Proton | 120,143 followers on LinkedIn. Proton provides free encrypted email, calendar, drive, password manager, and VPN services. Building a better Internet. | At Proton, we believe that a better world begins with privacy, and our mission is at the heart of everything we do. Proton is a community-first organization, created through a public crowdfunding campaign, and built with community input. To this day, Proton's only source of revenue is subscriptions from users.