We use cookies to improve your experience and optimize user-friendliness. Read our cookie policy for more information on the cookies we use and how to delete or block them. To continue browsing our site, please click accept.
Home Our People James J. Decker

James J. Decker


CPA, Practice Leader, Not-for-Profit Services

I'm here to help.


Jim is a partner based in our firm’s East Brunswick, NJ, office and is a licensed certified public accountant in the state of New Jersey. He has more than 20 years of professional accounting experience assisting closely-held businesses in a variety of industries in addition to a high concentration of not-for-profit organizations. Jim also co-leads the Firm’s Not-For-Profit practice.

A graduate of the University of Scranton with a BS degree in accounting, Jim joined Withum in 1985. He is a member of the American Institute of Certified Public Accountants (AICPA) and the New Jersey Society of Certified Public Accountants (NJSCPA).

Jim serves as treasurer for the Katelyn Schwenzer Foundation, a local nonprofit organization he developed for children in need of liver transplants. He is also a board member of the New Brunswick Ronald McDonald House. Jim lives in Somerset County, NJ.

Withum isn’t just a job— we’re a family, and we carry that spirit together in everything we do. We live the Withum Way. We are catalysts for growth and success.

Contact Me


How Can I Help You?


View More Insights

Interested in Learning More?

Interested In Withum?

Get news updates and event information from Withum