Willett, Hofmann & Associates, Inc. is a multi-discipline professional organization that is licensed to provide professional land surveying, civil engineering, structural engineering and architectural design services.  Our firm was founded in 1935 and presently has over 50 full-time employees holding 23 professional licenses organized into departments of Land Surveying, Transportation Engineering, Structural Engineering, Environmental Engineering, Civil Engineering, Agricultural Engineering, Architecture and Grant Writing in offices located in Dixon, Freeport, Rockford, Sterling and Joliet, Illinois and Monroe, Wisconsin.   The diversity of experience and expertise of our staff provides an integrated central knowledge base for the design and development of a wide variety of projects.