| Naics index | Naics index description |
|---|---|
| 561311 | Teacher registries |
| 561311 | Television employment agencies |
| 561311 | Theatrical employment agencies |
| 561312 | Executive placement consulting services |
| 561312 | Executive placement services |
| 561312 | Executive search consulting services |
| 561312 | Executive search services |
| 561312 | Senior executive search services |
| 561320 | Construction labor supply services |
| 561320 | Contract staffing services |