A breakdown of the 428 companies running Mailrelay.
Top industries
Professional and business services69
Information technology and services47
Media and telecommunications37
Construction and building36
Health and wellness34
Hospitality and travel25
Industrial and manufacturing24
Art, sports and recreation23
No industry recorded: 27
Company size
1–10115 (72%)
11–5023 (14%)
51–25012 (8%)
251–5002 (1%)
501–1,0001 (1%)
1,001–5,0005 (3%)
5,001–10,0001 (1%)
10,001+1 (1%)
Share of companies with a recorded size, by employees.
No size recorded: 268
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Frequently asked questions
About the Mailrelay data on this page.
How many companies use Mailrelay?
Firmable holds confirmed Mailrelay detections for 428 distinct companies, 377 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Mailrelay?
Network For Learning (N4L), American Society for Engineering Education and VMPowered Corporation are among the most prominent in the current set.
What industries use Mailrelay?
Professional and business services, information technology and services and media and telecommunications lead the set, across 19 industries in total.
What size companies use Mailrelay?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Mailrelay users based?
The Philippines, the United States, Australia and Japan account for most detections, across 13 countries.
How current is this data?
377 companies were confirmed in the last 90 days. Last detection 7 September 2026.
