Founded in 1958, John S. Clark Company is one of the oldest and largest building contractors in North Carolina. It specializes in providing a variety of design and build services. John S. Clark Company s serves industrial, retail, commercial and institutional clients. The firm also specializes in handling building improvement projects. It is a member of the U.S. Green Building Council. Design, a subsidiary of the firm, provides architectural design services in Virginia, Georgia, South Carolina and North Carolina. Headquartered in Mount Airy, N.C., John S. Clark Company is a part of Obayashi USA. The firm s clients include Wal-Mart and Inter IKEA Systems B.V. John S. Clark Company maintains a location in Winston-Salem, N.C.