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237310 Highway, Street, and Bridge Construction 238110 Poured Concrete Foundation and Structure Contractors 238910 Site Preparation Contractors

236116 New Multifamily Housing Construction (except For-Sale Builders) 236210 Industrial Building Construction 237110 Water and Sewer Line and Related Structures Construction 237310 Highway, Street, and Bridge Construction 237990 Other Heavy and Civil Engineering Construction 238130 Framing Contractors 321992 Prefabricated Wood Building Manufacturing 332311 Prefabricated Metal Building and Component Manufacturing 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers 561320 Temporary Help Services 624221 Temporary Shelters 624230 Emergency and Other Relief Services

213112 Support Activities for Oil and Gas Operations 213113 Support Activities for Coal Mining 237990 Other Heavy and Civil Engineering Construction 238990 All Other Specialty Trade Contractors 541380 Testing Laboratories and Services

236210 Industrial Building Construction 238110 Poured Concrete Foundation and Structure Contractors 238140 Masonry Contractors 238910 Site Preparation Contractors 561790 Other Services to Buildings and Dwellings

332510 Hardware Manufacturing 332710 Machine Shops 332721 Precision Turned Product Manufacturing 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing 332911 Industrial Valve Manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing

236210 Industrial Building Construction 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction 237120 Oil and Gas Pipeline and Related Structures Construction 237130 Power and Communication Line and Related Structures Construction 237310 Highway, Street, and Bridge Construction 237990 Other Heavy and Civil Engineering Construction 238190 Other Foundation, Structure, and Building Exterior Contractors 238910 Site Preparation Contractors 238990 All Other Specialty Trade Contractors 562910 Remediation Services

212319 Other Crushed and Broken Stone Mining and Quarrying 213111 Drilling Oil and Gas Wells 213112 Support Activities for Oil and Gas Operations 237110 Water and Sewer Line and Related Structures Construction 237130 Power and Communication Line and Related Structures Construction 237310 Highway, Street, and Bridge Construction 237990 Other Heavy and Civil Engineering Construction 238110 Poured Concrete Foundation and Structure Contractors 238190 Other Foundation, Structure, and Building Exterior Contractors 238210 Electrical Contractors and Other Wiring Installation Contractors 238910 Site Preparation Contractors 332996 Fabricated Pipe and Pipe Fitting Manufacturing

236210 Industrial Building Construction 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction 237210 Land Subdivision 237310 Highway, Street, and Bridge Construction 237990 Other Heavy and Civil Engineering Construction 238190 Other Foundation, Structure, and Building Exterior Contractors 238910 Site Preparation Contractors 238990 All Other Specialty Trade Contractors 333132 Oil and Gas Field Machinery and Equipment Manufacturing 562910 Remediation Services

331221 Rolled Steel Shape Manufacturing 423510 Metal Service Centers and Other Metal Merchant Wholesalers

238910 Site Preparation Contractors