Dennis Corporation employs professionals whose specific fields of expertise include aviation engineering, civil infrastructure, construction management, construction services, environmental services, expert witness, geotechnical engineering, intelligent transportation systems, program management, special projects, surveying, traffic engineering, transportation engineering and water resources. Dennis Corporation operates as a South Carolina Corporation Chapter C. Dennis Corporation is headquartered in Columbia, SC, with branch offices in Chester, Mt. Pleasant and Ridgeland South Carolina and Hurricane, West Virginia.