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DeSmet and Biggs, LLP is a full-service accounting firm serving clients throughout the Rapid City, South Dakota area, dedicated to providing our clients with professional, personalized services and guidance in a wide range of financial and business needs.

On this website, you will find information about DeSmet and Biggs, LLP, including our list of services. We have also provided you with online resources to assist in the tax process and financial decision-making. These tools include downloadable tax forms and publications, financial calculators, news and links to other useful sites. Whether you are an individual or business in or around Rapid City, DeSmet and Biggs, LLP has years of valuable experience assisting professionals with their accounting needs.

We welcome any questions or comments you may have. Feel free to contact us at any time:



605-348-8870 (Rapid City)
605-559-1394 (Spearfish)

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DeSmet and Biggs,LLP
Certified Public Accountants

Office Locations

2934 W. Main Street
Rapid City, South Dakota 57702

127 W. Illinois Street
Spearfish, South Dakota 57783

You can also send us a message directly through the Contact page of this website .