O'Neill Engineered Systems, Inc.

O'Neill Engineered Systems, Inc., established in 1988 and based in Hartland, Wisconsin, is a manufacturer of noise control products specializing in custom design and installation of noise control products and systems. They provide on-site acoustic analysis, sound level measuring, and custom engineered noise and vibration controlled solutions for turn-key projects. Products include acoustic doors, sound barrier walls, and noise enclosures. Services include on-site assessments, product design engineering, and acoustic consulting. They handle projects from concept to completion including design, permitting, general construction and specialties such as special ventilation, electrical, and fire protection.