| Naics index | Naics index description |
|---|---|
| 561320 | Personnel (e.g., industrial, office, health care, legal, construction) suppliers |
| 561320 | Temporary employment services |
| 561320 | Temporary help services |
| 561320 | Temporary staffing services |
| 561330 | Co-employment staffing services |
| 561330 | Employee leasing services |
| 561330 | Labor leasing services |
| 561330 | PEO (professional employer organizations) |
| 561330 | Professional employer organizations (PEO) |
| 561330 | Staff leasing services |