Dropbox stores files on US-controlled infrastructure. Tresorit uses client-side zero-knowledge encryption from its Swiss headquarters, ensuring no third party — not even Tresorit — can decrypt your files.
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Dropbox is a US cloud file storage and sharing service headquartered in San Francisco, California. Listed on NASDAQ, it serves over 700 million users and stores data on US-controlled infrastructure.
Dropbox ownership profileEU Challenger
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.
Visit TresoritTresorit ownership profile| Metric | Dropbox | Tresorit |
|---|---|---|
| Headquarters | San Francisco, US | Zurich, CH |
| Ownership | public · NASDAQ | subsidiary |
| Tax Domicile | US | CH |
| Ultimate Parent | Dropbox, Inc. | Magyar Telekom |
| Data Hosting | mixed | mixed |
| CLOUD Act Exposure | Yes ⚠️ | No ✓ |
| AI Trains on User Data | partial | no |
| GDPR | compliant | compliant |
| DSA Designation | standard | na |
| Carbon Neutral | claimed | unknown |
| B Corp | No | No |
| Supply Chain | partial | opaque |
| Repair / Recycling | No | No |
Last verified . Sources: Dropbox on Wikidata, Dropbox website, Tresorit website, How we audit.
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Koofr is a Slovenian cloud storage platform offering privacy-focused file management, headquartered in Ljubljana. EU-owned and operated, it aggregates multiple cloud storage providers and is a European alternative to Dropbox and Google Drive.
EU AllProton Drive is a Swiss end-to-end encrypted cloud storage service by Proton AG, a Swiss non-profit foundation. Its zero-knowledge architecture means even Proton cannot access your files. It is the leading European alternative to Dropbox and Google Drive.
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