A breakdown of the 103 companies running Quest Software.
Top industries
Information technology and services47
Professional and business services15
Media and telecommunications13
Financial services8
Education and training3
Health and wellness3
Construction and building2
Hospitality and travel2
No industry recorded: 1
Company size
1–1012 (14%)
11–5013 (15%)
51–25017 (19%)
251–50014 (16%)
501–1,0007 (8%)
1,001–5,00012 (14%)
5,001–10,0002 (2%)
10,001+11 (12%)
Share of companies with a recorded size, by employees.
No size recorded: 15
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Frequently asked questions
About the Quest Software data on this page.
How many companies use Quest Software?
Firmable holds confirmed Quest Software detections for 103 distinct companies, 19 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Quest Software?
Abtech Technologies, 3Dolphins and Doist are among the most prominent in the current set.
What industries use Quest Software?
Information technology and services, professional and business services and media and telecommunications lead the set, across 17 industries in total.
What size companies use Quest Software?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are Quest Software users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
19 companies were confirmed in the last 90 days. Last detection 19 September 2026.
