A breakdown of the 510K+ companies running Fastly.
Top industries
Art, sports and recreation58K+
Professional and business services57K+
Health and wellness41K+
Hospitality and travel40K+
Construction and building36K+
Education and training32K+
Information technology and services29K+
Financial services22K+
No industry recorded: 54K+
Company size
1–10118,139 (47%)
11–5063,713 (25%)
51–25046,668 (19%)
251–50013,160 (5%)
501–1,0003,095 (1%)
1,001–5,0004,620 (2%)
5,001–10,000757 (<1%)
10,001+997 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 259K+
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Frequently asked questions
About the Fastly data on this page.
How many companies use Fastly?
Firmable holds confirmed Fastly detections for 510,437 distinct companies, 334,678 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Fastly?
Tarsus Pharmaceuticals, Inc., First Eagle Investment Management and SK Life Science, Inc. are among the most prominent in the current set.
What industries use Fastly?
Art, sports and recreation, professional and business services and health and wellness lead the set, across 19 industries in total.
What size companies use Fastly?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Fastly users based?
The United States, Canada, Australia and Japan account for most detections, across 13 countries.
How current is this data?
334,678 companies were confirmed in the last 90 days. Last detection 14 October 2026.
