Since its founding in 1971, DiversiTech Corporation has grown from an equipment-pad maker into a large HVAC/R manufacturing company serving wholesalers, contractors and technicians. Known for its equipment pads, the company now operates more than 1 million square feet of manufacturing and distribution space across North America and Europe, while supporting customers through a broad single-source supply model.
UL2998 zero-ozone validation
Compliance program
DMI Companies, IncFounded in 1978 as Ductmate Industries, DMI Companies, Inc. is a manufacturer of HVAC products and building automation systems serving contractors and builders worldwide. Its four manufacturing divisions produce union-made products, and the company is known for engineered duct systems and components. DMI operates manufacturing facilities in several states and also offers Airoverse building automation for commercial buildings.CHARLEROI, PA
1HVACFounded in Ohio in 1938 as an HVAC manufacturer’s representative, 1HVAC now supplies residential and commercial systems while manufacturing sheet-metal air-distribution products. Its unusual combination of representation and in-house production gives contractors a single source for equipment, ductwork, fans, and related boiler components. The company serves the Dayton-area market and sells across Ohio, while also operating affiliated HVAC businesses in other regions.TROY, OH
Mestek MachineryWith more than 80 years serving HVAC fabricators, Mestek Machinery is a Cedar Rapids manufacturer known for building metal-forming equipment for sheet-metal ductwork. Its four established brands combine more than a century of experience, while the company supports duct shops with a nationwide service network and authorized dealers across the United States and Canada.CLEVELAND, OH
1987 MachineryFounded by longtime friends Mike Hardesty and Andrew Hess, 1987 Machinery grew from their industry experience into a machinery partner for HVAC duct and sheet-metal fabrication shops. The Maryland company is known for pairing equipment expertise with personal support, including service that helps customers keep existing machinery productive.