Share of companies with a recorded size, by employees.
No size recorded: 11K+
Versions detected
10 versions across the confirmed companies. Counts are distinct companies seen running that version.
6754
268451
75174286
67235
728233
57225
454215
10204
4161
1170
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Frequently asked questions
About the Fly.io data on this page.
How many companies use Fly.io?
Firmable holds confirmed Fly.io detections for 33,010 distinct companies, 29,726 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Fly.io?
Smartbank, Kestra Medical Technologies, Inc. and PeakMade Real Estate are among the most prominent in the current set.
What industries use Fly.io?
Financial services, professional and business services and information technology and services lead the set, across 19 industries in total.
What size companies use Fly.io?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Fly.io users based?
The United States, Canada, Australia and the Philippines account for most detections, across 13 countries.
How current is this data?
29,726 companies were confirmed in the last 90 days. Last detection 14 October 2026.
