Get to Know Me

Bill is the Managing Partner and Chief Executive Officer of WithumSmith+Brown, PC, the 25th largest accounting, tax and advisory firm in the country. He has been a member of the firm’s management for over 30 years. As a licensed certified public accountant in New Jersey, as well as a Chartered Global Management Accountant (CGMA), Bill specializes in merger and acquisition services and international business. During his tenure as CEO, the firm has tripled in size and expanded into non-traditional advisory services. The firm is known nationally for its unique culture and team member retention rates. Withum’s CEO Statement on Inclusion and Diversity shares the intentional commitment to inclusion and diversity reinforces the foundation of the value-driven culture.

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Awards and Accolades

Bill’s professional and philanthropic involvements at both the local and state levels are exemplary. In 2021 he received the Business Advocate Award from the NJ State Chamber of Commerce. In 2020 he received the National Network Leadership Award from Jobs For America Graduates. In 2010, Bill received the Thomas H. Kean Arts Advocacy Award, honoring him for his dedication to the arts. He has also coached his children’s little league, basketball and in-line hockey teams.

Bill is a sought-after thought leader, appearing on television and radio programs discussing topics related to leadership and business management, including appearances on Steve Adubato’s television show, “NJ Caucus”; News 12 New Jersey’s television segment, “New Jersey Business”; and Executive Leaders Radio. He is frequently quoted in accounting and business publications and has authored many articles over the years on topics ranging from fixed asset management to mergers and acquisitions to leadership within the profession. Bill was featured in the business leadership book, Catalysts of Culture: How Visionary Leaders Activate the Employee Experience, in which the first chapter spotlighted Bill and his story of Withum’s unique culture. Most recently, NJBIZ named Bill to the Accounting Power 50 list for 2020 , and as an ICON award recipient in 2021; and ROI-NJ named Bill as one of Accounting’s Top Influencers of 2020 in its annual Power List.

Bill resides in Monmouth County, NJ.

Latest Thinking

HLB Names Bill Hagaman as Chairman

Withum is proud to share that Bill Hagaman has been appointed Global Chairman of HLB International. HLB, the global advisory and accounting network, announced at their annual summit in October […]

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3 Withum Partners Named to NJBIZ 2022 Accounting Power 50 for Second Consecutive Year

Withum is proud to announce that three Partners, including Managing Partner and CEO Bill Hagaman, were named to the 2022 Edition of NJBIZ’s Accounting Power 50 List. In the Number […]

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ROI-NJ Names Bill Hagaman on 2022 Power List

Withum is proud to share that New Jersey Business Publication, ROI-NJ, named CEO and Managing Partner Bill Hagaman, as a top influencer in the state’s business world. “Not only has […]

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