Tools · Programming languages

Companies using REXX_

As of 4 November 2026, 140 companies name REXX 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 · 225 postings
Hiring on it, last 30 days
124 companies
Most often alongside
z/OS · 140 companies
140companies show REXX, all sources
0on their website or in DNS records
140name it in their own job postings
384postings naming REXX, last 90 days
02 — Two ways we see a tool

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

Job postings140

Companies whose own postings say the team works in REXX. 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 REXX. The rest of the posting population (140) runs REXX without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on REXX

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

Ministère de l'Économie, des Finances et de la Souveraineté industrielle, énergétique et numériqueGovernment agencies & ministries · Paris 12, France10,001+ employeesU.S. BankRetail & commercial banks · Minneapolis, United States10,001+ employeesSailPointCybersecurity iam software · Austin, United States1001-5000 employeesHuntington BankRetail & commercial banks · United States10,001+ employeesM&T BankRetail & commercial banks · Buffalo, United States10,001+ employeesDataportGovtech public sector software · Altenholz, Germany5001-10000 employeesBRMiIT services & consulting · Frederick, United States51-200 employeesPKO Bank PolskiRetail & commercial banks · Warszawa, Poland10,001+ employeesRocket MortgageMortgage & property finance · Detroit, United States10,001+ employeesTruistRetail & commercial banks · Charlotte, United States10,001+ employeesUnitedHealth GroupHealth insurance brokers · Minneapolis, United States10,001+ employeesNABRetail & commercial banks · Melbourne, Australia10,001+ employeesInfojiniIT services & consulting · 501-1000 employeesTravelers InsuranceInsurance companies underwriters · London, United Kingdom10,001+ employeesCTECIT services & consulting · United States201-500 employeesAXAInsurance companies underwriters · Köln, Germany1001-5000 employeesNavy Federal Credit UnionCredit unions · Merrifield, United States10,001+ employeesBBHWealth management general · United States5001-10000 employeesProArchMicrosoft cloud specialist · Madhapur, United States201-500 employeesARTUSInsurance companies underwriters · Baden-Baden, Germany201-500 employees
140 companies show REXX; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs REXX inside the company

The 140 companies whose postings name REXX: 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
225 · 112
Software engineering
83 · 58
Human resources
37 · 31
Engineering (non-software)
18 · 15
hospitality and food service
9 · 2
Finance & accounting
8 · 8
Data & AI
7 · 5
Product, program & project management
7 · 7
Sales
5 · 2
Quality, safety & environment
3 · 2
Posting companies by country
companiesshare
United States
6546%
Germany
4532%
France
54%
Switzerland
43%
United Kingdom
43%
Austria
21%
Australia
11%
Czechia
11%
Estonia
11%
Spain
11%
India
11%
MY
11%
Posting companies by size
companiesshare
2-10 employees
54%
11-50 employees
118%
51-200 employees
2115%
201-500 employees
1813%
501-1000 employees
1511%
1001-5000 employees
2719%
5001-10000 employees
118%
10,001+ employees
3223%
Hiring on it right now
postings
Postings, last 30 days
268
Postings, last 90 days
384
All open postings
551

124 companies opened a role that names REXX 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 REXX teams also ask for

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

08 — Programming languages

REXX 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.

140 companies name REXX 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/rexx)
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 REXX 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

REXX data: questions

How many companies use REXX?

140 as of 4 November 2026: 0 carry REXX on their website or in their DNS records and 140 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 REXX'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 REXX. 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 REXX, 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 140 with verified e-mails and a weekly feed of new REXX users is in the product. Counting is free.

Companies and people

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