Mark has worked in public accounting since 2006. He serves clients in the Tribal and gaming industry, along with other Tribal enterprises. Mark also has deep knowledge and experience with Governmental Accounting Standards Board (GASB) reporting benefit plans.

Mark’s knowledgeable and efficient in performing and supervising risk-based audits. Each year, Mark and his team provide audit, NIGC MICS, and other consulting services to gaming operations and other Tribal enterprises across the country.

Mark has conducted several speaking engagements and technical training sessions. He has been a speaker at the National Indian Gaming Association’s annual gaming conference and at other state and regional gaming conferences.

Professional Affiliations

  • Member, American Institute of Certified Public Accountants
  • Member, Washington Society of Certified Public Accountants


  • BA, management information systems, Eastern Washington University
  • MBA, Western Washington University

Insights from Mark Siadal