A breakdown of the 737 companies running ExternalDNS.
Top industries
Information technology and services218
Real estate and home services65
Professional and business services50
Financial services47
Art, sports and recreation35
Retail trade31
Media and telecommunications30
Education and training28
No industry recorded: 129
Company size
1–10119 (28%)
11–50122 (29%)
51–250111 (26%)
251–50028 (7%)
501–1,00017 (4%)
1,001–5,00017 (4%)
5,001–10,0001 (<1%)
10,001+4 (1%)
Share of companies with a recorded size, by employees.
No size recorded: 318
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Frequently asked questions
About the ExternalDNS data on this page.
How many companies use ExternalDNS?
Firmable holds confirmed ExternalDNS detections for 737 distinct companies, 733 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use ExternalDNS?
Click Here Digital, TECHVIFY Software and Finmo are among the most prominent in the current set.
What industries use ExternalDNS?
Information technology and services, real estate and home services and professional and business services lead the set, across 19 industries in total.
What size companies use ExternalDNS?
Adoption concentrates in the 11-50 employee band, across the companies whose size is recorded.
Where are ExternalDNS users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
733 companies were confirmed in the last 90 days. Last detection 13 October 2026.
