| Wadia Movietone | — | 1933 | 2 |
| Walden Media | Los Angeles | 2000 | 36 |
| Wallimage | — | — | 3 |
| Walt Disney Animation Japan | Bay Lake | 1997 | 1 |
| Walt Disney Animation Studios | Burbank | 16 Oktober 1923 | 52 |
| Walt Disney Pictures | Burbank | 1923 | 386 |
| Walt Disney Productions | — | — | 5 |
| Walt Disney Studios Motion Pictures International | Burbank | 1961 | 5 |
| Walt Disney Studios Sony Pictures Releasing | Moskow | 2007 | 1 |
| Walt Disney Television | Burbank | 1983 | 10 |
| Walton Studios | Walton-on-Thames | 1899 | 88 |
| Wanda Visión | Pozuelo de Alarcón | — | 7 |
| Wapikoni Mobile | Montreal | 2004 | 11 |
| Warner Animation Group | Burbank | 2013 | 2 |
| Warner Bros. (F.E.) Inc., Taiwan Branch | — | — | 5 |
| Warner Bros. Animation | Sherman Oaks, Burbank | 1980 | 90 |
| Warner Bros. Cartoons | Burbank, Los Angeles | 10 November 1926 | 11 |
| Warner Bros. Discovery | Kota New York | 8 April 2022 | 1 |
| Warner Bros. Entertainment Italia | Roma | September 2000 | 7 |
| Warner Bros. Family Entertainment | Burbank | 1992 | 12 |
| Warner Bros. International Television Production Netherlands | Amsterdam | 2001 | 12 |
| Warner Bros. International Television Production New Zealand | Auckland | — | — |
| Warner Bros. Pictures | Burbank | November 1969 | 39 |
| Warner Bros. Studios | — | 1994 | 1 |
| Warner Bros. Television Distribution | Burbank | 10 Januari 1972 | — |
| Warner Bros. Television Studios | Burbank | 21 Maret 1955 | 18 |
| Warner Bros.-Seven Arts | Burbank | 15 Juli 1967 | 5 |
| Warner Horizon Unscripted Television | — | 2006 | 1 |
| Warner Music Vision | — | 1991 | 1 |
| Warner Premiere | Burbank | 2006 | 24 |
| Warp Films | Sheffield | 1999 | 10 |
| Warp X | Sheffield | 2005 | 4 |
| Washington Square Films | — | — | 1 |
| Watch Tower Bible and Tract Society of Pennsylvania | Warwick | 1884 | 1 |
| Wati B | Paris | 2000 | 1 |
| Wattpad | Toronto | November 2006 | 4 |
| Wave Pictures | Kopenhagen | — | 1 |
| Wavelength Productions | Burbank | — | 14 |
| Way Creative | Malmö | 2003 | — |
| Wayangworks | — | 2011 | 1 |
| Waypoint Entertainment | Los Angeles | 2010 | 1 |
| WBEZ | — | 1943 | 1 |
| Weed Road Pictures | — | 2004 | 8 |
| Wega Film | Wina | 1980 | 14 |
| Weiko Saawa Film | — | 1992 | 1 |
| Welwyn Studios | — | — | 7 |
| Wendros | Huddinge Municipality | 1976 | — |
| Wenhua Film Company | Shanghai | 1946 | 6 |
| Werc Werk Works | Minneapolis | 2008 | 4 |
| WerNix Studio | La Motte-Servolex | 25 April 2024 | 1 |
| West Digital Television | — | 2010 | 1 |
| West Siberian Film Studio | Novosibirsk | 13 November 1930 | — |
| West Virginia Public Broadcasting | — | 1969 | 1 |
| West World Story | — | — | 1 |
| Westdeutscher Rundfunk | Köln | 1956 | 31 |
| Western Movie Group | Yanta District | — | 16 |
| Westinghouse Broadcasting | Kota New York | 2 November 1920 | 2 |
| Weydemann Bros. | Berlin | — | 2 |
| WFE Production | — | — | 1 |
| WG Film | Malmö | 20 Juli 1995 | — |
| White Hill Studios | Mohali | — | 1 |
| Whitepoint Digital Oy | Helsinki | 22 Maret 2018 | 1 |
| Whitewater Films | — | 2004 | 4 |
| Wholeman | Roppongi | Oktober 1990 | — |
| Wien-Film | Wina | 1938 | 8 |
| Wild Side Films | Paris | 2002 | 1 |
| WILDart FILM | — | — | 1 |
| WildBrain | Halifax | 2006 | 1 |
| Wilding Picture Productions | — | — | 2 |
| Wildside | Roma | 2009 | 17 |
| WildStorm | La Jolla | 1992 | 1 |
| Willis Kent Productions | — | — | 2 |
| Windows Production House | — | — | 12 |
| Wingman Media | Kopenhagen | — | 2 |
| Winters/Lucas Productions | — | — | 1 |
| Wintertales | — | 13 Desember 2017 | 1 |
| Wit Studio | Musashino | Juni 2012 | 4 |
| Witfilm | — | — | 1 |
| Wivefilm | — | 1932 | 3 |
| Women Make Movies | Kota New York | 1972 | 2 |
| Wonderland Sound and Vision | Amerika Serikat | 2001 | 17 |
| Woodfall Film Productions | — | 1956 | 15 |
| Woodline Films | — | — | 1 |
| Wood’s Office | Tsukiji, Shinbashi, Mita | April 1983 | — |
| Woolner Brothers | — | 1955 | 3 |
| Words + Pictures | — | — | 1 |
| Works Progress Administration | — | 6 Mei 1935 | 1 |
| World Biz Journals | Singapura | 2010 | 4 |
| World Film Company | Fort Lee | 1914 | 22 |
| World Wide Films | Westburry Tower Office | 2015 | 1 |
| World Wide Motion Pictures Corporation | — | 1977 | — |
| World Wide Pictures | Minneapolis | 1951 | 2 |
| WorldStarHipHop | — | 2005 | 1 |
| Worldwide Biggies | Kota New York | 2005 | 1 |
| WOWOW | Akasaka, Tokyo | 1991 | 6 |
| Wunderbar Films | Chennai | — | 10 |
| Wuzhou Film Distribution | Tiongkok | — | 1 |
| WWE Home Video | Stamford | 16 April 1997 | 1 |
| WWE Studios | Los Angeles | 2002 | 41 |
| Wüste Film | Hamburg | 1989 | 13 |