Description Jacobs, Charleston, SC Facility (JFSNA), offers Engineering, Detailed Engineering, Support Services, Modular Fabrication of Industrial Facilities as well as client specific services. We specialize in: Refining, Gas/Process, Chemical, Petrochemical, Polymers, Pharmaceutical, Power/Nuclear, Consumer Foods, Minerals and Semi-Conductor Modular Facilities. With 94 acres, 12,000,000 sq ft. of fabrication/assembly area, located on the water, we are capable to handle projects of just about any size.