Tresorit
Tresorit is a Swiss-Hungarian encrypted cloud storage platform for businesses, headquartered in Zurich. Owned by Magyar Telekom (Hungary), it uses client-side zero-knowledge encryption, ensuring even Tresorit cannot decrypt stored files.
Brand Identity Data
HQ Country
Switzerland
HQ City
Zurich
Founded
2011
EU Headquartered
Yes
EU Manufactured
Yes
Ownership Type
subsidiary
Stock Exchange
Private
Tax Domicile
CH
Ultimate Parent
Magyar Telekom
Data Hosting
mixed
CLOUD Act Exposure
No ✓
AI Trains on User Data
no
GDPR Status
compliant
DSA Designation
na
Carbon Neutral
unknown
B Corp Certified
No
Supply Chain
opaque
Repair / Recycling
No
Ethical Certifications
None verified
Verified on July 22, 2026
Corporate Lineage
2011
Founded
Tresorit is founded in Switzerland by a team of cryptography experts.
2013
Product Launch
Official launch of the encrypted cloud storage service.
2021
Acquisition
Magyar Telekom (subsidiary of Deutsche Telekom) acquires a majority stake in Tresorit.
2023
Expansion
Continued expansion of enterprise focus with new data residency options.