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Tools · Firebase · United States

Companies using Firebase in United States

As of 4 November 2026, 14,259 US companies show Firebase: 13,756 on their website or in DNS records and 520 in their own job postings, led by New York.

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

Top city
New York · 112
In both sources
17
Most common size
11-50 employees
Team that names it most
Software engineering · 128 postings
Top industry, posting companies
Technology & software
14,259US companies show Firebase, all sources
13,756on their website or in DNS records
520name it in job postings · 198 open
New Yorkcity with most Firebase companies · 112
02Who uses it

US companies on Firebase

Companies with 51+ employees and high-confidence evidence in their own postings; job boards and portals left out.

28 US companies match this filter; 14,259 show Firebase in total.

Open the sales or marketing leader at each one with a verified e-mail, or get new US 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
New York
1121%
San Francisco
1041%
Austin
701%
Miami
390%
Houston
310%
San Diego
290%
Footprint by company size
companiesshare
Self-employed
10,29075%
2-10 employees
1,54411%
11-50 employees
1,52511%
51-200 employees
2942%
201-500 employees
630%
501-1000 employees
220%
1001-5000 employees
120%
5001-10000 employees
20%
10,001+ employees
40%
Posting companies by city
companiesshare
New York
122%
San Francisco
92%
San Jose
71%
Chicago
61%
Atlanta
41%
Austin
41%
Boston
41%
Irvine
31%
Las Vegas
31%
Miami
31%
Posting companies by size
companiesshare
Self-employed
499%
2-10 employees
7314%
11-50 employees
13225%
51-200 employees
10921%
201-500 employees
5010%
501-1000 employees
275%
1001-5000 employees
387%
5001-10000 employees
122%
10,001+ employees
306%
Posting companies by industry
companiesshare
Technology & software
29657%
Business & finance services
8015%
Media & content
5210%
Consumer services & leisure
224%
Manufacturing & industry
153%
Commerce & trade
112%
Public, community & associations
112%
Hospitality & travel
71%
Utilities & infrastructure
71%
Transport, logistics & rental
61%
Property & construction
51%
Automotive
41%
Postings by function
postings · companies
Software engineering
128 · 97
Data & AI
24 · 15
Product, program & project management
10 · 8
Engineering (non-software)
7 · 5
Marketing & communications
7 · 4
Education & training
4 · 1
Design & UX
3 · 3
IT operations & business systems
2 · 2
Quality, safety & environment
1 · 1
Cite this

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

14,259 US companies show Firebase: 13,756 carry it on their website or in their DNS records, 520 name it in their own job postings, 17 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/firebase/united-states)
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 US 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 States: questions

Is this every US company on Firebase?

It is every US company whose website, DNS records or own job postings show it: 14,259 in total. Companies that use Firebase without any public trace are not counted.

What does "United States" 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 US list with e-mails?

Sign up, filter companies on Firebase and United States, 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 US company on Firebase,
with the person who owns it

Filter on Firebase and United States. Start free, no card.

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