Generac

One of the largest dealer and service networks in the U.S. residential standby market, along with a widely used remote monitoring app.

Kohler

A substantial U.S. dealer network and a remote monitoring app for tracking generator status.

Cummins

Deep experience in commercial and industrial power generation alongside its residential standby line. Cummins' industrial heritage is most relevant for buyers considering larger, liquid-cooled equipment where the manufacturer's commercial track record matters more. At the standard residential 13–22 kW air-cooled tier, Cummins competes directly with Generac and Kohler/Rehlko on features, service network, and monitoring capability.

Briggs & Stratton

A long history in small engines and portable power equipment, in addition to its standby generator line.

Champion

Often positioned as a lower-cost alternative to the larger, more established residential standby brands, alongside a long track record specifically in portable and dual/tri-fuel portable generators.

Honeywell

Being functionally the same hardware as a Generac standby generator under a different badge and color scheme — worth knowing if you're comparing the two brands and weighing warranty terms or dealer availability rather than expecting a meaningfully different product underneath.