A breakdown of the 22 companies running UtilityAPI.
Top industries
Resources, energy and utilities8
Construction and building3
Financial services2
Information technology and services2
Media and telecommunications2
Government and public services1
Hospitality and travel1
Industrial and manufacturing1
No industry recorded: 1
Company size
1–101 (5%)
11–505 (25%)
51–2507 (35%)
501–1,0001 (5%)
1,001–5,0002 (10%)
5,001–10,0003 (15%)
10,001+1 (5%)
Share of companies with a recorded size, by employees.
No size recorded: 2
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Frequently asked questions
About the UtilityAPI data on this page.
How many companies use UtilityAPI?
Firmable holds confirmed UtilityAPI detections for 22 distinct companies, 18 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use UtilityAPI?
Southwestern Electric Power Company, PUC Services Inc. and Cms Energy Corporation are among the most prominent in the current set.
What industries use UtilityAPI?
Resources, energy and utilities, construction and building and financial services lead the set, across 9 industries in total.
What size companies use UtilityAPI?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are UtilityAPI users based?
The United States, Canada, Australia and Hong Kong account for most detections, across 11 countries.
How current is this data?
18 companies were confirmed in the last 90 days. Last detection 13 October 2026.
