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People angle Douglas A. Kolker

Douglas A. Kolker

Partner and Director of Research and Experimentation Tax Credit Services


Doug Kolker, CPA, Partner and Director of Research and Experimentation Tax Credit Services, joined Mueller Prost in 2006. With his enthusiastic attitude and experience of supervising others, Doug is responsible for leading the Research and Experimentation tax projects allowing him to use his experience to help clients maximize the R&E tax credit. He assists manufacturing, technology and software companies nationwide to successfully reduce their tax liabilities by uncovering R&D credits., Doug is also responsible for the overall planning, organization, supervision, and completion of client engagements. He has a broad background in tax planning working with closely held businesses, corporations, partnerships and limited liability companies.

Doug began his career in the early 90’s as an auditor for private and public companies. With his passion and desire to run his own business, Doug became president of a chain of retail stores in the St. Louis area where he oversaw the size of the company double.

Organizations & Awards

Professional Organizations
  • American Institute of Certified Public Accountants (AICPA)
  • Missouri Society of Certified Public Accountants (MSCPA)
Civic Organizations
  • Congregation Shaare Emeth – Board of Trustees