Rapid City, SD Phone: 605-348-1930       Gillette, WY Phone: 307-682-4795

Rapid City: 605-348-1930 ~ Gillette: 307-682-4795

CP&A: Making Life Simpler

Casey Peterson and Associates, LTD., South Dakota and Wyoming CPAs and financial advisors, is a full service accounting firm dedicated to satisfying the needs of individuals and businesses in the Black Hills of South Dakota and Northeastern Wyoming. In November of 2012, we celebrated our 35th year, marking a period of remarkable growth and inevitable change.

Rapid City, SD Location

We Are Industry Experts

Our expertise as a firm of South Dakota and Wyoming focused CPAs and financial advisors is designed to make the lives of our clients simpler, easier, and more successful. The services of our Gillette and Rapid City accounting firms currently meet the needs of the following industries:

  • Agriculture | Farmers, ranchers; all ranges of family operations.
  • Construction | Builders, electricians, plumbers, etc.
  • Healthcare | Large and small medical services and healthcare providers.
  • Government | From school districts to municipalities.
  • Non-Profits | All shapes and sizes of not-for-profit ventures.
  • Don't see your industry?. Click Here

At Casey Peterson and Associates, we pride ourselves on the long-lasting management and advice that continues to provide for this region's businesses and individuals. Our regionally-focused South Dakota and Wyoming CPAs serve as leaders in each individual industry of specialization.


Find out what makes us experts.
More About CP&A Our Leadership
We're Always Expanding

Our greatest strengths lie in overcoming the challenges presented by a dynamic market. As Casey Peterson and Associates has watched its clients evolve with the developing community, a similar transformation has taken place within its very own personnel and physical workspace. Time and progress has populated our workforce to nearly fifty employees and two locations. Our expansion as a company has taken our services to a second office of CPAs in Gillette, Wyoming, and spread the Casey Peterson and Associates reputation into the farthest reaches of the region.

In addition, the 2011 relocation of our Rapid City accounting firm from its original downtown office space to the first floor of the Turnac Tower is a prime indicator of our growth and accomplishments. We invite you to stop in at our new home and sample the refinement of our state-of-the-art surroundings.

Casey Peterson Opening

Time has strengthened the steadfast link between our mission as South Dakota and Wyoming CPAs and Financial Advisors and the dynamic worlds of the industries we serve.

Contact Us Today! Submit an RFP

Recent News -

Uniform Grant Guidance

November 19, 2014

Announcing the arrival of the new “Uniform Grant Guidance”!  Well, that’s not entirely true.  The Office of Management and Budget’s (OMB) revisions to the Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards has been finalized since December 26, 2013 and resulted in a complete overhaul and consolidation of some of the circulars previously governing federal grant awards.

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Last Modified: 11-19-2014-09:29:44


Seasonal Administrative Assistant

November 10, 2014

Casey Peterson & Associates, Ltd., CPAs and Financial Advisors, is seeking a Seasonal Administrative Assistant to join our team based out of our Gillette, WY office from January 19 – April 15, 2015. Must have exceptional people skills and an inviting personality. Primary responsibilities include greeting clients and handling phone calls. Must be proficient in Microsoft Office, possess excellent clerical skills and have the ability to multi-task.

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Last Modified: 11-10-2014-09:07:43


Entry-Level Staff Accountant/Bookkeeper

November 10, 2014

Casey Peterson & Associates, Ltd., CPAs and Financial Advisors, is seeking a Staff Accountant/Bookkeeper to join our team based out of our Gillette, WY office. This person will have the opportunity to get involved accounting services, tax return preparation and business consulting. The individual will be working closely with all shareholders and staff, and will have direct contact with clients in various industries.

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Last Modified: 11-10-2014-09:06:13