| Naics index | Naics index description |
|---|---|
| 237990 | Wharf construction |
| 238110 | Chimney, concrete, construction |
| 238110 | Concrete finishing |
| 238110 | Concrete floor surfacing |
| 238110 | Concrete pouring |
| 238110 | Concrete pumping (i.e., placement) |
| 238110 | Concrete repair |
| 238110 | Concrete resurfacing |
| 238110 | Footing and foundation concrete contractors |
| 238110 | Foundation, building, poured concrete, contractors |