| 'U' Companies | Period (Timeline) | Item #: Game | Item #: Non-Game |
|---|---|---|---|
| U Asked 4 It | 1978 (1 year) | ||
| U-Gin | 2007 to 2008 (2 years) | ||
| U-Me Soft. [Japan] | 1995 to 2004 (10 years) | ||
| U-Need-A Vendors, Inc. [Newark, NJ, USA] | 1948 (1 year) | ||
| U-Need-A-Pack Products Corp. [USA] | 1931 to 1942 (12 years) | ||
| U-NEEK Soft. | 1995 to 1997 (3 years) | ||
| U-Office [Japan] | |||
| U-Seal-It [Philadelphia, PA, USA] | |||
| U-Turn Vending Machines | 1996 to 2004 (9 years) | ||
| U.Games | 1983 (1 year) | ||
| U.K. ADAM Subscribers | 1987 (1 year) | ||
| UA, Ltd. [USA] | 1980 to 1983 (4 years) | ||
| UAC [United Amstrad Crackers] | |||
| UAI [Universe Affiliated International, Inc.] [Roselle, NJ, USA] | |||
| UAV | 1996 (1 year) | ||
| Ubhres Productions | 2009 (1 year) | ||
| UBI [United Billiards, Inc.] [Union, NJ, USA] | 1966 to 1981 (16 years) | ||
| UBI Soft [Creteil, France] [307211] | 1986 to 2001 (16 years) | ||
| Ubi Soft Ent. Soft. [Montreuil, France] | 1994 to 1997 (4 years) | ||
| UBI Soft Ent., Inc. [San Francisco, CA, USA] [08888] | 1990 to 2004 (15 years) | ||
| Ubi Soft Ent., Ltd. [Wimbledon, England] [362930] | 1998 to 2003 (6 years) | ||
| UBI Soft, Inc. [Sausalito, CA, USA] [08888] | 1992 to 1994 (3 years) | ||
| Ubik Soft. | 1984 (1 year) | ||
| Ubisoft Ent. [Montreuil sous Bois, France] | 2002 to 2024 (23 years) | ||
| Ubisoft, Inc. [San Francisco, CA, USA] [08888] | 2001 to 2024 (24 years) | ||
| Ubul | 1990 (1 year) | ||
| UCE | 1981 (1 year) | ||
| Uchida | 1984 (1 year) | ||
| Uchida Youkou | 1992 to 1993 (2 years) | ||
| Uchudo [Japan] | 1984 (1 year) | ||
| Uchuu Kikaku [Japan] | 1985 to 1988 (4 years) | ||
| Ucom [Japan] | 1992 to 1996 (5 years) | ||
| UCSD [University of California, San Diego] | |||
| UDM [United Disk Memories] | 1985 (1 year) | ||
| Udukisya [Japan] | 1995 (1 year) | ||
| Uechan Dayo [Japan] | 1996 (1 year) | ||
| Ueno, S. [Japan] | |||
| UEP Systems, Inc. | 1996 to 2000 (5 years) | ||
| UFO Interactive | 1999 to 2007 (9 years) | ||
| UG | |||
| UGA Soft. | 1994 (1 year) | ||
| Ugames | 1981 (1 year) | ||
| UGM [Ukrainian Gaming Machine] | 2005 (1 year) | ||
| Uhlman, Oscar [Bavaria, Germany] | 1888 (1 year) | ||
| UK Action | 1997 (1 year) | ||
| UK Gold British Soft. | 1984 (1 year) | ||
| UKC | 1986 to 1989 (4 years) | ||
| Ukidakensetsu Co., Ltd. | 2022 (1 year) | ||
| Uko Corp. [Japan] | 1978 to 1981 (4 years) | ||
| Ulchew Soft. | 1987 (1 year) | ||
| Ullmann, C. & J. [Paris, France] | 1910 (1 year) | ||
| Ulrich [Dr. M. Ulrich] | 1930 (1 year) | ||
| ULTIMA Electronics Corp. | 1991 (1 year) | ||
| Ultimate Games | 2019 (1 year) | ||
| Ultimate Play The Game | 1983 to 1988 (6 years) | ||
| Ultimate Products | 2008 to 2010 (3 years) | ||
