Established in 1976, Alt & Witzig Engineering is one of the leading engineering firms in the Midwest. It is comprised of a team of professionals who provide a range of environmental consulting, geotechnical engineering and construction testing and inspection solutions. Alt & Witzig Engineering s construction inspection and materials testing solutions include laboratory, masonry, and concrete, foundation and soil inspection services. Its laboratories are accredited by the American Association of State Highway and Transportation Officials (AASHTO) and the Ohio and Indiana Departments of Transportation. The company also offers a range of drilling services. With nearly 10 offices throughout Indiana, Ohio and Kentucky, Alt & Witzig Engineering maintains a location in West Chester, Ohio.