The Sustainable Energy Association are a member based industry body offering innovative policy solutions that link up building-level technologies and the wider energy system to achieve a low carbon, secure energy future for the UK, benefits for UK consumers, and commercial growth for businesses working in the sector.

SustainUS is a nonprofit, nonpartisan organization of young people advancing sustainable development and youth empowerment in the United States. Through proactive education and advocacy at the policy-making and grassroots levels, they are building a future in which all people recognize the inherent equality and interdependence of social, economic, and environmental sustainability.

Suzhou Tongda Machinery Co., Ltd. has been focusing on the research, development and product application of extrusion blow molding machines. It is the technical enterprise for the plastic extrusion blow molding machine to integrates R&D, production, and sales.

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.

SVF Flow Controls is a recognized pioneer in flow control technology. Offer a full range of superior-quality engineered valves, actuators and controls for unique applications such as high pressure and high purity. Designed of exotic alloys, SVF Flow Controls serves many industries including; chemical, biotech, semiconductor, pharmaceutical, petro-chem, food and beverage, oil & gas, refining, etc.

At Swaim Electric Heating & Air Conditioning, they specialize in providing quality installation and service of residential heating and cooling, electrical, and whole-home generators.

SWAN Plumbing, Heating & Air of Denver is a family-owned and operated business, and they're passionate about taking care of the needs of homeowners and families in the Denver metro area. Their team of master plumbing, heating and air conditioning technicians are dedicated to providing professional quality plumbing and HVAC services to residents and families throughout the Denver metro area.

Swegon Group is a pioneer in energy-efficient ventilation and indoor climate products and systems. It offers solutions for ventilation, heating, cooling, and climate optimization.

SWEP is the manufacturer of compact brazed plate heat exchangers, evaporators, condensers, sub-coolers, oil coolers, economizers, heat recovery, district heating and cooling.

Swift Air Ventilation Ltd designs and builds complete systems for well known companies throughout Norfolk, and know what it takes to keep them working efficiently. Regular checks and cleaning should be carried out on filters, duct-work and equipment

Swifter Fans, Div. of Glocon Inc.has been designing and manufacturing industrial and commercial axial fans for over 20 years and serves the cooling equipment OEM and facility air movement system markets. With cutting-edge composite fan blade molding technology and capability to produce fans up to 40 feet in diameter, they offer customized fan solutions for virtually any industrial-commercial axial-fan application.

Swiss Air Heating & Cooling, LLC specializes in residential AC service. They're one of the AC contractors in the area that hires the best technicians, equips them with the best tools, and ensures that they get the best training. They also provide heating solutions, indoor air quality systems, commercial HVAC products, water heaters and much more.

Switch2 Energy Limited is the UK’s most experienced and capable provider of end-to-end solutions for heat networks. They make a success of heat networks owned by local authorities, housing associations and private developers. They also help to optimize energy efficiency, manage renewable energy, and focus on well-performing schemes, while minimizing costs to the resident.

SwitchWaterSupplier.com is the first and ONLY Independent-Impartial-Transparent Water Retail Procurement platform that brings commercial customers and water retail companies together, enabling the water retailers to tender for customers'​ water retail contracts on a LIVE tender platform, where both the water retailers and customers will see price changes in real-time.

Sydmech has been servicing, supplying and maintaining air conditioning solutions for corporates, businesses and residents across Sydney. Their extensive list of high-profile projects and clients directly results from referrals because they are not only caring but also go further to ensure the satisfaction they can.

Sylvester & Cockrum offers a wide range of services for the commercial customers. Whether they need commercial plumbing repairs, routine HVAC maintenance, an electrical system review, or an installation of a heating and cooling system, the factory-trained and licensed technicians are available 24/7 to commercial customers throughout North Carolina, South Carolina, Tennessee, Virginia, and Georgia.

Symbio Energy is a full service energy consulting firm serving companies across all industries. Their expertise lies in finding the best energy management solutions in the deregulated energy markets throughout the United States of America (USA).

Symphony has established itself as a pioneer in evaporative air coolers. Symphony Industrial Air Coolers provide cost efficient and environment friendly cooling solutions for industrial and commercial spaces. They are the ideal choice for in the case of large spaces where air conditioners are considered to be too expensive and also in spaces that involve extreme heat.

Synchrony is the US's largest provider of private label credit cards based on purchase volume and receivables and a trusted partner to the country's best consumer brands. With 16,000+ home improvement dealer/distributor relationships, we prove every day that we're the financing partner that builds programs and grows your business.

Synecore was established by Paul Thomas and Adrian Eade to meet what they felt was a market for professional M&E contractors, with in-house expertise in both HVAC and electrical engineering across the UK. Set in the rural Kent countryside purpose-built head office is the hub of nationwide infrastructure. It’s where develop electrical and mechanical plans for some of the UK’s largest roll-out programs for clients such as Leon, Frankie and Benny’s.

Synergy Business Solutions solves financial management and project accounting issues that HVACR companies face through implementing and supporting Microsoft Dynamics SL, software that integrates with the Microsoft software you already use and is specifically designed for project-centric companies.

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

Synexis is a provider in technologies that achieve microbial reduction in treated spaces and is the developer and designer of patented technology that creates hydrogen peroxide gas or Dry Hydrogen Peroxide (DHP) for occupied spaces.

Synova is the pioneer of a unique water jet guided laser technology (Laser MicroJet®) providing high-precision cutting solutions for the metal, semiconductor and diamond industries.

Syska Hennessy Group has a proud portfolio of international projects which include some of the world’s most technically sophisticated buildings.

Systemair is the manufacturer of HVAC products. Their product range includes fans and accessories, residential systems, fire safety products, air handling units, air curtains, radiant heaters, air distribution products, air conditioners and more.

Systems Management & Balancing, Inc. provides independent, objective and professional testing and analysis of heating, ventilating and air conditioning systems. Included in these tests are air and water balance, sound and vibration measurements, building surveys, control verification, fume hood testing, duct leakage testing and system commissioning.

Systems2 is a multi-disciplined consultancy in business and risk management globally. S2 works with many global blue-chip companies as well as small and medium-sized businesses to help them deliver their products and services on time, within budget, and to the highest standards, whilst maintaining the best possible levels of health, safety, and wellbeing.

T&O Refrigeration grew to one of the largest independently owned refrigeration contracting companies in the Southeastern U.S. They provide Walk-in coolers, Refrigeration retrofits, HVAC equipment, Computerized refrigeration, environmental controls, and much more.