CODESYS VS Siemens TIA Portal
As of 30 October 2026, Siemens TIA Portal is named by 960 companies and CODESYS by 250; CODESYS skews to companies under 200 people (49% vs 40%), Siemens TIA Portal to companies over 1,000 (37% vs 31%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: CODESYS's script and mail records show on hundreds of thousands of small sites, Siemens TIA Portal rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- CODESYS: 2–200 employees
- 49%
- Siemens TIA Portal: 2–200 employees
- 40%
- CODESYS: 1,000+ employees
- 31%
- Siemens TIA Portal: 1,000+ employees
- 37%
- Postings per company, 90 days
- 1.9 · 2.3
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | CODESYS | share | Siemens TIA Portal | share | Leans |
|---|---|---|---|---|---|
| 2-10 employees | 17 | 7% | 81 | 8% | even |
| 11-50 employees | 47 | 19% | 123 | 13% | CODESYS |
| 51-200 employees | 58 | 23% | 180 | 19% | CODESYS |
| 201-500 employees | 30 | 12% | 128 | 13% | even |
| 501-1000 employees | 21 | 8% | 95 | 10% | even |
| 1001-5000 employees | 34 | 14% | 138 | 14% | even |
| 5001-10000 employees | 13 | 5% | 65 | 7% | even |
| 10,001+ employees | 30 | 12% | 149 | 16% | Siemens TIA Portal |
| Self-employed | – | – | 1 | 0% | outside top 12 |
| Segment | CODESYS | share | Siemens TIA Portal | share | Leans |
|---|---|---|---|---|---|
| Manufacturing & industry | 153 | 61% | 623 | 65% | Siemens TIA Portal |
| Business & finance services | 19 | 8% | 83 | 9% | even |
| Utilities & infrastructure | 15 | 6% | 39 | 4% | even |
| Property & construction | 12 | 5% | 50 | 5% | even |
| Commerce & trade | 11 | 4% | 37 | 4% | even |
| Technology & software | 11 | 4% | 22 | 2% | CODESYS |
| Automotive | 9 | 4% | 48 | 5% | even |
| Public, community & associations | 6 | 2% | 18 | 2% | even |
| Transport, logistics & rental | 6 | 2% | 10 | 1% | even |
| Media & content | 5 | 2% | 9 | 1% | even |
| Consumer services & leisure | 2 | 1% | 8 | 1% | even |
| Agriculture & forestry | 1 | 0% | 5 | 1% | even |
| Segment | CODESYS | share | Siemens TIA Portal | share | Leans |
|---|---|---|---|---|---|
| Germany | 99 | 40% | 393 | 41% | even |
| United States | 73 | 29% | 240 | 25% | CODESYS |
| Netherlands | 15 | 6% | 31 | 3% | CODESYS |
| France | 11 | 4% | 41 | 4% | even |
| United Kingdom | 11 | 4% | 32 | 3% | even |
| Austria | 6 | 2% | 44 | 5% | Siemens TIA Portal |
| Canada | 5 | 2% | 15 | 2% | even |
| Sweden | 4 | 2% | – | – | outside top 12 |
| Switzerland | 3 | 1% | 24 | 3% | even |
| Italy | 3 | 1% | 24 | 3% | even |
| Bulgaria | 2 | 1% | – | – | outside top 12 |
| Czechia | 2 | 1% | – | – | outside top 12 |
| Spain | – | – | 16 | 2% | outside top 12 |
| Belgium | – | – | 13 | 1% | outside top 12 |
| Poland | – | – | 13 | 1% | outside top 12 |
| Segment | CODESYS | share | Siemens TIA Portal | share | Leans |
|---|---|---|---|---|---|
| Engineering (non-software) | 399 | 61% | 1,401 | 50% | CODESYS |
| Skilled trades and field service | 76 | 12% | 745 | 26% | Siemens TIA Portal |
| Software engineering | 72 | 11% | 119 | 4% | CODESYS |
| Sales | 9 | 1% | 8 | 0% | even |
| Unclassified | 7 | 1% | 5 | 0% | even |
| Product, program & project management | 5 | 1% | 13 | 0% | even |
| Customer service & success | 3 | 0% | 10 | 0% | even |
| IT operations & business systems | 3 | 0% | 19 | 1% | even |
| Construction and civil | 2 | 0% | 9 | 0% | even |
| Data & AI | 2 | 0% | – | – | outside top 12 |
| Education & training | 2 | 0% | 16 | 1% | even |
| Quality, safety & environment | 1 | 0% | 9 | 0% | even |
| Manufacturing and production | – | – | 6 | 0% | outside top 12 |
The companies behind each column
Companies using CODESYS →
Companies using Siemens TIA Portal →
plc programming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Siemens TIA Portal is named by 960 companies in job postings and CODESYS by 250; 87 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/codesys-vs-siemens-tia-portal)
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 →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
CODESYS vs Siemens TIA Portal: questions
Which is more used, CODESYS or Siemens TIA Portal?
By companies naming it in their own job postings, Siemens TIA Portal (960) over CODESYS (250). By website-and-DNS footprint, Siemens TIA Portal (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses CODESYS?
49% of CODESYS companies have 2 to 200 employees, against 40% for Siemens TIA Portal. 31% of CODESYS companies have over 1,000 employees, against 37% for Siemens TIA Portal.
Do companies run both?
87 companies name both in their postings, usually CODESYS in marketing and Siemens TIA Portal in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
Get either list your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on either tool,
with the person who owns it
Filter on CODESYS or Siemens TIA Portal. Start free, no card.