Montgomery Design International (MDI) is a full service product design and development firm located in suburban Chicago, Illinois / USA.  Our three main services revolve around concept product design and styling, Computer Aided Industrial and Graphic Design, and product modeling - both full size and scale models.
Founded in 1983, MDI has arguably, become the most prolific consulting firm in the world with regard to the industrial design and styling of agricultural and construction equipment.
MDI has worked for the IH and CaseIH companies since its inception, and for Caterpillar and AGCO for over 15 years.  Key product lines credited to MDI over that time include the complete line of CaseIH MAGNUM tractors (two of which won prestigious international design awards), the entire NewHolland line of “cats eye” tractors which set trends for the entire industry, the Challenger 900 series 4WD tractor (another design award winner) and numerous products and concepts for other large international firms such as Caterpillar, McCormick, Yanmar, Lovol Heavy Industries, TAFE Ltd. and JOY Global. Additionally MDI designed and collaborated on the engineering and design of  a Manned Mars Expedition Rover capable of carrying 4 astronauts on missions on the Martian surface lasting as long as 6 weeks.
In addition to the heavy equipment vehicle work, MDI provides services to many diverse industries including medical devices, gaming, household appliances such as the first french door refrigerator, toys, lighting and the original hand-held GPS device for the military.