These are the schools and organizations that are registered by season/year.
| School | City, State |
|---|---|
| Cascade Heights Charter School | Clackamas, OR |
| Clover STEMs Science Club, Deschutes Co 4-H | Bend, OR |
| Crescent Valley High School | Corvallis, OR |
| Evergreen Middle School | Hillsboro, OR |
| Franklin High School | Portland, OR |
| Franklin Middle School | Corvallis, OR |
| Glencoe High School | Hillsboro, OR |
| International School of Beaverton | Beaverton, OR |
| Life Christian Middle School | Aloha, OR |
| Pacific Middle School | Vancouver, WA |
| Sunset High School | Beaverton, OR |
| Tualatin High School | Tualatin, OR |
| Wilson High School | Portland, OR |