| S- | SA | SC | SE | SH | SI | SK | SL | SM | SN | SO | SP | SQ | ST | SU | SW | SY |
| Index entry | NAICS Code | U.S. NAICS Title |
|---|---|---|
| Squares, carpenters', metal, manufacturing | 332212 | Hand and Edge Tool Manufacturing |
| Squash club facilities | 713940 | Fitness and Recreational Sports Centers |
| Squash equipment (except apparel) manufacturing | 339920 | Sporting and Athletic Goods Manufacturing |
| Squash farming, field, bedding plant and seed production | 111219 | Other Vegetable (except Potato) and Melon Farming |
| Squid fishing | 114112 | Shellfish Fishing |
| S- | SA | SC | SE | SH | SI | SK | SL | SM | SN | SO | SP | SQ | ST | SU | SW | SY |