Share of companies with a recorded size, by employees.
No size recorded: 24
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Frequently asked questions
About the OpenVMS data on this page.
How many companies use OpenVMS?
Firmable holds confirmed OpenVMS detections for 359 distinct companies, 89 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use OpenVMS?
Veritas Capital, Diné Development Corporation and Five Stones Research Corporation are among the most prominent in the current set.
What industries use OpenVMS?
Information technology and services, industrial and manufacturing and professional and business services lead the set, across 18 industries in total.
What size companies use OpenVMS?
Adoption concentrates in the 10,001+ employee band, across the companies whose size is recorded.
Where are OpenVMS users based?
The United States, Canada, Australia and Indonesia account for most detections, across 13 countries.
How current is this data?
89 companies were confirmed in the last 90 days. Last detection 14 October 2026.
