Proton Mail

Proton Mail is an end-to-end encrypted email service founded in 2014 by scientists who met at CERN. Headquartered in Geneva, Switzerland, the service was built on the principle that privacy is a fundamental right. Proton Mail encrypts emails on the client side before they reach Proton's servers, meaning even Proton itself cannot read user messages.

The platform has grown from a simple encrypted email service into a full privacy ecosystem called Proton, which includes Proton Calendar, Proton Drive (cloud storage), Proton VPN, and Proton Pass (password manager). Proton Mail supports custom domains, PGP encryption, and offers bridge software that allows users to connect the service with desktop email clients like Outlook and Thunderbird.

Proton AG benefits from Switzerland's strong privacy laws and political neutrality. The company serves over 100 million users worldwide and has become a leading alternative for individuals, journalists, and organizations seeking to move away from ad-supported email services that mine user data for advertising purposes. All Proton servers are located in Switzerland, with some infrastructure in Germany.