Proton AG

PROTON AG is a Swiss software company associated with the Proton privacy product suite (including Proton Mail and Proton VPN) and is listed as headquartered in Plan-les-Ouates, Geneva. Public company registries describe its purpose as development of security and privacy software, and Proton’s own support materials identify Proton Mail as a service provided by Proton AG.

Public routing/peering data links PROTON AG to AS62371 under RIPE, and PeeringDB lists this ASN with an open peering policy plus presence at SwissIX, with facilities referenced in Zurich, Frankfurt, and Oslo. Third‑party BGP views also show upstream relationships (e.g., Cloudflare, Lumen, Hurricane Electric), indicating a multi-provider connectivity model; separate Proton-related ASNs appear in some datasets, so attribution can be fragmented across services.

User-review signals are mixed: Trustpilot pages for Proton Mail and Proton VPN contain substantial criticism (often about support and account issues), while other software-review aggregators report much higher average ratings. Because the sentiment varies strongly by platform and product, an overall reputation score is best treated as neutral.