About

RETTEW, ranked 12th in 2011 on the list of Best Places to Work in PA, provides engineering, transportation, environmental consulting, planning, surveying and related consulting services to a broad range of clients. Beginning in 1969 as a single-person office, today RETTEW has more than 400 employees. Offices are located in Athens, Lancaster, Lehigh Valley, Mechanicsburg, Pittsburgh, Schuylkill Haven and Williamsport, Pa; Canton, Ohio; and Liberty and Margaretville, N.Y.