Northrop Grumman is a global security company providing innovative systems, products and solutions in unmanned systems, cyber, C4ISR, and logistics and modernization to government and commercial customers worldwide.

Pinnacle is a BIM service provider in offering customized solutions to Architecture, Engineering & Construction (AEC) firms globally. Pinnacle provides Marketing BIM Presentation, BIM Engineering Services, HVAC, and Revit family.

Proximity Systems, Inc. is a globally renowned provider of innovative health care furniture and HVAC technology solutions. From hospital examination rooms to training centers and airports, the company's diverse line of wall-mounted workstations, UVC disinfection devices, medicine cabinets, retail kiosks, and modular units enable caregivers, customers, and technology to interact in a safe, seamless, and effective manner.

Established in 1969, Purafil is a globally-renowned provider of molecular air filtration and indoor air quality (IAQ) solutions. They also provide a wide range of air filtration, air conditioning, odor control, corrosion control, toxic gas filtration, monitoring and chemical filtration solutions.

Qolsys Inc is a pioneer residential and commercial security and smart-home manufacturer. They provide smart thermostat, video monitoring, energy management and home automation.

Ranger Pumps is a privately held corporation that was founded in 1989 in Memphis, Tennessee. Ranger has become a domestic and international pump supplier. They pride themselves on manufacturing pumps in the USA from parts made in the USA.

REFCO Manufacturing Ltd. manufactures HVAC/R service products and mini split condensate pumps.

Regin HVAC Products Inc. are manufacturers of leak detectors, draft gauges, damper hardware, humidistats, expansion joints, air leakage testers, relay testers, leak test tools, hygrometers, and voltmeters.

Rotobrush International is a market pioneer in providing contractors, businesses and entrepreneurs with indoor air quality and energy efficiency solutions.

Sensaphone is a HVAC solutions company based in Aston, Pennsylvania, USA. They offer a comprehensive line of remote monitoring products that safeguard valuable assets by tracking critical environmental data such as temperature, humidity and power failures.

SenTech Corp. is a renowned provider of single and multi-point refrigerant monitors for early warning of refrigerant leaks for CFC's, HCFC's, and HFC's without false alarms or the need for periodic calibration.

At Swaim Electric Heating & Air Conditioning, they specialize in providing quality installation and service of residential heating and cooling, electrical, and whole-home generators.

The Energy Conservatory (TEC) is a renowned manufacturer and seller of the Minneapolis Duct Blaster and Blower Door, TEC WiFi Link, digital pressure and flow gauge, TrueFlow Meter and distributor for Flir IR cameras. TEC continues to set the standard for specialized air flow and pressure measuring devices used to monitor and analyze the complex interactions which determine building performance.

TRU-Vu is a US-based renowned provider of video display and surveillance solutions for over 30 years. They provide industrial-grade LCD video monitors and touch screens that are designed for 24/7 operation; ideal for system interface and control.

TAS Energy is a global technology company that provides clean, economic, modular energy solutions by focusing on the energy efficiency and renewable energy markets. They design and manufacture modular energy systems for the power generation industry; the district, commercial and industrial process cooling industries; data center/mission critical facilities; and the renewable energy sector.

The services of Vaughn Industries have grown into the industrial/commercial sectors, including electrical, mechanical (HVAC and Pipefitting), plumbing, and high voltage substation, high voltage transmission and distribution construction. They provide High Voltage Transmission and Distribution, High Voltage Sub Station, Commercial/Industrial Mechanical/HVAC, Commercial/Industrial Electrical, Renewable Energies, and Preventative Maintenance.

In 1984, Vertical Market Software (VMS) opened its doors to provide an integrated accounting and job costing system to general contractors throughout the country. VMS provides service, construction, and accounting software to software to contractors nationwide. They also offer a complete enterprise solution for efficient business management and optimization.

WDF Inc. (founded in 1929) is one of the plumbing, HVAC contracting and specialty general contracting companies. They have joined with Five Star Electric Corporation and Nagelbush Mechanical to form GreenStar Services Corporation as a diversified full service construction company.

WennSoft Inc. develops business software solutions that help HVACR companies manage labor-costs, schedule technicians and get invoices out quickly. Their inventory includes Service Management software for call management/dispatching, job costing software and project management software.

Wm. W. Meyer & Sons, Inc. are renowned manufacturers of commercial and industrial vacuums for cleaning ducts, boilers, furnaces and chimneys in residential, commercial, institutional and industrial applications.

Wrightsoft Corp. offer easy to use, drag-and-drop HVAC design and sales software that combines both residential and commercial loads, CAD-quality ducts, proposals and in-home sales tools.