Founded in 1969 to replace foundry cleanup crews with industrial vacuums, Hi-Vac Corporation now manufactures environmental equipment for infrastructure maintenance, industrial cleanup and non-destructive excavation. The Marietta, Ohio, company brings its original Hi-Vac industrial vacuum line together with sewer-cleaning and hydro-excavation equipment developed through acquisitions of UltraVac, Aquatech and O’Brien Manufacturing. Hi-Vac engineers, builds and quality-tests its equipment at its manufacturing facilities and supports customers with application engineering, training and aftermarket service.