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

Rapid City, SD

Gillette, WY Location

Gillette, WY

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 -

Casey Peterson & Associates and the Nonprofit Networker Group

April 5, 2013

At Casey Peterson & Associates, we understand the delicate nature of navigating the financial sphere of nonprofit work. Therefore, our firm is proud to be a partner of the Nonprofit Networker group. The purpose of this group is to establish a mechanism for professional growth and networking for managers, board members, staff and volunteers of nonprofit organizations.

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Last Modified: 04-5-2013-15:29:21


Tips on Estate Planning from a CPA

March 5, 2013

Embarking on the task of estate planning without the experienced help of a trusted Certified Public Accountant (CPA) can be frustrating.  Keep financial burden at bay by reducing your inheritance tax. It's all about smart estate planning….

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Last Modified: 03-5-2013-10:58:10


Local Accounting Firm Provides Smart Tips for Small Businesses

February 11, 2013

Oftentimes, the success of a small business all comes down to progressive thinking and organized planning. Sensible business owners can accomplish this goal with the help of financial advisors and small business consulting professionals. Casey Peterson and Associates is a team of CPAs and financial advisors that provide such support to small business owners in the Black Hills and northeastern Wyoming. Small business consulting is one realm in which CP&A offers services such as tax planning and projections, strategic development, succession planning for owners, estate planning, and a variety of other niche services.

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Last Modified: 02-27-2013-10:58:49