| Artists Repertory Theatre | Artists Repertory Theatre | 2019 | 1 | |
| Associazione TeRRRe | Associazione TeRRRe | 2019 | 3 | 3 |
| Akroama | Akroama | 2019 – 2023 | 27 | 3 |
| Ambasciata Norvegese in Italia | Ambasciata Norvegese in Italia | 2020 | 1 | |
| Associazione Culturale Nati Domani | Associazione Culturale Nati Domani | 2021 – 2024 | 3 | 1 |
| Antiklimax | Antiklimax | 2022 | 1 | |
| Attic Collective, The | The Attic Collective | 2023 | 1 | |
| Associazione Culturale Fuoridaltunnel | Associazione Culturale Fuoridaltunnel | 2023 | 2 | 1 |
| Antaeus Theatre Company | Antaeus Theatre Company | 2024 | 1 | |
| Accademia Nazionale D'Arte Drammatica | Accademia Nazionale D'Arte Drammatica | 2024 | 2 | 1 |
| Arts and Entertainment Atlanta | Arts and Entertainment Atlanta | 2024 | 1 | |
| Amanti del Teatro Neretino | Amanti del Teatro Neretino | 2024 | 1 | |
| Albion College Theatre | Albion College Theatre | 2025 | 1 | |
| Almasi Collaborative Arts | Almasi Collaborative Arts | 2025 | 1 | |
| Akademiske Kvarter, Det | Det Akademiske Kvarter | 2025 | 1 | |
| Axis Producoes | Axis Producoes (Axis Productions) | 2025 | 2 | |
| ArtsEd | ArtsEd | 2025 | 1 | |
| Artists Collaborative Theatre | Artists Collaborative Theatre | 2025 | 1 | |
| Athinaiki Skini | Athinaiki Skini (Athenian Stage) | 2025 | 1 | |
| Arts Club Theatre Company | Arts Club Theatre Company | 2025 | 1 | |
| Alan Kadıköy | Alan Kadıköy | 2025 | 1 | |
| Apollinaire Theatre Company | Apollinaire Theatre Company | 2025 | 1 | |
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