Founded in 1937, W.O. Blackstone & Company provides installation services for heating ventilation and air conditioning systems, as well as offers commercial and industrial plumbing systems. The company is a customized sheet metal fabrication specialist with capabilities to handle exceptional materials, techniques and designs. W.O. Blackstone & Company operates a service department that provides maintenance services for industrial boiler and heating and cooling systems. It has a staff of more than 125 employees who handle various fabrication assignments. The company works with various construction companies to design and build schools, hospitals, and commercial and industrial facilities. It handles a variety of projects for biomass energy and distribution facilities and educational buildings.