Tools · proton mail · United Kingdom

Companies using proton mail in United Kingdom_

As of 4 November 2026, 7,354 British companies show proton mail: 7,354 on their website or in DNS records and 0 in their own job postings, led by London.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Top city
London · 595
In both sources
0
Team that names it most
–
7,354British companies show proton mail, all sources
7,354on their website or in DNS records
0name it in job postings · 0 open
Londoncity with most proton mail companies · 595
02 — Who uses it

British companies on proton mail

No British company names proton mail in its job postings yet; the 7,354 companies in the footprint carry it on their website or in DNS.

0 British companies match this filter; 7,354 show proton mail in total.

Open the sales or marketing leader at each one with a verified e-mail, or get new British proton mail users every Monday.

Free plan: 1,000 records, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

03 — Breakdown

By city, company size, industry and team

Footprint tables first (website or DNS), then the companies whose postings name proton mail.

Footprint by city
companiesshare
London
5958%
Hoxton
391%
Manchester
350%
Edinburgh
240%
Glasgow
240%
Birmingham
230%
Newington
200%
Canary Wharf
190%
Aldgate East
180%
Bristol
170%
Footprint by company size
companiesshare
Self-employed
5,79379%
2-10 employees
1,26717%
11-50 employees
2163%
51-200 employees
581%
201-500 employees
110%
501-1000 employees
60%
5001-10000 employees
10%
10,001+ employees
20%
Posting companies by city
companiesshare
Posting companies by size
companiesshare
Posting companies by industry
companiesshare
Postings by function
postings · companies
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

7,354 British companies show proton mail: 7,354 carry it on their website or in their DNS records, 0 name it in their own job postings, 0 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/proton-mail/united-kingdom)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from the applicant tracking systems behind British career sites. A tool counts when the employer's own text names it as the team's system.
  • CountryFrom the company's own website: imprint, address, phone prefix and language, with a confidence score. Not the posting's location.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • ExclusionsJob boards, portals and aggregators are kept out of company lists.
FAQ

proton mail in United Kingdom: questions

Is this every British company on proton mail?

It is every British company whose website, DNS records or own job postings show it: 7,354 in total. Companies that use proton mail without any public trace are not counted.

What does "United Kingdom" mean here?

The country of the company, from its own website (imprint, address, phone prefix, language), not where the posting is located. A German company hiring in Paris still counts as German.

How do I get the British list with e-mails?

Sign up, filter companies on proton mail and United Kingdom, and open the people you want. Counting is free; the first 1,000 records are too.

Companies and people

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Every British company on proton mail,
with the person who owns it

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