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Companies (599)Years of activities
 D & H Games
1986 to 1992 
 D-Bug
2002 to 2006 
 D-Gate Company, Limited [Seoul, Korea]
        2002 
 D-Light [Japan]
2013 to 2017 
 D.C. Heath & Company
        1985 
 D.Cruise
        1997 
 D.N.D. Software
        1988 
 D3 Publisher, Incorporated
2000 to 2018 
 D3M Software
1985 to 1987 
 D4 Enterprise [Japan]
        2015 
 Da Boxon Team
1995 to 1997 
 DA Computers
        1983 
 Daba [Japan]
1992 to 1994 
 Dabhand Computing
1988 to 1989 
 Dabs Press
1987 to 1988 
 DACC, Limited
1982 to 1985 
 Dactari
        1982 
 Dadok
        1993 
 Dae Han [Korea]
        2005 
 Daedalus
1983 to 1997 
 Daehyun Electronics
        1990 
 Daeseung Intercom Company, Limited
2005 to 2009 
 Daewoo Electronics Company, Limited
1983 to 1991 
 Dahlberg Company, The [Minneapolis, MN, USA]
        1955 
 Dai-Itchi Productions
 
 Daido
1993 to 2007 
 Daigo [Japan]
 
 Daigom Games Corporation
2002 to 2003 
 Daiichi Denshi
1973 to 2018 
 Daiichi Shokai Company, Limited [Japan]
 
 Daiki
1997 to 1998 
 Daikoku Denki
1995 to 2001 
 Daikokuya Dennou
        1993 
 Dailly [Paris, France]
        1909 
 Dailly, Mike
        1997 
 Daily Computer Game
        1985 
 Daimanji [Japan]
 
 Daimyo Micom Gakuen
        1983 
 Dain, Albert E. [Pittsburg, PA, USA]
        1892 
 Daito Kogyo [Japan]
 
 Daito-Giken, Incorporated [Japan]
1998 to 2016 
 Daiwa [Nagoya, Japan]
        1965 
 Daiwon C&A Holdings Company, Limited [Korea]
2005 to 2007 
 Dale Associates, Incorporated
        1979 
 Dale Electronics
1967 to 1974 
 Dale Engineering Company [Los Angeles, CA, USA]
1948 to 1974 
 Dale Engr. & Sales Company [Chicago, IL, USA]
        1947 
 Dallas Enterprises Company [Dallas, TX, USA]
        1947 
 Dallas Novelty Sales [USA]
        1932 
 Dallo [Paris, France]
        1909 
 Dalriada Data Technology
        1996 
 Dalromi
        1986 
 Daly [USA]
        1927 
 Dama [Milano, Italy]
        1970 
 Damaschke, E.P.
1955 to 1957 
 Dan Dare Electronic
 
 DANA
1982 to 1983 
 Danbi System
1999 to 2001 
 Dance [Japan]
        1992 
 Danco Coin Machine Company [Baltimore, MD, USA]
        1947 
 Daniels, M.T. [Wichita, KS, USA]
1932 to 1933 
 Danish Crackers
1983 to 1994 
 Danish Cracking Crew
        1987 
 Danish Dream Line
1988 to 1993 
 Danish Game Smashers
        1987 
 Danish Gold
1985 to 2002 
 Danish Science
1989 to 1991 
 Danish Underground Crackers
1987 to 1988 
 Daou Infosys [Korea]
1991 to 1994 
 Darekasan
        1990 
 Dark Energy Sports, Limited
        2011 
 Dark Kingdom Himitsu Kenkyuusho
 
 Dark Logic
        1986 
 DarkSide MidNight Production
1998 to 1999 
 Darkside Software
 
 Darkstar
        1983 
 Dart Electronics
        1986 
 Darth Melkor
        2005 
 Daryde S.L.
1995 to 1999 
 Data Age, Incorporated [Campbell, CA, USA]
1982 to 1983 
 Data Amusement
        1984 
 Data Applications International [Belgium]
        1978 
 Data Backup
 
