- 0139 - Field Crops, Except Cash Grain (1 Company)
- 0181 - Ornamental Nursery Products (1 Company)
- 0191 - General Farms, Primarily Crop (3 Companies)
- 0241 - Dairy Farms (1 Company)
- 0291 - General Farms, Primarily Animals (1 Company)
- 0741 - Veterinary Services For Livestock (9 Companies)
- 0742 - Veterinary Services, Specialties (10 Companies)
- 0752 - Animal Specialty Services (32 Companies)
- 0781 - Landscape Counseling And Planning (12 Companies)
- 0782 - Lawn And Garden Services (20 Companies)
- 0783 - Ornamental Shrub And Tree Services (13 Companies)
- 0921 - Fish Hatcheries And Preserves (5 Companies)
- 0971 - Hunting, Trapping And Game Propagation (3 Companies)
- 1081 - Metal Mining Services (2 Companies)
- 1241 - Coal Mining Services (2 Companies)
- 1311 - Crude Petroleum And Natural Gas (8 Companies)
- 1321 - Natural Gas Liquids (1 Company)
- 1381 - Drilling Oil And Gas Wells (11 Companies)
- 1382 - Oil And Gas Exploration Services (13 Companies)
- 1389 - Oil And Gas Field Services (163 Companies)
- 1422 - Crushed And Broken Limestone (1 Company)
- 1429 - Crushed And Broken Stone (1 Company)
- 1500 - General Contractors (4 Companies)
- 1521 - Single Family Housing Construction (142 Companies)
- 1522 - Residential Construction (23 Companies)
- 1541 - Industrial Buildings And Warehouses (2 Companies)
- 1542 - Nonresidential Construction (41 Companies)
- 1611 - Highway And Street Construction (5 Companies)
- 1623 - Water, Sewer And Utility Lines (9 Companies)
- 1629 - Heavy Construction (22 Companies)
- 1711 - Plumbing, Heating, Air Conditioning (115 Companies)
- 1721 - Painting And Paper Hanging (12 Companies)
- 1731 - Electrical Work (36 Companies)
- 1741 - Masonry And Other Stonework (2 Companies)
- 1742 - Plastering, Drywall And Insulation (12 Companies)
- 1743 - Terrazzo, Tile, Marble And Mosaic Work (3 Companies)
- 1751 - Carpentry Work (15 Companies)
- 1752 - Floor Laying & Floor Work (3 Companies)
- 1761 - Roofing, Siding & Sheetmetal Work (38 Companies)
- 1771 - Concrete Work (18 Companies)
- 1781 - Water Well Drilling (8 Companies)
- 1791 - Structural Steel Erection (2 Companies)
- 1794 - Excavation Work (1 Company)
- 1795 - Wrecking & Demolition Work (6 Companies)
- 1796 - Installing Building Equipment (1 Company)
- 1799 - Special Trade Contractors (88 Companies)
- 2024 - Ice Cream & Frozen Desserts (1 Company)
- 2064 - Candy & Other Confectionery Products (1 Company)
- 2082 - Malt Beverages (2 Companies)
- 2086 - Bottled & Canned Soft Drinks (4 Companies)
