Twin State Engineering, 640 N 9th Ave, Eldridge, IA 52748, US

Established in 1958, Twin-State Inc. manufactures and markets a complete line of liquid fertilizers to the farming community. Based in Davenport, Iowa, the company operates three major manufacturing facilities (Durant, Iowa; Hampton, Iowa; and Janesville, Wis.) and has over 44 years of fluid fertilizer experience. Its line of products includes suspensions, all NPK and 10-34-0 starters and minor elements, such as sulfur, zinc, boron and more. Its products are distributed through a network of 16 retail outlets and independent and cooperative dealers in Iowa, Illinois, Wisconsin and Minnesota that offer their farm customers a complete program of fertilizer services, crop protection chemicals, crop production information and record keeping. Additional services include soil testing and follow-up recommendations based on yield goals and management ability.