JML Heating & Cooling Inc. is a fully licensed and equipped company to offer users a complete range of HVAC services. They have both the technical expertise as well as the experience to know how to handle all jobs, big or small.

Johansen & Anderson is the premier HVAC company providing quality air conditioner installation and repair, furnace installation and repair, and refrigeration installation and repair for both residential and commercial buildings.

For over 100 years, Flex-Weld Incorporated and KEFLEX™, a division of Kelco Industries, has manufactured high-quality flexible metal hose, bellows, expansion joints, and other flexible engineered components at our facilities in North America. Our products are available in a wide variety of material types, sizes, and configurations and are used to isolate vibration, control axial and lateral motion, and compensate for thermal pipe expansion and co

Kleen Sweep Maintenance is A Full-Service Heating, Air Conditioning, Venting and Chimney Company.

Klein Tools of professional hand tools and occupational protective equipment, Klein Tools' product line has grown to include virtually every major type of hand tool used in the electrical and telecommunications markets, as well as for aviation, construction, electronics, mining and general industry.

Klimawent Usa, Llc supplier of dust collectors, fume arms, fume extractors and other environmental control and filtration equipment in Crystal Lake, IL. They are continuously investing in modern infrastructure and advanced technologies, in qualifications of employees as well as in successful methods of managing, scientific research, and improvement of the processes and appliances.

Kulacz & Sons Heating & Cooling is a fully licensed and fully staffed HVAC contractor with the size and capability to meet all the needs, yet dedicated to providing the users with the same personalized service and friendly small business touch that has always kept the customers coming back.

Littelfuse is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 15 countries, and with 19,000 global associates, they partner with customers to design and deliver innovative, reliable solutions.

Since 1917, have distinguished our image as a high-quality contract job shop specializing in all areas of precision machining. During our 95-year history, LTL Company has established a reputation for superior skill and performance in the production of all types of parts and tools.

Madison Industries is a globally-renowned mechanical engineering, HVAC equipment and industrial automation solutions firm conglomerate based out of Chicago, Illinois, USA. The conglomerate believes and strives in providing a safer and healthier world, with state-of-the-art electronics, HVAC equipment, home and building automation systems that are energy efficient and cost effective.

Martin Brower is an innovative global supply chain leader providing end-to-end solutions for restaurant chains across 18 countries. They are a company with innovation at the core, where ingenuity is continually encouraged and imagination is carefully nurtured. It is a multi-billion dollar company, fueled by constant innovation, enduring customer loyalty and smart acquisitions.

McCarty Bros. Inc. has been in the business of maintaining HVAC systems in the Chicagoland area for over 70 years. They do know a thing or two about it. They have service maintenance customers who have been with us for over 50 years.

McNally’s Heating and Cooling has over 25 years of experience serving St. Charles IL and the surrounding community. They are the repair, installation, and maintenance partner of choice for Kane County residents and they’re available 24/7 to service the HVAC needs of the customers.

MetroTech has provided HVAC solutions leveraging a technology-enabled modern work order management system throughout the US since 1986. MetroTech Service Corporation is a privately held HVAC service company providing preventive maintenance, emergency service repairs, and HVAC design/installation services to prominent multi-site commercial and retail customers across the United States.

Mike’s Bremen Service has merged with Comfortmate Heating and Air. Both family-owned companies are well versed to install and service all heating and cooling equipment, as well as most appliances. They look forward to continuing to serve all customers heating, cooling, and appliance repair needs.

Mitsubishi Electric Automation, Inc. is a U.S. affiliate company of Mitsubishi Electric Corporation. It offers a broad product portfolio including programmable automation controllers (PAC), programmable logic controllers (PLC), human-machine interfaces (HMI), variable frequency drives (VFD), servo amplifiers and motors, control software, computerized numerical controllers (CNC), motion controllers, robots, low-voltage power distribution products,

Munch's Supply is a wholesale distributor of Heating, Ventilation and Air Conditioning (HVAC) equipment, parts and supplies servicing the Chicago, Northwest Indiana and Michigan.

NAEIR is a national nonprofit organization that takes in donations of excess inventory and redistributes those goods to schools and nonprofit organization.

North Shore Heating & Cooling, is an Illinois (IL) Heating, Cooling, Air Conditioning, Water Heater, Boiler, and Furnace repair, service, replacement and maintenance company, located in Glenview area. North Shore Heating & Cooling employs only the best technician for air conditioner repair, furnace repair, and water heater repair as well as all air conditioner replacement, furnace replacement, and boiler replacements.

Northern Weathermakers HVAC, Inc. provides a range of solutions, including in the scope of Building Automation, Equipment Replacement, Preventative Maintenance and HVAC solutions.

OceanAire is a manufacturer of portable air conditioning units, built specifically for commercial and industrial use. They provide portable air conditioners and heat pumps. 1-5 ton air-cooled and water-cooled models.

When it comes to heating & cooling for home or office, Palatine Unique Indoor Comfort provides expert HVAC installation & repair services in Palatine & nearby areas of the US state of Illinois.

Parts Town is an innovation-driven distributor of genuine OEM food service, residential appliance, and HVAC equipment repair parts. When there’s a hiccup with any piece of equipment, Parts Town is ready to jump in and help with the most in-stock parts on the planet, innovative technology, and an unmatched customer experience.

PHIUS (Passive House Institute US, Inc.) is an organization committed to making high-performance passive building the mainstream market standard. PHIUS+ buildings provide superior indoor air quality, resilience during power outages, and an extremely quiet, comfortable indoor environment.

Paul's Heating, Cooling, and Duct Cleaning and team of technical specialists are specialized in the installation and service of all major brands of quality heating and air conditioning equipment for both residential and light commercial use.

Petrik And Son Inc., the air conditioning service and repair firm in Clarendon Hills IL. They specialize in offering a wide range of air conditioning services including: air conditioning and heating needs.

Phillips Heating and Cooling Services is a family-owned and operated local business that specializes in residential and light commercial HVAC systems repair, maintenance, replacement, custom sheet metal, and new construction.

Phoenix Air Control, Inc has been providing quality HVAC products to contractors and end users in the Illinois and Northwest Indiana area since 1982 and is based out of USA.

The Plastic Pipe and Fittings Association (PPFA) is a North American trade association comprised of member companies that manufacture plastic piping, fittings and solvent cements for plumbing and related applications, or supply raw materials, ingredients or machinery for the manufacturing process.

PremiStar, formerly Reedy Industries, operates a footprint of 41 commercial HVAC, building automation and plumbing branch locations across 12 states. PremiStar helps critical facilities owners and managers in commercial, municipal, educational and industrial market segments achieve more cost-effective, more energy-efficient and healthier environments.