- 0191 - General Farms, Primarily Crop (6 Companies)
- 0741 - Veterinary Services For Livestock (17 Companies)
- 0742 - Veterinary Services, Specialties (17 Companies)
- 0752 - Animal Specialty Services (31 Companies)
- 0781 - Landscape Counseling And Planning (33 Companies)
- 0782 - Lawn And Garden Services (38 Companies)
- 0783 - Ornamental Shrub And Tree Services (7 Companies)
- 0851 - Forestry Services (1 Company)
- 1081 - Metal Mining Services (3 Companies)
- 1241 - Coal Mining Services (6 Companies)
- 1311 - Crude Petroleum And Natural Gas (6 Companies)
- 1321 - Natural Gas Liquids (10 Companies)
- 1381 - Drilling Oil And Gas Wells (19 Companies)
- 1382 - Oil And Gas Exploration Services (18 Companies)
- 1389 - Oil And Gas Field Services (47 Companies)
- 1500 - General Contractors (4 Companies)
- 1521 - Single Family Housing Construction (162 Companies)
- 1522 - Residential Construction (44 Companies)
- 1541 - Industrial Buildings And Warehouses (14 Companies)
- 1542 - Nonresidential Construction (49 Companies)
- 1611 - Highway And Street Construction (10 Companies)
- 1623 - Water, Sewer And Utility Lines (22 Companies)
- 1629 - Heavy Construction (4 Companies)
- 1711 - Plumbing, Heating, Air Conditioning (56 Companies)
- 1721 - Painting And Paper Hanging (22 Companies)
- 1731 - Electrical Work (26 Companies)
- 1741 - Masonry And Other Stonework (10 Companies)
- 1742 - Plastering, Drywall And Insulation (3 Companies)
- 1743 - Terrazzo, Tile, Marble And Mosaic Work (4 Companies)
- 1751 - Carpentry Work (13 Companies)
- 1752 - Floor Laying & Floor Work (9 Companies)
- 1761 - Roofing, Siding & Sheetmetal Work (24 Companies)
- 1771 - Concrete Work (31 Companies)
- 1781 - Water Well Drilling (7 Companies)
- 1791 - Structural Steel Erection (5 Companies)
- 1794 - Excavation Work (8 Companies)
- 1795 - Wrecking & Demolition Work (7 Companies)
- 1799 - Special Trade Contractors (42 Companies)
- 2052 - Cookies & Crackers (1 Company)
- 2064 - Candy & Other Confectionery Products (1 Company)
- 2082 - Malt Beverages (1 Company)
- 2121 - Cigars (2 Companies)
- 2211 - Broadwoven Fabric Mills, Cotton (1 Company)
- 2395 - Pleating & Stitching (2 Companies)
- 2421 - Sawmills & Planing Mills, General (1 Company)
- 2431 - Millwork (2 Companies)
- 2434 - Wood Kitchen Cabinets (3 Companies)
- 2452 - Prefabricated Wood Buildings (2 Companies)
- 2499 - Wood Products (2 Companies)
- 2515 - Mattress & Bedsprings (2 Companies)
- 2521 - Wood Office Furniture (2 Companies)
- 2621 - Paper Mills (1 Company)
- 2656 - Sanitary Food Containers, Manufacturing (1 Company)
- 2675 - Die Cut Paper & Board (2 Companies)
- 2679 - Converted Paper & Paperboard Prods, Nec (1 Company)
- 2711 - Newspapers (2 Companies)
- 2721 - Periodicals, Manufacturing (4 Companies)
- 2741 - Miscellaneous Publishing (1 Company)
- 2752 - Commercial Printing, Lithographic (2 Companies)
- 2759 - Commercial Printing (12 Companies)
- 2796 - Platemaking Services (1 Company)
- 2813 - Industrial Gases (1 Company)
- 2819 - Industrial Inorganic Chemicals (3 Companies)
- 2833 - Medicinal Chemicals & Botanical (2 Companies)
- 2834 - Pharmaceutical Preparations (1 Company)
- 2842 - Polishes And Sanitation Goods (1 Company)
- 2869 - Industrial Organic Chemicals (2 Companies)
- 2892 - Explosives, Manufacturing (1 Company)
- 2893 - Printing Ink (1 Company)
- 2899 - Chemicals Preparations, Nec (2 Companies)
- 2911 - Petroleum Refining (2 Companies)
- 2951 - Asphalt Paving Mixtures & Blocks (1 Company)
- 3053 - Gaskets, Packing & Sealing Devices (1 Company)
- 3083 - Laminated Plastic Plate, Sheet & Shapes (1 Company)
- 3089 - Plastics Products (4 Companies)
- 3161 - Luggage (1 Company)
- 3255 - Clay Refractories (2 Companies)
- 3272 - Concrete Products (1 Company)
- 3312 - Blast Furnaces And Steel Mills (1 Company)
- 3315 - Steel Wiredrawing, Nails & Spikes (1 Company)
- 3316 - Cold Finishing Of Steel Shapes (1 Company)
- 3324 - Steel Investment Foundries (1 Company)
- 3334 - Primary Aluminum (1 Company)
- 3339 - Metal Mills, Primary Nonferrous, Nec (1 Company)
- 3356 - Nonferrous Rolling And Drawing, Nec (2 Companies)
- 3357 - Nonferrous Wiredrawing And Insulating (1 Company)
- 3423 - Hand & Edge Tools (1 Company)
- 3433 - Heating Equipment, Except Electric (2 Companies)
- 3441 - Fabricated Structural Metal (1 Company)
- 3444 - Sheet Metalwork (5 Companies)
- 3469 - Metal Stampings (1 Company)
- 3479 - Metal Coating & Allied Services (5 Companies)
- 3491 - Industrial Valves (1 Company)
- 3494 - Valve & Pipe Fittings, Nec (1 Company)
- 3499 - Fabricated Metal Products (2 Companies)
- 3569 - General Industrial Machinery (1 Company)
- 3578 - Calculating And Accounting Equipment (1 Company)
- 3585 - Refrigeration And Heating Equipment (1 Company)
- 3592 - Carburetors, Pistons, Rings And Valves (2 Companies)
- 3625 - Relays And Industrial Controls (1 Company)