| Ultimate Soft. | 1992 to 1996 (5 years) | ||
| Ultra Dolphin Revolution | 2021 (1 year) | ||
| Ultra Electronic | |||
| Ultra Games [Ultra Soft. Corp.] | 1988 to 1992 (5 years) | ||
| Ultracade Technologies | 2004 to 2005 (2 years) | ||
| UltraNarwhal | 2020 (1 year) | ||
| Ultrasoft [Slovakia] | 1984 to 1994 (11 years) | ||
| Ultrasoft, Inc. [WA, USA] | 1982 to 1983 (2 years) | ||
| Ultratec | 1985 to 1997 (13 years) | ||
| Ultravision | 1982 (1 year) | ||
| UMEO Studios | 2019 (1 year) | ||
| UMI [United Microware Industries] | 1981 to 1983 (3 years) | ||
| Umitsuki Seisakusho | 1995 to 1998 (4 years) | ||
| Umusic | 1986 (1 year) | ||
| Unbalance [Japan] | 1998 to 2001 (4 years) | ||
| Uncle Ernie's Soft. | 1985 (1 year) | ||
| Undead Sceners, The | 2014 (1 year) | ||
| Under4Mhz | 2021 (1 year) | ||
| Underground | |||
| Understanding | |||
| Une Une Soft | 1991 (1 year) | ||
| Uneeda [USA] | 1949 (1 year) | ||
| Unerring Master | |||
| Ungjin Media [Korea] | 1993 (1 year) | ||
| Uni Post Co. [Japan] | 1991 (1 year) | ||
| Uniana [Seoul, Koera] | 2001 to 2008 (8 years) | ||
| Unibox [France] | 1981 (1 year) | ||
| Unicard, Ltd. | 1985 (1 year) | ||
| Unichip | |||
| Unico Electronics Co., Ltd. [Seoul, Korea] | 1994 to 2000 (7 years) | ||
| UniComal | 1985 (1 year) | ||
| Unicorn Educational Soft. | 1987 (1 year) | ||
| Unicorn Soft. | 1983 to 1990 (8 years) | ||
| Unicum Gaming | 2007 (1 year) | ||
| Unidesa [Universal de Desarrollos Electronicos] | 1982 to 2020 (39 years) | ||
| Unilab | 1984 (1 year) | ||
| Unimex | 1981 (1 year) | ||
| Uninteresting | 2016 to 2022 (7 years) | ||
| Union Bird [Korea] | 2002 to 2003 (2 years) | ||
| Union Bond [China] | |||
| Union Digital | 1998 (1 year) | ||
| Union Games, Ltd. [UK] | |||
| Union Logic Soft. Publishing, Inc. | 1995 (1 year) | ||
| Union Machinery | 2000 to 2004 (5 years) | ||
| Union Major | 1983 (1 year) | ||
| Union Planning | 1983 to 1985 (3 years) | ||
| Unipacc [Japan] | 1990 (1 year) | ||
| Unipolbrit | 1986 (1 year) | ||
| Unique | 1984 to 1991 (8 years) | ||
| Unique Computer Services | 1983 to 1984 (2 years) | ||
| Unique Dev. | 1994 to 1995 (2 years) | ||
| Unique Soft. | 1988 to 1991 (4 years) | ||
| Unique's | 1989 (1 year) | ||
| UniqueGames Publishing GmbH | 2023 (1 year) | ||
| Uniron | |||
| UNIS [Universal Space] [Ontario, Canada] | 2007 to 2024 (18 years) | ||
| UniSoft Corp. | |||
| Unisoft GMK | 1986 (1 year) | ||
| Unison World | 1985 to 1988 (4 years) | ||
| Unisonic | 1976 to 1978 (3 years) | ||
| Unit Sales Co. [Lincoln, NE, USA] | 1925 (1 year) | ||
| Unit-e Technologies L.C. | 2011 to 2017 (7 years) | ||
| Unite Trading [Korea] | 1993 (1 year) | ||
| Unitech [Korea] | 1993 to 1996 (4 years) | ||
