Warner Bros. is a world-wide film and television company based California, owned by AT&T's WarnerMedia.
- New Line Cinema, film studio of The Lord of the Rings (film series)
- Warner Bros. Interactive Entertainment, publisher of every Middle-earth videogame since 2010.
- Turbine, developers and publishers of The Lord of the Rings Online.
- Snowblind Studios, developer of The Lord of the Rings: War in the North.
- Monolith Productions, developer of Guardians of Middle-earth, Middle-earth: Shadow of Mordor and Middle-earth: Shadow of War.