- 2b theatre company
- Alberta Theatre Projects
- Arts Club Theatre Company – BMO Theatre Centre
- Axis Theatre Company
- Bard on the Beach Shakespeare Festival
- Belfry Theatre
- Black Theatre Workshop
- Blyth Festival
- Boca del Lupo Theatre Society
- Buddies in Bad Times Theatre
- Cahoots Theatre Company
- Canadian Stage
- Carousel Players
- Carousel Theatre for Young People
- Catalyst Theatre
- Centaur Theatre Company
- Charlottetown Festival
- Citadel Theatre
- Common Boots Theatre
- A Company of Fools
- Concrete Theatre
- Crow’s Theatre
- Dancing Sky Theatre
- Drayton Entertainment
- Eastern Front Theatre Company
- Factory Theatre
- Firehall Arts Centre
- The Foster Festival
- Gateway Theatre
- Geordie Productions
- Globe Theatre
- The Grand Theatre
- Great Canadian Theatre Company
- Green Thumb Theatre
- Ground Zero Productions
- Imago Theatre
- Kaleidoscope Theatre Productions Society
- Lighthouse Festival Theatre
- Lunchbox Theatre
- Magnus Theatre
- Manitoba Theatre for Young People
- Mermaid Theatre of Nova Scotia
- Mirvish Productions*
- Mulgrave Road Theatre
- National Arts Centre (NAC), English Theatre
- Necessary Angel
- Neptune Theatre Foundation
- Neworld Theatre
- Nightswimming
- Nightwood Theatre
- Northern Light Theatre
- Obsidian Theatre Company
- Old Trout Puppet Workshop Society
- Persephone Theatre
- Pi Theatre
- Playwrights Theatre Centre
- Playwrights’ Workshop Montreal
- Pleiades Theatre
- Port Hope Festival (Cameco Capitol Arts Centre)
- Prairie Theatre Exchange
- Presentation House Theatre
- Quest Theatre Society
- Rainbow Stage
- RCA Theatre Company
- Repercussion Theatre
- Royal Manitoba Theatre Centre
- Segal Centre for Performing Arts
- Shadow Theatre
- Shakespeare in the Ruins
- Shakespeare on the Saskatchewan Festival
- Shaw Festival
- Ship’s Company Theatre
- Soulpepper Theatre Company
- Stratford Festival
- Sudbury Theatre Centre
- Tapestry Opera
- Tarragon Theatre
- Teesri Duniya Theatre
- Theatre 20
- Theatre Aquarius Inc.
- Theatre Calgary
- Theatre Centre
- Theatre Direct Canada
- Theatre Network Society
- Theatre New Brunswick
- Theatre Newfoundland Labrador
- Theatre North West Society
- Theatre Orangeville
- Theatre Passe Muraille
- Theatre Projects Manitoba
- Theatre Smith-Gilmour
- TheatreOne
- Thousand Islands Playhouse
- Touchstone Theatre
- Two Planks and a Passion Theatre
- Upper Canada Playhouse
- Urban Ink Productions
- Vertigo Theatre
- Victoria Playhouse Petrolia
- Watermark Theatre
- Western Canada Theatre
- Winnipeg Jewish Theatre
- Workshop West Playwrights’ Theatre
- Young People’s Theatre
- Youtheatre
*Commercial Member.
All others listed are
Regular Members.
- Alberta Workers’ Health Centre
- Artistic Fraud of Newfoundland
- Caravan Farm Theatre
- Chemainus Theatre Festival
- Driftwood Theatre
- Ghost River Theatre
- Green Fools Theatre Society
- Green Light Arts
- Halifax Theatre for Young People
- Hudson Village Theatre
- Inside Out Theatre
- Multicultural Theatre Space, The (The MT Space)
- Nakai Theatre
- National Arts Centre (NAC), Indigenous Theatre
- New Vintage Theatre Company
- New West Theatre
- Odyssey Theatre
- One Yellow Rabbit Performance Theatre
- The Other Guys Theatre Company
- Pacific Theatre
- Pat the Dog Playwright Centre
- Playwrights Atlantic Resource Centre (PARC)
- Port Stanley Festival Theatre
- PUENTE Theatre Society
- Qaggiavuut Society
- Realwheels Society
- Rising Tide Theatre
- Rosebud Theatre
- Roseneath Theatre
- Ruby Slippers Theatre
- Rumble Theatre
- Saskatchewan Playwrights Centre
- Savage Society
- Solo Collective Theatre
- St. Lawrence Shakespeare Festival
- Stephenville Theatre Festival
- Story Theatre
- Tableau D’Hôte Theatre
- Talk Is Free Theatre
- Theatre Collingwood
- Theatre SKAM
- Theatre Yes
- Theatrefront
- Tottering Biped Theatre
- Volcano
- Why Not Theatre
- Workman Arts
- Zuppa Theatre Co.
