| | | 33311 | Agricultural Implement
Manufacturing | 5 | | Agricultural Implement
Manufacturing 33311 | Agriculture,
Construction, and Mining
Machinery Manufacturing 3331 | Machinery Manufacturing 333 | Manufacturing 33 |
| | | 3331 | Agriculture,
Construction, and Mining
Machinery Manufacturing | 4 | | | Agriculture,
Construction, and Mining
Machinery Manufacturing 3331 | Machinery Manufacturing 333 | Manufacturing 33 |
| | | 11 | Agriculture, Forestry,
Fishing and Hunting | 2 | | | | | Agriculture, Forestry,
Fishing and Hunting 11 |
| | | 333912 | Air and Gas Compressor
Manufacturing | 6 | Air and Gas Compressor
Manufacturing 333912 | Pump and Compressor
Manufacturing 33391 | Other General Purpose
Machinery Manufacturing 3339 | Machinery Manufacturing 333 | Manufacturing 33 |
| | | 488111 | Air Traffic Control | 6 | Air Traffic Control 488111 | Airport Operations 48811 | Support Activities for
Air Transportation 4881 | Support Activities for
Transportation 488 | |
| | | 481 | Air Transportation | 3 | | | | Air Transportation 481 | |
| | | 333415 | Air-Conditioning and Warm
Air Heating Equipment and
Commercial and Industrial
Refrigeration Equipment
Manufacturing | 6 | Air-Conditioning and Warm
Air Heating Equipment and
Commercial and Industrial
Refrigeration Equipment
Manufacturing 333415 | Ventilation, Heating,
Air-Conditioning, and
Commercial Refrigeration
Equipment Manufacturing 33341 | Ventilation, Heating,
Air-Conditioning, and
Commercial Refrigeration
Equipment Manufacturing 3334 | Machinery Manufacturing 333 | Manufacturing 33 |
| | | 336412 | Aircraft Engine and
Engine Parts
Manufacturing | 6 | Aircraft Engine and
Engine Parts
Manufacturing 336412 | Aerospace Product and
Parts Manufacturing 33641 | Aerospace Product and
Parts Manufacturing 3364 | Transportation Equipment
Manufacturing 336 | Manufacturing 33 |
| | | 336411 | Aircraft Manufacturing | 6 | Aircraft Manufacturing 336411 | Aerospace Product and
Parts Manufacturing 33641 | Aerospace Product and
Parts Manufacturing 3364 | Transportation Equipment
Manufacturing 336 | Manufacturing 33 |
| | | 48811 | Airport Operations | 5 | | Airport Operations 48811 | Support Activities for
Air Transportation 4881 | Support Activities for
Transportation 488 | |