OpenTherm is a non-manufacturer-dependent system of communication between modulating HVAC appliances and room thermostats. It consists of a communication protocol and an interface specification. The OpenTherm communication protocol is primarily designed to control modulating heating appliances. The protocol is available to members of the OpenTherm Association only.

The Perfect Technician Academy is a school for Heating, Ventilation, and Air Conditioning (HVAC), created out of the need for a fast-track training program that could develop students ready to perform at high levels entering the skilled trades industry. They are committed to training and preparing heating, ventilation and air conditioning (HVAC) technicians for successful careers.

Reacond Associates is a company that works towards selling and partnering with huge HVAC brands and supports the success of their customers and manufacturers.

REFCOM is the UK's market F-GAS certification scheme, operating since 2009. They help companies make sure that they comply with F gas regulations since 2014.

REHVA is The Federation of European Heating, Ventilation and Air Conditioning associations founded in 1963. REHVA's mission is to develop and disseminate economical, energy efficient, safe and healthy technology for mechanical services of building; to serve its members and the field of building engineering (heating, ventilation and air conditioning) by facilitating knowledge exchange.

Rhodes and Stafford is a company that serves as a representative of companies like Diversitech, Southwark Metals, Berry Global, J. P. Lamborn, Uni-Weld, Hardcast, Glasfloss Industries, Honeywell Genesis Cable, Truaire, Soler&Palau, Fujitsu, JB Ind., Builder's Best, Pro1, Trion.

As a globally recognized professional body, everything that Royal Institution of Chartered Surveyors do is designed to effect positive change in the built and natural environments. Through their respected global standards, pioneering professional progression, and their trusted data and insight, RICS promotes and enforce the highest professional standards in the development and management of land, real estate, construction, and infrastructure.

Sales ​​Engineers Inc. is a manufacturers' representative selling to the heating, plumbing and specialty refrigeration markets. Their emphasis is on distributor oriented business with a contractor/dealer focus. They represent the following manufacturers: Purolator, Broan-Nutone, Gastite, Nortek Global HVAC, First Company, Lenox, Hilmor, Shurtape, and Thermaflex.

Mfrs. reps. covering six New England states and calling on hydronic, HVAC, burner supply and plumbing/heating wholesale distributors for residential and commercial applications.

Sandia Group, Inc. offers premier sales representation to all sectors of the HVAC and Refrigeration markets throughout the state of New Mexico.

The Scientific Advisory Group for Emergencies (SAGE) is a British Government advisory body that advises central government in emergencies. Specialists from academia and industry, along with experts from within government make up the participation, which will vary depending on the emergency

Select Global Events is a newly formed exhibitions and conference organizer, specializing in launches and managing shows from inception into global brands.

Shore Distributors, Inc. are wholesale distributors of HVAC and plumbing supplies across Del-Mar-Va. They have training programs and product seminars too.

Shupe, Carboni & Associates specializes in the introduction and promotion of selected quality products to HVAC wholesalers in Georgia, Alabama, Mississippi, Tennessee, Kentucky, and Florida. They represent ADP, Atco Flex, Nashua/Polyken Tape, RectorSeal, MagicPak(Allied Air), TRUaire, Glasfloss, Honeywell, LG Electronics, Hardcast, Soler&Palau, Tjernlund, Williams, A-Gas Refrigerant, General Filters, Milwaukee Tool, NAVAC, Cerro.

The Society for Public Health Education (SOPHE) is a nonprofit, international professional association with a diverse membership of health education professionals and students. The organization promotes healthy behaviors, healthy communities, and healthy environments through its membership, its network of local chapters, and its numerous partnerships with other organizations.

Stamberger-Sender Assoc. Inc. covers the US States of New England, New York, Pennsylvania, New Jersey, Maryland, Delaware, Virginia and Ohio since 1947. They specialize in marketing portfolio to wholesale distributors, engineers, OEMs and installing contractors.

Steinmetz & Associates Inc. renders services to the air conditioning, refrigeration, appliance parts industry and automotive AC.

Sunbelt Marketing, Inc serves as a manufacturers’ representative/master distributor of plumbing, piping and HVAC/R products to traditional wholesalers. Sunbelt uses technical expertise, extensive sales coverage, and superior logistics to exceed the expectations of wholesalers and manufacturers.

Svensk Ventilation (The Swedish Ventilation Association) is a trade association that represents the ventilation companies in Sweden - manufacturers, installers, service companies, dealers and consultants. Together, their member companies employ approximately 10,000 people in Sweden. The association focuses on the importance of indoor air for health and the possibilities of ventilation technology to reduce energy use in buildings.

Synergy Solution Group is a network of peers who share the same vision, drive, and passion for the commercial HVAC industry.

The Texas Air Conditioning Contractors Association is a non-profit trade association for the heating, ventilation, air conditioning and refrigeration contractors in Texas, USA. These contractors design, install, maintain and service HVAC/R systems, guided by principals of honesty and integrity. TACCA is committed to improving the industry by helping members succeed.

The Association for Decentralised Energy is the voice for a cost effective efficient, low carbon, user-led energy system; a market in which decentralized energy can flourish. The association helps people to understand the many benefits of an integrated approach to delivering energy. They strive for a more cost effective, efficient and user orientated energy system.

The Brick Consortium, Inc. is a non-profit membership corporation whose purpose is to encourage the research and development of Brick Schema Specifications for the built environment and any supporting tooling, documentation, and best practices necessary to promote Brick. The consortium develops the Brick Schema Specifications as open source through member participation.

The Climate Group works internationally with leading businesses, states and regions to deliver a world of net zero greenhouse gas emissions and greater prosperity for all.

DG Haustechnik represents its members on a national and international level and offers them work and decision-making aids on fundamental issues relating to the market, competition, economic policy, business administration, finance and taxes, training and further education or advertising. The DG Haustechnik also promotes the cooperation of the building technology wholesalers with the companies of the next economic level.

Founded in 1968, HRAI is a non-profit trade association of manufacturers, wholesalers and contractors in the Canadian heating, ventilation, air conditioning and refrigeration (HVACR) industry. HRAI advocates a safe, responsible and fair industry where indoor environment systems and refrigeration processes are designed, installed and serviced by qualified professionals in order to ensure efficient and energy-conscious operation.

The New Flat Rate creates customized menu pricing for services, repairs, and new equipment installations for several different industries including HVAC, Electrical, and Plumbing.

The Testing, Adjusting and Balancing Bureau (TABB) is an organization made up of top heating, ventilating, air conditioning and refrigeration professionals. Since 1981, TABB has set the certification standards for the HVAC industry. TABB is the first and only HVAC testing, adjusting and balancing certification program accredited by the American National Standards Institute (ANSI).

Thermco is the area’s premier agency representing manufacturers in the sale of heating, ventilating, refrigeration, air conditioning and plumbing products

TruEnergy is an Ofgem licensed energy supplier offering bespoke contracts for businesses and is the supplier of choice for utility splitting companies. TruEnergy works with entrepreneurs, property landlords, facility managers and businesses to make energy procurement simple and cost-effective.