Compare · nosql document wide column

Apache Cassandra VS Azure Cosmos DB_

As of 4 November 2026, Azure Cosmos DB is named by 838 companies and Apache Cassandra by 1,007; Apache Cassandra skews to companies under 200 people (44% vs 35%), Azure Cosmos DB to companies over 1,000 (42% vs 33%).

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: Apache Cassandra's script and mail records show on hundreds of thousands of small sites, Azure Cosmos DB rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

Apache Cassandra: 2–200 employees
44%
Azure Cosmos DB: 2–200 employees
35%
Apache Cassandra: 1,000+ employees
33%
Azure Cosmos DB: 1,000+ employees
42%
Postings per company, 90 days
3.7 · 3.1
Website or DNS footprint
0 · 0
1,007companies name Apache Cassandra
838companies name Azure Cosmos DB
0name both
3,727 · 2,620postings in 90 days, Apache Cassandra · Azure Cosmos DB
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentApache CassandrashareAzure Cosmos DBshareLeans
Self-employed263%273%even
2-10 employees747%567%even
11-50 employees15015%10212%Apache Cassandra
51-200 employees22322%13216%Apache Cassandra
201-500 employees11111%10513%even
501-1000 employees939%688%even
1001-5000 employees13413%14317%Azure Cosmos DB
5001-10000 employees475%536%even
10,001+ employees14915%15218%Azure Cosmos DB
By industry
SegmentApache CassandrashareAzure Cosmos DBshareLeans
Technology & software59059%38746%Apache Cassandra
Business & finance services19619%18222%Azure Cosmos DB
Manufacturing & industry555%769%Azure Cosmos DB
Media & content364%192%even
Utilities & infrastructure303%162%even
Commerce & trade273%293%even
Consumer services & leisure263%283%even
Public, community & associations111%213%even
Transport, logistics & rental111%202%even
Hospitality & travel101%––outside top 12
Automotive61%111%even
Health care61%314%Azure Cosmos DB
Property & construction––91%outside top 12
By country
SegmentApache CassandrashareAzure Cosmos DBshareLeans
United States64464%46756%Apache Cassandra
United Kingdom545%799%Azure Cosmos DB
India535%263%Apache Cassandra
France263%233%even
Germany232%354%even
Canada141%263%even
Singapore141%91%even
Spain121%111%even
Italy121%––outside top 12
Australia111%142%even
Brazil111%––outside top 12
Portugal101%––outside top 12
Sweden––132%outside top 12
Poland––101%outside top 12
Netherlands––91%outside top 12
Postings by team (share of each tool's postings)
SegmentApache CassandrashareAzure Cosmos DBshareLeans
Software engineering3,20158%1,55145%Apache Cassandra
Data & AI1,00018%70120%Azure Cosmos DB
IT operations & business systems55710%3229%even
Engineering (non-software)571%1665%Azure Cosmos DB
Finance & accounting361%60%even
Sales351%501%even
Product, program & project management250%521%even
Legal, compliance & risk170%30%even
Customer service & success130%150%even
public safety and protective services120%––outside top 12
Unclassified110%80%even
Quality, safety & environment80%231%even
General management & consulting50%80%even
logistics warehouse and transport40%60%even
Human resources30%20%even
Marketing & communications30%100%even
construction and civil20%20%even
Education & training20%10%even
Administration & office10%40%even
Design & UX––90%outside top 12
Business development & strategy––70%outside top 12
research and science––60%outside top 12
facilities cleaning and security––20%outside top 12
procurement and purchasing––20%outside top 12
arts media and entertainment––10%outside top 12
healthcare clinical––10%outside top 12
real estate and property––10%outside top 12
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Azure Cosmos DB is named by 838 companies in job postings and Apache Cassandra by 1,007; 0 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/apache-cassandra-vs-azure-cosmos-db)
How we know

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.
FAQ

Apache Cassandra vs Azure Cosmos DB: questions

Which is more used, Apache Cassandra or Azure Cosmos DB?

By companies naming it in their own job postings, Apache Cassandra (1,007) over Azure Cosmos DB (838). By website-and-DNS footprint, Azure Cosmos DB (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses Apache Cassandra?

44% of Apache Cassandra companies have 2 to 200 employees, against 35% for Azure Cosmos DB. 33% of Apache Cassandra companies have over 1,000 employees, against 42% for Azure Cosmos DB.

Do companies run both?

0 companies name both in their postings, usually Apache Cassandra in marketing and Azure Cosmos DB 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.

Companies and people

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