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Lewis S. Goodfriend & Associates

4 World Trade Center; Ste. 2963 150 Greenwich Street New York, NY 10007 United States

Contact: Jack Zybura, P.E., INCE Bd. Cert.

Telephone: 212-337-0577


Principal NCAC Members:
Jack Zybura, P.E., INCE Bd. Cert.

Lewis S. Goodfriend & Associates is a diversified acoustical engineering consulting firm offering professional services in architectural acoustics; sound and impact isolation; environmental, industrial, and transportation noise; HVAC noise and vibration; and expert witness testimony. The firm is registered as a Small Business Enterprise with the New Jersey Commerce & Economic Growth Commission. LSG&A has been providing acoustical engineering services since 1953. Clients include educational facilities, major corporations, industrial organizations, architectural and engineering firms, houses of worship, attorneys, local municipalities, private residents, and commercial enterprises. The firm has a wide breadth of experience, from working with historical buildings undergoing renovations to designing the latest advanced “green” buildings with LEED® certification. Services include development of acoustical design criteria, acoustical measurements, evaluation with respect tocable standards and regulations, and preparation of recommendations for reducing noise and vibration.