Tim Tiefenthaler


About Tim

Tim Tiefenthaler is a partner specializing in the banking industry and has served as the market leader for the Northwest region of RSM US LLP and served two terms on the firm’s board of directors. 


Tim  has more than 30 years of public accounting experience and provides professional services to the firm’s banking, specialty finance and fintech clients.  He has been involved in more than 10 successful initial public offerings. He often serves as the partner, engagement quality reviewer and Securities and Exchange Commission audit reviewer on several of the firm’s larger banking clients, including those with assets greater than $20 billion.  

Tim is a former member of the firm’s National Fintech Steering Committee, National Financial Institutions Steering Committee and its Financial Institutions Insights Editorial Board. Tim enjoys the enduring relationships he has established with clients and the opportunity to make a positive impact.  

Tim is involved with several RSM employee networking groups, including serving as the Bay Area executive sponsor for African American and Canadian Excellence. In his free time, he enjoys traveling and hiking.  

Professional affiliations and designations

  • Certified Public Accountant 
  • American Institute of Certified Public Accountants 


  • Bachelor of Arts, accounting, Buena Vista College