Tresorit
✓ Verified by EU AltsEnd-to-end encrypted cloud storage for teams — a secure European alternative to Dropbox.
Overview
Tresorit builds cloud storage, privacy, and security software since 2011 and is listed with a Budapest, Hungary base. Its EU presence does not change its ownership: EU Alts has verified that Tresorit is owned by Swiss Post (Swiss Post Communication Services), Switzerland (Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021), and hosts customer data with Microsoft Azure in Ireland (default; Switzerland default for Swiss customers; other regions selectable on higher-tier plans), so it may still fall under the reach of the US CLOUD Act — worth weighing against Dropbox on this specific point.
Why European teams pick Tresorit
Teams in Europe still consider Tresorit for its cloud storage product and Hungary presence, operating since 2011, but unlike a fully EU-owned provider, Tresorit is owned by Swiss Post (Swiss Post Communication Services), Switzerland (Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021), and hosts customer data with Microsoft Azure in Ireland (default; Switzerland default for Swiss customers; other regions selectable on higher-tier plans) — so it does not fully avoid US CLOUD Act exposure the way some other alternatives to Dropbox do.
See more EU cloud storage tools or browse other startups from Hungary.
About
Tresorit is a Swiss-Hungarian end-to-end encrypted cloud storage provider founded in 2011, offering zero-knowledge file storage and sharing. All files are encrypted client-side before upload, meaning Tresorit never has access to your file contents. It provides desktop sync, mobile apps, secure share links, and team collaboration features. Tresorit stores data in data centres across Switzerland, Ireland, and the Netherlands under GDPR and Swiss data protection law. It is used by law firms, healthcare providers, and enterprises across Europe that need provably private cloud storage and secure document sharing. Tresorit is certified ISO 27001 and signs a GDPR DPA for all business customers.
Details
- Founded
- 2011
- Headquarters
- Budapest, Hungary
- Ownership
- Owned by Swiss Post (Swiss Post Communication Services), Switzerland (Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021)
- Hosting
- Microsoft Azure, Ireland (default; Switzerland default for Swiss customers; other regions selectable on higher-tier plans)
- CLOUD Act
- Exposed
- Verified
- 2026-07-31
- Last checked
- 2026-07-31
Categories
Compare with the US product you may be replacing
Tresorit is listed in a category that our US-product comparison pages cover. See every EU option side by side:
Other EU startups like Tresorit
- Proton Mail ✓ Verified by EU AltsSwitzerland — End-to-end encrypted email and productivity suite — a privacy-first alternative to Gmail.
- Padloc ✓ Verified by EU AltsGermany — Minimalist, open-source password manager — a German alternative to 1Password.
- Tuta ✓ Verified by EU AltsGermany — End-to-end encrypted email and calendar — a German privacy-first alternative to Gmail.
- TrustYourWebsite Netherlands — Automated GDPR, cookie-consent and accessibility scanner for EU and UK small business websites. Free risk score in minutes.
- Mullvad VPN ✓ Verified by EU AltsSweden — No-logs VPN with anonymous accounts — a Swedish privacy alternative to NordVPN and ExpressVPN.
- Cryptomator ✓ Verified by EU AltsGermany — Client-side encryption for your cloud files — a German open-source alternative to Boxcryptor.
Frequently asked questions
What does Tresorit do?
Tresorit is end-to-end encrypted cloud storage for teams — a secure european alternative to dropbox. It is listed under cloud storage, privacy, and security on EU Alts because its core functionality serves teams looking for a European cloud storage tool with EU data residency, typically as a switch away from Dropbox.
Is Tresorit GDPR compliant?
Tresorit is listed with a Budapest, Hungary base, but its recorded ownership is based in Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021, so EU jurisdiction is not assumed. However, EU Alts has verified that Tresorit is owned by Swiss Post (Swiss Post Communication Services), Switzerland (Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021), and hosts customer data with Microsoft Azure in Ireland (default; Switzerland default for Swiss customers; other regions selectable on higher-tier plans), which means — unlike a fully EU-owned provider — it may still be reachable under the US CLOUD Act, similar to Dropbox in that respect.
How do teams switch from Dropbox to Tresorit?
Teams evaluating a move from Dropbox to Tresorit should note: Tresorit is owned by Swiss Post (Swiss Post Communication Services), Switzerland (Switzerland/Hungary (Swiss legal entity, Hungarian founding/R&D roots); majority owned by Swiss Post since 2021), and hosts customer data with Microsoft Azure in Ireland (default; Switzerland default for Swiss customers; other regions selectable on higher-tier plans), so this switch narrows but may not fully close the US CLOUD Act gap. Weigh that against the cloud storage workflow fit before treating it as a complete Schrems II fix.
Where is Tresorit based?
Tresorit is headquartered in Budapest, Hungary. The company was founded in 2011. Its main website is https://tresorit.com.