Matthew deMontesquiou, CPA

Partner, Accounting Services


Matthew has more than 20 years’ experience in the finance and accounting industry with an emphasis on advisory services. Prior to joining BGA, Matt was a Director of Finance for a SAAS-based company in Orange County. Before that, Matt was the Director of Internal Audit for Western Dental, one of the largest dental practices in America. Matt began his career at CBIZ/MHM, where he ran multiple audit engagements.


  • Blythe Global Advisors, Partner, Accounting Advisory Services
  • The Retail Equation, Director of Finance
  • Western Dental, Director of Internal Audit
  • CBIZ, Senior Supervising Associate


  • CPA