| Naics index | Naics index description |
|---|---|
| 813910 | Business associations |
| 813910 | Chambers of commerce |
| 813910 | Construction associations |
| 813910 | Contractors' associations |
| 813910 | Distributors' associations |
| 813910 | Farmers' associations |
| 813910 | Farmers' unions |
| 813910 | Growers' associations |
| 813910 | Hospital associations |
| 813910 | Industrial associations |