- 5-Star Theatricals (formerly Cabrillo Music Theatre) (Fred Kavli Theatre)
- Actors' Repertory Theatre of Simi (at Simi Valley Cultural Arts Center)
- Agoura Community Theatre (At Agoura High School)
- Agoura High School
- American Theatre Guild (formerly Theater League) (Fred Kavli Theatre)
- Cal Lutheran University
- Calabasas High School
- Classics in the Park
- Colina Middle School
- Conejo Players Theatre
- Curtain Call Youth Theatre (at Playhouse 101)
- Fred Kavli Theatre
- Gypsy Players
- High Street Arts Center
- Hillcrest Players
- Hillcrest Players Summer Musical Camp
- Kingsmen Shakespeare Company
- La Reina High School
- Los Cerritos Middle School (at Thousand Oaks High School)
- Los Primeros School of Sciences and Arts