ESAPCO is an engineering and agricultural products company that was founded in 1979 in Connecticut and opened a distribution center in Iowa in 1990. While initially distributing products from other companies, by 2010 ESAPCO had shifted to designing and manufacturing their own products. However, rapid growth led to issues with inventory management and on-time delivery. ESAPCO worked with CIRAS through a Theory of Constraints project to develop improvement plans around supply chain management, inventory control, quality control, and other areas. As a result, ESAPCO reported $26 million in increased sales, $6.5 million in retained sales, and $3.9 million in cost savings.