| United Amusement Co. [Kansas City, MO, USA] | 1937 to 1938 (2 years) | ||
| United Amusements [Los Angeles, CA, USA] | 1987 to 1989 (3 years) | ||
| United Artists | 1987 to 1995 (9 years) | ||
| United Automatic Machine Co. [Kansas City, MO, USA] | 1905 to 1931 (27 years) | ||
| United Coin Machine Co. [USA] | |||
| United Engineering Works | 1929 (1 year) | ||
| United Enterprises, Ltd. [Staten Island, NY, USA] | 1971 (1 year) | ||
| United Games Co., Inc. [USA] | |||
| United Games Ent. GmbH | 2023 (1 year) | ||
| United Games, Inc [Portland, OR, USA] | 1976 to 1979 (4 years) | ||
| United Graphic Artists | 1990 to 1991 (2 years) | ||
| United Innovations Plus | 1991 (1 year) | ||
| United Label | 2021 (1 year) | ||
| United Machine & Supply Co. [New York, NY, USA] | 1902 (1 year) | ||
| United Mfg. Co. [UMC] [Chicago, IL, USA] | 1942 to 1964 (23 years) | ||
| United Microelectronics Corp. | 1993 to 1995 (3 years) | ||
| United Soft. GmbH [Germany] | 1989 to 1990 (2 years) | ||
| United Soft. of America | 1980 to 1982 (3 years) | ||
| United Specialty Amusement Co. [Chicago, IL, USA] | 1933 (1 year) | ||
| United States Automatic Perfuming Co. [Chicago, IL, USA] | 1890 (1 year) | ||
| United States Bulletin Co. [Kiteery, ME, USA] | 1898 (1 year) | ||
| United States Cash Sales Co. [New York, NY, USA] | 1904 (1 year) | ||
| United States Marketing | |||
| United States Novelty Co. [Chicago, IL, USA] | 1893 to 1894 (2 years) | ||
| United States Pencil Vending Co. [Los Angeles, CA, USA] | 1904 (1 year) | ||
| United States Postage Stamp Delivery Co. [Boston, MS, USA] | 1892 (1 year) | ||
| United States Slot Machine Co. [New York, NY, USA] | 1897 (1 year) | ||
| United Textile Fabricators [Toms River, NJ, USA] | |||
| United Vending Machine Co. [Cleveland, OH, USA] | 1915 (1 year) | ||
| Unitron Eletronica | 1982 to 1985 (4 years) | ||
| Unity Games Japan | 2014 (1 year) | ||
| Universal [USA] | 1889 to 1891 (3 years) | ||
| Universal Advertising Co. [Buffalo, NY, USA] | 1897 (1 year) | ||
| Universal Advertising Machine Co. [Kittery, ME, USA] | 1894 (1 year) | ||
| Universal Bros. | 2015 to 2018 (4 years) | ||
| Universal City Studios, Inc. | 1992 (1 year) | ||
| Universal Co., Ltd [Tokyo, Japan] | 1974 to 2004 (31 years) | ||
| Universal Coin Co. [New Britain, CT, USA] | |||
| Universal Entreprises Corp. [Japan] | 2011 (1 year) | ||
| Universal Gamex Corp. [Los Angeles, CA, USA] | 1983 (1 year) | ||
| Universal Handkerchief Mfg. Co. [New York, NY, USA] | 1927 (1 year) | ||
| Universal Industries, Inc. [Chicago, IL, USA] | 1949 to 1950 (2 years) | ||
| Universal Interactive Studios, Inc. | 1995 to 2004 (10 years) | ||
| Universal Match Co. | |||
| Universal Mfg. Corp. | |||
| Universal Prod. Co. | |||
