Meet the consultants of Denman & Company. Their experience and expertise can’t be matched, and we’re pleased to have them on the team.

Tom Ahlers, CPA – Consultant

Tom Ahlers joined Denman & Company more than 40 years ago and continues to share his expertise as a consultant. Tom specializes in professional services such as physicians, medical groups and other health care delivery systems relative to operational matters, strategic planning, tax consulting, growth strategies and compensation models. He has also worked with small and medium sized insurance agencies, auto dealerships, credit unions, finance companies and franchisors.


  • BA in Business Administration, Loras College, accounting emphasis


  • Member, Iowa Society of Certified Public Accountants
  • Member, American Institute of CPA’s
  • Member, Medical Group Management Association

Contact Tom Ahlers:

Dale Cremers, CPA, CFF – Consultant

Dale Cremers applies more than 40 years of experience as a Certified Public Accountant where he works closely with clients in traditional accounting and tax services. Today Dale specializes in assisting insurance professionals in their investigative and settlement processes and attorneys in representing their clients in trial court litigation. Dale is experienced in the insurance appraisal processes, both as an appraiser and as an umpire. He has served as an expert witness and has rendered advice and testified in a variety of areas including bankruptcy proceedings, Department of Labor litigation, client defenses, shareholder disagreements, matrimonial disputes, and in closely held business issues. He served as past chairman of the Iowa Society’s Quality Review Executive Committee, past member of the Quality Review Committee and was a past member of the Iowa Board of Accounting Task Force. Dale holds certificates to practice in Iowa and Nebraska.


  • BA in Business Administration, University of Iowa


  • Member of Iowa Society of Certified Public Accountants
  • Member of American Institute of CPA’s

Community Involvement

Current and past participation in a variety of civic and community committees and boards

Contact Dale Cremers:

Tim Rice, CPA – Consultant

A Des Moines resident for over 40 years and a CPA since 1975, Tim Rice specializes in financial reporting, income tax, and consulting services for closely held businesses and nonprofit organizations. His expertise stretches across a number of diverse areas, including construction, farming, manufacturing and service-related industries.


  • BA in Accounting, Parsons College


  • Member, Iowa Society of Certified Public Accountants
  • Member, American Institute of CPAs

Contact Tim Rice:

Mark Wackerbarth, CPA, CFF, CGMA – Consultant

Joining the firm in 1976, Mark’s principal areas of practice include Auditing and Accounting and Litigation Support Services.  In 2008, Mark earned the designation of Certified in Financial Forensics (CFF) and in 2012 became a Chartered Global Management Accountant, both designations from the American Institute of Certified Public Accountants. Mark’s areas of specialization include construction, healthcare and financial forensics.


  • BA in Industrial Administration, Iowa State University, accounting emphasis


  • Member, Iowa Society of Certified Public Accountants, Past President
  • Member, American Institute of CPAs, current AICPA Council Member

Contact Mark Wackerbarth: