- 0181 - Ornamental Nursery Products (3 Companies)
- 0191 - General Farms, Primarily Crop (10 Companies)
- 0241 - Dairy Farms (1 Company)
- 0254 - Poultry Hatcheries (1 Company)
- 0272 - Horse And Other Equines (1 Company)
- 0291 - General Farms, Primarily Animals (13 Companies)
- 0711 - Soil Preparation Services (2 Companies)
- 0721 - Crop Planting And Protection (3 Companies)
- 0741 - Veterinary Services For Livestock (25 Companies)
- 0742 - Veterinary Services, Specialties (34 Companies)
- 0752 - Animal Specialty Services (27 Companies)
- 0762 - Farm Management Services (2 Companies)
- 0781 - Landscape Counseling And Planning (28 Companies)
- 0782 - Lawn And Garden Services (23 Companies)
- 0783 - Ornamental Shrub And Tree Services (9 Companies)
- 0971 - Hunting, Trapping And Game Propagation (1 Company)
- 1081 - Metal Mining Services (1 Company)
- 1241 - Coal Mining Services (1 Company)
- 1311 - Crude Petroleum And Natural Gas (14 Companies)
- 1321 - Natural Gas Liquids (2 Companies)
- 1381 - Drilling Oil And Gas Wells (7 Companies)
- 1382 - Oil And Gas Exploration Services (19 Companies)
- 1389 - Oil And Gas Field Services (93 Companies)
- 1500 - General Contractors (3 Companies)
- 1521 - Single Family Housing Construction (153 Companies)
- 1522 - Residential Construction (26 Companies)
- 1541 - Industrial Buildings And Warehouses (5 Companies)
- 1542 - Nonresidential Construction (67 Companies)
- 1611 - Highway And Street Construction (18 Companies)
- 1623 - Water, Sewer And Utility Lines (9 Companies)
- 1629 - Heavy Construction (3 Companies)
- 1711 - Plumbing, Heating, Air Conditioning (110 Companies)
- 1721 - Painting And Paper Hanging (26 Companies)
- 1731 - Electrical Work (38 Companies)
- 1741 - Masonry And Other Stonework (11 Companies)
- 1742 - Plastering, Drywall And Insulation (18 Companies)
- 1743 - Terrazzo, Tile, Marble And Mosaic Work (7 Companies)
- 1751 - Carpentry Work (19 Companies)
- 1752 - Floor Laying & Floor Work (8 Companies)
- 1761 - Roofing, Siding & Sheetmetal Work (48 Companies)
- 1771 - Concrete Work (19 Companies)
- 1781 - Water Well Drilling (18 Companies)
- 1791 - Structural Steel Erection (5 Companies)
- 1794 - Excavation Work (11 Companies)
- 1795 - Wrecking & Demolition Work (10 Companies)
- 1799 - Special Trade Contractors (75 Companies)
- 2011 - Meat Packing Plants (4 Companies)
- 2024 - Ice Cream & Frozen Desserts (4 Companies)
- 2051 - Bread, Cake & Related Products (2 Companies)
- 2077 - Animal & Marine Fats & Oils (2 Companies)