| Universal Research Labs [URL] | 1974 to 1977 (4 years) | ||
| Universal Sales Machines Co. [Boston, MS, USA] | 1925 to 1927 (3 years) | ||
| Universal Space Video Game [UNIS] | 2013 to 2019 (7 years) | ||
| Universal Studios | |||
| Universal USA, Inc. [Santa Clara, CA, USA] | 1983 to 1984 (2 years) | ||
| Universal Venders, Inc. | |||
| Universal Vending Machine Corp. [Boston, MS, USA] | 1926 (1 year) | ||
| Universal Vendors [St. Louis, MO, USA] | |||
| Universal Vendors Corp. [Columbus, OH, USA] | 1939 (1 year) | ||
| Universal Vendors, Inc. [Philadelphia, PA, USA] | |||
| Universal Video Games | 1982 (1 year) | ||
| Universal Video Spiel | 1981 (1 year) | ||
| Universe Kaihatsu [Japan] | 2000 (1 year) | ||
| University College London | 1984 (1 year) | ||
| University of Bristol | 1983 (1 year) | ||
| University of Cambridge | 1987 (1 year) | ||
| University of Houston, The | 1974 (1 year) | ||
| University of Illinois | 1975 to 1977 (3 years) | ||
| University of Lancaster | 1986 to 1987 (2 years) | ||
| University of Leeds | 1984 (1 year) | ||
| University of London Computer Centre | 1985 (1 year) | ||
| University of Massachusetts | 1985 (1 year) | ||
| University of Michigan & Southern California | 1970 (1 year) | ||
| University of Nottingham | 1984 (1 year) | ||
| University of Reading | 1986 (1 year) | ||
| University of Sussex Computing Centre | 1983 to 1984 (2 years) | ||
| University of Waterloo | 1980 to 1985 (6 years) | ||
| University Press [New York, NY, USA] | |||
| University Soft. | 1983 to 1984 (2 years) | ||
| Uniwang | 1995 (1 year) | ||
| Unix | 1991 (1 year) | ||
| Unknown | -350 to 2024 (2375 years) | ||
| Unknown [Brazil] | 2004 (1 year) | ||
| Unknown [China] | 1984 to 2017 (34 years) | ||
| Unknown [Finland] | 1929 (1 year) | ||
| Unknown [France] | 1895 to 2006 (112 years) | ||
| Unknown [Germany] | 1880 to 2001 (122 years) | ||
| Unknown [Greece] | 1995 to 1997 (3 years) | ||
| Unknown [India] | |||
| Unknown [Italy] | 1959 to 2001 (43 years) | ||
| Unknown [Japan] | 1975 to 2015 (41 years) | ||
| Unknown [Korea] | 1976 to 2016 (41 years) | ||
| Unknown [Poland] | 1990 (1 year) | ||
| Unknown [Russia] | 1984 to 2008 (25 years) | ||
| Unknown [Spain] | 1981 to 2014 (34 years) | ||
| Unknown [Taiwan] | 1985 to 1986 (2 years) | ||
| Unknown [UK] | 1900 to 1989 (90 years) | ||
| Unknown [USA] | 1911 to 2002 (92 years) | ||
| Unknown Worlds Ent. | 2021 (1 year) | ||
| Unlimited | 1994 (1 year) | ||
| UnlimitedStar23 | 2006 to 2012 (7 years) | ||
| Uno Electron | 1995 (1 year) | ||
| Unreal World Group | 1994 (1 year) | ||
| UnSane Creations | 1989 (1 year) | ||
| Unstable Label | 2011 (1 year) | ||
| Unties [Japan] | 2018 (1 year) | ||
| Untold Tales | 2022 to 2024 (3 years) | ||
