Tools · LLM models & APIs

Companies using Claude_

As of 4 November 2026, 8,753 companies name Claude in their own job postings; it leaves no trace on websites or in DNS.

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

Largest market
–
Companies with 51+ staff
–
Top industry
–
Team that names it most
Software engineering · 5,602 postings
Hiring on it, last 30 days
6,197 companies
Most often alongside
ChatGPT · 4,480 companies
8,753companies show Claude, all sources
0on their website or in DNS records
8,753name it in their own job postings
23,652postings naming Claude, last 90 days
02 — Two ways we see a tool

Where Claude shows up

Each population is counted on its own. We never add them up without saying so, because they answer different questions.

Website and DNS footprint0

Companies whose own pages load Claude's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at Claude. From our crawl of 41.5M company websites and the DNS sweep behind it. Reach: the tool is in the building.

Job postings8,753

Companies whose own postings say the team works in Claude. Read hourly from ~70 applicant tracking systems, with the function, a quote and a date. Intent: the team that runs it is hiring.

Both0

Companies in the footprint whose postings also name Claude. The rest of the posting population (8,753) runs Claude without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Claude

Companies with 201+ employees and high-confidence evidence in their own postings; job boards and portals left out.

UDIT, Universidad de Diseño, Innovación y TecnologíaUniversities · Madrid, Spain201-500 employeesHillwoodGeneral property developers · Dallas, United States501-1000 employeesOKXCrypto exchanges · United States1001-5000 employeesLawnStarterLawn care & mowing · United States201-500 employeesAxos BankRetail & commercial banks · Bānk, United States1001-5000 employeesNortheastern UniversityUniversities · United States501-1000 employeesCentralSquareGovtech public sector software · Lake Mary, United States1001-5000 employeesMutual of Omaha MortgageMortgage & property finance · San Diego, United States501-1000 employeesGuild MortgageMortgage & property finance · United States1001-5000 employeesVehloAutomotive dealer software · Knoxville, United States201-500 employeesWaupaca FoundryMetal stamping & casting · Waupaca, United States1001-5000 employeesDashlaneCybersecurity iam software · Paris, France201-500 employeesDanske BankRetail & commercial banks · København V, Denmark10,001+ employeesIntuitiveMedical device manufacturers · Sunnyvale, United Kingdom10,001+ employeesBambooHRHR management software · Draper, United States1001-5000 employeesOTP BankRetail & commercial banks · Budapest, Hungary10,001+ employeesPROCEPT BioRoboticsMedical device manufacturers · United States201-500 employeesSophosManaged cybersecurity services · United Kingdom1001-5000 employeesOakNorth BankRetail & commercial banks · Manchester, United Kingdom201-500 employeesM-FilesDocument management automation · United States501-1000 employees
8,753 companies show Claude; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs Claude inside the company

The 8,753 companies whose postings name Claude: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Software engineering
5,602 · 2,331
Data & AI
4,283 · 2,238
Marketing & communications
2,601 · 1,610
IT operations & business systems
1,759 · 985
Sales
1,755 · 1,024
Product, program & project management
1,625 · 1,007
Finance & accounting
1,271 · 849
Design & UX
887 · 594
Engineering (non-software)
656 · 283
Customer service & success
578 · 368
Posting companies by country
companiesshare
United States
5,20459%
Germany
6377%
United Kingdom
6147%
France
2213%
Canada
2193%
India
1872%
Brazil
1512%
Netherlands
1191%
Australia
1181%
Spain
1011%
Sweden
781%
Austria
601%
Posting companies by size
companiesshare
Self-employed
3364%
2-10 employees
90110%
11-50 employees
1,48617%
51-200 employees
2,10624%
201-500 employees
1,28015%
501-1000 employees
85810%
1001-5000 employees
1,00411%
5001-10000 employees
2563%
10,001+ employees
5266%
Hiring on it right now
postings
Postings, last 30 days
16,668
Postings, last 90 days
23,652
All open postings
28,552

6,197 companies opened a role that names Claude in the last 30 days. A hiring team that names its tools is the moment to write to the person who owns the stack.

07 — Named alongside

What Claude teams also ask for

Tools named in the same postings as Claude. Office software is left out.

08 — LLM models & APIs

Claude against the rest of its category

Ranked by companies naming each tool in postings. Whole category →

Cite this

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

8,753 companies name Claude in their own job postings; it leaves no trace on websites or in DNS, so the posting layer is the whole picture. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/claude)
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 →

  • Website codeScripts, tags and embeds found on the company's own pages in our crawl of 41.5M sites. A tool counts once per company.
  • DNS recordsSPF includes, DKIM selectors, MX and CNAME records of the company's domain that point at Claude or another vendor. Swept in cycles; dedicated mail-provider and hosting facets open once coverage passes 80% per country.
  • Job postingsRead hourly from the applicant tracking systems behind company career sites. A tool counts when the employer's own text names it as the team's system; candidate wish-lists and apply boilerplate are excluded. Confidence low, medium or high per company.
  • Sending infrastructureCold-e-mail sending domains are look-alike domains on a provider's infrastructure (DNS records, certificate logs) that redirect to the company. Absence is not evidence: only companies with a found sending domain are counted.
  • CompaniesCountry, size and industry come from the company profile we build from its website; headcount from LinkedIn where known, otherwise estimated. Job boards, portals and aggregators are kept out of lists.
FAQ

Claude data: questions

How many companies use Claude?

8,753 as of 4 November 2026: 0 carry Claude on their website or in their DNS records and 8,753 name it in their own job postings; 0 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds Claude's scripts, embeds and tags on the company's own pages, and our DNS sweep reads the domain's mail and hosting records (SPF includes, DKIM selectors, MX, CNAMEs) that point at Claude. Either one puts the company in the footprint. The sweep is still running, so this number grows week by week.

Why is the job-posting number so much smaller?

A posting only names a tool when the team that will use it is hiring and chooses to say so. That makes it a smaller but stronger signal: it tells you which team runs Claude, with a quote and a date. The footprint tells you reach.

How fresh is this?

Career sites are read hourly, websites are re-crawled on a rolling schedule and DNS is re-swept in cycles. The date at the top is when these counts were computed.

Can I get the list?

Yes. The first 20 are on this page; the full 8,753 with verified e-mails and a weekly feed of new Claude users is in the product. Counting is free.

Companies and people

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