General Building & Specialty Contractors (BC) Masonry Contractor (C-31) Sewer, Sewage Disposal, Drain, & Pipe Laying Contractor (C-43) Sheetmetal Contractor (C-44) Ventilating & Air Conditioning Contractor (C-52) Subcontractors Fire Protection Contractor (C-20)
Air Conditioning, Sheet Metal, Plumbing, Commerical Kitchen Fabrication, WasteWater Treatment, Process Piping