A breakdown of the 34 companies running Thomson Reuters UltraTax CS.
Top industries
Financial services21
Professional and business services4
Industrial and manufacturing2
Information technology and services2
Education and training1
No industry recorded: 4
Company size
1–106 (19%)
11–509 (28%)
51–25013 (41%)
251–5001 (3%)
501–1,0001 (3%)
1,001–5,0001 (3%)
10,001+1 (3%)
Share of companies with a recorded size, by employees.
No size recorded: 2
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Frequently asked questions
About the Thomson Reuters UltraTax CS data on this page.
How many companies use Thomson Reuters UltraTax CS?
Firmable holds confirmed Thomson Reuters UltraTax CS detections for 34 distinct companies, 8 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Thomson Reuters UltraTax CS?
Albinder, Altman & Block, LLP, Crete Professionals Alliance and Korhorn Financial Group, Inc. are among the most prominent in the current set.
What industries use Thomson Reuters UltraTax CS?
Financial services, professional and business services and industrial and manufacturing lead the set, across 8 industries in total.
What size companies use Thomson Reuters UltraTax CS?
Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.
Where are Thomson Reuters UltraTax CS users based?
The United States, the Philippines, Australia and Canada account for most detections, across 10 countries.
How current is this data?
8 companies were confirmed in the last 90 days. Last detection 19 September 2026.
