| Naics index | Naics index description |
|---|---|
| 336510 | Rapid transit cars and equipment manufacturing |
| 336510 | Streetcars and car equipment, urban transit, manufacturing |
| 336510 | Subway cars manufacturing |
| 336611 | Barge building |
| 336611 | Cargo ship building |
| 336611 | Container ship building |
| 336611 | Dredge building |
| 336611 | Drilling and production platforms, floating, oil and gas, building |
| 336611 | Drydock, floating, building |
| 336611 | Ferryboat building |