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Tools · postmark · United Kingdom

Companies using postmark in United Kingdom

As of 4 November 2026, 9,200 British companies show postmark: 9,200 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 · 796
In both sources
0
Team that names it most
Customer service & success · 1 postings
9,200British companies show postmark, all sources
9,200on their website or in DNS records
0name it in job postings · 1 open
Londoncity with most postmark companies · 796
02Who uses it

British companies on postmark

No British company names postmark in its job postings yet; the 9,200 companies in the footprint carry it on their website or in DNS.

0 British companies match this filter; 9,200 show postmark in total.

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

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

03Breakdown

By city, company size, industry and team

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

Footprint by city
companiesshare
London
7969%
Manchester
741%
Newington
721%
Edinburgh
711%
Hoxton
621%
Bristol
551%
Cambridge
450%
Glasgow
440%
Birmingham
420%
Nottingham
400%
Footprint by company size
companiesshare
Self-employed
2,95032%
2-10 employees
3,27036%
11-50 employees
1,90721%
51-200 employees
7438%
201-500 employees
2012%
501-1000 employees
781%
1001-5000 employees
380%
5001-10000 employees
50%
10,001+ employees
80%
Posting companies by city
companiesshare
Posting companies by size
companiesshare
Posting companies by industry
companiesshare
Postings by function
postings · companies
Customer service & success
1 · 1
Cite this

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

9,200 British companies show postmark: 9,200 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/postmark/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

postmark in United Kingdom: questions

Is this every British company on postmark?

It is every British company whose website, DNS records or own job postings show it: 9,200 in total. Companies that use postmark 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 postmark and United Kingdom, and open the people you want. Counting is free; the first 1,000 results are too.

Companies and people

Get this list your way

The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.

Every British company on postmark,
with the person who owns it

Filter on postmark and United Kingdom. Start free, no card.

  1. 01Sign up, no card
  2. 02Connect Claude, ChatGPT or an API key
  3. 03Ask for your market