| Naics index | Naics index description |
|---|---|
| 238110 | Grouting (i.e., reinforcing with concrete) |
| 238110 | Gunite contractors |
| 238110 | Gunning shotcrete |
| 238110 | Mud-jacking contractors |
| 238110 | Retaining wall (except anchored earth), poured concrete, construction |
| 238110 | Shotcrete contractors |
| 238120 | Balcony, precast concrete, installation |
| 238120 | Concrete product (e.g., structural precast, structural prestressed) installation |
| 238120 | Concrete reinforcement placement |
| 238120 | Curtain wall, precast concrete, installation |