Share of companies with a recorded size, by employees.
No size recorded: 162K+
Versions detected
10 versions across the confirmed companies. Counts are distinct companies seen running that version.
250-sirius.klicktipp.com190
220153
221101
250-dc110.etius.jp77
250-dc105.etius.jp71
250-dc60.etius.jp71
250-dc73.etius.jp71
250-dc77.etius.jp70
250-dc78.etius.jp69
250-dc75.etius.jp67
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Frequently asked questions
About the SMTP data on this page.
How many companies use SMTP?
Firmable holds confirmed SMTP detections for 318,820 distinct companies, 318,820 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use SMTP?
Steward Partners, Kearny Bank and Omni Cable, LLC are among the most prominent in the current set.
What industries use SMTP?
Information technology and services, professional and business services and industrial and manufacturing lead the set, across 19 industries in total.
What size companies use SMTP?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are SMTP users based?
The United States, Canada, Japan and Australia account for most detections, across 13 countries.
How current is this data?
318,820 companies were confirmed in the last 90 days. Last detection 14 October 2026.
