Share of companies with a recorded size, by employees.
No size recorded: 58K+
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Frequently asked questions
About the OpenX data on this page.
How many companies use OpenX?
Firmable holds confirmed OpenX detections for 84,967 distinct companies, 35,640 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use OpenX?
Kearny Bank, The Guardian and Questex are among the most prominent in the current set.
What industries use OpenX?
Media and telecommunications, art, sports and recreation and education and training lead the set, across 19 industries in total.
What size companies use OpenX?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are OpenX users based?
The United States, Canada, Australia and Japan account for most detections, across 13 countries.
How current is this data?
35,640 companies were confirmed in the last 90 days. Last detection 13 October 2026.
