DICOM VS HL7
As of 4 November 2026, HL7 is named by 1,126 companies and DICOM by 405; DICOM skews to companies under 200 people (39% vs 43%), HL7 to companies over 1,000 (34% vs 43%).
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: DICOM's script and mail records show on hundreds of thousands of small sites, HL7 rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- DICOM: 2–200 employees
- 39%
- HL7: 2–200 employees
- 43%
- DICOM: 1,000+ employees
- 43%
- HL7: 1,000+ employees
- 34%
- Postings per company, 90 days
- 2.6 · 2.4
- 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 | DICOM | share | HL7 | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 6 | 1% | 19 | 2% | even |
| 2-10 employees | 27 | 7% | 96 | 9% | even |
| 11-50 employees | 51 | 13% | 158 | 14% | even |
| 51-200 employees | 78 | 19% | 230 | 20% | even |
| 201-500 employees | 36 | 9% | 136 | 12% | HL7 |
| 501-1000 employees | 31 | 8% | 107 | 10% | even |
| 1001-5000 employees | 75 | 19% | 203 | 18% | even |
| 5001-10000 employees | 32 | 8% | 57 | 5% | DICOM |
| 10,001+ employees | 69 | 17% | 120 | 11% | DICOM |
| Segment | DICOM | share | HL7 | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 145 | 36% | 564 | 50% | HL7 |
| Health care | 136 | 34% | 313 | 28% | DICOM |
| Manufacturing & industry | 53 | 13% | 43 | 4% | DICOM |
| Public, community & associations | 23 | 6% | 38 | 3% | DICOM |
| Business & finance services | 21 | 5% | 121 | 11% | HL7 |
| Consumer services & leisure | 16 | 4% | 22 | 2% | even |
| Media & content | 5 | 1% | 12 | 1% | even |
| Property & construction | 3 | 1% | 4 | 0% | even |
| Commerce & trade | 2 | 0% | 3 | 0% | even |
| Utilities & infrastructure | 1 | 0% | 3 | 0% | even |
| Transport, logistics & rental | – | – | 2 | 0% | outside top 12 |
| Hospitality & travel | – | – | 1 | 0% | outside top 12 |
| Segment | DICOM | share | HL7 | share | Leans |
|---|---|---|---|---|---|
| United States | 240 | 59% | 820 | 73% | HL7 |
| Germany | 36 | 9% | 57 | 5% | DICOM |
| Canada | 18 | 4% | 37 | 3% | even |
| United Kingdom | 15 | 4% | 36 | 3% | even |
| France | 10 | 2% | 16 | 1% | even |
| Switzerland | 9 | 2% | 12 | 1% | even |
| Australia | 7 | 2% | 14 | 1% | even |
| Spain | 6 | 1% | 9 | 1% | even |
| Netherlands | 6 | 1% | 8 | 1% | even |
| Poland | 5 | 1% | – | – | outside top 12 |
| Brazil | 4 | 1% | – | – | outside top 12 |
| India | 4 | 1% | 14 | 1% | even |
| Sweden | – | – | 7 | 1% | outside top 12 |
| Belgium | – | – | 5 | 0% | outside top 12 |
| Segment | DICOM | share | HL7 | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 257 | 20% | 1,050 | 30% | HL7 |
| IT operations & business systems | 160 | 12% | 496 | 14% | even |
| Healthcare clinical | 120 | 9% | 21 | 1% | DICOM |
| Data & AI | 109 | 8% | 520 | 15% | HL7 |
| Product, program & project management | 79 | 6% | 333 | 10% | HL7 |
| Skilled trades and field service | 47 | 4% | 25 | 1% | DICOM |
| Customer service & success | 43 | 3% | 86 | 2% | even |
| Research and science | 34 | 3% | 10 | 0% | DICOM |
| Sales | 33 | 3% | 88 | 3% | even |
| Engineering (non-software) | 24 | 2% | 44 | 1% | even |
| General management & consulting | 8 | 1% | 24 | 1% | even |
| Education & training | 7 | 1% | 8 | 0% | even |
| Administration & office | 6 | 0% | 5 | 0% | even |
| Finance & accounting | 5 | 0% | 8 | 0% | even |
| Marketing & communications | 5 | 0% | 2 | 0% | even |
| Quality, safety & environment | 5 | 0% | 10 | 0% | even |
| Business development & strategy | 4 | 0% | 16 | 0% | even |
| Arts media and entertainment | 2 | 0% | 2 | 0% | even |
| Design & UX | 2 | 0% | 4 | 0% | even |
| Human resources | 2 | 0% | – | – | outside top 12 |
| Procurement and purchasing | 2 | 0% | 2 | 0% | even |
| Agriculture and environment | 1 | 0% | – | – | outside top 12 |
| Unclassified | 1 | 0% | 9 | 0% | even |
| Construction and civil | – | – | 1 | 0% | outside top 12 |
| Legal, compliance & risk | – | – | 1 | 0% | outside top 12 |
| Manufacturing and production | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using DICOM →
Companies using HL7 →
healthcare interoperability ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
HL7 is named by 1,126 companies in job postings and DICOM by 405; 310 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/dicom-vs-hl7)
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.
DICOM vs HL7: questions
Which is more used, DICOM or HL7?
By companies naming it in their own job postings, HL7 (1,126) over DICOM (405). By website-and-DNS footprint, HL7 (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses DICOM?
39% of DICOM companies have 2 to 200 employees, against 43% for HL7. 43% of DICOM companies have over 1,000 employees, against 34% for HL7.
Do companies run both?
310 companies name both in their postings, usually DICOM in marketing and HL7 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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