PJ Dionne Company serves the commercial plumbing and HVAC needs of public and private organizations across the greater Boston area. For a quarter century, the company's plumbers and pipe fitters have installed and maintained mechanical systems in new and historic buildings, working closely with the area’s leading general contractors, engineers, and building owners.

Patterson-Kelley serves the commercial heating industry with the most respected products in the field. They provide Commercial Boilers, Commercial Water Heaters, Fabricated Systems, Commercial Solutions, Heating Solutions, Engineeering Solutions and much more.

Pennco's hydronic heating products, designed for residential and commercial buildings, have earned a reputation for exceptional value, high performance and dependability. Built with high quality components and standards, Pennco gas and oil-fired boilers are manufactured by the company's dedicated workforce in the U.S.A. to ensure that customers get the very best in home heating comfort.

Pickrel Brothers is one of the Midwest's providers of pipe, valves, fittings, plumbing, heating and industrial supplies. They also provide boilers and hydronic equipment, heating and cooling coils, unit heaters, water softners, plumbing fixtures and much more.

Plate heat exchangers, deliver compact brazed plate heat exchangers, double-wall plate heat exchangers, semi-welded plate heat exchangers and automatic self cleaning filters/strainers. Their Bernoulli Filters are self-cleaning even in systems with raw cooling water.

Pres-On is an innovative manufacturer of foam tape, custom adhesive coating gaskets, and cap liners serving a wide-range of major industrial markets.

Discover Pure n Natural Systems, the source for advanced air purifier and water filtration systems. With humidity control products and U.S.-based reliability, they bring healthier environments to homes, offices, and commercial spaces.

Rockwell Automation helps manufacturers to succeed and grow with industrial automation control and information solutions designed to give the customers a competitive advantage.

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.

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

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.

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.

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

The Witmer Company offers superior HVAC and plumbing services. Our services include installation and air conditioner repair, heater repair and plumbing repair in the Berks, Chester and Lancaster, PA areas.

Thermal Care is a renowned manufacturer of fiberglass cooling towers in sizes from 40 to 240 tons, portable and central chillers in air-cooled, water-cooled and remote condenser models.

Transaera is developing a new class of affordable, energy-efficient, environmentally friendly cooling systems. They provide services and products such as air conditioning, water recycling, agriculture, energy efficiency, and climate control systems.

TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, indoor air quality, fluid dynamics and biohazard detection.

Utica Boilers has been a trusted supplier of gas and oil-fired boilers for residential and commercial buildings since 1928. Contractors and homeowners alike choose Utica Boilers as their preferred supplier because of our high efficiencies, easy maintenance and installation features, and limited lifetime warranties.

Water Engineering Inc. offers water treatment services, wastewater consulting and legionella management. The company also has programs for commercial and industrial economic buyers.

Water-Right has been creating innovative, highly effective solutions since 1963. Backed by comprehensive support, their expertly designed extensive water treatment product lines include water softeners, residential water filtration systems, drinking water filtration systems, and more.

WaterSurplus delivers sustainable water treatment solutions across industries and around the world. This includes engineering and design services, custom turn-key equipment solutions, NSF/ANSI 61 certified media filtration systems. WaterSurplus creates and maintains the marketplace for buyers and sellers to create value by redeploying surplus water treatment equipment.

Waxman is a globally renowned company in the design, development, and distribution of innovative surface protection and floor care products, other home improvement and hardware products, including faucets and showers; plumbing products and accessories; and home organization and storage solutions.

Wells HVAC Supply is an importer and distributor of a broad line of heating products used primarily in home improvement.

Worthington Industries are renowned US-based provider of hand torches, fuel, solder, braze and accessories. Non-refillable and refillable portable refrigerant cylinders, recovery and recyclable cylinders, and high pressure industrial gas cylinders.

Xylem (XYL) is a global water technology company committed to developing innovative technology solutions to the world’s water challenges. The company’s products and services move, treat, analyze, monitor and return water to the environment in public utility, industrial, residential and commercial settings. Xylem also provides smart metering, network technologies and advanced infrastructure analytic solutions for water, electric and gas utilities.

Zurn Industries, LLC, a Rexnord company, is a recognized leader in commercial, municipal, healthcare and industrial markets. Zurn offers the largest breadth of engineered water solutions, including a wide spectrum of sustainable plumbing products.

Abionik Group is a worldwide renowned system provider of corporate and municipal system solution around water management, waste air, drinking water, storm water and disaster management.

Products and services offered by Danfoss are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Danfoss specializes in compressors & controls, solar inverters, engineering, technology, frequency converters, industrial automation, innovation, energy efficiency, etc.

Kospel company is a Poland based manufacturer of electric instantaneous water heaters, electric boilers, cylinders, solar products, steam generators and heat pumps.

Likusta Umwelttechnik is a global provider of advanced and integrated systems for air and water purification solutions.