About KT Full

About KT

Our Mission and History

KT’s Mission

To inspire excellence in our people, clients, and communities by building meaningful relationships through progressive thinking, collaboration, and passion.

Ketel Thorstenson, LLP, is a full-service accounting firm rich in history, serving clients in the Black Hills region since 1936. Currently, KT has 21 partners and over 50 CPAs, with offices in Rapid City and Spearfish, SD, and Gillette, WY. The firm offers a variety of accounting services, specializing in the agricultural, construction, hospitality, non-profit, and government industries.

KT History