GreenMark Equipment
Jeff Oldham is an accomplished executive with extensive experience in the equipment and truck sales industries. Currently serving as the Chief Executive Officer at Groff Tractor & Equipment since March 2025, Oldham previously held the same position at GreenMark Equipment from December 2021 to March 2025. Prior roles include Regional Vice President at Mack Trucks and President at Arrow Truck Sales, Inc. Additionally, Oldham served as Chief Operations Officer at Ag-Power, Inc., and Director of Sales at John Deere Financial. Oldham began a career at John Deere, culminating as Division Manager. Educationally, Oldham holds a Master of Business Administration (MBA, EMBA) from the University of Missouri-Kansas City.
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GreenMark Equipment
GreenMark Equipment is a John Deere dealership with 17 locations throughout Southwest Michigan and Northern Indiana. GreenMark Equipment has built their reputation by providing quality products, having competent and knowledgeable employees, and offering competitive prices. Besides John Deere, we also carry Stihl, Honda and Valley equipment. Whether you need parts or service or you want to buy new or used equipment, GreenMark is here to help you find exactly what you need and to answer all your questions. Stop in to one of our locations and see what makes us different.