A breakdown of the 177 companies running Letterman.
Top industries
Media and telecommunications101
Art, sports and recreation33
Hospitality and travel10
Information technology and services8
Professional and business services4
Retail trade4
Government and public services2
Real estate and home services2
No industry recorded: 9
Company size
1–107 (70%)
11–502 (20%)
51–2501 (10%)
Share of companies with a recorded size, by employees.
No size recorded: 167
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Frequently asked questions
About the Letterman data on this page.
How many companies use Letterman?
Firmable holds confirmed Letterman detections for 177 distinct companies, 177 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Letterman?
C A Computer Systems, Republican Liberty Caucus and Elmwood Inn are among the most prominent in the current set.
What industries use Letterman?
Media and telecommunications, art, sports and recreation and hospitality and travel lead the set, across 15 industries in total.
What size companies use Letterman?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Letterman users based?
The United States and Canada account for most detections, across 2 countries.
How current is this data?
177 companies were confirmed in the last 90 days. Last detection 13 October 2026.