Insituform Technologies Inc

Established in 1962, John D. Stephens Incorporated is one of the leading utility contractors in the Southeast. It is a full-service construction company that services heavy civil pipelines and environmental infrastructures. John D. Stephens Incorporated offers a range of design and build, project management and site development services. The company employs a staff of project managers, engineers, superintendents, foremen and operators. It also owns and operates a fleet of road tractors, low boys and flat bedtrailers. John D. Stephens Incorporated undertakes various airport and highway improvement, large mass rock excavation, pipeline construction and infrastructure development projects. It has completed projects for Jordan Jones & Goulding Incorporated and Precision Planning Incorporated. John D. Stephens Incorporated is located in Lawrenceville, Ga.

Established in 1981, Southeast Culvert Inc. is involved in the manufacture of storm drainage products. It is one of the largest capacity single culvert plants in the United States. In 2004, Southeast Culvert Inc. began manufacturing plastic (HDPE) culvert. The company, a member of The Council for Quality Growth, offers products, such as spiral rib pipes, large diameter pipes, standard corrugation pipes and end treatment pipes. Southeast Culvert Inc. is a metal culvert producer and fabricator and is also a concrete headwall manufacturer in Lawrenceville, Ga.