Ketel Thorstenson, LLP is a full-service accounting and advisory firm founded in 1936. With offices in Rapid City, SD; Spearfish, SD; and Gillette, WY, the firm employs over 50 CPAs and 21 partners, providing specialized financial expertise to individuals and businesses across the Black Hills region and beyond. The firm offers a range of services, including comprehensive financial audits, strategic tax planning, operational accounting support, and expert advisory services. They serve various industries such as agriculture, construction, hospitality, nonprofit, government, and estate planning, with additional expertise in gaming, manufacturing, real estate, financial institutions, employee benefit plans, and professional services. Ketel Thorstenson focuses on personalized service, leveraging industry-specific knowledge to help clients navigate financial complexities and achieve their long-term goals.