Allison Transmission is the premier global provider of commercial-duty automatic transmissions and hybrid propulsion systems. The company's transmissions are used in a wide variety of applications such as city buses, tractors, fire and emergency services, mining, energy, construction, agriculture, and defence; all over the world.

AM General designs, engineers, manufactures, supplies, and supports specialized vehicles for commercial and military customers. The AM General business units also include two wholly owned subsidiaries, General Engine Products, a diesel engine manufacturer, and General Transmission Products, an automatic transmission manufacturer.

Cummins Inc., is a corporation of complementary business units that design, engineer, manufacture, distribute and service engines and related technologies. They provide a complete range of diesel engines from 260 to 600 horsepower (194-447 kW) for everything from ambulances to pumpers. They also offer a full range of hydraulic generators, power take-off (PTO) generators and standby generators.

Renewed Performance Company, Inc. provides new and refurbished emergency equipment for firefighting services. The firm has worked with 800 fire departments to revitalize their trucks into a serviceable vehicle to meet modern firefighting needs.

Warner Bodies manufactures utility truck bodies, rescue vehicles and custom trucks. Warner offers custom design solutions to storage compartments and roll-out shelving, as well as the latest innovations for added safety, security, and ease of operation.