Mon - Thurs 8AM - 5PM , Fri 8AM - 2PMCall Us605-342-5630Our Address810 Quincy Street Rapid City, SD 57701

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Welcome to KTLLP

Ketel Thorstenson, LLP (KTLLP) is celebrating 80 years of serving the Black Hills region. As a leading accounting firm, KTLLP continually looks for ways to innovate and educate for the benefit of our clients. Our clients are our focus. We take the time to get know you and your business. Our mantra is Friends for Life and we live it daily.


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Does your CPA “get you?”

Side effects of finding a CPA that “gets you” include… excessive smiling, no more headaches, fist bumps, high fives, celebration, confidence, and peace of mind.

If you’re not “suffering” with these symptoms KTLLP can help!

Trust the experts.
Choose Ketel Thorstenson!
Because we get you!
Because we offer you more.

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KTLLP CORE VALUES


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Looking for premium tax services for your business? | Have QuickBooks questions? The KTLLP OuickBooks ProAdvisors have answers.| Ask your CPA about developing an estate plan to protect the future of your property. | KTLLP can help you turn business strengths into tax saving advantages. | Buying or selling a business? Talk to the KTLLP Business Valuation Team. | Free up staff resources. Outsource your bookkeeping and payroll to KTLLP.

LOCATIONS



CONNECT

CONNECT


Rapid City Office


810 Quincy StreetRapid City, SD 57701


Ketel Thorstenson, LLP Spearfish Office

CONNECT

CONNECT


Spearfish Office


123 E. Jackson Blvd Suite 2 Spearfish, SD 57783
Phone: (605) 642-7676Fax: (605) 642-2616


Ketel Thorstenson Custer
CUSTER

CONNECT

CUSTER

CONNECT


Custer Office


609 Mt. Rushmore Road Custer, SD 57730
Phone: (605) 673-3220Fax: (605) 673-3114


Ketel Thorstenson Gilette
GILETTE

CONNECT

GILETTE

CONNECT


Gillette Office


305 S. Garner Lake Rd Suite A Gillette, WY 82718
Phone: (307) 685-4433Fax: (307) 682-6321

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