Tools · ai assistants

Companies using Claude Cowork_

As of 4 November 2026, 373 companies name Claude Cowork 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
Data & AI · 173 postings
Hiring on it, last 30 days
294 companies
Most often alongside
Claude · 201 companies
373companies show Claude Cowork, all sources
0on their website or in DNS records
373name it in their own job postings
784postings naming Claude Cowork, last 90 days
02 — Two ways we see a tool

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

Job postings373

Companies whose own postings say the team works in Claude Cowork. 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 Cowork. The rest of the posting population (373) runs Claude Cowork 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 Cowork

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

Moon ActiveMobile casual game studios · United States1001-5000 employeesEastern BankRetail & commercial banks · Boston, United States1001-5000 employeesCook MedicalMedical device manufacturers · Bloomington, United States10,001+ employeesSpellbookLegal tech software · Toronto, Canada51-200 employeesM-FilesDocument management automation · United States501-1000 employeesCrowdStrikeCybersecurity iam software · Sunnyvale, United States5001-10000 employeesTalanDigital transformation consulting · Paris 16, France1001-5000 employeesAstraZenecaPharmaceutical manufacturers · Cambridge, United Kingdom10,001+ employeesGuidePoint SecurityManaged cybersecurity services · Reston, United States501-1000 employeesBizzaboEvent management software · New York, United States51-200 employeesRadNetDiagnostic imaging radiology · Owings Mills, United States5001-10000 employeesDeelHR management software · United States1001-5000 employeesOrigoBpo & call centre services · United States201-500 employeesWorldlyCompliance grc software · Concord, United States51-200 employeesLevelTen EnergyEnergy utility software · Seattle, Spain51-200 employeesProximus GroupIt & telecoms provider · Saint-Josse-Ten-Noode, Belgium10,001+ employeesEmoryUniversities · Atlanta, United States10,001+ employeesiQmetrixPOS software · United States201-500 employeesinterface.aiAI agent automation platforms · San Jose, United States51-200 employeesMenlo SecurityManaged cybersecurity services · Mountain View, United States201-500 employees
373 companies show Claude Cowork; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs Claude Cowork inside the company

The 373 companies whose postings name Claude Cowork: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Data & AI
173 · 101
Product, program & project management
84 · 62
IT operations & business systems
79 · 53
Sales
69 · 49
Finance & accounting
68 · 47
Software engineering
68 · 49
Marketing & communications
63 · 44
General management & consulting
36 · 21
Customer service & success
29 · 15
Business development & strategy
25 · 15
Posting companies by country
companiesshare
United States
25568%
Germany
246%
United Kingdom
185%
Canada
113%
France
113%
Australia
51%
Brazil
41%
Spain
41%
Japan
41%
Austria
31%
Denmark
31%
Netherlands
21%
Posting companies by size
companiesshare
Self-employed
133%
2-10 employees
318%
11-50 employees
4211%
51-200 employees
8122%
201-500 employees
5715%
501-1000 employees
339%
1001-5000 employees
6417%
5001-10000 employees
195%
10,001+ employees
339%
Hiring on it right now
postings
Postings, last 30 days
539
Postings, last 90 days
784
All open postings
956

294 companies opened a role that names Claude Cowork 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 Cowork teams also ask for

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

08 — ai assistants

Claude Cowork 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.

373 companies name Claude Cowork 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-cowork)
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 Cowork 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 Cowork data: questions

How many companies use Claude Cowork?

373 as of 4 November 2026: 0 carry Claude Cowork on their website or in their DNS records and 373 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 Cowork'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 Cowork. 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 Cowork, 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 373 with verified e-mails and a weekly feed of new Claude Cowork users is in the product. Counting is free.

Companies and people

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Every company on Claude Cowork,
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