Tools · plc programming

Companies using CODESYS_

As of 4 November 2026, 306 companies name CODESYS 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
Engineering (non-software) · 443 postings
Hiring on it, last 30 days
236 companies
Most often alongside
Modbus · 101 companies
306companies show CODESYS, all sources
0on their website or in DNS records
306name it in their own job postings
544postings naming CODESYS, last 90 days
02 — Two ways we see a tool

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

Job postings306

Companies whose own postings say the team works in CODESYS. 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 CODESYS. The rest of the posting population (306) runs CODESYS without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on CODESYS

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

Sunreef YachtsShipbuilding & ship repair · Gdańsk, Poland1001-5000 employeesTII GroupHeavy haulage & project cargo · Nangal Shahbazpur, Germany201-500 employeesThe Will-Burt CompanyLED luminaire manufacturers · United States201-500 employeesPacksizeCustom packaging boxes · Salt Lake City, Germany501-1000 employeesModineHVAC components & general manufacturing · United States10,001+ employeesThelen GruppeGeneral property developers · Essen, Germany5001-10000 employeesMattson TechnologySemiconductor manufacturers · United States501-1000 employeesVARDShipbuilding & ship repair · Ålesund, Norway10,001+ employees1st Avenue Power (1AP)Solar pv installers · Angeles City, United States201-500 employeesENGIERenewable power generation operators · France10,001+ employeesGroupe LacroixCustom packaging boxes · Bois-d'Amont, France1001-5000 employeesHitachi RailRailway rolling stock & components · United Kingdom10,001+ employeesDOLLOther vehicle & transport equipment manufacturing · Oppenau, Germany201-500 employeesJansen GroupWindow & door manufacturers · Surwold, Germany201-500 employeesHT GroupMedical device manufacturers · Heideck, Germany201-500 employeesBoschIoT device manufacturers · Stuttgart, Germany10,001+ employeesStemOther energy asset services · Houston, United States501-1000 employeesFirmengruppe Max BöglPrefabricated house manufacturers · Sengenthal, Germany5001-10000 employeesVoithConveyor material handling · Heidenheim an der Brenz, Germany10,001+ employeesVINCI EnergiesRenewable power generation operators · Frankfurt am Main, Germany1001-5000 employees
306 companies show CODESYS; 0 of them have over 1,000 employees.

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06 — Job-posting evidence

Who runs CODESYS inside the company

The 306 companies whose postings name CODESYS: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Engineering (non-software)
443 · 243
skilled trades and field service
90 · 59
Software engineering
86 · 70
Sales
10 · 6
Unclassified
8 · 6
Product, program & project management
5 · 4
Customer service & success
3 · 3
Education & training
3 · 3
IT operations & business systems
3 · 2
construction and civil
2 · 1
Posting companies by country
companiesshare
Germany
11638%
United States
9230%
Netherlands
165%
France
124%
United Kingdom
114%
Austria
72%
Canada
62%
Sweden
52%
Italy
41%
Belgium
31%
Switzerland
31%
Spain
31%
Posting companies by size
companiesshare
Self-employed
41%
2-10 employees
279%
11-50 employees
5418%
51-200 employees
6923%
201-500 employees
3612%
501-1000 employees
258%
1001-5000 employees
3812%
5001-10000 employees
145%
10,001+ employees
3913%
Hiring on it right now
postings
Postings, last 30 days
402
Postings, last 90 days
544
All open postings
758

236 companies opened a role that names CODESYS 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 CODESYS teams also ask for

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

08 — plc programming

CODESYS 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.

306 companies name CODESYS 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/codesys)
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 CODESYS 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

CODESYS data: questions

How many companies use CODESYS?

306 as of 4 November 2026: 0 carry CODESYS on their website or in their DNS records and 306 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 CODESYS'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 CODESYS. 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 CODESYS, 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 306 with verified e-mails and a weekly feed of new CODESYS users is in the product. Counting is free.

Companies and people

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