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. A leader in promoting quality and excellence in the sheet metal and air conditioning industry, SMACNA has offices in Chantilly, VA., which is outside of Washington, D.C., and on Capitol Hill.

Residential furnace repair, installation and replacement HVAC services. Light commercial sheet metal, gasfitting and HVAC services.

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.

Envicool is a China-based foremost provider of equipment cooling solutions for telecom sites and data centers, energy storage, Telecom 5G base station cabinet, healthy environment, Industry Automation, EV Bus & Rail Transit, EV Cold Chain Logistics, EV car charger, Electronics, etc.

Shook Mfg. Products Inc. specializes in fasteners and tools for over fifty years now. They provide products with high-quality design, performance and usability. Their range of products include tools & hardware for the HVAC/R, roofing, and many other home improvement industries.

Shop Data Systems (SDS) has been servicing the metal fabrication industry since 1975. Throughout our decades in the industry, have continually introduced new products and services designed to help business owners across the country and around the world.

Shop Data Systems, Inc. CAD/CAM advanced industrial nesting software has been servicing the metal fabrication industry since 1975. They offer a myriad of CAD/CAM industrial nesting software modules that service general fabrication, product manufacturing, HVAC duct-work fabrication, blowpipe contractors and structural steel plate processors.

Shortridge Instruments Inc. is a renowned US-based manufacturer of AirData Multimeters, FlowHoods, HydroData Multimeters, Air Balance Instruments and Water Balance Meters.

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.

Sicat srl produces and installs ducts in galvanized sheet, stainless steel, aluminum and PAL with rectangular and circular section, for the conveyance of air.

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.

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 USA Inc. is a renowned manufacturer of flow switches and flow meters. The company emphasizes on reliability and innovative design in small, low cost instruments for chillers and heat pumps. They also provide flow measurement instruments, electronic measuring and mechanical measuring instruments.

Sila provides solutions like air conditioning, heating, plumbing, etc, and is based out of USA.

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.

Silent-Aire is a technology driven company that designs, engineers, and manufactures hyperscale cooling and modular data center solutions. Their portfolio of solutions includes modular data centers; power room modules, turnkey modular deployments, custom HVAC (CRACs, CRAHUs, AHUs), and mission critical services.

Since 1989 SIM ENGINEERING SRL has been dedicated to the creation of air conditioners to "improve the climate" of the control systems of production processes.

SIMO motor, founded in 1955, is a comprehensive industrial company integrating the R&D, design, production, sales and maintenance of motor products. Company is set with R&D, production, purchasing, sales, international, warehouse, after sales departments, and etc. All departments are led by professionals with years of experience in the motor industry. All teams work closely to adapt and meet the needs of the market and customers.

Simon-Aire Inc. manufactures new construction and replacement package terminal air conditioning chassis that are specifically designed to meet and exceed the demands of new construction developers, facility management, hotels, hospitals, nursing homes, dormitories and residential buildings.

Simon's Supply is one of the area's oldest and most established plumbing and heating supply sources. They are distributors of plumbing, heating, and cooling supplies from the top name brands in the industry, all at competitive prices.

At Sims Refrigeration they supply, install, service, and maintain commercial refrigeration & air conditioning equipment across all industries and services.

Sinclair Supply Ltd. is the specialty products supplier to the HVACR industries that provide essential services for comfortable living environments in homes, offices, schools, hospitals and industrial facilities in Western Canada.

Sinergia mainly turns to Oil & Gas, Petrochemical, Energy, Chemical, Steel industries by providing engineering and manufacturing of packaged instrument air systems and gas generator plants.

SINKO, a pioneer in air-conditioning technology, develops air-conditioning systems that are friendly to the environment. SINKO has become one of the industry’s top manufacturers of air conditioning systems. With a history spanning over half a century, SINKO has grown in step with the Japanese economy, gaining experience and adding to its achievements.

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.

Sital Klima Industries Srl provides solutions like Air Handling, Cooling Towers, Air Dehumidifiers, Ventilation, etc and is based out of Italy.

Skil – aire, division of Tithe Corp is a wholly-owned subsidiary of Baltimore, Maryland based Tithe Corporation, an environmental control and air conditioning products and services company that delivers integrated product technologies for cooling and enthalpy control solutions.

Skills Training Group is a provider of heating, electrical & utilities training courses. They focus on delivering high quality, employer-led training that sets their students up for entering the heating and utilities workforce in Scotland and the surrounding area.

S.K.M Air Conditioning LLC is a premier name in the air conditioning industry. They provide Chillers, Air Handling Units, Packaged Units, Split AC Units, Fan Coil Units, Condensing Units, Ducted Mini Splits, Ducted Split Units, Air Cooled Condensers, Swim Pool Dehumidificater, and VRF Systems.