Sears Heating & Cooling was founded by Johnny and Lillian Sears in 1950. They believed that Columbus needed a reliable heating and cooling company to keep families warm during the harsh winters and cool during the hot summers.

Selco Products Co. is a renowned manufacturer of disc thermostats, bulb and capillary thermostats, NTC thermistors, and electronic temperature controls. They also provide custom manufactured assemblies, such as brackets, epoxy over molding, specialty connectors and more.

Sensata Technologies is a pioneer suppliers of sensing, electrical protection, control and power management solutions. Sensata's products improve safety, efficiency and comfort for millions of people every day in automotive, heating, air-conditioning and ventilation, data, telecommunications, recreational vehicle and marine applications.

Sensor Electronics Corp. is a renowned provider of digital gas detection systems that monitor combustible gas, toxic gas, and oxygen deficiency. They also manufacture toxic and explosive gas detectors, along with gas analyzers with over 75+ gas sensors.

SenTech Corp. is a renowned provider of single and multi-point refrigerant monitors for early warning of refrigerant leaks for CFC's, HCFC's, and HFC's without false alarms or the need for periodic calibration.

Seresco Technologies Inc. is a renowned US-based manufacturer of highest quality, technologically advanced and energy efficient dehumidifiers.

Service Experts is a big company with home-town heart. They’re passionate about making the world a cozy place to live. Whether they’re warming, cooling, or making the water run, they take great pride in keeping the customers and communities comfortable and satisfied.

The Shafer Services Plus family (Shafer) has been a pioneer in building and servicing San Antonio’s public and private heating, cooling and plumbing infrastructure for more than a century.

Shafer's HVAC, Inc. is a family-owned and operated business started by Mike Shafer in 1973. They serve thousands of families and businesses in the region, including Allegheny, Armstrong, Butler, Indiana, and Westmoreland counties with promptness, integrity, and reliability.

Shamrock HVAC Services Top-Notch AC Installation Services in Maryland. They specialize in all phases of the Residential and Commercial HVAC industry plus complete maintenance, Repair & installation services. They also offer expert heating services in Dayton, MD, and AC repair services in Dayton system installation and service for residential and commercial customers in the Dayton area.

Sherwood Products, Inc. is the manufacturer of the Stat-Gard, a locking thermostat cover in three different sizes. The guard is made of polycarbonate, a space age high impact plastic, the same material NFL football helmets are made of. In addition, the unit is tamper resistant and self-locking.

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, 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.

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.

Silver State Refrigeration, HVAC, & Plumbing offers a large range of services, including commercial refrigeration, commercial & residential HVAC, and plumbing. No matter which service users need, they'll be working with technicians who are extensively trained and highly knowledgeable.

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.

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

SLB is a technology company that unlocks access to energy for the benefit of all. As innovators, that’s been their mission for nearly a century. Today, they face a global imperative to create a future with more energy, but less carbon.

Smart Electric has been focused on HVACR components for over a decade. They provide HVAC systems' components, smart electric motors, capacitors and transformers for air conditioning, refrigeration equipment, valves, filters, heating and other appliances.

Smart Service is a US-based provider of HVAC software solutions for a wide range of applications. Smart Service adds scheduling, dispatching, and more to QuickBooks, helping companies streamline their operations and eliminate waste.

SMC Technologies is a provider of environmentally safe chemicals and water treatment. They deal with water treatment chemicals for boilers, cooling towers, closed systems, waste water treatment, metal finishing, specialty cleaners, and chemical feed equipment/filters; solvent replacement chemicals.

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.

SoftDEL is a technology company which provides engineering services for building automation, industrial automation, HVAC, smart lighting, oil and energy, and automotive domains.

Solatube International, Inc. has revolutionized the way daylight is brought into a building. Known as a tubular daylighting device (TDD), their products are a compact and leak-proof alternative to traditional skylights, virtually eliminating glare and minimizing solar heat gain. Solatube tubular daylighting systems are modular and can be installed in hard-to-reach spaces and rooms, skirting obstacles where skylights can’t reach.

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

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.

Spinco Metal Products, Inc. headquartered in Newark, is a pioneer in custom tubular components, machined parts, and subassemblies. They manufacture many types of fittings including brass, copper, aluminum, steel and stainless.

Spirax Sarco is the provider of 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.