How many email patterns does Proton use?

Proton uses 16 known email patterns.

What domain does Proton use for work emails?

Proton uses proton.me for work email addresses.

Most Common Email Formats at Proton

The most accurate and popular Proton's email format is First.Last@proton.me (ex. John.Doe@proton.me). Proton also uses F.Last@proton.me (ex. J.Doe@proton.me) as email structures. Proton uses up to 4 different email patterns.

Proton Email Formats	Example	Percentage
First.Last@proton.me	John.Doe@proton.me	65%
F.Last@proton.me	J.Doe@proton.me	15%
First@proton.me	John@proton.me	12%
Last@proton.me	Doe@proton.me	8%

Frequently Asked Questions

What does Proton do?

Proton was founded in 2014. operates in the Technology, Information and Internet industry, along with similar companies like HushmailStartMail. You can visit proton.me. Explore Proton's company overview page for more information.

What is Proton's email address format?

Proton's email format typically follows the pattern of First.Last@proton.me; this email format is used 65% of the time. Other contacts within LeadIQ's database had email formats such as F.Last@proton.meFirst@proton.me. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does Proton have currently?

Proton has approximately 903 employees as of July 2026. Key team members to contact include Chief Executive Officer: B. V.Chief Executive Officer: J. T.Chief Technology Officer: B. B.. For more team information and contact data, explore Proton's employee directory with LeadIQ.

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Proton Email Format

Q: What is Proton's email address format?

Proton's email format typically follows the pattern of ${fn}.${ln}. Other email formats include ${fi}.${ln} and ${fn}.

Technology, Information and InternetGeneva, Switzerland501-1000 Employees

Proton is a Swiss technology company building a privacy-first, open-source ecosystem designed to support a free and open internet. Created by scientists from CERN and MIT and governed by the Proton Foundation, a Swiss non-profit, it operates on a subscription model and does not rely on ads or data mining. Headquartered in Geneva, Switzerland, Proton maintains offices in multiple cities worldwide, underscoring its global reach. Its user base spans journalists, activists, NGOs, academics, and creatives who rely on privacy-focused tools to protect information and communications. In early 2026, Proton launched a Proton VPN browser extension, reflecting ongoing expansion of its privacy ecosystem.

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Most Common Email Formats at Proton

Frequently Asked Questions

What does Proton do?

What is Proton's email address format?

How many employees does Proton have currently?

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What you can expect from LeadIQ:

Proton Email Format

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