Mark A. Diekmann, C.P.A.



  • Mark Diekmann is a certified public accountant with more than 15 years of experience in various corporate and public accounting positions. Throughout the 7 years of experience with the firm, he has helped many clients extract and produce relevant reports and documents from accounting systems and financial analyses. His experience with the firm has been primarily focused on creating damage models, estimating damages, valuing intellectual property assets, and searching large-scale and small-scale accounting systems.
  • Prior to joining the firm, Mr. Diekmann was a treasury manager with Holiday Companies for more than four years.  He managed treasury, insurance, debt-reporting, cash-management, forecasting, and various other activities.  In addition, Mr. Diekmann has held positions as a controller for a regional convenience store company and as an auditor with a public accounting firm.

Represented independent three-member Special Committee of the Fiesta Bowl Board of Directors that was headed by a former Chief Justice of the Arizona Supreme Court. The Special Committee was formed to investigate allegations that the Fiesta Bowl had reimbursed employees for campaign contributions, that a prior investigation had covered-up criminal conduct, and that the Fiesta Bowl had made numerous other improper expenditures. Our five-month investigation included 87 interviews of 52 individuals and the review of 55 gigabytes of electronic data and more than 10,000 additional hard copy documents. Our investigation culminated in a 276-page Final Report with 1,562 footnotes and thousands of additional pages of supporting schedules and spreadsheets.  The Final Report was covered by dozens of media outlets and has received widespread praise, including:

  • The Arizona Republic's Editorial Board stated: "The Fiesta Bowl executive committee should never lose sight of what appears to have saved their event's bacon, at least for now: the unflaggingly candid 276-page report released by the Fiesta Bowl itself, which exposed all those ugly warts."
  • A leading legal commentator stated:  "Any lawyer or other person asked to lead a special investigation centered on wrongdoing of the type that now surrounds the Fiesta Bowl should read RKMC's report first."
  • Arizona Attorney General Tom Horne called the report "comprehensive."
  • The Bowl Championship Series (BCS) Task Force -- a Task Force that was created to review the Fiesta Bowl's conduct and our Report -- called our investigation "exceedingly thorough" and noted that had the Special Committee not produced such a "thorough and open report" the Task Force "almost certainly would have recommended termination of the BCS Groups' involvement with the Fiesta Bowl."

  • University of St. Thomas, M.A.
  • Mankato State University, B.A.
Professional Associations
  • American Institute of Certified Public Accountants (AICPA)
  • Minnesota Society of Certified Public Accountants (MNCPA)
Certified Public Accountant