Cambridge Engineering is a manufacturer of energy efficent heating/ventilation systems; gas-fired HTHV space heaters, and make-up air units.

Electro Plastics Inc. dba. STEP Warmfloor® (Self-regulating Technology of Electro Plastics) is an engineering company and the leading manufacturer of self-regulating flat heating elements. They heat floors and melt ice and snow across the globe through their unique and patented electric radiant heating system.

Filti based out of Kansas City, MO manufactures and distributes high quality HVAC filters for all types of homes. Their primary mission is to support healthier lifestyles by providing superior air quality.

Nu-Calgon markets and distributes a complete line of specialty chemical products for the HVACR aftermarket. They provide water treatment, sealants, specialty and service chemicals, coil cleaners, system flush solvents, refrigeration oil, vacuum pump oil, ice machine treatment, indoor air quality.

Stock Cap is a globally renowned manufacturer of plugs and caps for use in the HVAC industry. They are also one of the largest manufacturer of flexible closures in the world. In addition to the large selection of stock products, they offer experienced engineers who are available to develop customized solutions for your product protection needs.

Total Comfort Resource LLC, the team of specialized technicians researches, diagnoses, and resolves a variety of operational and maintenance problems. They combine technical analysis with industry experience to identify potential solutions, and address issues down to the root causes.