Matt Nielsen serves as the chief operations officer. Matt is responsible for operations, international retail sales and information technology systems.

Matt began working in the family business when he was 15 years old, sweeping floors and cleaning tanks; today his responsibilities include overseeing all operations at the company's headquarters and manufacturing facility in Waukegan, Illinois, as well as its manufacturing facility in Leeuwarden, The Netherlands.

Matt holds a bachelor's degree in management from Gettysburg College in Gettysburg, Pennsylvania. He is a member of the Board of Directors of the Alliance for Illinois Manufacturing; a member of the Board of Directors of the National Association of Specialty Food Trade serving on the Broker Advisory Council and as chair of the Admissions Committee; Vice President – Treasurer and member of the Board of Directors of the Nielsen-Massey Foundation; member of the Flavor and Extract Manufacturers Association (FEMA); member of the International Association of Culinary Professionals (IACP); and a member of the Loyola University Family Business Center. Nielsen-Massey was the recipient of the Center's Small Family Business of the Year Award in 2006. Also in 2006, Matt was selected by Gourmet News magazine as one of their top "20 Under 40" in the specialty food industry.