Heath Kooiman portrait

Heath Kooiman


Heath’s journey into the accounting field began with an internship at a reputable CPA firm in 1994 while attending California State University Stanislaus which has led to a very successful and flourishing career. He attributes his family owning a business to his success because he got to see all the aspects of the family business and planning – the good and the bad.

Heath enjoys getting to know a client’s entire business to help understand strategies for future planning. He specializes in creative solutions for his clients and is a strong part of the team when it comes to client collaboration.

Heath is an accomplished accounting and business advising professional known for his expertise in the industries of agriculture, construction, hospitality, and other service-based businesses. He is also heavily involved in the community serving on several for-profit and nonprofit boards. Being engaged in the community is very important to Heath in his role as a Brady Martz shareholder. He enjoys learning more about every person he encounters because everyone has a story to tell.

Heath grew up in Southwest Minnesota and resides in Sioux Falls, South Dakota, with his wife, April, daughter, Macy, and dog, Chief. The Kooiman family are avid Minnesota sports fans, love live music, theater, and enjoy all that Sioux Falls has to offer. April and Heath love to travel, watch Macy participate in a variety of activities, and spend time at the lake as a family.

Designations & Certifications

  • Certified Public Accountant (CPA) – South Dakota
  • Leadership South Dakota graduate


  • American Institute of Certified Public Accountants (AICPA)
  • South Dakota CPA Society (SDCPAS)


  • California State University Stanislaus
    • Bachelor’s degree in Business Administration with a concentration in Accountancy