Shipvane · 4 AE roles
Marco E. · joined Cargolio
Fleetora · first roles in DEIBM DOORS VS SysML_
As of 4 November 2026, SysML is named by 482 companies and IBM DOORS by 638; IBM DOORS skews to companies under 200 people (39% vs 45%), SysML to companies over 1,000 (31% vs 36%).
As of 4 November 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: IBM DOORS's script and mail records show on hundreds of thousands of small sites, SysML rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- IBM DOORS: 2–200 employees
- 39%
- SysML: 2–200 employees
- 45%
- IBM DOORS: 1,000+ employees
- 36%
- SysML: 1,000+ employees
- 31%
- Postings per company, 90 days
- 7.6 · 5.4
- 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 | IBM DOORS | share | SysML | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 15 | 2% | 8 | 2% | even |
| 2-10 employees | 49 | 8% | 36 | 7% | even |
| 11-50 employees | 77 | 12% | 63 | 13% | even |
| 51-200 employees | 123 | 19% | 116 | 24% | SysML |
| 201-500 employees | 92 | 14% | 80 | 17% | SysML |
| 501-1000 employees | 54 | 8% | 29 | 6% | IBM DOORS |
| 1001-5000 employees | 83 | 13% | 58 | 12% | even |
| 5001-10000 employees | 37 | 6% | 21 | 4% | even |
| 10,001+ employees | 108 | 17% | 71 | 15% | IBM DOORS |
| Segment | IBM DOORS | share | SysML | share | Leans |
|---|---|---|---|---|---|
| Manufacturing & industry | 275 | 43% | 203 | 42% | even |
| Business & finance services | 123 | 19% | 78 | 16% | IBM DOORS |
| Technology & software | 107 | 17% | 119 | 25% | SysML |
| Automotive | 48 | 8% | 24 | 5% | IBM DOORS |
| Property & construction | 16 | 3% | 5 | 1% | even |
| Transport, logistics & rental | 16 | 3% | 10 | 2% | even |
| Public, community & associations | 14 | 2% | 20 | 4% | even |
| Media & content | 12 | 2% | 6 | 1% | even |
| Utilities & infrastructure | 12 | 2% | 9 | 2% | even |
| Commerce & trade | 6 | 1% | 4 | 1% | even |
| Consumer services & leisure | 5 | 1% | 3 | 1% | even |
| Health care | 3 | 0% | 1 | 0% | even |
| Segment | IBM DOORS | share | SysML | share | Leans |
|---|---|---|---|---|---|
| United States | 374 | 59% | 332 | 69% | SysML |
| Germany | 56 | 9% | 40 | 8% | even |
| United Kingdom | 42 | 7% | 29 | 6% | even |
| France | 32 | 5% | 17 | 4% | even |
| Canada | 19 | 3% | 7 | 1% | even |
| Spain | 14 | 2% | 3 | 1% | even |
| Sweden | 10 | 2% | 4 | 1% | even |
| Australia | 8 | 1% | – | – | outside top 12 |
| India | 7 | 1% | 4 | 1% | even |
| Netherlands | 7 | 1% | 6 | 1% | even |
| Belgium | 6 | 1% | – | – | outside top 12 |
| Italy | 6 | 1% | – | – | outside top 12 |
| Austria | – | – | 5 | 1% | outside top 12 |
| Poland | – | – | 4 | 1% | outside top 12 |
| Switzerland | – | – | 2 | 0% | outside top 12 |
| Segment | IBM DOORS | share | SysML | share | Leans |
|---|---|---|---|---|---|
| Engineering (non-software) | 3,911 | 68% | 2,109 | 68% | even |
| Software engineering | 608 | 11% | 346 | 11% | even |
| IT operations & business systems | 209 | 4% | 159 | 5% | even |
| Quality, safety & environment | 146 | 3% | 31 | 1% | even |
| Product, program & project management | 102 | 2% | 25 | 1% | even |
| Data & AI | 28 | 0% | 28 | 1% | even |
| Administration & office | 27 | 0% | 4 | 0% | even |
| Sales | 16 | 0% | 12 | 0% | even |
| construction and civil | 8 | 0% | 4 | 0% | even |
| Customer service & success | 8 | 0% | – | – | outside top 12 |
| arts media and entertainment | 6 | 0% | – | – | outside top 12 |
| skilled trades and field service | 6 | 0% | – | – | outside top 12 |
| Design & UX | 4 | 0% | 1 | 0% | even |
| General management & consulting | 3 | 0% | 2 | 0% | even |
| Legal, compliance & risk | 1 | 0% | – | – | outside top 12 |
| manufacturing and production | 1 | 0% | – | – | outside top 12 |
| procurement and purchasing | 1 | 0% | – | – | outside top 12 |
| Travel, leisure & events | 1 | 0% | – | – | outside top 12 |
| Unclassified | – | – | 2 | 0% | outside top 12 |
| Education & training | – | – | 1 | 0% | outside top 12 |
| logistics warehouse and transport | – | – | 1 | 0% | outside top 12 |
| public safety and protective services | – | – | 1 | 0% | outside top 12 |
| research and science | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using IBM DOORS →
Companies using SysML →
requirements mbse ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
SysML is named by 482 companies in job postings and IBM DOORS by 638; 242 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/ibm-doors-vs-sysml)
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.
IBM DOORS vs SysML: questions
Which is more used, IBM DOORS or SysML?
By companies naming it in their own job postings, IBM DOORS (638) over SysML (482). By website-and-DNS footprint, SysML (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses IBM DOORS?
39% of IBM DOORS companies have 2 to 200 employees, against 45% for SysML. 36% of IBM DOORS companies have over 1,000 employees, against 31% for SysML.
Do companies run both?
242 companies name both in their postings, usually IBM DOORS in marketing and SysML 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.
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