A breakdown of the 2.1K+ companies running ChamberMaster.
Top industries
Professional and business services730
Not for profit664
Art, sports and recreation186
Hospitality and travel158
Construction and building83
Government and public services58
Education and training49
Health and wellness38
No industry recorded: 104
Company size
1–10462 (25%)
11–50703 (38%)
51–250464 (25%)
251–500150 (8%)
501–1,00037 (2%)
1,001–5,00044 (2%)
10,001+2 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 311
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Frequently asked questions
About the ChamberMaster data on this page.
How many companies use ChamberMaster?
Firmable holds confirmed ChamberMaster detections for 2,173 distinct companies, 1,985 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use ChamberMaster?
Huntington University, City of Culver City and City Of Cleburne are among the most prominent in the current set.
What industries use ChamberMaster?
Professional and business services, not for profit and art, sports and recreation lead the set, across 18 industries in total.
What size companies use ChamberMaster?
Adoption concentrates in the 11-50 employee band, across the companies whose size is recorded.
Where are ChamberMaster users based?
The United States, Canada, Australia and Indonesia account for most detections, across 13 countries.
How current is this data?
1,985 companies were confirmed in the last 90 days. Last detection 13 October 2026.
