Tom Hellen

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Tom Hellen


Tom has over 35 years of state tax experience primarily working for public companies. Prior to joining GAGNON he was in charge of all state and local tax issues at Millipore Corporation, a highly successful life science manufacturer, and also worked many years in the high tech world for both Wang Laboratories, Inc. (now Getronics) and Nixdorf Computer Corp. (now a Siemens company). Tom began his tax career with the Massachusetts Department of Revenue performing sales and use tax audits. He provides compliance and consulting services in all areas of multistate taxation including income, sales and use, property and payroll taxation, and has significant experience in the area of unclaimed property. Tom specializes in audit defense and tax recoveries in the income and sales, and use tax areas.

Tom received his undergraduate degree from the University of Massachusetts in Amherst and his MST from Northeastern University. He and his wife Mary Ann live with their twin daughters in Somerville, Massachusetts. They particularly enjoy heading north in the summer to their place at the beach in Maine. Tom spent many years as a high school girls basketball coach, and he now covers the sport as the Eastern Massachusetts Top 25 Schools sportswriter for He also runs basketball showcase events that provide local players with an opportunity to play in front of recruiters from colleges around the nation.

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