Apache Pulsar VS Java Message Service
As of 30 October 2026, Java Message Service is named by 425 companies and Apache Pulsar by 131; Apache Pulsar skews to companies under 200 people (48% vs 42%), Java Message Service to companies over 1,000 (31% vs 34%).
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: Apache Pulsar's script and mail records show on hundreds of thousands of small sites, Java Message Service rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Apache Pulsar: 2–200 employees
- 48%
- Java Message Service: 2–200 employees
- 42%
- Apache Pulsar: 1,000+ employees
- 34%
- Java Message Service: 1,000+ employees
- 31%
- Postings per company, 90 days
- 2.6 · 2.7
- 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 | Apache Pulsar | share | Java Message Service | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 2 | 2% | 6 | 1% | even |
| 2-10 employees | 13 | 10% | 24 | 6% | Apache Pulsar |
| 11-50 employees | 22 | 17% | 65 | 15% | even |
| 51-200 employees | 28 | 21% | 90 | 21% | even |
| 201-500 employees | 9 | 7% | 69 | 16% | Java Message Service |
| 501-1000 employees | 13 | 10% | 39 | 9% | even |
| 1001-5000 employees | 18 | 14% | 51 | 12% | even |
| 5001-10000 employees | 8 | 6% | 18 | 4% | even |
| 10,001+ employees | 18 | 14% | 63 | 15% | even |
| Segment | Apache Pulsar | share | Java Message Service | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 64 | 49% | 257 | 60% | Java Message Service |
| Business & finance services | 37 | 28% | 91 | 21% | Apache Pulsar |
| Manufacturing & industry | 7 | 5% | 23 | 5% | even |
| Media & content | 7 | 5% | 6 | 1% | Apache Pulsar |
| Utilities & infrastructure | 4 | 3% | 8 | 2% | even |
| Commerce & trade | 3 | 2% | 9 | 2% | even |
| Automotive | 2 | 2% | 1 | 0% | even |
| Consumer services & leisure | 2 | 2% | 10 | 2% | even |
| Transport, logistics & rental | 2 | 2% | 5 | 1% | even |
| Public, community & associations | 1 | 1% | 7 | 2% | even |
| Health care | 1 | 1% | 3 | 1% | even |
| Property & construction | 1 | 1% | 5 | 1% | even |
| Segment | Apache Pulsar | share | Java Message Service | share | Leans |
|---|---|---|---|---|---|
| United States | 92 | 70% | 255 | 60% | Apache Pulsar |
| United Kingdom | 7 | 5% | 26 | 6% | even |
| Portugal | 5 | 4% | – | – | outside top 12 |
| Germany | 3 | 2% | 13 | 3% | even |
| France | 3 | 2% | 17 | 4% | even |
| Belgium | 2 | 2% | 4 | 1% | even |
| Canada | 2 | 2% | 8 | 2% | even |
| India | 2 | 2% | 21 | 5% | Java Message Service |
| Netherlands | 2 | 2% | – | – | outside top 12 |
| Argentina | 1 | 1% | – | – | outside top 12 |
| Austria | 1 | 1% | – | – | outside top 12 |
| Australia | 1 | 1% | 4 | 1% | even |
| Sweden | – | – | 8 | 2% | outside top 12 |
| Switzerland | – | – | 7 | 2% | outside top 12 |
| Poland | – | – | 6 | 1% | outside top 12 |
| Singapore | – | – | 5 | 1% | outside top 12 |
| Segment | Apache Pulsar | share | Java Message Service | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 256 | 54% | 1,594 | 73% | Java Message Service |
| Data & AI | 91 | 19% | 28 | 1% | Apache Pulsar |
| Engineering (non-software) | 35 | 7% | 22 | 1% | Apache Pulsar |
| IT operations & business systems | 19 | 4% | 214 | 10% | Java Message Service |
| Marketing & communications | 7 | 1% | – | – | outside top 12 |
| Product, program & project management | 5 | 1% | 8 | 0% | even |
| Sales | 5 | 1% | 7 | 0% | even |
| Logistics warehouse and transport | 3 | 1% | 4 | 0% | even |
| Business development & strategy | 2 | 0% | – | – | outside top 12 |
| Customer service & success | 2 | 0% | 4 | 0% | even |
| General management & consulting | 2 | 0% | – | – | outside top 12 |
| Manufacturing and production | 2 | 0% | – | – | outside top 12 |
| Public safety and protective services | – | – | 5 | 0% | outside top 12 |
| Construction and civil | – | – | 3 | 0% | outside top 12 |
| Design & UX | – | – | 3 | 0% | outside top 12 |
| Finance & accounting | – | – | 3 | 0% | outside top 12 |
The companies behind each column
Companies using Apache Pulsar →
Companies using Java Message Service →
message brokers streaming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Java Message Service is named by 425 companies in job postings and Apache Pulsar by 131; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/apache-pulsar-vs-jms)
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.
Apache Pulsar vs Java Message Service: questions
Which is more used, Apache Pulsar or Java Message Service?
By companies naming it in their own job postings, Java Message Service (425) over Apache Pulsar (131). By website-and-DNS footprint, Java Message Service (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Apache Pulsar?
48% of Apache Pulsar companies have 2 to 200 employees, against 42% for Java Message Service. 34% of Apache Pulsar companies have over 1,000 employees, against 31% for Java Message Service.
Do companies run both?
0 companies name both in their postings, usually Apache Pulsar in marketing and Java Message Service 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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