Who we are

Carstens leads Landus Cooperative’s work to advocate for farmer-members and customers, empower employees, and lean into the future of the ag industry. His passion for, and experience in, agriculture spans every step in the supply chain from agronomy retail to end-user grain customers, food manufacturers, grocery stores and consumers.

Miner brings to Landus Cooperative three decades of cooperative experience. He was previously chief financial officer/vice president of administration at Farmers Cooperative. He was also location manager at Mid-Iowa Cooperative and began his career at his family’s agronomy company, Miner Farm Supply.

Barker oversees Landus Cooperative’s technology, integrating every aspect of the business and providing real-time data internally and to customers. In his nearly three-decade career, Barker has implemented business intelligence strategies, modernized companies’ online presences and improved customer experiences. Barker has served in IT leadership roles at Ingram Barge Company, The Manitowac Company and Ford Company. He graduated from Purdue University and holds PMP Certification from the Project Management Institute.

Cullen is responsible for Landus Cooperative’s dairy, beef and swine nutrition manufacturing businesses. Under his leadership, SoyPlus, SoyChlor and PasturChlor branded dairy nutrition products, which are marketed domestically and internationally, saw significant growth. Cullen has more than 20 years of experience in the cooperative system in management, sales and manufacturing operations, including oversight for HACCP and ISO certifications. Cullen holds a bachelor’s degree in agricultural business from Northwest Missouri State University.

King leads our grain team in achieving origination, operational efficiency, and expanding merchandising. He joins us from Michlig Grain, where he worked his way up from operations to the owner at the full-service grain and agronomy business in northwest Illinois. In his nearly 40 years in the agricultural industry, he has been revered by his employees, puts a strong focus on the customer experience, and is entrepreneurial in his business approach. King holds a degree in Agri-Business from Black Hawk East College.

Risdal oversees the cooperative’s agronomy business, including sales, marketing, product procurement and precision ag. His experience in agronomy business leadership includes research and development, sales, marketing and management at Key Cooperative and Land O’ Lakes. Most recently, he was a senior product manager with WinField United. Risdal holds a bachelor’s degree in agriculture from Iowa State University.

Unruh is responsible for Landus Cooperative’s human resources, safety, and communications programs. Additionally, he oversees the cooperative’s quality management system, business development planning and supply chain optimization efforts. His experience includes more than 20 years in various segments of the agriculture industry, at companies that include Winfield United, John Deere Financial and Helena Chemical. Unruh holds a bachelor’s degree in business from Ashford University.