Vendor profile
Proton Mail: where is customer data stored and processed?
Proton Mail stores customer content encrypted on Proton's own servers, and the sources name Switzerland, Germany and Norway, though without specific cities. Customers cannot choose region, and the data processing agreement says data is transferred to Switzerland, the EU and countries with adequacy decisions, but does not state where data is stored. Support is handled by ProtonLabs in North Macedonia and Taiwan, Zendesk in the USA (including live chat), and Atlassian stores support data in the EU, USA and UK. Payment data goes to Stripe in the USA and PayPal in Singapore, both under SCC. Lumo AI runs on Proton's European infrastructure, but this location is not confirmed.
Checked 12 October 2026 · based on the vendor's own public documents
See the map and sources
Where data is stored and processed
| Activity | In the EU/EEA | Outside the EU/EEA |
|---|
| Storage | Germany, Norway | Switzerland |
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| Analytics and metadata | – | USA, Singapore |
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| Support | Europe (country not stated) | Nord-Makedonia, Taiwan, USA, United Kingdom |
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| Group companies | – | Switzerland |
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| AI features | Europe (country not stated) | – |
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Only outside the EU/EEA, with no European alternative stated: Analytics and metadata, Group companies.
Ownership and agreements
| Owner | Proton Foundation (Switzerland) |
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| Headquarters | Switzerland |
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| Data processing agreement | Found and read |
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| Certifications | ISO/IEC 27001 |
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Sub-processors (8)
| Name | Country | Purpose |
|---|
| ProtonLabs DOOEL Skopje | Nord-Makedonia | Kundesupport og direkte kommunikasjon |
| ProtonLabs Taiwan Co., Ltd | Taiwan | Kundesupport og direkte kommunikasjon |
| Zendesk, Inc. | USA | Kundesupport, inkl. live chat |
| Atlassian Pty Ltd | EU, USA, Storbritannia | Lagring av supportdata |
Sources