Details for Tax Reform questions? Ketel Thorstenson has the answers! Trust the experts. Visit or call 605-342-5630.

Ketel Thorstenson, LLP has proudly served the Rapid City community and the Black Hills region since 1936 by providing exceptional customer service. As a member of the American Institute of Certified Professional Accountants, the dedicated family at Ketel Thorstenson currently employs more than 120 professionals and staff, including 17 partners.


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Ketel Thorstenson, LLP

810 Quincy Street, Rapid City, SD 57701


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