RUSSCO Electro-Mechanical Engineering was formed in 1976 by Russ Kaufmann, in the State of California. RUSSCO manufactured and serviced industrial solid state SCR motor controls from 1 to 600 hp. Applications included water pumping systems, ski lifts, process lines, and electric bridge, gantry, and bucket cranes.

In 1982, RUSSCO diversified into the electric vehicle market and produced a range of electronic DC Motor Speed Controllers, rated at 400, 500, and 650 amps for applications up to 120 volts.

In 1993, RUSSCO manufactured electric vehicle Hydronic Heaters in thirteen models ranging from 1500 to 3000 watts for 72-336 volt applications.

In 1997, RUSSCO introduced the Electric Vehicle Safety Chargers in ratings of 1800, 2400, and 3000 watts for battery pack voltages of 84 to 144 volts. In 2004, the RUSSCO charger line was updated to provide the most power in the smallest size package at the lowest cost. RUSSCO SC Chargers continue to be a leader in the on-road electric vehicle market.