petersen cpas


We are focused on your success

Petersen CPAs and Advisors provides highly personalized tax, audit, and accounting services to businesses and individuals.

We offer a depth of experience partnering with public, private, and non-profit businesses from a variety of industries.

Our services include:



Many of our accounting services clients share a common history.

They owned a business and kept the books themselves, then realized they needed help with the numbers side of things to focus on what they really loved: serving customers.



We provide businesses and organizations with a full range of audit, review and compilation services.

Whether it involves financing requirements; a shareholder agreement; regulations under the single audit act and OMB Circular A-133; or other reporting needs, our team of experts will partner with your staff to complete all steps of the process in the smoothest way possible.

tax planning

Tax Planning

Our team of specialists have the technical knowledge and expertise to provide comprehensive tax and financial services to a wide range of individual taxpayers, businesses, trusts, estates, and other related entities.

Because our connection with clients is personal, we not only respond to events, we anticipate opportunities to enhance your operations.

business consulting

Business Consulting

Petersen CPAs and Advisors reaches beyond the traditional core services of accounting, audit and tax to support clients in need of specialized advising and offers in-depth knowledge in several areas including:

  • Non-Profit
  • Litigation Support and Business Valuations
  • Fraud Services

John Zylstra

March 2022

"Petersen & Advisors have been wonderful to work with. They are responsive and are always eager to answer any questions you might have. They don't pressure you for more billable hours, which is becoming rarer for even small accounting firms."