Secure business email, calendar, VPN, and much more, built on the principle of your data, your rules.
Support your compliance objectives
Easily comply with regulations that require personal health information, financial documents, and other sensitive data to be protected.
Security through transparency
Proton was founded by scientists, and we believe in research, peer review, and transparency. All our apps are open source and independently audited so that anyone can use, inspect, and trust them.
Your data, your rules
Proton uses zero-access encryption and end to end encryption (PGP encryption) wherever possible. This helps ensure nobody, not even Proton, can decrypt, access, or share any of your business information. We don't serve ads and can't share your data with advertisers.
User management
As an administrator, you can add, remove, or view the access level of every user. Plus, you can add and remove storage space, set up email addresses, and reset passwords for email accounts.
Catch-all
Receive mail sent to nonexistent email addresses on your business domain, so you'll never miss a message.
Spam protection
Protect inboxes from unwanted emails, including spam and malware, to help keep your team focused and safe.
Distribution lists
Keep teams on the same page by assigning multiple users to the same email address (e.g., sales@example.com). Contact the sales team to be notified when this feature is available.
Contact lists
Easily send emails to the whole team or groups of recipients by creating contact lists.
Account transfer
When team member responsibilities change, it's easy to transfer emails to a different account.
Protect your sensitive data and the sensitive data of your customers, clients, and partners.
Proton Mail business plans are billed per seat, not per message, contact, or transaction. Mail Essentials, Workspace Standard, and Workspace Premium each start with a minimum of one user. Adding team members increases the subscription; each added seat brings the storage and email-address allowance of its plan.
You can choose monthly billing or annual billing, which charges for the year rather than each month. The listed business plans show the same features under both billing options. Proton Enterprise is customized through its sales team rather than bought at a listed tier price. Changes to seats and optional extras made during a billing period are prorated.
The free personal plan is limited to one user and one email address, with no custom domain. New business customers can trial a selected plan for 14 days, but the trial caps users and does not allow extra custom-domain slots. It converts to a paid subscription unless canceled before it ends.
Pricing last verified November 8, 2026.
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