| Naics index | Naics index description |
|---|---|
| 611620 | Sports instruction, camps or schools |
| 611620 | Sports instructors, independent (i.e., not participating in sporting events) |
| 611620 | Swimming instruction |
| 611620 | Tennis instruction, camps or schools |
| 611630 | Foreign language schools |
| 611630 | Language schools |
| 611630 | Schools, language |
| 611630 | Second language instruction |
| 611630 | Sign language instruction |
| 611630 | Sign language schools |