Breaknorm
Sign inStart free

Product

SignalsPeopleCompaniesLocal businessesMCP and API

Plays

Post engagersTeam build-outChampion movedHiring surgeNewly fundedLookalikesAll plays

Data

Coverage by countryHiring dataJob changesEmail verificationCompanies by toolWho is hiringMarket mapsOutboundCompany profilesCompare
PricingDatasetsDocsSign in
Tools · Firebase · United Kingdom

Companies using Firebase in United Kingdom

As of 4 November 2026, 1,801 British companies show Firebase: 1,734 on their website or in DNS records and 71 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 · 198
In both sources
4
Most common size
11-50 employees
Team that names it most
Software engineering · 20 postings
Top industry, posting companies
Technology & software
1,801British companies show Firebase, all sources
1,734on their website or in DNS records
71name it in job postings · 28 open
Londoncity with most Firebase companies · 198
02Who uses it

British companies on Firebase

Every company in the country whose own postings name the tool; job boards and portals left out.

69 British companies match this filter; 1,801 show Firebase in total.

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

Footprint by city
companiesshare
London
19811%
Hoxton
141%
Bristol
131%
Manchester
91%
Newington
80%
Birmingham
50%
Edinburgh
50%
Canary Wharf
40%
Coventry
40%
Leeds
40%
Footprint by company size
companiesshare
Self-employed
1,04660%
2-10 employees
39223%
11-50 employees
22913%
51-200 employees
432%
201-500 employees
171%
501-1000 employees
50%
1001-5000 employees
10%
10,001+ employees
10%
Posting companies by city
companiesshare
London
1420%
Abberton
23%
Kennyhill
23%
San Francisco
23%
Amsterdam
11%
Basildon
11%
Belfast
11%
Canary Wharf
11%
Chennai
11%
Chicago
11%
Chiswick
11%
Dartford
11%
Posting companies by size
companiesshare
Self-employed
46%
2-10 employees
1623%
11-50 employees
1724%
51-200 employees
1217%
201-500 employees
710%
501-1000 employees
34%
1001-5000 employees
710%
5001-10000 employees
34%
10,001+ employees
23%
Posting companies by industry
companiesshare
Technology & software
3854%
Business & finance services
1724%
Commerce & trade
57%
Media & content
46%
Public, community & associations
34%
Manufacturing & industry
34%
Consumer services & leisure
11%
Postings by function
postings · companies
Software engineering
20 · 17
Product, program & project management
2 · 1
Engineering (non-software)
1 · 1
Marketing & communications
1 · 1
Cite this

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

1,801 British companies show Firebase: 1,734 carry it on their website or in their DNS records, 71 name it in their own job postings, 4 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/firebase/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

Firebase in United Kingdom: questions

Is this every British company on Firebase?

It is every British company whose website, DNS records or own job postings show it: 1,801 in total. Companies that use Firebase 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 Firebase 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 Firebase,
with the person who owns it

Filter on Firebase 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