Colleen Thomas
Colleen Thomas

Colleen Thomas Senior Client Advisor

Joined Northern Trust



  • Bachelor of Science in Public Management, University of Arizona
  • Juris Doctor, Sandra Day O’Connor College of Law, Arizona State University


  • Member of the Arizona State Bar


Colleen is a Vice President and Senior Client Advisor responsible for administering a diverse portfolio of complex trust and investment accounts for clients and assisting them in accomplishing their wealth transfer goals. In this role, she collaborates with professional advisors on sophisticated estate plans and manages sensitive family matters.


Prior to joining Northern Trust in 2023, Colleen was a Partner at the law firm of Frazer Ryan Goldberg & Arnold, LLP, where she practiced in the areas of trust and estate administration and litigation and was a Best Lawyers in America® "Ones to Watch" (Trust and Estates, Trust and Estate Litigation) honoree. Colleen brings to Northern Trust over 10 years of legal experience, including commercial litigation and criminal prosecution.

Community Involvement

Colleen is a Member of the Arizona State Bar, Probate and Trust Section. She also serves on the Board of Directors of the Maricopa County Bar Association's Estate Planning, Probate and Trust Section.