Share of companies with a recorded size, by employees.
No size recorded: 64
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Frequently asked questions
About the Java 21 data on this page.
How many companies use Java 21?
Firmable holds confirmed Java 21 detections for 1,053 distinct companies, 382 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Java 21?
Bluesight, Eclipse Trading and Cloud And Things are among the most prominent in the current set.
What industries use Java 21?
Information technology and services, financial services and professional and business services lead the set, across 18 industries in total.
What size companies use Java 21?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are Java 21 users based?
The United States, Australia, Canada and Singapore account for most detections, across 13 countries.
How current is this data?
382 companies were confirmed in the last 90 days. Last detection 18 September 2026.
