Stephen Tierney CPA, MST

Adjunct Assistant Professor of Business and Management

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  • Masters of Science – Taxation, Golden Gate University
  • Bachelors of Science – Business Administration,Accounting, Biola University


  • Managerial Accounting


  • Partner, Nienow & Tierney, LLP – 2007 - Present

Key Honors/Positions Held

  • President, Up and Running Again (501(c)(3) –
  • 2014 CalCPA Public Service Award Recipient
  • CalCPA Orange County/Long Beach Past President
  • Certified Public Accountant, September 1998


I am a huge Seattle sports fan and follow everything Seahawks, Mariners and Kraken.  I enjoy running half marathons, golf and watching movies with my family.