 Data Becker GmbH [Germany]
1983 to 2003 
 Data Beutner
        1987 
 Data Cash Systems
        1977 
 Data Comp [Italy]
        1985 
 Data Concepts
1986 to 1995 
 Data Design Systems
1985 to 1995 
 Data Doctor
        1985 
 Data East Corporation [Tokyo, Japan]
1978 to 2000 
 Data East Pinball [Melrose Park, IL, USA]
1987 to 1999 
 Data East USA, Incorporated [San Jose, CA, USA]
1982 to 1995 
 Data Media GmbH
1984 to 1986 
 Data Pop
        1984 
 Data Store
        1987 
 Data Tap
        1984 
 Data Trek
        1984 
 Data West Corporation [Japan]
1989 to 1998 
 Data West, Incorporated [Japan]
1985 to 1995 
 Data-assette
 
 Data-Or [France]
        1983 
 Database Educational Software
1984 to 1991 
 Database Publications
1983 to 1992 
 Database Software
1984 to 1989 
 DaTaBioTics
1983 to 1989 
 Databyte
1983 to 1988 
 Datacom Publications
1984 to 1985 
 DataComp
 
 Datacompaniet
1984 to 1985 
 Datam Polystar
1992 to 2002 
 Datamat [Greece]
1992 to 1993 
 Datamatic
 
 Datamost, Incorporated
1982 to 1984 
 DataPak Software
        1987 
 DataSmith
        1989 
 Datasoft
1982 to 1988 
 DataStar Systems
        1985 
 Datel
2000 to 2006 
 Datel Electronics
1983 to 1993 
 Daton Software
        1986 
 Datri Software
1994 to 1995 
 Datsu Alliance
        1991 
 Datsu Electronics
1988 to 1990 
 DATT Japan
1990 to 1997 
 Daugherty, William G. [Baltimore, MD, USA]
        1897 
 Daulan Vending Machines Sales Corporation [New York, NY, USA]
        1929 
 Daurat, Gilles
        1989 
 DAV Company [Doremus Automatic Vending]
        1901 
 Daval Manufacturing Company [Chicago, IL, USA]
1933 to 1941 
 Daval Products Corporation [Chicago, IL, USA]
1946 to 1948 
 David [Paris, France]
        1911 
 David Computer Software
 
 David McKeran
 
 David, Incorporated
        1993 
 Davidson & Associates, Incorporated
1986 to 1995 
 Davidson, Frank F. & Strite, Charles P. [Tama, IA, USA]
        1903 
 Daviet [France]
        1930 
 Davilex
2000 to 2002 
 Davis Metal Fixture Company [Lansing, MI, USA]
1934 to 1938 
 Davis Novelty [Elmira, NY, USA]
1892 to 1894 
 Davis Sales Company
        1972 
 Davis, Frank & Swetland, Lot Q. [Portland, OR, USA]
        1904 
 Davka Corporation
        1983 
 Dawoo Company, Limited
        2002 
 DawPol [Zory, Poland]
        2006 
 Daxel [Japan]
2014 to 2016 
 Day & Millward, Limited [Birmingham, England]
        1900 
 Dayco Gaming S.A. [Argentina]
        1997 
 Daycom Inc. [Dayton, OH, USA]
        1932 
 Dazskarat [Japan]
        2018 
 DaZZ [Japan]
1999 to 2000 
 DB-SOFT [Japan]
1983 to 1990 
 DBI [Decisions Business Innovations]
        1993 
 DBT Production
        1998 
 DCS
1984 to 1995 
 DCS [Japan]
1993 to 1997 
 DCsoft
1985 to 2015 
 DDT Enterprise, Incorporated
        1993 
 DDV
        1992 
 De Barron Software
        1984 
 De Janisch, Joseph C. [Paris, France]
        1900 
 De Kogel, Marcel
        1996 
 De Luxe Sales Company [Los Angeles, CA, USA]
        1930 
 De Luxe Scale Sales Company [Los Angeles, CA, USA]
        1930 
 De-Ta Corporation
 
 Dea Media
        1998 
 Dead Smurf
        1981 
 Deadcats Crackers
 
 Deadline
1984 to 1993 
 Dealer's Choice, Incorporated [Collingswood, NJ, USA]
        1966 
 Dean Novelty Company [Tulsa, OK, USA]
1924 to 1934 
 Dean Software
1983 to 1984 
 Dean, O.L. [Onawa, IA, USA]
        1935 
 Death Squad, The
2013 to 2018 
 Deca Disc Company, The [Waynesboro, PA, USA]
        1930 
 Decatur Fairest Wheel Company [Decatur, IL, USA]
1895 to 1896 
 Decatur Fairest Wheel Works [Decatur, IL, USA]
1894 to 1899 
 Deceit
1989 to 1992 
 Decision Development Company
        1988 
 Decker, D.L.
 
