- 3509 Iron Horse Drive Ladson, SC 29456 Phone: (843) 875-3637 Fax: (843) 875-4509 email@cemsengineering.com SERVICES CEMS ENGINEERING Civil - Electrical - Mechanical - Structural - INFORMATION Employment Links Headquartered in the heart of South Carolina's Low Country, CEMS is a multi-discipline, full service engineering firm serving industrial, commercial, institutional and government clients ...www.cemsengineering.com