Optimize the spray process and save resources with BETE spray technology. BETE is a pioneer in all areas of spray nozzle engineering, manufacturing, and applications. Since 1950, BETE has put nozzles into deep sea, deep space, and everywhere in between. Their spray technology innovations improve sustainable operations in a broad range of industries – including Food & Beverage Processing, Chemical Processing, Energy, and Pollution Control.

Duct & Vent Cleaning of America, Inc. was founded in April of 1989 by Ron Eckman. As early as February of 1990, Duct & Vent Cleaning of America, Inc. joined NADCA, the HVAC Inspection, Maintenance and Restoration Association. In fact, they were the first company to be allowed membership that used portable hepa vacuums in the cleaning process.

MKS Instruments, Inc is a pioneer in technology solutions for the markets they serve. They make the instruments, subsystems and process control solutions that enable their customers to measure, control, power, monitor and analyze the critical parameters of the advanced processes that they manage.

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.

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

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.