Gateway Energy Inc

Magnum Energy is one of the leading manufacturers of inverters and chargers in the United States and Canada. It offers a range of products that includes remote controls, fuse block assemblies and battery monitoring kits. The company serves the mobile, recreational vehicle, marine and truck markets. It also provides online information related to the installation, design and maintenance of products. Magnum Energy additionally offers online product pricing information. It sells products through various distributors, including the Inverter Service Center, Vance Industrial Electronics, Palmer Energy Systems, ASE Supply, Cruising America RV Service, Desert West Coach Service, Solatron Technologies and Hyline Service.

McKinstry was founded in 1960. However, it has a history dating back to 1934. George Allen and Merrill McKinstry formed the company as a result of the death of W.E. Beggs Company owner William Beggs. Like virtually all of the mechanical contractors of the 1960s, McKinstry originated as a plumbing and piping services firm. However, over the following decade, McKinstry added sheet metal, fire protection and temperature controls to its core capabilities and pioneered the design/build method of mechanical construction. McKinstry is now a full service mechanical contractor in the Pacific Northwest, with annual sales in the $100 million range. It employs around 650 staff and field technicians who help deliver a wide range of services, including mechanical construction, engineering, architectural metal, maintenance and facility management to many clients. Headquartered in Seattle, it also has branch facilities in Portland, Ore.