Sauer is the full service Mechanical Contracting Company providing HVAC, Industrial Piping, Plumbing, Instrumentation, and Maintenance Services. Sauer Group is a division of Sauer Holdings Inc., headquartered in Pittsburgh, Pennsylvania.

Sheet metal duct, pipe and fittings for the HVAC industry; green label zero leakage fittings, Seal-Tite Rx antimicrobial duct and fittings.

Service-Tech Corporation specializes in complete heating ventilation and air conditioning (HVAC), air duct, industrial, and kitchen exhaust cleaning.

Shook Mfg. Products Inc. specializes in fasteners and tools for over fifty years now. They provide products with high-quality design, performance and usability. Their range of products include tools & hardware for the HVAC/R, roofing, and many other home improvement industries.

Skuttle Indoor Air Quality Products specialize in Indoor Air Quality, humidifiers, make-up air controls, air cleaners, air cleaner replacement media.

Smart Service is a US-based provider of HVAC software solutions for a wide range of applications. Smart Service adds scheduling, dispatching, and more to QuickBooks, helping companies streamline their operations and eliminate waste.

Stack Heating & Cooling provides unparalleled HVAC services for residential and light commercial customers in the Cleveland, Ohio, area.

Style Crest is a premiere distributor and manufacturer of building products serving the new residential, remodeling, and mobile home-manufactured housing markets. Style Crest partnered with Nortek Global HVAC in the design and engineering of its line of Revolv Indoor Comfort Products. The products include split-system air conditioners and heat pump condensers, indoor coils, furnaces, line sets, compact package coil cabinets and accessories.

Temperature Supply Inc. is a US-based renowned wholesale distributor of heating, ventilation, air conditioning and refrigeration equipment, parts and supplies.

The Gasflux Co. is a renowned manufacturer of specialized in-line fluxing process for brazing of coil and compressor lines. The Gasflux Co. process is designed to work with copper to copper, copper to brass, copper to steel. The company also manufactures a full line of brazing paste fluxes for silver and bronze filler metals.

Based in Ohio, Transducers Direct is one of the fastest growing manufacturers of pressure transducers, pressure sensors, and industrial components. The company was founded in 1999 by pressure sensor business insiders who saw an unserved need in the industry; for customers to have a higher quality product and greater technical customer service.

Troy Filters Ltd. is a custom manufacturer and supplier of filters and filter media for a variety of applications, including equipment protection filters, HVAC air filters, HEPA and cleanroom filters, paint spray booth filters, gas phase filtration, industrial air filters, power generation filters, and an extensive offering of OEM replacement filters.

TruTech Tools Ltd. is a company based in Ohio that provides the best testing equipment available for contractors & technicians working in HVAC/R, building and home performance, facilities and industrial, energy auditing and home inspectors.

Hays Cleveland Combustion Control Products is a division of UniControl Inc. Industries Served by Hays Cleveland Combustion Control Products include: Commercial and Industrial Markets: fire-tube & water-tube boiler applications. Federal & State Institutions: control and instrumentation systems and services.

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.

VENTS manufactures residential and commercial centrifugal, axial, mixed flow ventilation fans and recovery ventilators. They provide unique, innovative solutions such as single room recovery ventilators.

Vertiv brings together hardware, software, analytics and ongoing services to ensure its customers’ vital applications run continuously, perform optimally and grow with their business needs. Vertiv solves the most important challenges facing today’s data centers, communication networks and commercial and industrial facilities with a portfolio of power, cooling and IT infrastructure solutions and services that extends from the Cloud to the Edge.

Wauseon Machine, Inc. (WM) started as a small contract machine shop in 1983. Currently, they offer those same services in Plant 1, where it specializes in build-to-print tooling, prototypes, and precision machining.

Waxman is a globally renowned company in the design, development, and distribution of innovative surface protection and floor care products, other home improvement and hardware products, including faucets and showers; plumbing products and accessories; and home organization and storage solutions.

Weatherking Heating & Air Conditioning provides solutions like Air Conditioning, Heating, Air Quality, etc and is based out of USA.

Winsupply Inc. is a supplier of residential and commercial construction and industrial supplies and equipment headquartered in Dayton, Ohio. They conduct business-to-business wholesale distribution of supplies and equipment in plumbing and heating; hydronics; pipe, valves and fittings; HVAC and refrigeration;

Wolfe Innovations prides itself in being the best overall in HVAC customer service, low competitive prices, and trustworthiness.

Worthington Industries are renowned US-based provider of hand torches, fuel, solder, braze and accessories. Non-refillable and refillable portable refrigerant cylinders, recovery and recyclable cylinders, and high pressure industrial gas cylinders.

Zimmer's Heating & Cooling business has expanded to include residential, retail, and commercial heating and cooling.