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.

Particles Plus offers a line of patented advanced-technology particle counters, air quality monitors, and environmental sensors. As the most vertically integrated particle counter manufacturer and technology licensing company in the industry, Particles Plus engineers and manufactures its own counter, display, battery, vacuum pump, and sensor technology from the ground up.

Pascal is a technology company commercializing solid refrigerant heat pumps and air conditioners. Pascal’s solid refrigerants undergo solid-solid phase transitions in response to pressure and can operate within the same pressure and temperature ranges as standard gas refrigerants. Pascal’s technology eliminates the direct emission of refrigerants to the atmosphere and offers a pathway to more efficient, more sustainable, and cheaper heating.

At Performance Heat and Air, they care about their customers and their comfort. Both of the owners have more than 35 years of experience in the HVAC industry, and their air conditioning company is built on strong family values and a second-to-none work ethic.

PureAC is the first automated disinfecting device for window & wall-mounted air conditioning and heating systems that instantly kills and inhibits mold, mildew, bacteria, and germs. It's the perfect solution for in-between professional servicing.

Rawal Devices Inc. is the manufacturer of highly efficient and cost-effective solutions that solve temperature and humidity control problems in industrial, institutional, and commercial building applications.

REFCO Manufacturing Ltd. manufactures HVAC/R service products and mini split condensate pumps.

Robinson Supply Co. is a distributor of heating and cooling equipment, duct, registers and grills, tools and test equipment, air quality products in the HVAC industry.

RST Thermal is a Manufacturer's Representative, serving New England, for multiple manufacturers whose products offer a systems approach to comfortable heating and cooling. They provide technical and sales support to their wholesale distributor partners and contractors. For homeowners, they provide geographic lists of installing and servicing contractors to help them find the "best fit" for the project to be done.

S & A is the premier supplier of building and remodeling products including plumbing, heating, air conditioning, water systems, water treatment, electrical, and underground products in Berkshire County, Massachusetts.

Mfrs. reps. covering six New England states and calling on hydronic, HVAC, burner supply and plumbing/heating wholesale distributors for residential and commercial applications.

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.

Sensitech is focused on delivering supply chain visibility solutions that track, monitor and protect products for global leaders in the food, life sciences, consumer goods, and industrial markets. Their solutions are focused in three key areas: quality and compliance, supply chain security, and logistics performance management.

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.

At SpacePak, they rely on decades of industry know-how and every-day expertise to provide customers with a best-in-class central heating and cooling system that increases comfort, saves space, and preserves the aesthetics and architectural integrity of their homes, with minimal renovation.

Sterling HVAC, the most recognized name in the game, has been producing high efficiency heating products for over 50 years. From traditional Unit Heaters to Rooftop and Indoor Make-Up Air units, Sterling HVAC has the solution to fit every residential, commercial or industrial application.

Tetra empowers homeowners to switch from fossil fuel heating and cooling systems to high-efficiency systems, like heat pumps, with a high-touch customer experience and a customer satisfaction guarantee. By helping homeowners through the complexities of federal and state energy efficiency incentive programs and offering affordable pricing on brand-name HVAC systems, Tetra saves homeowners money and removes all the stress of installing new energy.

The Gould Company is a renowned US-based provider of services, sales and training for HVACR distributors, dealers and engineers throughout the US States of New England and New York, including complete warehouse capabilities with one-day service to Northeast and mid-Atlantic regions of the US.

The S. G. Torrice Company is a full-service HVAC distributor of heating and cooling equipment, parts and accessories in the New England region. They are the exclusive distributor in the Northeast of both the Trane and American Standard equipment lines.

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.

Tunstall Corporation has provided customers with cost-effective energy products and solutions for over 50 years now. Their product line includes steam traps, control valves, self contained controls, and steam trap capsules for all steam traps.

ULVAC makes the HELiOT line of portable leak detectors, automatic leak test systems, helium charging and recovery systems and industrial vacuum pumping stations for manufacturing.

W H Riley & Son provides their customers with all their heating and cooling needs. They provide installation & service for heating & cooling systems-boilers, furnaces, central & split system air conditioners, water heaters, generators, pool heaters and much more.

Watts Water Technologies is a pioneer provider of quality water solutions for residential, industrial, municipal, and commercial settings. Their family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions focused on: Plumbing & Flow Control, Water Quality & Conditioning, Water Reuse & Drainage, HVAC and much more.

Wintac is a US-based renowned Business Management Software (BMS) solutions firm for field service and HVAC contracting companies. Wintac plumbing software provides valued real time information in order to control and increase efficiencies of technicians.

WorkHero is the AI-powered back office for small HVAC contractors, combining industry experts with custom AI agents to handle invoicing, permits, rebates, equipment warranties, pricebook creation, and much more.

Wrightsoft Corp. offer easy to use, drag-and-drop HVAC design and sales software that combines both residential and commercial loads, CAD-quality ducts, proposals and in-home sales tools.

The Wyss Institute at Harvard University uses biological design principles to develop new engineering innovations that will transform medicine and create a more sustainable world. By emulating biological principles of self assembly, organization and regulation, they are developing disruptive technology solutions for healthcare, energy, architecture, robotics, and manufacturing, which are translated into commercial products and therapies.

Zinc-rich coatings for galvanizing repair and restoration.