Wayne E. Swisher Cement Contractor is a family-owned company that has been providing professional concrete contracting services since 1970. It works with contractors and commercial owners throughout Northern California and undertakes residential, industrial and public works projects. The company has more than 150 employees and is headquartered in Antioch, Calif. Wayne E. Swisher Cement Contractor is a member of the American Subcontractors Association of California and the Engineering & Utility Contractors Association. Its commercial portfolio includes Slatten Ranch Shopping Center, Lone Tree Plaza, Home Depot and Brentwood Junction. The company s industrial clients include Overaa Construction, Plas-tal Manufacturing Company and USS Posco Industries.