ONNX Runtime VS vLLM
As of 2 November 2026, vLLM is named by 582 companies and ONNX Runtime by 146; ONNX Runtime skews to companies under 200 people (55% vs 56%), vLLM to companies over 1,000 (21% vs 25%).
As of 2 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: ONNX Runtime's script and mail records show on hundreds of thousands of small sites, vLLM rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- ONNX Runtime: 2–200 employees
- 55%
- vLLM: 2–200 employees
- 56%
- ONNX Runtime: 1,000+ employees
- 25%
- vLLM: 1,000+ employees
- 21%
- Postings per company, 90 days
- 2.9 · 4.5
- 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 | ONNX Runtime | share | vLLM | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 4 | 3% | 22 | 4% | even |
| 2-10 employees | 22 | 15% | 108 | 19% | vLLM |
| 11-50 employees | 30 | 21% | 104 | 18% | ONNX Runtime |
| 51-200 employees | 29 | 20% | 115 | 20% | even |
| 201-500 employees | 12 | 8% | 61 | 10% | vLLM |
| 501-1000 employees | 12 | 8% | 50 | 9% | even |
| 1001-5000 employees | 15 | 10% | 67 | 12% | even |
| 5001-10000 employees | 7 | 5% | 17 | 3% | even |
| 10,001+ employees | 15 | 10% | 38 | 7% | ONNX Runtime |
| Segment | ONNX Runtime | share | vLLM | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 69 | 47% | 377 | 65% | vLLM |
| Manufacturing & industry | 38 | 26% | 38 | 7% | ONNX Runtime |
| Business & finance services | 14 | 10% | 71 | 12% | vLLM |
| Automotive | 6 | 4% | 2 | 0% | ONNX Runtime |
| Public, community & associations | 5 | 3% | 32 | 5% | vLLM |
| Media & content | 5 | 3% | 23 | 4% | even |
| Commerce & trade | 3 | 2% | 7 | 1% | even |
| Consumer services & leisure | 2 | 1% | 10 | 2% | even |
| Utilities & infrastructure | 2 | 1% | 11 | 2% | even |
| Property & construction | 1 | 1% | 2 | 0% | even |
| Transport, logistics & rental | 1 | 1% | – | – | outside top 12 |
| Health care | – | – | 6 | 1% | outside top 12 |
| Hospitality & travel | – | – | 3 | 1% | outside top 12 |
| Segment | ONNX Runtime | share | vLLM | share | Leans |
|---|---|---|---|---|---|
| United States | 103 | 71% | 391 | 67% | ONNX Runtime |
| United Kingdom | 9 | 6% | 42 | 7% | even |
| Canada | 7 | 5% | 6 | 1% | ONNX Runtime |
| India | 5 | 3% | 16 | 3% | even |
| Germany | 4 | 3% | 19 | 3% | even |
| Australia | 2 | 1% | 6 | 1% | even |
| Spain | 2 | 1% | 7 | 1% | even |
| Singapore | 2 | 1% | 11 | 2% | even |
| TH | 2 | 1% | – | – | outside top 12 |
| United Arab Emirates | 1 | 1% | – | – | outside top 12 |
| Brazil | 1 | 1% | 5 | 1% | even |
| Finland | 1 | 1% | – | – | outside top 12 |
| Switzerland | – | – | 10 | 2% | outside top 12 |
| France | – | – | 8 | 1% | outside top 12 |
| South Korea | – | – | 5 | 1% | outside top 12 |
| Segment | ONNX Runtime | share | vLLM | share | Leans |
|---|---|---|---|---|---|
| Data & AI | 288 | 56% | 1,698 | 52% | ONNX Runtime |
| Software engineering | 109 | 21% | 741 | 23% | even |
| Engineering (non-software) | 25 | 5% | 46 | 1% | ONNX Runtime |
| IT operations & business systems | 9 | 2% | 186 | 6% | vLLM |
| Product, program & project management | 9 | 2% | 84 | 3% | even |
| Sales | 4 | 1% | 54 | 2% | even |
| Research and science | 2 | 0% | 10 | 0% | even |
| General management & consulting | 1 | 0% | 3 | 0% | even |
| Marketing & communications | – | – | 21 | 1% | outside top 12 |
| Logistics warehouse and transport | – | – | 6 | 0% | outside top 12 |
| Finance & accounting | – | – | 4 | 0% | outside top 12 |
| Unclassified | – | – | 4 | 0% | outside top 12 |
| Human resources | – | – | 3 | 0% | outside top 12 |
| Business development & strategy | – | – | 2 | 0% | outside top 12 |
| Arts media and entertainment | – | – | 1 | 0% | outside top 12 |
| Design & UX | – | – | 1 | 0% | outside top 12 |
| Education & training | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using ONNX Runtime →
Companies using vLLM →
model serving gateways ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
vLLM is named by 582 companies in job postings and ONNX Runtime by 146; 60 name both. (Breaknorm, 2 November 2026, https://breaknorm.co/compare/onnx-runtime-vs-vllm)
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.
ONNX Runtime vs vLLM: questions
Which is more used, ONNX Runtime or vLLM?
By companies naming it in their own job postings, vLLM (582) over ONNX Runtime (146). By website-and-DNS footprint, vLLM (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses ONNX Runtime?
55% of ONNX Runtime companies have 2 to 200 employees, against 56% for vLLM. 25% of ONNX Runtime companies have over 1,000 employees, against 21% for vLLM.
Do companies run both?
60 companies name both in their postings, usually ONNX Runtime in marketing and vLLM 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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