Walt Sigerich

Overview

Walt Sigerich is a Principal in Ryan’s Scottsdale office, where he provides multidisciplinary tax services to a diverse client base. He works closely with organizations to address complex tax matters through coordinated, cross-practice solutions aligned with each client’s operational and strategic objectives.

With experience spanning public accounting, management consulting, and technology-focused leadership roles, Walt brings a broad, business-oriented perspective to client service. His background includes senior client services leadership at Ryan and executive roles in consulting and application-focused organizations. Walt is known for building trusted client relationships and delivering practical guidance that helps clients navigate evolving tax and business challenges with confidence.

Education and Qualifications

Master of Business Administration, Finance, University of Chicago

Bachelor of Science, Accounting, University of Illinois

Certified Public Accountant (CPA), Licensed in Illinois (Ryan is not a CPA firm.)

Experience and Achievements

Principal, Client Services, Ryan, Scottsdale office

• Delivers multidisciplinary tax services to a broad client base

Director, Client Services, Ryan, Chicago office

Director, Tax, national accounting firm

Vice President, management consulting firm

Principal, Global Applications, database firm

Member, American Institute of Certified Public Accountants

Member, Institute for Professionals in Taxation