Clarke Fire Protection Products sold its first diesel fire pump driver in 1964 as a regional distributor for GM Diesel. They began manufacturing their own UL/FM driver in 1980 and now market the largest line diesel fire pump drivers in the world.

Johnson’s Emergency Vehicle Solutions was established in 2017 as a total vehicle solution subdivision in Dill’s Fire & Safety Equipment Company Inc. The company provides pumpers, tankers, aerials, platforms, stocks and other parts for fire trucks, as well as customization of fire trucks, police and emergency medical services vehicles.