School Directory
| School/Organization | City | State | Country |
|---|---|---|---|
| Spring Valley High School | Columbia | South Carolina | United States |
| Spring-Ford Area High School | Royersford | Pennsylvania | United States |
| Springdale Junior Senior High School | Springdale | Pennsylvania | United States |
| Springfield Catholic High School | Springfield | Missouri | United States |
| St Albert Catholic High School | Council Bluffs | Iowa | United States |
| St Joseph's Preparatory School | Philadelphia | Pennsylvania | United States |
| St Mark's School | Southborough | Massachusetts | United States |
| St. Andrew's School | Barrington | Rhode Island | United States |
| St. Augustine Preparatory Academy | Milwaukee | Wisconsin | United States |
| St. Benedict at Auburndale High School | Cordova | Tennessee | United States |
| St. Bernard-Elmwood Place High School | Cincinnati | Ohio | United States |
| St. Catherine's School | Richmond | Virginia | United States |
| St. Charles Community College | Cottleville | Missouri | United States |
| St. Edward's University | Austin | Texas | United States |
| St. Francis High School | Mountain View | California | United States |
| St. George's School | MIDDLETOWN | Rhode Island | United States |
| St. John's College High School | Washington | District of Columbia | United States |
| St. Joseph's/Candler Hospital Sports Medicine | Savannah | Georgia | United States |
| St. Mary's Ryken High School | Leonardtown | Maryland | United States |
| St. Paul's School | Covington | Louisiana | United States |
| St. Peter High School | St. Peter | Minnesota | United States |
| St. Pius X High School | Kansas City | Missouri | United States |
| St. Thomas Aquinas Academy | Marinette | Wisconsin | United States |
| St.Amant High School | St Amant | Louisiana | United States |
| Stafford Municipal School District | Stafford | Texas | United States |
| Stanton College Preparatory | Jacksonville | Florida | United States |
| STEAM Academy at McCluer South-Berkeley High School | Ferguson | Missouri | United States |
| Steele High School | Cibolo | Texas | United States |
| Stephen F Austin High School | Richmond | Texas | United States |
| Stevens Point Area Senior High | Stevens Point | Wisconsin | United States |
| Stillman Valley High School | Stillman Valley | Illinois | United States |
| Stratford High SChool | Goose Creek | South Carolina | United States |
| Sunrise Mountain High School | Peoria | Arizona | United States |
| Suring High School | Suring | Wisconsin | United States |
| Sussex Technical High School | Georgetown | Delaware | United States |
| Syosset Central School District | Syosset | New York | United States |
| Taft Information Technology High School | Cincinnati | Ohio | United States |
| Tahquitz High School | Hemet | California | United States |
| Taipei American School | Shilin District | Taipei City | Taiwan |
| Team HEAL - Carson High School | Carson | California | United States |
| Teaneck High School | Teaneck | New Jersey | United States |
| Tecumseh Junior High School | Lafeyette | Indiana | United States |
| Telstar Middle/High School | Bethel | Maine | United States |
| Terry Sanford High School | Fayetteville | North Carolina | United States |
| Test ATSU | Mesa | Arizona | United States |
| Thayer Academy | Braintree | Massachusetts | United States |
| The Bear Creek School | Redmond | Washington | United States |
| The Branson School | Ross | California | United States |
| The Calhoun School | New York | New York | United States |
| The Cambridge School of Weston | Weston | Massachusetts | United States |
| The Center Foundation - Summit High School | Bend | Oregon | United States |
| The College of St. Scholastica | Duluth | Minnesota | United States |
| The Delsea Regional School District | Franklinville | New Jersey | United States |
| The Derryfield School | Manchester | New Hampshire | United States |
| The Emery/Weiner School | Houston | Texas | United States |
| The Frederick Gunn School | WASHINGTON | Connecticut | United States |
| The Gymnastics Center | Cincinnati | Ohio | United States |
| The Hill School | Pottstown | Pennsylvania | United States |
| The John Carroll School | Bel Air | Maryland | United States |
| The Kinkaid School | Houston | Texas | United States |
| The Lawrenceville School | Lawrenceville | New Jersey | United States |
| The Nightingale-Bamford School | New York | New York | United States |
| The Overlake School | Redmond | Washington | United States |
| the Providence Country Day School | East Providence | Rhode Island | United States |
| The Sayre School | Lexington | Kentucky | United States |
| The Webb School | Bell Buckle | Tennessee | United States |
| The Wheatley School | Old Westbury | New York | United States |
| The Woodstock Academy | Woodstock | Connecticut | United States |
| Thomas Jefferson High School for Science and Technology | Alexandria | Virginia | United States |
| Thunder Basin High School | Gillette | Wyoming | United States |
| ThunderRidge High School | Highlands Ranch | Colorado | United States |
| Timberline High School / Boise School District | Boise | Idaho | United States |
| Timberview High School | Arlington | Texas | United States |
| Tomahawk High School | Tomahawk | Wisconsin | United States |
| Tomball Memorial High School | Tomball | Texas | United States |
| Tooele High School | Tooele | Utah | United States |
| Toppenish High School | Toppenish | Washington | United States |
| Torrey Pines High School | San Diego | California | United States |
| Towson High School | Towson | Maryland | United States |
| Trevor G Browne High School | Phoenix | Arizona | United States |
| Tri-Central High School | Sharpsville | Indiana | United States |
| Tri-County High School | Plainfield | Wisconsin | United States |
| Trimble Local High School | Glouster | Ohio | United States |
| Trinity Christian School of Fairfax | Fairfax | Virginia | United States |
| Trinity Episcopal School | Richmond | Virginia | United States |
| Trinity High School | Louisville | Kentucky | United States |
| Trinity High School | Manchester | New Hampshire | United States |
| Triton Regional High School | Byfield | Massachusetts | United States |
| Tulsa Public Schools | Tulsa | Oklahoma | United States |
| Turner School District | Kansas City | Kansas | United States |
| Turtle Hook Middle School | Uniondale | New York | United States |
| Tuscarawas Central Catholic High School | New Philadelphia | Ohio | United States |
| Tustin High School | Tustin | California | United States |
| Tuttle High School | Tuttle | Oklahoma | United States |
| Twin Lakes High School | Monticello | Indiana | United States |
| Union Public Schools | Tulsa | Oklahoma | United States |
| Unionville High School | Kennett Square | Pennsylvania | United States |
| Unioto High School | Chillicothe | Ohio | United States |
| University City High School | University City | Missouri | United States |
| University High School | Spokane Valley | Washington | United States |