NAICS CODES

336611   Shipbuilding & Repairing 

488390   Other Support Activities for Water Transportation 

811310   Industrial Machinery and Equipment Repair and Maintenance 

238210   Marine & Industrial Electrical Workers

238220   Plumbing, Heating, and Air-Conditioning

238190   Other Foundation, Structure, and Building Exterior Contractors 

332312   Fabricated Structural Metal Manufacturing

332322   Sheet Metal Work Manufacturing

332999   All other Misc. Fabricated Metal Product Manufacturing

332710   Machine Shop, Custom Modifications and Fabricating 

541380   Testing Laboratories (Hydro Static Testing Services, Valves and Pumps)

541990   Other Professional, Scientific & Tech Services 

423830   Industrial Machinery & Equipment Merchant Wholesaler 

423840   Industrial Supplies Merchant Wholesalers (Pipe Fittings, Valves, & FRP)