CSTK is a diversified transportation solutions provider of products and services for a variety of applications, including Thermo King transport refrigeration units, comfort systems, auxiliary power units, customized truck bodies, construction equipment, trailer repair & parts, aftermarket HVAC for vehicles & equipment, fleet vehicle graphics, lift gates, trailer skirting, and much, much more. CSTK also offers parts and service for all products.

CSW Industrials is a diversified industrial growth company with a portfolio of industry-leading businesses in Industrial Products and Specialty Chemicals. Their products include mechanical products for heating, ventilation and air conditioning (HVAC) and refrigeration applications; coatings and high-performance specialty lubricants.

CTK International (Thailand) Co., Ltd. is a manufacturer and distributor of air filters and air filters. The company has executives with over 20 years of experience and is recognized as one of the leaders in the production of air filters and air filters for industrial plants. The company has produced various products for the public both domestically and internationally.

Cubic Sensor and Instrument Co., Ltd. (hereinafter referred to as "Cubic") is a publicly listed company in SSE STAR Market (stock code:688665), specializing in smart gas sensors and superior gas analyzers. Set up in 2003, situated at “Optics Valley” of Wuhan, China, Cubic has established gas sensing technology platforms including optical technologies .

Cullen Mechanical Inc is a factory authorized service, install and Startup Company for multiple manufacturers. They are a commercial based mechanical company specializing in heat and cooling plants, roof top equipment and energy recovery systems.

Cummins Inc. empowers people to grow their careers through meaningful work, building inclusive and equitable teams, coaching, development and opportunities to make a difference. Their wide range of services include Cummins Engine Business, Cummins Power Generation, Cummins Distribution Business, Cummins Turbo Technologies, Cummins Emission Solutions, Cummins Fuel Systems, Cummins Filtration, and Cummins Electrified Power.

Cunningham, Inc. is a mechanical contractor that believes in providing the highest value to customers with high-quality craftsmanship, and cutting edge technology. Their broad range of services include HVAC equipment, plumbing, electrical, architectural metals, industrial and commercial services, and Geo-thermal solutions.

The Copper Sustainability Partnership – CuSP for short - wants to challenge the norm and break the mould to achieve greater environmental thinking, sustainability and longevity within both construction and plumbing industries.

Custom Filters Direct is a reputable manufacturer and supplier of high-quality, custom-made filters catering to various industries. With years of experience in the field, they offer a comprehensive service from design to delivery. Based in New York City, Custom Filters Direct serves the entire USA, and they have one of the country’s largest selections of air filters ready for delivery.

D-Tech Sales are the HVAC/R manufacturer's representative covering California, Nevada, Arizona and Hawaii representing Eaton B-Line, Hartell Pumps, CFM Fans, Fieldpiece Instruments, REFCO, Panasonic HVAC, Williams Comfort Products, Sensible Products, Dow Products, EWC Controls, Eaton-Edison & BMP Refrigerants.

D.T.M. Heating And Air Conditioning proudly serves Dallas - Fort Worth Metroplex, Texas area. As a trusted and reliable HVAC contractor, they specialize in a variety of HVAC installations. They offer comprehensive services including AC repairs, AC installations, thermostat services, heat pump repair, and gas furnace repair. Their expert technicians deliver exceptional service using top-quality parts and equipment.

D&E Air Conditioning has grown to become a market and knowledge pioneer in the delivery of sustainable climate solutions. They have a track record of delivering innovative, practical and workable solutions for some of the most challenging landmark projects.

Dab Pumps spa are a multi-national organization specializing in water movement technologies. They provide Centrifugal pumps, Pump systems, Pump services, residential building services, and commercial building services.

Dabek Heating & Cooling is a full-service HVAC Company based in Trever, WI. They specialize in installing any makes and major brands of heating and air conditioning systems including air conditioners, water heaters, radiant heating systems, whole home monitoring systems and more.

Daikin Air conditioning India Pvt. Ltd. (DAIPL) is a 100% subsidiary of Daikin Industries Ltd., Japan, a globally renowned manufacturer of commercial-use and residential air conditioning systems. Backed by the superior technology, the organization offers a wide range of energy efficient air conditioning solutions to the Indian customers.

A wholly owned subsidiary of Daikin Industries Ltd., delivers engineered advanced HVAC technology for commercial, industrial and institutional customers with knowledgeable application expertise.

Daikin Comfort is a global indoor comfort solutions provider. From heating and cooling replacements to indoor air quality improvements. The people at Daikin strive to enhance HVAC reliability, efficiency, and sustainability every day.

Daikin is a leading innovator and worldwide provider of advanced, high-quality air conditioning and heating solutions for residential, commercial and industrial applications. In their nearly 90 years of operation, Daikin has sold millions of systems throughout 90 countries. It is their commitment to quality, service and innovation that has allowed them to become the largest manufacturer of HVAC systems and refrigerants in the world.

Daiwa Industries Ltd is a Japanese company that primarily manufactures, sells, and leases freezers, refrigerators, showcases, ice machines, vending machines, cold-applied products, kitchen equipment, equipment, and parts. The company is also involved in planning, designing, and construction of stores and kitchens.

Dakota provides innovative products and experienced service solutions for: • Electricians • Plumbers • HVAC Technicians • Contractors • Communication companies • City utilities and rural cooperatives • Municipal and rural water systems • Electric, water and gas utilities interested in the latest in metering technology systems • Any company or contractor who utilizes filters and filtration systems

Dale Automation, established in 1999, is based in Johannesburg, South Africa. With hundreds of automated spiral systems installed in South Africa, Botswana, Namibia, Swaziland, Zimbabwe, France, UK and Australia, Dale has achieved its vision of becoming a world leader in both the poultry and baking industries.

DALEMANS is a European company that offers innovative gas detection solutions for the HVAC sector in public buildings, industry and laboratories. DALEMANS designs and manufactures DALEMANS gas detection products, activates the systems and provides maintenance.

Bingshan adheres to digital empowerment and low-carbon development, embracing the digital wave tightly, through business dataization, data operationalization and data resourcization, and relying on Bingshan Industrial Internet cloud service platform and national service-oriented manufacturing demonstration platform, providing a safe, green and intelligent refrigeration and heating products.

Dallas Plumbing Company is a family-owned commercial and residential HVAC and plumbing company based in Dallas, Texas since 1903. They have sold, installed, maintained and repaired thousands of air conditioning systems across the Dallas area.

Dan Cain is a lifelong Cincinnatian, born and raised on the west side of the city. With over 30 years of experience in the heating and cooling industry, Dan Cain Heating & Cooling has built a reputation as one of Cincinnati’s most reliable and meticulous HVAC services provider. Dan is an authorized Bryant dealer who installs new heating and air conditioning systems, as well as services existing equipment.

Danaher Corporation is a global science and technology innovator committed to helping customers solve complex challenges and improve quality of life around the world.

Danfree Building Solutions provide dependable and expert refrigeration repair services. DBS is commitment to quality, responsiveness, and strong client relationships. They proudly serve hotels, restaurants, grocery stores, commercial buildings and always strive to keep their operations running smoothly.

Daniels Fans is a manufacturer of high-temperature fans, with thousands supplied to furnace manufacturers worldwide.

Representing top quality manufacturers to HVAC/R wholesalers in AL, N.W. FL, GA, MS, NC, SC and TN with offices in Birmingham, Atlanta, and Charlotte.

David Services Inc. provides heating, cooling, heat pump, furnace & air conditioning installation, repair & maintenance in Lancaster and the surrounding areas.