Proton Drive is the encrypted cloud-storage product within the Proton AG ecosystem (Mail, Drive, VPN, Pass, Calendar, Docs, Sheets, SimpleLogin), headquartered at Route de la Galaise 32, 1228 Plan-les-Ouates, Geneva, Switzerland. Founded in 2014 by Andy Yen and a team that originally met at CERN, Proton serves more than 100 million users worldwide and runs the most singular ownership structure in the directory: as of June 2024 the non-profit Proton Foundation (Swiss, Geneva; trustees include Andy Yen, Antonio Gambardella, Carissa Véliz, Tim Berners-Lee, and Dingchao Lu) is the controlling shareholder of Proton AG. The company explicitly takes no venture capital, its non-profit structure is designed to permanently prevent takeover attempts, and there is no path for a US-PE / US-VC investor to influence governance.
Compliance posture is exceptional. Proton holds ISO/IEC 27001:2022 with the ISMS scope covering all product lines (Mail, Drive, Pass, VPN, Calendar, SimpleLogin) and SOC 2 Type II. The infrastructure footprint is also unusual: by February 2025 Proton had 11,496 servers across 117 countries, all owned and operated by Proton itself, not rented from hyperscalers. Primary processing is in Switzerland; named US sub-processors are limited to ancillary functions (Zendesk for customer support, Chargebee for billing automation, Stripe and PayPal for card payments, Atlassian for support-data storage) and do not touch zero-knowledge-encrypted customer files. Standard Contractual Clauses, Binding Corporate Rules, and certifications govern any third-country transfers. Switzerland is not in the EU but holds an EU adequacy decision under Art. 45 GDPR, so transfers EU↔CH require no SCCs.
Drive pricing in EUR: Free includes 5 GB encrypted storage plus Docs and Sheets; Drive Plus is from approximately €4/month for 200 GB and file-version recovery; Proton Unlimited at ~€10/month adds 500 GB, Mail with 15 custom addresses, VPN, Pass, and Proton Sentinel advanced account protection; Duo (2 TB, 2 users), Family (3 TB, 6 users), and Drive Professional (1 TB/user for business). Best fit: every EU and Swiss procurement-grade buyer requiring zero-knowledge encrypted file sharing with the strongest sovereignty story in the directory; particularly compelling for journalists, NGOs, regulated industries, and any organisation needing genuine "no one outside the customer can access this data" guarantees.