| Goëss Film | Budapest | — | 1 |
| Graphinica | Shinjuku | April 22, 2009 | 1 |
| Gravity Entertainment | — | 1997 | 1 |
| Greca Films | — | 1918 | 1 |
| Grizouille Production | Paris | August 4, 2010 | 1 |
| Grote Broer Filmwerken | — | — | 1 |
| Grupo Telefe | Buenos Aires | October 20, 1989 | 1 |
| Gruppe 5 Filmproduktion | Cologne | 1990 | 1 |
| Guacamole Films | — | 2002 | 1 |
| Guazzoni Film | — | — | 1 |
| Guild Home Video | — | 1979 | 1 |
| H.m.p. | Tokyo | 1981 | 1 |
| Hakuhodo DY Media Partners | Tokyo | December 2003 | 1 |
| Hakuhodo DY Music & Pictures | Tokyo | October 2015 | 1 |
| Halas and Batchelor | — | 1940 | 1 |
| Hallmark Pictures Corporation | — | 1919 | 1 |
| Halo Studios | Redmond | 2009 | 1 |
| Hanoi Radio – Television Station | — | 1954 | 1 |
| Hanwha Group | Seoul | October 1952 | 1 |
| Happinet Phantom Studios | Taitō-ku | January 20, 2021 | 1 |
| Happy Life | Sweden | 1997 | 1 |
| Harbour Pictures | — | 1999 | 1 |
| Harlin & Selin Productions | — | 1990 | 1 |
| Harmonica Films | Stockholm | February 18, 2008 | 1 |
| Hasbro Entertainment | Burbank | August 16, 2023 | 1 |
| HazazaH | Amsterdam | — | 1 |
| HB Wink Animation | — | — | 1 |
| Hearst Communications | Hearst Tower | July 13, 1920 | 1 |
| Hedgebrook | Ashland | 2004 | 1 |
| Helea Sound Post Production | Helsinki | January 5, 2006 | 1 |
| Hello Sunshine | — | 2016 | 1 |
| Hemera Films | Paris | — | 1 |
| Hermitage Bridge Studio | Saint Petersburg | — | 1 |
| Heron Communications | — | 1984 | 1 |
| Heymann Brothers Films | — | — | 1 |
| Highball TV | — | — | 1 |
| HighZium Studio | — | — | 1 |
| HIM International Music | Taipei | 1999 | 1 |
| Hispano Foxfilms S.A.E. | — | — | 1 |
| History Dreams | London | — | 1 |
| Hittites | — | 1700 BC | 1 |
| HMV Retail Ltd. | London | 1921 | 1 |
| Hollywood Gang Productions | — | — | 1 |
| Homage Comics | — | 1996 | 1 |
| Hong Ying Animation | Suzhou | 1986 | 1 |
| Hot Toys | Hong Kong | 2000 | 1 |
| House of Donati | — | — | 1 |
| Hoyts Edgley | — | — | 1 |