All Brands Owned by Proton AG

Who owns Proton AG?
Since June 2024, the controlling shareholder of Proton AG has been the non-profit Proton Foundation. The Foundation was established to ensure Proton maintains its privacy-focused mission over the long term and legally prevents the company from being acquired. Andy Yen serves as CEO. Proton AG is not publicly traded.

Is Proton Mail truly private?
Proton Mail uses end-to-end encryption, meaning Proton itself cannot read the content of users' emails. However, Proton can be compelled by Swiss courts to provide metadata (such as IP addresses) for specific accounts. Proton does not log IP addresses by default but can be ordered to begin logging for specific accounts. Users seeking maximum anonymity should use Proton via Tor.

When was Proton AG founded?
Proton AG was founded in 2014 by Andy Yen, Jason Stockman, and Wei Sun while they were researchers at CERN in Geneva, Switzerland.

What services does Proton offer?
Proton offers Proton Mail (encrypted email), Proton VPN (secure VPN), Proton Drive (encrypted cloud storage), Proton Calendar (encrypted calendar), Proton Pass (password manager), Proton Meet (encrypted video conferencing), Proton Docs and Sheets (encrypted documents), Proton Workspace (integrated productivity suite), Lumo (AI assistant), and SimpleLogin (email aliasing).

What is Proton Workspace?
Proton Workspace is an integrated productivity suite launched in April 2026 that bundles all Proton services into a single subscription, rivaling Google Workspace and Microsoft 365. Workspace Standard costs €12.99/user/month and includes Mail, Calendar, Drive, Docs, Sheets, Meet, VPN, and Pass. Workspace Premium costs €19.99/user/month and adds expanded storage, email retention policies, and Lumo AI.

What is Proton Meet?
Proton Meet is an end-to-end encrypted video conferencing tool launched in April 2026. All calls are secured using the MLS (Messaging Layer Security) open-source protocol, meaning even Proton cannot access audio, video, screen shares, or chat messages. Free users can host calls for up to 50 participants for one hour; the Professional plan (€7.99/user/month) removes restrictions.

How many users does Proton have?
Proton has over 100 million registered users globally and serves over 100,000 businesses, including law firms, newsrooms, NGOs, consultancies, Fortune 500 companies, and public sector organizations.

Is Proton AG publicly traded?
No, Proton AG is privately held and controlled by the non-profit Proton Foundation. The company is not publicly traded and cannot be acquired due to the Foundation's controlling stake.