A breakdown of the 4.7K+ companies running Zscaler.
Top industries
Information technology and services1.6K+
Financial services652
Professional and business services538
Industrial and manufacturing497
Construction and building196
Media and telecommunications173
Health and wellness138
Retail trade121
No industry recorded: 137
Company size
1–10264 (6%)
11–50458 (10%)
51–250842 (19%)
251–500524 (12%)
501–1,000402 (9%)
1,001–5,000903 (20%)
5,001–10,000357 (8%)
10,001+702 (16%)
Share of companies with a recorded size, by employees.
No size recorded: 280
Versions detected
1 versions across the confirmed companies. Counts are distinct companies seen running that version.
6.226
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Frequently asked questions
About the Zscaler data on this page.
How many companies use Zscaler?
Firmable holds confirmed Zscaler detections for 4,732 distinct companies, 1,204 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Zscaler?
Olipop, Inc., UpGuard and Structure Therapeutics are among the most prominent in the current set.
What industries use Zscaler?
Information technology and services, financial services and professional and business services lead the set, across 19 industries in total.
What size companies use Zscaler?
Adoption concentrates in the 1,001-5,000 employee band, across the companies whose size is recorded.
Where are Zscaler users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
1,204 companies were confirmed in the last 90 days. Last detection 14 October 2026.
