Register No. 095
Is tresorit European?
Yes. tresorit is under verified European control.
Tresorit is wholly owned by Swiss Post, which is wholly owned by the Swiss state. Switzerland counts as Europe under this register's rules.
Latest
Nothing new on file since the check on 30 October 2026. Seen news about tresorit? Send it with a source.
- Controlled by
- Swiss Post (Die Schweizerische Post AG), owned by the Swiss Confederation
- Control sits in
- Switzerland
- Legal entity
- Tresorit AG
- Seat
Zurich, Switzerland- Founded
- 2011
- Last checked
About tresorit
Tresorit offers end-to-end encrypted cloud storage, file sharing and file transfer for individuals and organisations. The company is registered in Zurich, Switzerland, and has subsidiaries in Budapest and Munich. Its customers include small businesses, public authorities and healthcare organisations.
Ownership
Swiss Post bought a majority of Tresorit in July 2021. Swiss Post's 2025 annual report lists Tresorit AG, Zurich, as a group company with a 100% equity interest at the end of both 2024 and 2025, plus Tresorit Kft. (Budapest) and Tresorit GmbH (Munich). Swiss Post Ltd is 100% owned by the Swiss Confederation.
Evidence 5
- Swiss Post Annual Report 2025 (PDF), list of group companies: Tresorit AG 100%; Swiss Post owned by the Confederationgeschaeftsbericht.post.ch ↗
- Swiss Post press release (2021): Post übernimmt Mehrheit an Tresoritsite.post.ch ↗
- Zurich commercial register extract: Tresorit AG, CHE-349.825.210zh.chregister.ch ↗
- Tresorit privacy policy: services provided by Tresorit AG, Zurichtresorit.com ↗
- Tresorit: About us (founded 2011)tresorit.com ↗
Sources were opened and read on the date of the check. Registers and websites change; if one of these no longer says what we cite it for, tell us.
Product
tresorit
tresorit.com ↗End to end encrypted file storage from Switzerland
Tresorit does not run its own data centres: encrypted content is stored on Microsoft Azure, by default in Ireland, or in Swiss data centres for Swiss customers, with a choice of residency region on the larger plans. It is a European alternative to US cloud storage for organisations whose first requirement is that the provider cannot read the data.
- Instead of
- Dropbox and Google Drive
- Suits
- Organisations storing confidential documents
Operations
Who runs the parts of the service we could observe from outside, checked 4 September 2026. A provider's control can differ from where its servers stand.
| Part | Provider | Provider control | What we saw |
|---|---|---|---|
| Public website | Cloudflare | Not European | A 199.60.103.4, 199.60.103.104 · AS209242 [1] [2] |
| Incoming email | Microsoft 365 | Not European | MX 0 tresorit-com.mail.protection.outlook.com · 10 tresorit-com.mail.eo.outlook.com [1] |
| Outgoing email | Microsoft 365 | Not European | SPF spf.protection.outlook.com [1] |
| Outgoing email | Adobe Marketo | Not European | SPF mktomail.com [1] |
| Outgoing email | Zendesk | Not European | SPF mail.zendesk.com [1] |
| Outgoing email | Salesforce Pardot | Not European | SPF aspmx.pardot.com [1] [2] |
| Outgoing email | Salesforce | Not European | SPF _spf.salesforce.com [1] [2] |
| Outgoing email | HubSpot | Not European | SPF 144472103.spf08.hubspotemail.net [1] |
Badge
tresorit can show its verified European ownership with a badge that links back to this page. If the verdict ever changes, the badge stops working.
Also available in black and white, and as a compact badge: change blue to black or white, or ownership to ownership-compact.