A breakdown of the 588 companies running T-Systems.
Top industries
Industrial and manufacturing135
Information technology and services98
Professional and business services41
Education and training31
Health and wellness26
Media and telecommunications24
Wholesale24
Financial services21
No industry recorded: 81
Company size
1–1025 (8%)
11–5041 (13%)
51–25080 (25%)
251–50043 (13%)
501–1,00030 (9%)
1,001–5,00048 (15%)
5,001–10,00016 (5%)
10,001+41 (13%)
Share of companies with a recorded size, by employees.
No size recorded: 264
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Frequently asked questions
About the T-Systems data on this page.
How many companies use T-Systems?
Firmable holds confirmed T-Systems detections for 588 distinct companies, 424 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use T-Systems?
Wanzl Nordic A/S – Danmark, Lone Star Funds and KNDS are among the most prominent in the current set.
What industries use T-Systems?
Industrial and manufacturing, information technology and services and professional and business services lead the set, across 19 industries in total.
What size companies use T-Systems?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are T-Systems users based?
The United States, Australia, Canada and Singapore account for most detections, across 13 countries.
How current is this data?
424 companies were confirmed in the last 90 days. Last detection 13 October 2026.
