Generac engines are made by Generac Power Systems, a manufacturing company with facilities in Eagle and Whitewater, Wisconsin. Generac makes portable generators and power sources, the engines of which are built on-site by Generac at its Whitewater factory.
Generac Power Systems produces backup generators for commercial and industrial uses. Its products include portable generators for use at work sites, in remote locations and in RVs and other vehicles, as well as backup systems for homes and workplaces that are designed to activate automatically in the event of a power outage. Generators made by the company come in gas, diesel or bi-fuel options.