Generac-  http://www.generac.com/    Founded in 1959, Generac was the first to engineer affordable home standby  generators, along with the first engine developed specifically for the rigors of generator use, and is now the #1 manufacturer of home standby generators. Generac manufactures the widest range of power products in the marketplace including portable, residential, commercial and industrial generators. We are also the leading designer and manufacturer of manual and fully automatic transfer switches and accessories for backup power applications up to 50 kW.

Briggs and Stratton- http://www.briggsandstratton.com/us/en  Briggs & Stratton was founded in Milwaukee, Wisconsin in 1908 and has been blazing trails in small engine design and manufacturing ever since. Stephen Briggs was an electrical engineer. Harold Stratton was a grain merchant. The two entrepreneurs came together to build a new gas-powered vehicle at the dawn of the automotive age Today, we’re the world’s largest producer of Gas engines, for Lawn Mowers, Snow blowers , and Portable Generators, Pressure Washers and other outdoor power equipment, Throughout Briggs & Stratton's long history, we’ve rolled with the times. Pioneered new small engine technologies. And we come to work every day knowing that the bar for performance will always be high.

Kohler- http://www.powerequipmentplus.com/ Since 1985 we have designed, built, sold and serviced outdoor power equipment, earning the trust of over 1,000,000 customers. That kind of trust doesn't come easily and, as proud as we are of our products, we're even more proud of our commitment to our customers.