
- •Tresorit— Review refreshed
- •Proton Drive— New review published
Quick comparison
Filter the shortlist below by plan, audience or platform. Ratings, pricing and affiliate availability come straight from our master registry.
| Tool | Rating | Free plan | From | Best for | Affiliate | Actions | |
|---|---|---|---|---|---|---|---|
| Tresorit | 8.5* | No | From $11.99/user/mo | Regulated businesses needing zero-knowledge encrypted file collaboration with GDPR, HIPAA-suitable and ISO 27001 controls. | Yes | Read reviewVisit site → | |
| Proton Drive | 8.8* | Yes | Free / from $3.99/mo | People who want encrypted Dropbox/Drive alternative from a privacy-first company. | Yes | Read reviewVisit site → |
Top recommendations
Best pick by use case
Value for money
Proton Drive is dramatically cheaper for SMBs; Tresorit is the enterprise pick when procurement wants a longer paper trail.
Final verdict
Enterprises → Tresorit. SMBs → Proton Drive for Business.
Quick buying advice
The right pick depends on your budget, team size and platform. Here's the fastest path to a decision.
FAQ
Are US-hosted providers GDPR-compliant?+
They can be, but transfer mechanisms and provider access are ongoing risk areas. Swiss and EU zero-knowledge providers sidestep most of these debates.
Related comparisons
Head-to-head deep dives on the tools featured in this guide.
Related reviews
End-to-end encrypted cloud storage from the Proton suite.
Editor's Notes
We start with our full database of 153+ reviewed tools, filter for the category, then apply hands-on testing weighted by ease of use, value for money, speed, accuracy and ROI. Only tools we would deploy for our own work make the shortlist.
Each tool is rated /10 across five criteria. The final rating is the weighted mean, with ROI and accuracy weighted higher for finance workflows. Scores are refreshed on every review cycle and are independent of any affiliate relationship.
Every tool is tested on a real book of business with live bank feeds, sample invoices, and a small vendor list. We reconcile a month of transactions end-to-end before scoring.
Some links on this page are affiliate links. We may earn a commission if you sign up. Rankings and scores are editorial and are never influenced by affiliate rates. See our affiliate disclosure.
July 2026 · Reviewed by The Tool Money Lab Editorial Team
September 2026
Updated quarterly. Editorial ratings are independent of any affiliate relationship.