| Naics index | Naics index description |
|---|---|
| 813910 | Service industries associations |
| 813910 | Shipping companies' associations |
| 813910 | Trade associations |
| 813910 | Warehousing associations |
| 813910 | Wholesalers' associations |
| 813920 | Accountants' associations |
| 813920 | Architects' associations |
| 813920 | Bar associations |
| 813920 | Consultants' associations |
| 813920 | Dentists' associations |