Always Family Owned / Always Customer Focused for more than 100 Years Deister Machine Company, a family owned business incorporated in 1912, manufactures custom aggregate sizing equipment primarily for quarrying and mining industries world-wide since 1912. Deister’s reputation has attracted the largest aggregate producers in the business with strong ongoing relationships with Martin Marietta, Vulcan Materials, Hanson Building Materials, LaFarge, I.M.I., and others. Now with the family’s fourth generation in the executive staff, Deister Machine Company continues to plan for the future by investing in manufacturing and information technology for the purpose of remaining number one in the industry. Deister operates six facilities in the Fort Wayne area and is dedicated to supporting the local economy as well as charitable, cultural, and religious organizations. Our Mission: To continue to maintain our tradition and reputation as the leader in manufacturing quality specialized vibrating screens and vibrating feeders for the mining, quarrying and allied industries, and to continue to provide unequaled personalized customer relations and service.