Apache Pulsar VS Azure Service Bus
As of 30 October 2026, Azure Service Bus is named by 803 companies and Apache Pulsar by 131; Apache Pulsar skews to companies under 200 people (48% vs 32%), Azure Service Bus to companies over 1,000 (42% 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, Azure Service Bus 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%
- Azure Service Bus: 2–200 employees
- 32%
- Apache Pulsar: 1,000+ employees
- 34%
- Azure Service Bus: 1,000+ employees
- 42%
- Postings per company, 90 days
- 2.6 · 3.1
- 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 | Azure Service Bus | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 2 | 2% | 3 | 0% | even |
| 2-10 employees | 13 | 10% | 22 | 3% | Apache Pulsar |
| 11-50 employees | 22 | 17% | 102 | 13% | Apache Pulsar |
| 51-200 employees | 28 | 21% | 131 | 16% | Apache Pulsar |
| 201-500 employees | 9 | 7% | 121 | 15% | Azure Service Bus |
| 501-1000 employees | 13 | 10% | 83 | 10% | even |
| 1001-5000 employees | 18 | 14% | 162 | 20% | Azure Service Bus |
| 5001-10000 employees | 8 | 6% | 51 | 6% | even |
| 10,001+ employees | 18 | 14% | 128 | 16% | Azure Service Bus |
| Segment | Apache Pulsar | share | Azure Service Bus | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 64 | 49% | 373 | 46% | Apache Pulsar |
| Business & finance services | 37 | 28% | 199 | 25% | Apache Pulsar |
| Manufacturing & industry | 7 | 5% | 54 | 7% | even |
| Media & content | 7 | 5% | 13 | 2% | Apache Pulsar |
| Utilities & infrastructure | 4 | 3% | 17 | 2% | even |
| Commerce & trade | 3 | 2% | 32 | 4% | even |
| Automotive | 2 | 2% | 9 | 1% | even |
| Consumer services & leisure | 2 | 2% | 22 | 3% | even |
| Transport, logistics & rental | 2 | 2% | 20 | 2% | even |
| Public, community & associations | 1 | 1% | 17 | 2% | even |
| Health care | 1 | 1% | 22 | 3% | even |
| Property & construction | 1 | 1% | 16 | 2% | even |
| Segment | Apache Pulsar | share | Azure Service Bus | share | Leans |
|---|---|---|---|---|---|
| United States | 92 | 70% | 419 | 52% | Apache Pulsar |
| United Kingdom | 7 | 5% | 88 | 11% | Azure Service Bus |
| Portugal | 5 | 4% | – | – | outside top 12 |
| Germany | 3 | 2% | 32 | 4% | even |
| France | 3 | 2% | 18 | 2% | even |
| Belgium | 2 | 2% | 21 | 3% | even |
| Canada | 2 | 2% | 27 | 3% | even |
| India | 2 | 2% | 31 | 4% | Azure Service Bus |
| Netherlands | 2 | 2% | 19 | 2% | even |
| Argentina | 1 | 1% | – | – | outside top 12 |
| Austria | 1 | 1% | – | – | outside top 12 |
| Australia | 1 | 1% | 18 | 2% | even |
| Poland | – | – | 15 | 2% | outside top 12 |
| Sweden | – | – | 14 | 2% | outside top 12 |
| Brazil | – | – | 10 | 1% | outside top 12 |
| Segment | Apache Pulsar | share | Azure Service Bus | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 256 | 54% | 2,031 | 65% | Azure Service Bus |
| Data & AI | 91 | 19% | 237 | 8% | Apache Pulsar |
| Engineering (non-software) | 35 | 7% | 78 | 2% | Apache Pulsar |
| IT operations & business systems | 19 | 4% | 392 | 12% | Azure Service Bus |
| Marketing & communications | 7 | 1% | 3 | 0% | even |
| Product, program & project management | 5 | 1% | 42 | 1% | even |
| Sales | 5 | 1% | 13 | 0% | even |
| Logistics warehouse and transport | 3 | 1% | – | – | outside top 12 |
| Business development & strategy | 2 | 0% | – | – | outside top 12 |
| Customer service & success | 2 | 0% | 6 | 0% | even |
| General management & consulting | 2 | 0% | 7 | 0% | even |
| Manufacturing and production | 2 | 0% | – | – | outside top 12 |
| Construction and civil | – | – | 5 | 0% | outside top 12 |
| Unclassified | – | – | 3 | 0% | outside top 12 |
| Design & UX | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using Apache Pulsar →
Companies using Azure Service Bus →
message brokers streaming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Azure Service Bus is named by 803 companies in job postings and Apache Pulsar by 131; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/apache-pulsar-vs-azure-service-bus)
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 Azure Service Bus: questions
Which is more used, Apache Pulsar or Azure Service Bus?
By companies naming it in their own job postings, Azure Service Bus (803) over Apache Pulsar (131). By website-and-DNS footprint, Azure Service Bus (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 32% for Azure Service Bus. 34% of Apache Pulsar companies have over 1,000 employees, against 42% for Azure Service Bus.
Do companies run both?
0 companies name both in their postings, usually Apache Pulsar in marketing and Azure Service Bus 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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