William H. Sims, CPA

CEO, Partner
(972) 341-9545

SST Partner and CEO Bill Sims helps organizations maximize assets and achieve financial goals with accounting, tax and business consultation services. He is nationally recognized for his work in the nonprofit sector and driven by a passion for serving organizations that serve others.

Throughout his 40+ year career, Bill has worked with hundreds of local nonprofits, religious organizations, social agencies, country clubs and more to help further their missions through sound accounting practices and strategic consulting. 

Bill graduated from Baylor University with a Bachelor of Business Administration, emphasis in accounting, and began his career in auditing. He joined SST in 1995.

Bill’s outstanding leadership and meritorious contributions in the accounting profession have been widely recognized throughout the industry. In 2024, he was named a Distinguished Fellow by the Texas Society of Certified Public Accountants (TXCPA) and was named CPA of the year by the TXCPA Dallas Chapter in 2021. Bill currently serves as Global Board Chair for Integra International, a global association of 130 independent accounting firms dedicated to serving clients across more than  70 countries, 

Professional Certifications

  • Certified Public Accountant, State of Texas, California, and New York.

Professional Associations

  • Integra International, Global Board Chair
  • American Institute of Certified Public Accountants, Council Member
  • Texas Society of Certified Public Accountants, Council Member, Audit Committee
  • Dallas Texas Society of Certified Public Accountants, Former Chair
  • Texas Society of Association Executives, Member
  • Dallas-Fort Worth Association Executives, Member
  • The Church Network, Member

Education

  • Baylor University – Bachelor of Business Administration, Accounting

Community Involvement

  • Baylor University, Accounting Advisory Council
  • Healing Hands Ministries, Treasurer, Board of Directors
  • Neighborhood Security Alliance, Treasurer
  • Brother Bill’s Helping Hand,  Former Board Chair
  • Park Cities Baptist Church, Former Finance Committee
  • Children’s Craniofacial Association, Treasurer, Former Board
  • Exchange Club of Lake Highlands, President
  • Homeowners’ Association, Treasurer, Former President

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