NES Company Inc. manufacturers and distributes an extensive selection of pumping equipment for the industrial, commercial, and heating markets. We specialize in NASH liquid ring vacuum pumps. Our product lines include a l......NES Company Inc. manufacturers and distributes an extensive selection of pumping equipment for the industrial, commercial, and heating markets. We specialize in NASH liquid ring vacuum pumps. Our product lines include a large selection of small close-coupled vacuum pumps up to 350 CFM, replacement NASH pumps up to 4,000 CFM, engineered systems, as well as one of the largest selection of remanufactured NASH pumps.