| Associated Designers of Canada (ADC): A national arts service organization and professional association promoting and protecting the interests of set, costume, lighting and sound designers working in the performing arts in Canada. |
| Association of Canadian Liberettists Composers and Lyricists: Fosters the creation and production of musical theatre by Canadians. Lists upcoming meetings and productions. |
| Canadian Improv Games: A non-profit organization dedicated to providing quality improvisational theatre training to teams of high school students across Canada. |
| Playwright Guild Of Canada: Service organization for Canadian playwrights. Site includes searchable online catalogue, with a history of the Guild and membership information. |
| Professional Association of Canadian Theatres: National trade and service association representing professional English-language theatre in Canada. |
| SaBooge Theatre Company: A group of young actors, musicians and playwrights creating innovative physical theatre, and who also teach at summer arts camps in eastern Canada and USA. Includes information about upcoming performances, the cast, and press clippings. |
| Siminovitch Prize in Theatre: An annual theatre arts award which honours a professional director, playwright or designer who advances Canadian theatre through a body of work achieved in recent years, while influencing and inspiring younger theatre artists. Profiles recipients and founders and the selection process. |
| The Fabulous Marks Brothers: One of the most popular touring companies between 1870 and 1920, the Marks Brothers performed to over 8 million people in 27 years on the stage. Includes the history of the Marks Brothers and their wives, newspaper clippings, stories about their adventures and photos. |
| Theatre Canada: Online directory for live Canadian theatres and planning guide for the theatre visitor. Over 335 live Canadian theatres. News/Reviews, E Cards, free contests, study resources, shopping, and chat rooms. |