Amazon MSK VS Apache Pulsar
As of 30 October 2026, Apache Pulsar is named by 131 companies and Amazon MSK by 242; Amazon MSK skews to companies under 200 people (31% vs 48%), Apache Pulsar to companies over 1,000 (34% vs 40%).
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: Amazon MSK's script and mail records show on hundreds of thousands of small sites, Apache Pulsar rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Amazon MSK: 2–200 employees
- 31%
- Apache Pulsar: 2–200 employees
- 48%
- Amazon MSK: 1,000+ employees
- 40%
- Apache Pulsar: 1,000+ employees
- 34%
- Postings per company, 90 days
- 2.7 · 2.6
- 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 | Amazon MSK | share | Apache Pulsar | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 0% | 2 | 2% | even |
| 2-10 employees | 10 | 4% | 13 | 10% | Apache Pulsar |
| 11-50 employees | 21 | 9% | 22 | 17% | Apache Pulsar |
| 51-200 employees | 43 | 18% | 28 | 21% | Apache Pulsar |
| 201-500 employees | 39 | 16% | 9 | 7% | Amazon MSK |
| 501-1000 employees | 31 | 13% | 13 | 10% | Amazon MSK |
| 1001-5000 employees | 45 | 19% | 18 | 14% | Amazon MSK |
| 5001-10000 employees | 16 | 7% | 8 | 6% | even |
| 10,001+ employees | 36 | 15% | 18 | 14% | even |
| Segment | Amazon MSK | share | Apache Pulsar | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 125 | 52% | 64 | 49% | Amazon MSK |
| Business & finance services | 52 | 21% | 37 | 28% | Apache Pulsar |
| Health care | 20 | 8% | 1 | 1% | Amazon MSK |
| Manufacturing & industry | 8 | 3% | 7 | 5% | Apache Pulsar |
| Transport, logistics & rental | 7 | 3% | 2 | 2% | even |
| Utilities & infrastructure | 7 | 3% | 4 | 3% | even |
| Media & content | 5 | 2% | 7 | 5% | Apache Pulsar |
| Automotive | 4 | 2% | 2 | 2% | even |
| Public, community & associations | 4 | 2% | 1 | 1% | even |
| Consumer services & leisure | 4 | 2% | 2 | 2% | even |
| Commerce & trade | 3 | 1% | 3 | 2% | even |
| Property & construction | 2 | 1% | 1 | 1% | even |
| Segment | Amazon MSK | share | Apache Pulsar | share | Leans |
|---|---|---|---|---|---|
| United States | 157 | 65% | 92 | 70% | Apache Pulsar |
| United Kingdom | 21 | 9% | 7 | 5% | Amazon MSK |
| Canada | 10 | 4% | 2 | 2% | Amazon MSK |
| Germany | 5 | 2% | 3 | 2% | even |
| France | 5 | 2% | 3 | 2% | even |
| India | 5 | 2% | 2 | 2% | even |
| Australia | 4 | 2% | 1 | 1% | even |
| Brazil | 3 | 1% | – | – | outside top 12 |
| Switzerland | 3 | 1% | – | – | outside top 12 |
| Singapore | 3 | 1% | – | – | outside top 12 |
| Bulgaria | 2 | 1% | – | – | outside top 12 |
| China | 2 | 1% | – | – | outside top 12 |
| Portugal | – | – | 5 | 4% | outside top 12 |
| Belgium | – | – | 2 | 2% | outside top 12 |
| Netherlands | – | – | 2 | 2% | outside top 12 |
| Argentina | – | – | 1 | 1% | outside top 12 |
| Austria | – | – | 1 | 1% | outside top 12 |
| Segment | Amazon MSK | share | Apache Pulsar | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 283 | 36% | 256 | 54% | Apache Pulsar |
| Data & AI | 201 | 26% | 91 | 19% | Amazon MSK |
| Healthcare clinical | 118 | 15% | – | – | outside top 12 |
| IT operations & business systems | 69 | 9% | 19 | 4% | Amazon MSK |
| Product, program & project management | 9 | 1% | 5 | 1% | even |
| Sales | 7 | 1% | 5 | 1% | even |
| Engineering (non-software) | 4 | 1% | 35 | 7% | Apache Pulsar |
| Marketing & communications | 4 | 1% | 7 | 1% | even |
| Business development & strategy | 3 | 0% | 2 | 0% | even |
| Customer service & success | 3 | 0% | 2 | 0% | even |
| Social care and community | 3 | 0% | – | – | outside top 12 |
| Finance & accounting | 2 | 0% | – | – | outside top 12 |
| Logistics warehouse and transport | – | – | 3 | 1% | outside top 12 |
| General management & consulting | – | – | 2 | 0% | outside top 12 |
| Manufacturing and production | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using Amazon MSK →
Companies using Apache Pulsar →
message brokers streaming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Apache Pulsar is named by 131 companies in job postings and Amazon MSK by 242; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/amazon-msk-vs-apache-pulsar)
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.
Amazon MSK vs Apache Pulsar: questions
Which is more used, Amazon MSK or Apache Pulsar?
By companies naming it in their own job postings, Amazon MSK (242) over Apache Pulsar (131). By website-and-DNS footprint, Apache Pulsar (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Amazon MSK?
31% of Amazon MSK companies have 2 to 200 employees, against 48% for Apache Pulsar. 40% of Amazon MSK companies have over 1,000 employees, against 34% for Apache Pulsar.
Do companies run both?
0 companies name both in their postings, usually Amazon MSK in marketing and Apache Pulsar 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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