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Superior Boiler is an American boiler manufacturer with roots dating back to 1917, when Hugh C. Gass founded Superior Welding Shop in Hutchinson, Kansas. During World War II, the company trained approximately 200 welders for the war effort. Strategic acquisitions expanded the portfolio: Triad Boiler in 2014 (vertical firetube) and English Boiler in 2016 (watertube). By 2021, the company had grown to 300,000 sq. ft. of manufacturing space. In 2023, Superior shipped its 20,000th National Board-registered boiler. Recently acquired by Watts Water Technologies. Known as 'Superior Problem Solvers' with boiler capacities ranging from 7 to 14,507 HP.

Thermal Fluid Heaters

Indian manufacturer of steam boilers, thermic fluid heaters, hot water generators for plywood, rice mills, dairy, pharmaceuticals, textiles.

U.S. Boiler Company manufactures the broadest line of condensing boilers in the industry, with the highest average efficiency exceeding 85%. Nearly 300 employees at Lancaster, PA facilities. Cast iron from Casting Solutions (Zanesville, OH).

Victory Energy is an American industrial boiler manufacturer founded in 1999 by John Viskup, who continues to serve as President and CEO. The company operates from their headquarters in Collinsville, Oklahoma with an additional manufacturing facility in Cushing, Oklahoma, employing approximately 205 people across 210,000 square feet. Victory Energy has distinguished itself through vertical integration, designing and manufacturing both steam generation and combustion systems in-house ensuring single-source responsibility. The company maintains a strong commitment to sustainability and carbon reduction. Jointly owned by founder John Viskup and Main Street Capital Corporation.

Global leader in industrial measurement technology manufacturing pressure gauges, temperature instruments, level and flow sensors. Family-owned, 11,200 employees, €1.3B turnover.

Manufacturer of level, pressure, flow sensors, miniature solenoid valves. Warrick Controls specializes in conductivity-based liquid level controls for boilers.

Water-Tube Boilers

New Zealand thermal energy company providing industrial burners, steam and hot water boilers, biomass solutions. Specializes in sustainable energy conversions.

Global leader in combustion and environmental solutions including ultra-low-NOx burners, flare systems, thermal oxidizers, vapor control. World's largest combustion R&D facility.