These are the schools and organizations that are registered by season/year.
| School | City, State |
|---|---|
| 4H | General, OR |
| Ashland High School | Ashland, OR |
| Cascade Junior High School | Turner, OR |
| Cascades Academy of Central Oregon | Bend, OR |
| Cedar Park Middle School | Portland, OR |
| Century High School | Hillsboro, OR |
| Crescent Valley High School | Corvallis, OR |
| Edmonds Heights K-12 | Edmonds, WA |
| Franklin High School | Portland, OR |
| Hillsboro High School | Hillsboro, OR |
| Independent | Various, OR |
| Jesuit High School | Beaverton, OR |
| Lincoln High School | Portland, OR |
| North Salem High School | Salem, OR |
| Redmond Proficiency Academy | Redmond, OR |
| Roosevelt High School | Portland, OR |
| Saint Pius X School | Portland, OR |
| Sunset High School | Beaverton, OR |
| Tigard High School | Tigard, OR |
| Tillamook High School | Tillamook, OR |
| Tualatin High School | Tualatin, OR |
| West Salem High School | Salem, OR |
| Willamette High School | Eugene, OR |
| Wilson High School | Portland, OR |