| Name | Also Known As | City | State | Country | Web Address |
| Calgary Board of Education | CBE | Calgary | Alberta | Canada | |
| Loose Moose Theatre Company | The Moose | Calgary | Alberta | Canada | |
| Rapid Fire Theatre Society | Edmonton Theatresports | Edmonton | Alberta | Canada | |
| Club Improv @ Highwood | Highwood High School - Improv Club | High River | Alberta | Canada | |
| Vancouver Theatresports League | VTSL | Vancouver | British Columbia | Canada | |
| JM Drama Alumni | Comedy for the Community | Kitchener | Ontario | Canada | |
| Cawthra Park Secondary School Improv Club | | Mississauga | Ontario | Canada | |
| Bad Dog Theatre Company | | Toronto | Ontario | Canada | |
| Palm Springs Theatresports | | Cochella Valley | California | USA | |
| EPIC Theatre Company | Redwood High School | Larkspur | California | USA | |
| The Chadwick Improvisors | ChImps | Palos Verdes Peninsula | California | USA | |
| BATS Improv | Bay Area Theatresports | San Francisco | California | USA | |
| Stanford Improvisors | SIMPS | Stanford | California | USA | |
| Ventura Improv Company (VIC) | Ventura Area Theatresports (VATS) | Ventura | California | USA | |
| Denver Theatresports | | Denver | Colorado | USA | |
| Delaware Comedy Theatre | | Rehoboth Beach, Dewey Beach, Lewes and Wilmington | Delaware | USA | |
| Dad's Garage Inc. | | Atlanta | Georgia | USA | |
| Freestyle Repertory Theatre | Theatresports New York | New York | New York | USA | |
| The Mop and Bucket Company | Wide Net Improv Theatre | Schenectady | New York | USA | |
| The Brody Theater | | Portland | Oregon | USA | |
| Robinson Secondary School Drama Boosters | | Robinson | Virginia | USA | |
| The UpFRONT Theatre | Sonny Boy Productions LLC | Bellingham | Washington | USA | |
| Unexpected Productions | Seattle Theatresports | Seattle | Washington | USA | |
| Atlas Improv Co. | | Madison | Wisconsin | USA | |
