These are the schools and organizations that are registered by season/year.
| School | City, State |
|---|---|
| Clover STEMs Science Club, Deschutes Co 4-H | Bend, OR |
| Crescent Valley High School | Corvallis, OR |
| Evergreen Middle School | Hillsboro, OR |
| Fowler Middle School | Tigard, OR |
| Independent | Various, OR |
| International School of Beaverton | Beaverton, OR |
| Jesuit High School | Beaverton, OR |
| Life Christian Middle School | Aloha, OR |
| Philomath High School | Philomath, OR |
| Riley Creek Middle School | Gold Beach, OR |
| South Eugene High School | Eugene, OR |
| Tigard High School | Tigard, OR |
| Union High School | Brush Prairie, WA |
| Wilson High School | Portland, OR |