| Landestheater Meiningen | Landestheater Meiningen | 1923 | 1 | |
| LaFil Orchestra | LaFil Orchestra | 2023 | 1 | |
| La Compagnia Dell'Eclissi | La Compagnia Dell'Eclissi | 2013 | 1 | 1 |
| L’Altro Teatro | L’Altro Teatro | 2017 | 1 | 1 |
| L'Orchestra e il Coro del Teatro La Fenice | L'Orchestra e il Coro del Teatro La Fenice | 1980 | 1 | |
| Liepājas Latviešu teātris | Liepājas Latviešu teātris | 1913 | 1 | |
| Lindland natur og natur | Lindland natur og natur | 2009 | 1 | |
| LIFT | LIFT | 1995 | 1 | |
| Lincoln Center Theater | Lincoln Center Theater | 2025 | 1 | |
| Little Theatre of New Haven, The | The Little Theatre of New Haven | 1931 | 1 | |
| Lindesnes fyr | Lindesnes fyr | 2011 | 1 | |
| Live Theatre Workshop | Live Theatre Workshop | 2025 | 1 | |
| Lynchburg College Theatre | Lynchburg College Theatre | 2005 | 1 | |
| Lillehammer Amatørteater | Lillehammer Amatørteater | 2006 | 1 | |
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