Armstrong International provides intelligent system solutions that improve utility performance, lower energy consumption, and reduce environmental emissions while providing a comfortable experience. They are innovators and globally leaders in intelligent system solutions for steam, air, and hot water.

Brasscraft provides water supply stopers, risers, fittings, gas appliance connectors, excess flow valves, water connectors, gas ball valves, drain cleaning machine and plumbing hand tools.

Gas pressure regulators; electronic gas flame modulation systems, shut-off valves, manual gas ball valves and gas combination controls.

Midwest is a leading wholesale supplier of HVACR equipment and service parts. They mostly serve their Northern Michigan markets.

Niles Steel Tank is a fabricator of shop built ASME Code pressure vessels and steel tanks for all industries. They provide quality products to OEM’s, engineering & procurement companies, and facility management firms. Industries served range from refineries, military, chemical plants, aerospace, press equipment manufacturers, boiler manufacturers and many others

Refrigeration Research Inc. are manufacturers of high-quality commercial/industrial refrigeration and air conditioning components. Refrigeration Research uses hydrogen brazing to assemble tanks, which ensures a clean, contaminant-free process – helping to avoid problems. They also provide personal, accessible service.