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Amazon DocumentDB VS Apache Cassandra_
As of 30 October 2026, Apache Cassandra is named by 737 companies and Amazon DocumentDB by 109; Amazon DocumentDB skews to companies under 200 people (36% vs 45%), Apache Cassandra to companies over 1,000 (33% vs 39%).
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 DocumentDB's script and mail records show on hundreds of thousands of small sites, Apache Cassandra rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Amazon DocumentDB: 2–200 employees
- 36%
- Apache Cassandra: 2–200 employees
- 45%
- Amazon DocumentDB: 1,000+ employees
- 39%
- Apache Cassandra: 1,000+ employees
- 33%
- Postings per company, 90 days
- 2.1 · 3.4
- 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 | Amazon DocumentDB | share | Apache Cassandra | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | 5 | 1% | even |
| 2-10 employees | 6 | 6% | 48 | 7% | even |
| 11-50 employees | 9 | 8% | 121 | 16% | Apache Cassandra |
| 51-200 employees | 24 | 22% | 163 | 22% | even |
| 201-500 employees | 13 | 12% | 81 | 11% | even |
| 501-1000 employees | 14 | 13% | 76 | 10% | Amazon DocumentDB |
| 1001-5000 employees | 18 | 17% | 100 | 14% | Amazon DocumentDB |
| 5001-10000 employees | 8 | 7% | 39 | 5% | Amazon DocumentDB |
| 10,001+ employees | 16 | 15% | 104 | 14% | even |
| Segment | Amazon DocumentDB | share | Apache Cassandra | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 62 | 57% | 460 | 62% | Apache Cassandra |
| Business & finance services | 29 | 27% | 130 | 18% | Amazon DocumentDB |
| Manufacturing & industry | 4 | 4% | 44 | 6% | Apache Cassandra |
| Automotive | 3 | 3% | 6 | 1% | even |
| Utilities & infrastructure | 3 | 3% | 22 | 3% | even |
| Public, community & associations | 2 | 2% | 6 | 1% | even |
| Media & content | 2 | 2% | 24 | 3% | even |
| Transport, logistics & rental | 2 | 2% | 4 | 1% | even |
| Commerce & trade | 1 | 1% | 16 | 2% | even |
| Consumer services & leisure | 1 | 1% | 12 | 2% | even |
| Health care | – | – | 6 | 1% | outside top 12 |
| Hospitality & travel | – | – | 6 | 1% | outside top 12 |
| Segment | Amazon DocumentDB | share | Apache Cassandra | share | Leans |
|---|---|---|---|---|---|
| United States | 73 | 67% | 494 | 67% | even |
| United Kingdom | 8 | 7% | 47 | 6% | even |
| Canada | 6 | 6% | 8 | 1% | Amazon DocumentDB |
| Germany | 3 | 3% | 20 | 3% | even |
| Brazil | 2 | 2% | – | – | outside top 12 |
| Spain | 2 | 2% | 7 | 1% | even |
| Singapore | 2 | 2% | 12 | 2% | even |
| United Arab Emirates | 1 | 1% | – | – | outside top 12 |
| Australia | 1 | 1% | 10 | 1% | even |
| Switzerland | 1 | 1% | – | – | outside top 12 |
| Czechia | 1 | 1% | – | – | outside top 12 |
| India | 1 | 1% | 39 | 5% | Apache Cassandra |
| France | – | – | 18 | 2% | outside top 12 |
| Italy | – | – | 12 | 2% | outside top 12 |
| Portugal | – | – | 10 | 1% | outside top 12 |
| Romania | – | – | 6 | 1% | outside top 12 |
| Segment | Amazon DocumentDB | share | Apache Cassandra | share | Leans |
|---|---|---|---|---|---|
| Software engineering | 204 | 58% | 2,222 | 52% | Amazon DocumentDB |
| IT operations & business systems | 57 | 16% | 524 | 12% | Amazon DocumentDB |
| Data & AI | 35 | 10% | 929 | 22% | Apache Cassandra |
| Sales | 10 | 3% | 33 | 1% | Amazon DocumentDB |
| Design & UX | 1 | 0% | – | – | outside top 12 |
| Engineering (non-software) | 1 | 0% | 53 | 1% | even |
| Finance & accounting | 1 | 0% | 34 | 1% | even |
| Product, program & project management | – | – | 25 | 1% | outside top 12 |
| Legal, compliance & risk | – | – | 16 | 0% | outside top 12 |
| public safety and protective services | – | – | 12 | 0% | outside top 12 |
| Customer service & success | – | – | 11 | 0% | outside top 12 |
| Quality, safety & environment | – | – | 6 | 0% | outside top 12 |
| Unclassified | – | – | 6 | 0% | outside top 12 |
The companies behind each column
Companies using Amazon DocumentDB →
Companies using Apache Cassandra →
nosql document wide column ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Apache Cassandra is named by 737 companies in job postings and Amazon DocumentDB by 109; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/amazon-documentdb-vs-apache-cassandra)
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 DocumentDB vs Apache Cassandra: questions
Which is more used, Amazon DocumentDB or Apache Cassandra?
By companies naming it in their own job postings, Apache Cassandra (737) over Amazon DocumentDB (109). By website-and-DNS footprint, Apache Cassandra (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Amazon DocumentDB?
36% of Amazon DocumentDB companies have 2 to 200 employees, against 45% for Apache Cassandra. 39% of Amazon DocumentDB companies have over 1,000 employees, against 33% for Apache Cassandra.
Do companies run both?
0 companies name both in their postings, usually Amazon DocumentDB in marketing and Apache Cassandra 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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