A breakdown of the 2.5K+ companies running Sendmarc.
Top industries
Professional and business services327
Financial services284
Construction and building278
Information technology and services251
Industrial and manufacturing219
Health and wellness166
Education and training121
Art, sports and recreation113
No industry recorded: 219
Company size
1–10544 (26%)
11–50707 (33%)
51–250568 (27%)
251–500152 (7%)
501–1,00068 (3%)
1,001–5,00054 (3%)
5,001–10,00015 (1%)
10,001+14 (1%)
Share of companies with a recorded size, by employees.
No size recorded: 448
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Frequently asked questions
About the Sendmarc data on this page.
How many companies use Sendmarc?
Firmable holds confirmed Sendmarc detections for 2,570 distinct companies, 2,560 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Sendmarc?
Honda, Enerven and Ripple Fiber Inc. are among the most prominent in the current set.
What industries use Sendmarc?
Professional and business services, financial services and construction and building lead the set, across 19 industries in total.
What size companies use Sendmarc?
Adoption concentrates in the 11-50 employee band, across the companies whose size is recorded.
Where are Sendmarc users based?
The United States, Australia, Canada and New Zealand account for most detections, across 13 countries.
How current is this data?
2,560 companies were confirmed in the last 90 days. Last detection 13 October 2026.
