Founded in 1982, Diedrichs & Associates offers engineering, design and building services. It provides concept development, engineering and design, computer-aided design modeling and drafting and prototypes building and testing services. Diedrichs & Associates offers agricultural, mechanical and electrical engineering services for off-road vehicles and commercial and consumer devices, such as stinger thermal weeder and polymer injection machine. It develops automation equipment for handling, assembly, testing and packaging services. Diedrichs & Associates provides equipment and instruments for analysis, performance measurement and accelerated life testing of products and tools. It builds special purpose machinery and runs durability tests. Diedrichs & Associates is located in Cedar Falls, Iowa.