Sid Harvey's is a multi-disciplinary distributor company with a network of 76 branches. They handle multiple renowned brands. This company remanufactures HVAC products as well.

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.

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.

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.

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.

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.

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.

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.

Skuttle Indoor Air Quality Products specialize in Indoor Air Quality, humidifiers, make-up air controls, air cleaners, air cleaner replacement media.

Slakey Brothers, established in 1939, is a wholesale distributor of Heating, Ventilation & Air Conditioning (HVAC) and Plumbing dedicated to providing the best service and value to customers in Northern & Central California, Western Nevada and Southern Oregon.

Smai Service is at the forefront of innovation and efficiency, and guarantees customers a range of HVAC equipment choices in the plumbing and heating sector, for over 20 years.

SMART (Sheet Metal, Air, Rail and Transportation) provides skilled and certified sheet metal workers trained at 160 training centers through the U.S. for commercial and residential HVAC work. They ensure the quality of the air people breathe, promote energy efficiency, produce and provide vital services.

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

Smart Air offers HVAC maintenance, repair, and installation for homes and businesses. They also provide emergency Heating & AC repair, 24/7!

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 Separations has created a new generation of antiviral coatings and ceramic membranes. ViraTeq™ technology destroys SARS-CoV-2 on surfaces preventing the spread of COVID-19 and a customizable ceramic membrane technology that challenges what’s possible with microfiltration. They provide Microfiltration, Research & Development, Indoor Air Purification, Water Purification, and Industrial Applications.

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.

SMARTEMP products are designed by SMARTAIR DIFFUSION in Australia. Many are patented, and include solutions delivering high capacity and enhanced heating. Engineering and technical services include selection programs, technical brochures, laboratory testing and direct client advice in relation to specialised air diffusion performance, indoor air quality, diffuser layout, and associated acoustics and system design.

The Smarter Technologies Group of Companies has brought together market leading expertise in hardware, software and communications. The Group’s Intelligence-led systems and platforms digitally transform our clients’ organisations enabling tracking, monitoring and control of assets across the globe in real time on our proprietary “IoT” data network, Orion.

SMS Environmental provides water hygiene services to enable clients to meet their statutory obligations with regard to Legionella control. SMS also provides products and services that have synergy with the core business, such as other water treatment services, other water sampling, air sampling, air conditioning, ventilation hygiene, and other building services.

SMS Indoor Environmental Cleaning Inc provides high-quality mold and indoor environmental services. With over 30 years of experience in the field, the company's professionals will do all it takes to make any property safe and hygienic.

Snowdonia is a name users can trust. With over a quarter of a century of quality service to thousands of satisfied clients, Snowdonia HVAC has brought outstanding projects to life through their fully licensed and certified in-house design and construction teams.

Snyder has served Jacksonville and surrounding communities since 1973. Its team strives to keep the clients comfortable at home by offering air conditioning, heating, plumbing, and electrical services.

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.