EHG is a spiral duct and fitting manufacturer with representatives across the USA. In addition to the company's superior G-3 gasketed duct system, EHG offers project management, special packaging, racking, online submittals and much more.

EMS Ice, Inc. provides a total cleaning solution for customers while meeting or exceeding quality standards at a competitive price. EMS Ice was founded and incorporated in 1996; providing an environmentally engineered solution for difficult cleaning, coatings removal, and surface preparation problems.

Enginuity Power Systems provides innovative engineering methodologies for HVAC and plumbing design, and application in practical ways to design projects using sustainable design principles and the integrated design process.

Gustafson is a spiral duct and fitting manufacturer that markets to wholesalers and dealers. The company offers conventional air duct systems, as well as self-sealing and high velocity HVAC duct systems.