Proton Drive
VERIFIEDSwiss zero-knowledge encrypted cloud (Proton AG, non-profit-foundation-controlled), 11,496 owned servers, ISO 27001 + SOC 2, 5 GB free.
Why this score?
Proton AG (Geneva — Route de la Galaise 32, Plan-les-Ouates; founded 2014 by Andy Yen and a team from CERN) is controlled by the non-profit Proton Foundation (since June 2024) with no venture-capital investors anywhere on the cap table, runs 11,496 owned-and-operated servers across 117 countries with Swiss-jurisdiction primary processing, ISO/IEC 27001:2022 + SOC 2 Type II certifications covering all Proton product lines, and zero-knowledge end-to-end encryption that makes the customer the sole keyholder — full 5/5 with minor CLOUD Act exposure only because of ancillary US payment / support sub-processors (Stripe, Zendesk, Chargebee, Atlassian) that do not touch encrypted product data.
- SCORE
- 5.0/5
- CLOUD ACT
- CLOUD ACT EXPOSURE
How exposed customer data is to US authorities under the CLOUD Act.
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None EU operator, no US parent, no US sub-processors of note.
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Minor This listing A transient US sub-processor (CDN, maps); data at rest stays in the EU.
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Material US parent, or a core sub-processor is a US-owned hyperscaler.
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Direct The operator itself is US-incorporated.
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- OWNERSHIP
- OWNERSHIP
Where ultimate control over the operating company sits.
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EU-owned EU-incorporated and EU-controlled; no significant US ownership.
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EU HQ, US-funded EU-headquartered but US venture- or PE-controlled.
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US-owned US-headquartered, or has a US parent company.
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Other This listing Swiss, UK or another non-EU jurisdiction.
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- SUB-PROCS
- 0 none disclosed
JUMP TO
About Proton Drive
Sub-processor map · none disclosed
Frameworks & certifications
Capability matrix
Pricing & tiers
Public documents
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How exposed customer data is to US authorities under the CLOUD Act.
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How exposed customer data is to US authorities under the CLOUD Act.
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None This listing EU operator, no US parent, no US sub-processors of note.
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Minor A transient US sub-processor (CDN, maps); data at rest stays in the EU.
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Material US parent, or a core sub-processor is a US-owned hyperscaler.
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Direct The operator itself is US-incorporated.