Impact Theatre Co-operative, a theatre company based in Leeds, West Yorkshire, England between 1979 and 1986;
Broadway theatre | West End theatre | musical theatre | Royal National Theatre | theatre | Royal Court Theatre | American Ballet Theatre | Musical theatre | National Theatre | Theatre Royal, Drury Lane | Bolshoi Theatre | Abbey Theatre | Haymarket Theatre | Theatre Royal | Play (theatre) | Globe Theatre | Theatre | Mariinsky Theatre | Manhattan Theatre Club | Lyric Theatre | Théâtre du Châtelet | Her Majesty's Theatre | Grand Théâtre de Genève | Théâtre des Champs-Élysées | Theatre 625 | Montreal Impact | Goodman Theatre | Sydney Theatre Company | Lyceum Theatre, London | Gaiety Theatre, London |