237110Water and Sewer Line and Related Structures Construction (SPECIFICALLY: CONSTRUCTION MANAGEMENT AND INSPECTION)237310Highway, Street, and Bridge Construction (SPECIFICALLY: CONSTRUCTION MANAGEMENT AND INSPECTION)237990Other Heavy and Civil Engineering Construction (SPECIFICALLY: CONSTRUCTION MANAGEMENT AND INSPECTIONOF TRANSPORTATION INFRASTRUCTURE PROJECTS)541310Architectural Services
541330Engineering services (ENGINEERING AND ARCHITECTURAL/ENGINEERING SERVICES. DESIGN, DRAWINGS, SPECIFICATIONS AND COST ESTIMATES FOR CIVIL AND STRUCTURAL WORK. PREPARATION OF ENVIRONMENTAL IMPACT STATEMENTS AND ASSESSMENTS.)
423510Metal Service Centers and Other Metal Merchant Wholesalers (METALS SERVICE CENTERS AND OFFICES PIPE AND TUBING, STEEL, PIPE, CAST IRON, PLATES, METAL: WHOLESALE)
423610Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers (ELECTRICAL APPARATUS AND EQUIPMENT, WIRING SUPPLIES, AND CONSTRUCTION MATERIALS WHOLESALE OF BATTERIES, EXCEPT AUTOMOTIVE, CABLE CONDUIT, CAPACITORS, EXCEPT ELECTRONIC , CIRCUIT BREAKERS, COAXIAL CABLE, CONDUITS AND RACEWAYS, FLASHLIGHTS, FUSES AND ACCESSORIES, ELECTRICAL GENERATORS, LAMP BULBS, LIGHTING FIXTURES: RESIDENTIAL, COMMERCIAL, AND INDUSTRIAL, MOTOR CONTROLS, MOTORS, AND RECEPTACLES, RELAYS, SAFETY SWITCHES, STORAGE BATTERIES, WIRE ROPE OR CABLE AND WIRE)
423690Other Electronic Parts and Equipment Merchant Wholesalers (ELECTRONIC PARTS AND EQUIPMENT, NOT ELSEWHERE CLASSIFIED CAPACITORS, ELECTRONIC - WHOLESALE)
423710Hardware Merchant Wholesalers (HARDWARE WHOLESALE OF BUTS, NUTS, RIVETS AND SCREWS, BUILDERS' HARDWARE, FASTENERS, HANDTOOLS-EXCEPT AUTOMOTIVE AND MACHINIST PRECISION, LOCKS AND RELATED MATERIALS, POWER HANDTOOLS, SAW BLADES, STAPLES, TACKS, AND WASHERS)
423720Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (PLUMBING AND HEATING EQUIPMENT AND SUPPLIES-HYDRONICS WHOLESALE OF BOILERS, POWER: INDUSTRIAL, BOILERS, PLUMBERS' BRASS GOODS, FITTINGS AND VALVES, PLUMBING FIXTURES, EQUIPMENT, AND SUPPLIES, RADIATORS AND PARTS, HEATING-NONELECTRIC, STEAM FITTINGS, VALVES, PLUMBING AND HEATING)
423730Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers (WARM AIR HEATING AND AIR-CONDITIONING EQUIPMENT AND SUPPLIES WHOLESALE OF AIR POLLUTION CONTROL EQUIPMENT AND SUPPLIES, COMPRESSORS, AIR-CONDITIONING, DUST COLLECTION EQUIPMENT) (List truncated due to too many codes)
