Tools · mainframe midrange

Companies using RACF_

As of 4 November 2026, 75 companies name RACF 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
IT operations & business systems · 194 postings
Hiring on it, last 30 days
76 companies
Most often alongside
z/OS · 115 companies
75companies show RACF, all sources
0on their website or in DNS records
75name it in their own job postings
231postings naming RACF, last 90 days
02 — Two ways we see a tool

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

Job postings75

Companies whose own postings say the team works in RACF. 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 RACF. The rest of the posting population (75) runs RACF without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on RACF

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

75 companies show RACF; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs RACF inside the company

The 75 companies whose postings name RACF: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
IT operations & business systems
194 · 96
Software engineering
27 · 14
Engineering (non-software)
11 · 10
Finance & accounting
5 · 4
Product, program & project management
4 · 4
Administration & office
1 · 1
healthcare clinical
1 · 1
logistics warehouse and transport
1 · 1
manufacturing and production
1 · 1
Sales
1 · 1
Posting companies by country
companiesshare
United States
4357%
Germany
57%
Australia
45%
United Kingdom
45%
France
34%
Denmark
23%
Argentina
11%
Czechia
11%
Spain
11%
India
11%
Italy
11%
Netherlands
11%
Posting companies by size
companiesshare
Self-employed
11%
2-10 employees
79%
11-50 employees
811%
51-200 employees
1013%
201-500 employees
57%
501-1000 employees
811%
1001-5000 employees
45%
5001-10000 employees
79%
10,001+ employees
2533%
Hiring on it right now
postings
Postings, last 30 days
163
Postings, last 90 days
231
All open postings
347

76 companies opened a role that names RACF 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 RACF teams also ask for

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

08 — mainframe midrange

RACF 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.

75 companies name RACF 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/racf)
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 RACF 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

RACF data: questions

How many companies use RACF?

75 as of 4 November 2026: 0 carry RACF on their website or in their DNS records and 75 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 RACF'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 RACF. 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 RACF, 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 75 with verified e-mails and a weekly feed of new RACF users is in the product. Counting is free.

Companies and people

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