Founded in 1923, Aerofin is a leading manufacturer of spiral fin and plate fin heat exchanger coils and related heat transfer equipment, such as process gas coolers/heaters, transformer oil coolers, fin-fan units, integral face and bypass coils, frames for coil removal capabilities, and airside transitions.

The Copper Development Association Inc. is the market development, engineering and information services arm of the copper industry, chartered to enhance and expand markets for copper and its alloys in North America.

The International Institute for Sustainable Laboratories (I2SL) is devoted to the principles of sustainable laboratories and related high-technology facilities, from design to engineering to operation. Through worldwide partnerships and the exchange of technical expertise, I2SL will encourage the development of high-tech facilities that address the rapid pace of science, medicine, research, and development in a dynamic environment.

ITI supports apprenticeship and advanced career training for union workers in the sheet metal industry throughout the United States and Canada. Located in Fairfax, Virginia, the ITI produces a standardized curriculum supported by a wide variety of training materials free of charge to apprentices and journey-level workers who work in the following specialized disciplines: Architectural Sheet Metal, Building Information Modeling,& HVAC Service.

Marlo is a manufacturer of Modular Air Handling Units (AHU’s), Cooling, Heating, Steam, DX (refrigerant) coils, shell & tube heat exchangers and various equipment for the Military.

Southern Trust Home Services is a leading electrical, HVAC, and plumbing company serving southwest Virginia.