| Naics index | Naics index description |
|---|---|
| 237990 | Ski tow construction |
| 237990 | Spillway, floodwater, construction |
| 237990 | Sports field construction |
| 237990 | Streetcar line construction |
| 237990 | Subway construction |
| 237990 | Tennis courts, outdoor, construction |
| 237990 | Timber removal, underwater |
| 237990 | Trail construction |
| 237990 | Trenching, underwater |
| 237990 | Tunnel construction |