The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) is an international trade association representing 1,834 member firms in 97 chapters throughout the United States, Canada, Australia, and Brazil. SMACNA’s HVAC Contractors Council develops programs, services and products that help members compete effectively in the HVAC duct fabrication, installation and building life cycle markets.

The Shenyang Blower Works Group Corporation (SBW) dedicates itself to the research, development, design, and manufacturing of turbomachinery including centrifugal/axial/reciprocating compressors, centrifugal blowers and pumps. The main areas of its application are oil & gas, chemical, metallurgy, power generation, etc.

Siemens provides quality standard products ranging from valves and actuators to sensors and thermostats. Energy efficiency, easy handling and long lifecycles are among the essential features of every single one of their products. And open communication standards like KNX and BACnet enhance compatibility and easily allow for seamless integration into building automation and control systems.

SIG Group is the globally renowned packaging solutions provider that follows the company's mission of moving towards a more sustainable world.

Sika Corporation, headquartered in Lyndhurst, NJ, is a specialty chemicals company with a leading position in the development and production of systems and solutions for bonding, sealing, damping, reinforcing, and protecting the construction, residential & home improvement, oil & gas pipeline and the transportation, marine, and automotive manufacturing industries. Sika's unique product technologies include concrete admixtures & fibers.

Sila Heating & Air Conditioning was started in 1989 by Jack Rothacker, third-generation heating, and air conditioning professional who took the company from a family business to one of the largest and most respected regional heating and air conditioning companies in the northeast, with operations from Maryland to Massachusetts.

Sirius Buying Group will get ahead of the competition with its collective trade purchasing power of more than £120 million+. Currently comprising 188 members and 250 retail outlets, Sirius by virtue of its members is able to facilitate the UK with an extensive collection of home appliance and kitchen retail brands. Through specially negotiated terms with its preferred suppliers, Sirius members are guaranteed to benefit from improved margins.

SkillsUSA is a partnership of students, teachers, and industry working together to ensure a skilled American workforce. SkillsUSA is working to attract more students into construction, electrical, plumbing, HVAC and appliance repair programs.

Smart Air is a full-service HVAC contractor offering detail-oriented installations and control over multiple facets of the project.

Smart Choice Heating & Cooling, Inc. is a family owned business, dedicated to providing trustworthy and quality HVAC service across Vancouver, WA, Camas, Ridgefield & Brush Prairie.

Smart Solar Energy, which has been conducting R&D studies since 2013 and set out with the principle of providing world-class Smart City Units solutions to all its customers by using the developing technology, Smart Solar Energy has become a leader in Turkey and the world in the last 6 years. It has also become the largest smart city furniture manufacturer in the region.

SO Energy is a London-based supplier of gas and 100% renewable electricity to homes around Great Britain and believes in honesty, transparency, and enabling their customers to make a move towards net zero. It is the only energy supplier that empowers customers by allowing them to vote on how it sources its renewable electricity.

SoCal Airflow Pros is a veteran-owned and operated heating and air conditioning company located in Orange County, California. SoCal Airflow Pros is dedicated to proving that integrity, respect, and professionalism are all a recipe for success within every trade.

South Air Heating & Cooling has been providing high–quality, professional heating and air conditioning service throughout the Cartersville, Marietta and surrounding GA areas since 2003. In that time they have developed a reputation as a trustworthy, dependable local service provider.

Southern Air offers design, installation and service of heating, air conditioning, electrical, plumbing and piping systems for commercial and industrial facilities.

From energy storage to transportation electrification, SCE employees are working on innovative projects that will help cut emissions and greenhouse gases to provide cleaner air for everyone. At SCE, they provide electricity and rebates and incentives for lighting, food service technology, HVAC, air conditioning and related electric appliances and much more.

SoCalGas is the natural gas distribution utility in the United States. They provide natural gas for heating, hot water, cooking, drying clothes or other uses. They also provide solutions such as solar water heating, power generation, energy efficiency, building management, air quality services and much more.

Southern HVAC provides Air Conditioning, Heating, Electrical, and Plumbing repair and maintenance services throughout Florida, Georgia, South Carolina, North Carolina, Texas, Kansas, and Missouri. Its ongoing objective is to continue growing and expanding to new markets. Comprising a set of distinct service brands, Southern HVAC Corp. is a provider of essential maintenance, repair, replacement, and new installation services.

Southern HVAC providing exceptional value, transparent pricing, to fix a problem quickly. It caters to air conditioning, heating, and plumbing service needs.

Southern Trust Home Services is a leading electrical, HVAC, and plumbing company serving southwest Virginia.

SPAN tracks every last electron for maximum efficiency, total visibility, and real savings.

Spencer Heating & Air offers great maintenance plans to ensure the system runs at peak performance all year.

Spirax Sarco is a pioneer in steam system management. The Company provides a broad range of fluid control products, engineered packages, systems expertise, and site services for its diverse range of over 100,000 industrial and institutional customers.

Stack Heating & Cooling provides unparalleled HVAC services for residential and light commercial customers in the Cleveland, Ohio, area.

At Star Air Conditioning & Heating, their comfort pros are committed to providing the neighbors in Orlando, Kissimmee and surrounding cities with the highest quality HVAC services. With air conditioning, ductwork, furnaces, ductless systems, heat pumps, indoor air quality, and more, they will keep the user and their family comfortable all year long.

Sterling HVAC, the most recognized name in the game, has been producing high efficiency heating products for over 50 years. From traditional Unit Heaters to Rooftop and Indoor Make-Up Air units, Sterling HVAC has the solution to fit every residential, commercial or industrial application.

Stone Claims Group is a team of public insurance adjusters, specializing in complex commercial claims. They have years of industry expertise and the results that they have accomplished so far prove their depth of experience. They are data-hungry and stay ahead by making use of the best tools available.

Stop's Heating & Cooling is a Wisconsin heating, AC, and water heater repair, service, replacement, and maintenance company. It employs only the best HVAC technicians for furnace, AC, water heater, boiler, ductless heating, and heat pump repair or replacement.

Stop's Heating & Cooling is a Wisconsin heating, AC, and water heater repair, service, replacement and maintenance company located in Land O Lakes. Stop's Heating & Cooling employs only the best HVAC technicians for the furnace, AC, water heater, boiler, ductless heating, and heat pump repair or replacement.

Strobic Air Technologies provides safe, practical, cost-effective, and energy-efficient solutions for critical air exhaust applications. Their systems offer reliability as well as long service life.