- 113110 – Timber Tract Operations
- 113310 – Logging
- 115310 – Support Activities for Forestry
- 236115 – New Single-Family Housing Construction (except Operative Builders)
- 236116 – New Multifamily Housing Construction (except Operative Builders)
- 236117 – New Housing Operative Builders
- 236118 – Residential Remodelers
- 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
- 237310 – Highway, Street, and Bridge Construction
- 237990 – Other Heavy and Civil Engineering Construction
- 238110 – Poured Concrete Foundation and Structure Contractors
- 238120 – Structural Steel and Precast Concrete Contractors
- 238130 – Framing Contractors
- 238160 – Roofing Contractors
- 238190 – Other Foundation, Structure, and Building Exterior Contractors
- 238210 – Electrical Contractors and Other Wiring Installation Contractors
- 238220 – Plumbing, Heating, and Air-Conditioning Contractors
- 238320 – Painting and Wall Covering Contractors
- 238330 – Flooring Contractors
- 238350 – Finish Carpentry Contractors
- 238910 – Site Preparation Contractors
- 238990 – All Other Specialty Trade Contractors
- 423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
- 423990 – Other Miscellaneous Durable Goods Merchant Wholesalers
- 483111 – Deep Sea Freight Transportation
- 483113 – Coastal and Great Lakes Freight Transportation
- 532490 – Other Commercial and Industrial Machinery and Equipment Rental and Leasing
- 541330 – Engineering Services
- 541620 – Consulting Services
- 561730 – Landscaping Services
- 562211 – Hazardous Waste Treatment and Disposal
- 562910 – Remediation Services
- 562998 – All Other Miscellaneous Waste Management