A breakdown of the 277 companies running Comcast Business.
Top industries
Industrial and manufacturing31
Construction and building30
Professional and business services23
Financial services21
Health and wellness21
Information technology and services13
Retail trade13
Real estate and home services12
No industry recorded: 47
Company size
1–1033 (22%)
11–5057 (37%)
51–25047 (31%)
251–5006 (4%)
1,001–5,0006 (4%)
10,001+4 (3%)
Share of companies with a recorded size, by employees.
No size recorded: 124
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Frequently asked questions
About the Comcast Business data on this page.
How many companies use Comcast Business?
Firmable holds confirmed Comcast Business detections for 277 distinct companies, 269 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Comcast Business?
Xumo, HunterLab and ESM Consulting Engineers, LLC are among the most prominent in the current set.
What industries use Comcast Business?
Industrial and manufacturing, construction and building and professional and business services lead the set, across 19 industries in total.
What size companies use Comcast Business?
Adoption concentrates in the 11-50 employee band, across the companies whose size is recorded.
Where are Comcast Business users based?
The United States, Canada, Australia and the Philippines account for most detections, across 13 countries.
How current is this data?
269 companies were confirmed in the last 90 days. Last detection 13 October 2026.
