Tom is a partner, senior advisor and portfolio manager at Brown Advisory. He works on the firm’s family office and private client practices by creating diversified portfolios that align with each family’s investment strategy, and providing counsel on their financial lives and family goals. Prior to joining the firm, Tom served as the founder and CEO of a major single-family office, managing the family’s investment portfolio and philanthropic efforts and overseeing significant private operating businesses. Prior to this, Mr. Geddes worked as an investment advisor and spent time in the nonprofit sector after beginning his career as a teacher.


  • Johns Hopkins University, MA
  • University of Cambridge, M. Phil
  • University of North Carolina, BA (Morehead-Cain Scholar)

Community Involvement

  • Board member, Federal Reserve Bank of Richmond
  • Board member, National Advisory Council for President Obama’s My Brother’s Keeper Alliance
  • Board member, Baltimore Council on Foreign Affairs
  • Chair, MedStar Harbor Hospital Board of Directors
  • Chair, Sutton Scholars Advisory Council (Episcopal Diocese of Maryland)
  • Chair, Partners in Excellence Board of Directors (Catholic Archdiocese of Baltimore)


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