| Army and Navy Academy
| Carlsbad | CA | 7th-12th | 7th-12th | Boys only | 339 | None |
| Avon Old Farms School
| Avon | CT | 9th-12th | 9th-12th | Boys only | 405 | None |
| Belmont Hill School
5/5
based on 1 student review(s) | Belmont | MA | 7th-12th | 9th-12th | Boys only | 420 | None |
| Camden Military Academy
| Camden | SC | none | 7th-PG | Boys only | 292 | None |
| Carson Long Military Academy
| New Bloomfield | PA | none | 6th-12th | Boys only | 180 | None |
| Christ School
| Arden | NC | 8th-12th | 8th-12th | Boys only | 248 | Episcopal |
| Fishburne Military School
| Waynesboro | VA | 8th-12th | 8th-12th | Boys only | 200 | None |
| Fork Union Military Academy
| Fork Union | VA | 6th-PG | 6th-PG | Boys only | 475 | Baptist |
| Georgetown Preparatory School
4.8/5
based on 1 student review(s) | North Bethesda | MD | 9th-12th | 9th-12th | Boys only | 480 | Roman Catholic (Jesuit) |
| Hargrave Military Academy
| Chatham | VA | 7th-PG | 7th-PG | Boys only | 400 | None |
| Kiski School
| Saltburg | PA | 9th-PG | 9th-PG | Boys only | 215 | None |
| Marine Military Academy
| Harlingen | TX | none | 8th-PG | Boys only | 328 | None |
| McCallie School
| Chattanooga | TN | 6th-12th | 9th-12th | Boys only | 890 | None |
| Missouri Military Academy
| Mexico | MO | none | 6th-PG | Boys only | 255 | None |
| Mount Michael Benedictine School
| Elkhorn | NE | 9th-12th | 9th-12th | Boys only | 169 | Roman Catholic |
| Riverside Military Academy
| Gainsville | GA | 7th-12th | 7th-12th | Boys only | 400 | None |
| Salisbury School
| Salisbury | CT | 9th-PG | 9th-PG | Boys only | 295 | Episcopal |
| School at Church Farm
| Exton | PA | 7th-12th | 7th-12th | Boys only | 200 | Episcopal |
| St. Albans School
4.6/5
based on 1 student review(s) | Washington | DC | 4th-12th | 9th-12th | Boys only | 575 | Episcopal |
| St. John's Military School
| Salina | KS | none | 7th-12th | Boys only | 220 | None |
| St. John's Northwest Military Academy
| Delafield | WI | 7th-12th | 7th-12th | Boys only | 341 | None |
| St. Mary's Preparatory School
| Orchard Lake | MI | 9th-12th | 9th-12th | Boys only | 540 | Roman Catholic |
| Trinity-Pawling School
| Pawling | NY | 7th-PG | 9th-PG | Boys only | 320 | Episcopal |
| Valley Forge Military Academy and College
4.2/5
based on 1 student review(s) | Wayne | PA | 7th-12th | 7th-PG | Boys only | 524 | None |