SMACNA members perform work in industrial, commercial, institutional and residential markets. They specialize in heating, ventilating and air conditioning; architectural sheet metal; industrial sheet metal; kitchen equipment; specialty stainless steel work; manufacturing; siding and decking; testing and balancing; service; and energy management and maintenance.

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

Thomas J. Finnegan represents a complete range of heating, air conditioning, and refrigeration equipment, control tools and supplies from world class manufacturers.

Thornhvac is a niche recruitment consultancy that prides itself on having a deep understanding of the HVAC industry in the UK.

Since 1960, Tom's Mechanical, Inc. has been standing apart from competitors by going the extra mile to provide quality service. With an A+ rating from the Better Business Bureau, the company has helped thousands of clients with a wide variety of HVAC services, ranging from the most straightforward to the most complex.

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.

TTMD was established in 1992 for the development of Plumbing Engineering and the services it provides to the society in the fields defined in the definition, and today it has become an association where professionals from different disciplines gather for common purposes.

U.S. Climate Alliance states are committed to taking real, impactful, on-the-ground action that urgently addresses the climate challenge. In becoming an Alliance member, member states commit to achieve the Paris Agreement’s goal of keeping temperature increases below 1.5 degrees Celsius globally.

The mission of the Department of Energy is to ensure America's security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions.

Founded in 2003, Utilita was created to challenge the Big 6 energy suppliers by empowering everyone with a fair and flexible service that’s good for the pocket and planet.

Vigour Unity was founded in 2019. Since then, they have become the leading provider of efficient HVAC solutions in Egypt, using VRF technologies to deliver a wide range of HVAC solutions, including Suppling, Maintenance, Aftersales Services, Studying, Technical Support, and System Selection. Their experienced, committed, and innovative mechanical engineers are specialized in VRF Systems.

Warm Homes Suffolk - The Warm Feeling Fund is a partnership program with Suffolk Councils (East Suffolk Council, Suffolk County Council, Ipswich Borough Council, Babergh, and Mid Suffolk District Councils and West Suffolk Council). It is funded by Department for Business, Energy & Industrial Strategy (BEIS).

Women in HVACR was organized exclusively for educational purposes to further the growth of women in all areas of the HVACR industry, including technical, sales, management and ownership. Women in HVACR holds it's annual conference in conjuntion with Comfortech each year.

World Environment Center is an independent, global non-profit, non-advocacy organization that advances sustainable development through the business practices of member companies and in partnership with governments, multi-lateral organizations, non-governmental organizations, universities and other stakeholders.

The World Plumbing Council (WPC) is an international organization which aims to develop and promote the image and standards of the plumbing Industry worldwide. World Plumbing Day is an international event on March 11 every year, initiated by the World Plumbing Council as a means of highlighting the important role plumbing plays in the health, safety and sustainability of the community.

Zed-Air Heating and Air Conditioning was established in 1993, by Eric and Cindy Barron. Zed Air is an independently owned and operated company. Zed-Air Heating & Air Conditioning is a local company, and the community is very important and proud to support local charities like the Salvation Army and Mens Mission.