Jackie Gelzheiser

Jackie Gelzheiser is an accomplished marketing professional with extensive experience in consumer promotions, brand marketing, and strategic planning. Currently serving at Mars in Consumer Promotions & Shopper Marketing since April 2023, Jackie previously held leadership roles including Head of Brand Marketing at Fifth Season, a venture-backed startup that ceased operations in October 2022. Jackie was instrumental in scaling brand distribution nationally after joining Fifth Season in February 2022. Prior to this, Jackie spent over five years at UPMC Enterprises as Director of Consumer Strategy and Marketing, focusing on healthcare technology. Other notable experience includes senior marketing roles at Giant Eagle, General Mills, and various marketing agencies, demonstrating a strong ability to drive strategy and execution across multiple industries. Jackie holds an MBA from the University of Minnesota and a BBA in Marketing from the University of Notre Dame.