24330 Hwy 34
Greeley, CO 80631
The Heart of the Company
Our Kersey site is the original headquarters of Centennial Ag Supply Co. and continues to be the heart of our full service plant health products operation. In addition to the company’s home office, our fertilizer plant and storage facilities and our new products testing center are all located in Kersey.
Our goal is to be the best at providing you with a quality product and superior service, designed to help you maximize your return on your time and money. To help you accomplish that, our extensive staff of seasoned agronomists, experienced applicators and other field staff are ready to assist you whether you’re in the planning season, the planting season, or the growing season.
Quality, service, expertise: That’s our promise to you.
Ron Heath, Western Regional Manager
Ron Heath oversees our Kersey and Fort Morgan locations, as well as our Mountain, Industrial, and Turf & Ornamental Divisions. Ron grew up on a cattle ranch in Idaho, managed a hay farm, and for the last ten years has been general manager of an Ag retail business in Washington. He has an Associate of Arts and Sciences degree in agriculture from Big Bend Community College in Washington and has several years of managerial experience in agribusiness. He has strong professional skills in leading sales and service teams. Combined with his wealth of knowledge in the plant health products field, this makes him an invaluable resource to our growers in helping them maximize their return.
Brian Grasmick, Sales Manager; Ag Division
Brian is a Crop Advisor with over 20 years of experience in the agriculture industry. He is a University of Wyoming graduate with a Bachelor of Science in Agronomy. Brian holds a Qualified Supervisor License (QS) through the Colorado Department of Agriculture. His passion for improving crop production and protection for all of his customers is a daily focus and he uses it to the benefit of his growers.
Steve Krosky, Sales Representative
Steve has a passion for crop production. As a native Coloradoan, he knows this region’s climate and challenges. Steve is a graduate of Colorado State University with a Bachelor of Science degree in Agronomy. With over 32 years of experience in the field of crop production, as a production agronomist, as a crop consultant, and in agronomy sales, he works with growers to help them increase their yields. In his seven years with Centennial Ag Supply Co, Steve enjoys working with growers, and creating strong customer relationships.
Jeff Winter, Sales Representative
Jeff was raised on a farm near Eaton, Colorado and has been employed in crop production for ten years. After graduating from the nursing program at Aims Community College, Jeff realized his passion was in his agricultural roots and has been involved in several aspects of the industry, including service, application, scouting and sales. Jeff is dedicated to helping his growers protect their crops and maximize profit.
Jeff Hoffner, Sales Representative
Jeff brings over 40 years of experience in farming and the agricultural industry. He grew up on a family farm in Ault and graduated from Colorado State University with a Bachelor of Arts in Industrial Science Technology and Education. After college, Jeff returned to farming and then spent several years in the crop dusting business. Along with his vast agricultural background and extensive knowledge of the industry, Jeff brings a strong commitment to helping his Centennial Ag Supply Co. customers get what they need to optimize their crop production.
John Derosier, Sales Representative; Turf & Ornamental and Mountain Divisions
John has been in the landscaping, lawn care and land use management industry for over twenty years with five of those years here at Centennial Ag Supply Co. John has a Bachelor of Science from Colorado State University in Natural Resource Management. He is a proud supporter of several organizations including Rocky Mountain Regional Turf Grass Association (RMRTA), International Society of Arborists (ISA), Rocky Mountain Agribusiness Association (RMAA), and Colorado Weed Management Association (CWMA). John specializes in Turf grass and trees as well as grass hay and alfalfa production.
Jim Schneider, Sales Representative; Turf & Ornamental and Mountain Divisions
Jim has over twenty-five years of experience in the fertilizer and chemical industry. More than half his career has been spent with Centennial Ag Supply Co. In addition to being a Certified Crop Advisor (CCA) in Colorado, Jim holds a degree in Ag Business and is a Qualified Supervisor (QS) through the Colorado Department of Agriculture with categories in Ag Insect Control, Ag Plant Disease, and Ag Weed Control. He is also a Restricted Use Pesticide Dealer for the State of Utah. Jim specializes in alfalfa, grass hay, rangeland and corn. He is committed to helping growers obtain optimum yields, profits, and outcomes.
Seth Klein, Sales Representative; Industrial Division
Seth is based in our Kersey, Colorado headquarters. Having grown up in the Agriculture industry, he is experienced in each aspect including application, chemical fertilizer mixing, management and sales. He holds a Bachelor of Science degree from Colorado State University. Seth is excited to help expand Centennial Ag Supply’s specialty product offerings and grow the Industrial Division.