Denham Patterson is a Principal in our Outsourced Business Services at Fuller Landau. He has over 27 years of experience in public accounting, and has helped countless clients with their assurance needs, provides tax advice and planning for corporations, individuals, and trusts, and advice on best practices for corporate governance.

Clients often describe Denham as enthusiastic and dedicated when it comes to providing the best service. He is highly responsive, often going out of his way to respond to client enquiries in a timely and reliable manner. Denham’s clients also appreciate his ability to offer strategic, practical, and knowledgeable advice that they can apply to help their businesses grow and thrive. Denham’s clients are based in a wide range of industries, including professional services, manufacturing and distribution, communications, real estate and construction, and not-for-profit organizations.

Denham is an active mentor to several team members, and proactively ensures their continued professional growth. Outside of the office, Denham enjoys playing golf and softball, and is an avid collector of sports and entertainment collectables. He also spends his free time reading, playing sports, and travelling for adventure and discovery.

Academic Achievements, Memberships, and Professional Designations

  • CPA, CA Designation 1995
  • Bachelor of Business Management, Ryerson Polytechnical Institute 1992
  • Member, CPA Canada
  • Member, CPA Ontario

Community Initiatives/Organizations

  • Chair, CPA Ontario Small and Medium Practice Advisory Committee
  • Member and Treasurer of 3 Condominium Corporation Boards of Directors


Denham Patterson

CPA, CAPrincipal, Outsourced Business Services 416-645-6523

Practice Areas

  • Audit and Accounting
  • Outsourced Business Services


  • Professional Services
  • Manufacturing and Distribution
  • Real Estate and Construction
  • Not-for-Profit Organizations
  • Business Services

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