| Untouchable Cracking Force | 1987 to 1988 (2 years) | ||
| UOAP [Japan] | |||
| UOD Soft | 1992 (1 year) | ||
| Up & Down | 1986 (1 year) | ||
| Update Kits, Inc. | 1982 (1 year) | ||
| UPI [Universal Products, Inc.] [Jefferson City, MS, USA] | 1965 to 1971 (7 years) | ||
| UPL Co., Ltd. [Universal PlayLand] | 1983 to 1994 (12 years) | ||
| Upper East Tennessee Distributing [Gray, TN, USA] | |||
| Uppercut Games Pty., Ltd. | 2022 (1 year) | ||
| Uprising Soft | 2017 (1 year) | ||
| Upsilandre | 2021 to 2023 (3 years) | ||
| Upstar | 1998 to 2000 (3 years) | ||
| Uptown Soft. | 1984 (1 year) | ||
| Uranie Soft. | 1985 to 1988 (4 years) | ||
| Urban Denshi [Japan] | 1985 (1 year) | ||
| Urban E. Soft | 1981 (1 year) | ||
| Urban Industries | |||
| Urban Plant | 1997 (1 year) | ||
| Urban Wolf Games | 2024 (1 year) | ||
| Urbansoft | 1987 (1 year) | ||
| Ursoft [Germany] | 1983 (1 year) | ||
| US Astrotron | |||
| US Billiards, Inc. [Amityville, NY, USA] | 1966 to 1981 (16 years) | ||
| US Challenge Co. [Chicago, IL, USA] | 1946 (1 year) | ||
| US Dreams, Inc. | 1994 to 1995 (2 years) | ||
| US Electric Mfg. Co. [New York, NY, USA] | 1933 (1 year) | ||
| US Games Corp. [Santa Clara, CA, USA] | 1980 to 1982 (3 years) | ||
| US Games, Inc. | 1987 to 1994 (8 years) | ||
| US Gold France [Chateauneuf de Grasse, France] [13442] | 1986 to 1989 (4 years) | ||
| US Gold France [Valbonne, France] [13442] | 1990 (1 year) | ||
| US Gold, Inc. [San Francisco, CA, USA] [43175] | 1990 to 1996 (7 years) | ||
| US Gold, Ltd. [Birmingham, England] [13442] | 1982 to 1996 (15 years) | ||
| US Novelty Co. [Kansas City, MO, USA] | 1893 (1 year) | ||
| US Robotics | 1996 to 1997 (2 years) | ||
| US Shuffleboard Exchange [New York, NY, USA] | |||
| US Woodcraft Corp. [St. Louis, MO, USA] | 1949 (1 year) | ||
| USA Soft. | 1983 (1 year) | ||
| Usborne Publishing | 1982 to 1984 (3 years) | ||
| USC | 1972 (1 year) | ||
| Use Corp. [Japan] | 1986 to 1990 (5 years) | ||
| usebox.net | 2024 (1 year) | ||
| Useless Soft | 1995 to 2000 (6 years) | ||
| USER Corp. | |||
| User So | |||
| UserSoft | 1986 (1 year) | ||
| Ushi Soft | 1994 (1 year) | ||
| USSR | 1980 (1 year) | ||
| USTL | 1984 to 1985 (2 years) | ||
| Usui Pasocom Center [Japan] | |||
| Uta Elektroakustik | 1958 (1 year) | ||
| UTEC, Inc. | |||
| Util-Soft | 1989 to 1990 (2 years) | ||
| Utilico Microware | 1984 to 1986 (3 years) | ||
| Utilities Unlimited | 1988 to 1996 (9 years) | ||
| Utility Coin Machine Co. [Los Angeles, CA, USA] | 1933 (1 year) | ||
| Utopia Soft. Dev. | 1980 (1 year) | ||
| Utopian World of Sandwiches | 2016 (1 year) | ||
| UTS | 1983 (1 year) | ||
| UTV Ignition Ent., Ltd. | 2009 to 2010 (2 years) | ||
| Uzzoni, P. [Pontarlier, France] | 1896 (1 year) |