| Naics index | Naics index description |
|---|---|
| 562998 | Tank cleaning and disposal services, commercial or industrial |
| 611110 | Academies, elementary or secondary |
| 611110 | Boarding schools, elementary or secondary |
| 611110 | Charter schools |
| 611110 | Elementary and secondary schools |
| 611110 | Elementary schools |
| 611110 | Finishing schools, secondary |
| 611110 | High schools |
| 611110 | High schools offering both academic and technical courses |
| 611110 | High schools offering both academic and vocational courses |