A breakdown of the 564 companies running TestLink.
Top industries
Information technology and services299
Professional and business services57
Industrial and manufacturing50
Financial services38
Media and telecommunications20
Construction and building14
Art, sports and recreation11
Transport11
No industry recorded: 20
Company size
1–1027 (5%)
11–5052 (10%)
51–250113 (21%)
251–50072 (14%)
501–1,00041 (8%)
1,001–5,000103 (19%)
5,001–10,00027 (5%)
10,001+97 (18%)
Share of companies with a recorded size, by employees.
No size recorded: 32
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Frequently asked questions
About the TestLink data on this page.
How many companies use TestLink?
Firmable holds confirmed TestLink detections for 564 distinct companies, 74 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use TestLink?
Publicis Groupe ANZ, Optasia and Research Innovations Incorporated are among the most prominent in the current set.
What industries use TestLink?
Information technology and services, professional and business services and industrial and manufacturing lead the set, across 17 industries in total.
What size companies use TestLink?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are TestLink users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
74 companies were confirmed in the last 90 days. Last detection 6 September 2026.
