American Lung Association is the leading organization working to save lives by improving lung health and preventing lung disease through research, education and advocacy.

American Residential Services (ARS) is a brand of American Residential Services LLC., which provides heating, air conditioning, indoor air quality, plumbing, drain cleaning and sewer line services from company-owned locations across the United States of America (USA). United by exceptional service, the ARS® / Rescue Rooter® Network serves both residential and light commercial customers.

ASHRAE, is a company that focuses on achieving well-being through sustainable technology for the built environment. The Society focuses on building systems, energy efficiency, indoor air quality, refrigeration and sustainability.

ASA is the voice of trade contractors to improve the overall business environment for the construction industry. ASA is also the united voice of the subcontractors, specialty trade contractors, and suppliers before all branches (executive, legislative, judicial) and levels (federal, state, local) of government.

The American Supply Association is the national industry trade association representing distributors and their manufacturers and manufacturer representative agencies serving the PHCP & PVF channel. They are committed to giving their members the ability to adapt, grow and succeed through robust programs in code, legislative and regulatory advocacy, ongoing business intelligence, employee training and education as well as dynamic networking opportu

AMETEK, Inc. is a global provider of industrial technology solutions serving a diverse set of attractive niche markets with annual sales over $6.0 billion. AMETEK has over 18,500 colleagues at more than 150 operating locations in 30 countries around the world. Their mission is to solve their customers' most complex challenges with differentiated technology solutions.

Amplafide is an AI-powered, cloud-based software platform built specifically for home service businesses—HVAC, plumbing, electrical, roofing, landscaping, and more. Designed to streamline operations and boost profitability, Amplafide offers an all-in-one solution for scheduling, dispatching, invoicing, customer communication, and business analytics. With intuitive tools and AI integrations, Amplafide helps companies close more jobs.

AMS Technologies is Europe’s pioneer solution provider and distributor for Optical, Power and Thermal Management Technologies. AMS Technologies is a solution provider and distributor of high-tech, leading-edge components, systems and equipment, with more than 30 years of experience to date and currently serving more than 2000 European customers.

Amtech is a renowned provider of ceiling mounted temperature and humidity control systems. They also stock packaged and split commercial ACs, condensing units, heat pumps, and MUA Units.

AMWEI Thermistor Sensor design and manufacture PTC & NTC thermistors (THERMally sensitive resistors), thermistor temperature sensors probe. AMWEI started Thermistors business back in 1999, thorough successive hard work of a group of specialists in ceramic sensitive material, welding technology, packaging technology. They own core know-how in powder formula and key production technics.

Anabas is a different kind of Facilities Management (FM) Company. Their building maintenance services are focused on the detail, to make sure the facilities are maintained to the highest standards.

A fixture in the greater Portland area since 1976, Anctil Heating & Cooling offers a full lineup of residential and commercial services—from installing brand-new furnaces in vintage Portland homes to repairing and maintaining commercial HVAC systems.

Anda Engineering Ltd. is a completely automated electronic office that provides professional HVAC and fire safety design services for commercial, industrial, institutional, recreational and residential type buildings.

At Andersen Air, they take pride in providing high-quality heating and air conditioning services to the Hood County and Johnson City areas. As a family-owned and operated business since 2003, they understand the importance of a comfortable home or commercial space. Their experienced HVAC professionals are licensed, bonded, as well as insured and are here to help with all diverse heating and air conditioning needs.

Anderson is a trusted partner for all home and business comfort needs, specializing in heating, cooling, plumbing, drain & sewer, and electrical services. With a team of NATE-certified technicians and a commitment to excellence, they ensure every job is completed with precision and care. As a BBB-accredited company, they take pride in delivering reliable, high-quality solutions tailored to specific needs.

At Anderson Heating, Cooling, Plumbing & Electric, we understand the importance of reliable HVAC and plumbing services. Their team takes pride in ensuring the home is equipped with top-notch climate control and plumbing systems, contributing to its functionality and comfort. With their expert maintenance, the HVAC system guarantees improved indoor air quality and energy efficiency.

Andrews Sykes Group is the UK’s pioneer specialist hire company, they provide the best pumping, heating and cooling solutions for every conceivable need, location, and application. They aim to help their customers address the real-life challenges they face – whether planned or emergency – in the quickest, most professional and cost-effective ways.

Anemo Prime specializes in designing, engineering, and installation of complete Heating, Ventilation and Air Conditioning Systems. Their foundation of uncompromising integrity, unequalled service and effective project management make us the value pioneer in this market.

ANEO will invest heavily in renewable energy production, electrification, and energy efficiency. Their goal is to be a trailblazer for the green shift with the will and investment power to develop new green value chains.

Anton’s is a full-service HVAC and plumbing company serving St. Louis and the surrounding areas. With over 40 years in business, this family-owned company is dedicated to serving their community with high-quality services at affordable prices. Moreover, their Proud Independent Trane Dealer status and NATE-certified technicians ensure that customers get not just reliable, but also quality service with each and every visit.

Antrum continuous indoor air quality monitoring systems, which when integrated with the BMS, create healthier, more efficient buildings. AntrumX™ monitors the Indoor Air Quality (IAQ) of up to 32 spaces from a single location.

AO AMZ Ventprom are the only domestic manufacturer of main ventilation fans for mines, tunnels and underground.

Alfieri Proctor Associates (APA LLC) has been a distinguished manufacturer's representative specializing in HVAC equipment. Their focus on heating, ventilation, and air-conditioning products positions them as leaders in supplying airflow solutions tailored for diverse commercial sectors such as healthcare, pharmaceuticals, research, and semiconductor facilities.

Apex Contractors have been trading successfully since 1997 within the construction market during which time they have carried out a vast number of projects in varied fields. They are committed to continual improvement and always strive to push towards delivering the best value possible for clients and customers.

Apex Controls was opened in 1990 with a goal to distribute commercial HVAC and industrial control products with the distinction of offering exceptional service to every customer. For the past 30 years, quality service and competitive pricing have made Apex Controls an industry pioneer in HVAC distribution.

Apex is in it's existence since 1960, aimed at manufacturing quality flow control valves for industry, building services, plumbing, irrigation and power generation. The 40 years of experience behind helps to produce the quality that is par excellence. Equipped with the latest machinery and technology ensures the quality of the product at its best. Valves are manufactured with special stress upon quality.

Get the best plumbing, heating, and cooling for your home in Akron, Kent, and surrounding areas when you depend on the experts at Apollo Plumbing, Heating & Cooling. With over 17 years of delighted customers, users will experience a great level of service.

APP Wholesale Ltd is a national distributor of central heating, hot water, plumbing, and renewable products serving thousands of customers daily throughout the UK. A pioneering supplier within the industry, offering an unrivaled service and fulfillment prospect, supported by a dedicated and knowledgeable team located in 11 strategic locations.

Appalachian Refrigeration Heating & Cooling is the local choice for reliable, no-nonsense cooling solutions that puts comfort first. Located in Avawam, Kentucky, they bring a customer-first mindset to every visit, from quick troubleshooting calls to full-system upgrades. They help to create lasting comfort for homes and businesses by installing and maintaining high-efficiency systems at an affordable price.

Applegate Heating & Air Conditioning specializes in heating, air conditioning, and sheet metal work. It serves residential, commercial, and industrial projects. It specializes in sheet metal design, fabrication, and installation for projects of all sizes, ranging from $100 to $25,000,000.