Generator Brands
The major US generator brands at a glance — Generac, Kohler, Cummins, Champion and Westinghouse — with their standby and portable line-ups, specs and where each one fits.
Generac
The US market leader in home standby — the widest whole-house line-up and dealer network.
Kohler
The main premium alternative to Generac for whole-house standby, known for build quality.
Cummins
The third serious home-standby name, backed by Cummins’ industrial engine heritage.
Champion
A value leader in portable and dual-fuel generators, with a growing standby range.
Westinghouse
A strong portable and dual-fuel choice for home backup, RV and recreation.
gennyguide’s brand pages give you the quick, unbiased read on each major US generator maker. Generac and Kohler lead the whole-house standby market; Cummins is the other serious home-standby name; Champion and Westinghouse dominate the portable and dual-fuel end. Each page lays out the brand’s typical kW range, fuel options, transfer-switch and warranty story, and the models worth a look, so you can decide whether that brand fits your home before you compare specific units. Specs and pricing move over time — verify the current model details before you buy.