Allison Transmission Holdings, Inc. and its subsidiaries are engaged in the design and manufacture of vehicle propulsion solutions, including commercial-duty on-highway, off-highway and defense fully automatic transmissions, and electric hybrid and fully electric systems. It operates across Europe, Asia, South America and Africa. The Company manufactures fully automatic transmissions for medium and heavy-duty commercial vehicles and medium and heavy-tactical United States defense vehicles and is a supplier of commercial vehicle electric hybrid and fully electric propulsion systems. The Company has developed over 100 different models that are used in more than 2,500 different vehicle configurations and are compatible with more than 500 combinations of engine brands, models and ratings, including diesel, gasoline, natural gas and other alternative fuels. It has approximately 1,400 independent distributor and dealer locations worldwide.