Share of companies with a recorded size, by employees.
No size recorded: 75
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Frequently asked questions
About the Mailman data on this page.
How many companies use Mailman?
Firmable holds confirmed Mailman detections for 285 distinct companies, 257 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Mailman?
Turck USA, Franklin W. Olin College of Engineering and ARRL The National Association for Amateur Radio are among the most prominent in the current set.
What industries use Mailman?
Education and training, information technology and services and art, sports and recreation lead the set, across 17 industries in total.
What size companies use Mailman?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are Mailman users based?
The United States, Australia, Canada and Japan account for most detections, across 13 countries.
How current is this data?
257 companies were confirmed in the last 90 days. Last detection 14 October 2026.