 Deco [Union, NJ, USA]
        1952 
 Dedem Automatica [Rome, Italy]
 
 Dee-Kay Systems
1984 to 1988 
 DeeKey
        1984 
 Deemedya, Incorporated
2015 to 2019 
 Deep Silver, Incorporated
2003 to 2019 
 Deep Zone
        1993 
 Defcard
2014 to 2015 
 Defiers
1987 to 2006 
 Defranc, A. [France]
        1935 
 Degler, Richard
1985 to 1986 
 Dejeunes, Rodolphe
        1984 
 DeKnight, Victor P. [Washington, DC, USA]
        1894 
 Del Norte Specialty Company [Elgin, IL, USA]
        1933 
 Delamare, Daniel
        1983 
 Delbert the Hamster Software
1991 to 1992 
 Delecluse, A. [France]
        1929 
 Delill, Johann
        1931 
 DellFern, Limited
 
 Delmar Manufacturing Company
 
 Delphine Software
1988 to 1991 
 Delta 3 Software
1990 to 1991 
 Delta 4 Software
1984 to 1986 
 Delta Coin [Trapaga, Spain]
 
 Delta Factory
        2013 
 Delta Konzept
        1990 
 Delta Labs
 
 Delta Software [Spain]
1989 to 1990 
 Delta4
 
 Deltacom
        1987 
 Deltasoft
        1992 
 Deltoid Developments
        1987 
 Deluxe
        1980 
 Deluxe Amusement Company
        1933 
 Demelius [UK]
        1906 
 Demetrius Cross
        1982 
 Demoniak
1985 to 2006 
 Demonware
1989 to 1993 
 Dempa Shinbunsha [Japan]
1980 to 1995 
 DeNa Company, Limited
        2019 
 Denda Games
 
 Dengeki Soft
1993 to 1994 
 Denhert, W. [Paris, France]
        1935 
 Denial
2008 to 2011 
 Deniam
1996 to 1999 
 Denim Srl [Italy]
 
 Denio, Michael
        1988 
 Denki Onkyo
        1980 
 Dennings, William [Dayton, OH, USA]
1882 to 1885 
 Dennison, J. [Leeds, England]
1883 to 1939 
 Denno Kagaku Kenkujo
        1990 
 Dennou Shoukai [Japan]
1990 to 1993 
 Denshi Media
        1998 
 Denson Company [FL, USA]
        1949 
 Dented Designs
1986 to 1987 
 Denz
1994 to 1995 
 Dependable Enterprises [Barberton, OH, USA]
1938 to 1948 
 Deplombsoft
 
 Depredators
1984 to 1992 
 Derby Automaten
        1950 
 Derbyshire Ram
 
 Deriac S.A. [Morat, Switzerland]
        1956 
 Deroin, Jim [Castro Valley, CA, USA]
1945 to 1948 
 Deshita Soft
 
 Design Design Software
1983 to 1986 
 Design People Software
1986 to 1988 
 Design Plus Industries, Incorporated [IL, USA]
1993 to 1996 
 Designstar Consultants
        1988 
 DesignWare
1983 to 1988 
 Desire [Japan]
1994 to 1996 
 Desktop Music Workshop
1989 to 1994 
 Destination Software
2001 to 2007 
 Destineer
        2007 
 Destiny Software
        1988 
 Destron, Incorporated [Bensenville, IL, USA]
 
 Detonators
 
 Detroit Coin Machine Company [Detroit, MI, USA]
        1905 
 Detroit Medical Company
        1901 
 Deutscher Meister [Germany]
        1975 
 Devaux, A. [Marseille, France]
        1913 
 Devecka Enterprises, Incorporated [Morris Township, NJ, USA]
        2000 
 Developmental Learning Materials
1982 to 1989 
 Device Automat [Russia]
        1981 
 Device Mfgrs., Incorporated
 
 Devices Manufacturing Corporation [Chicago, IL, USA]
        1952 
 Devices Manufacturing Sales Company [Chicago, IL, USA]
        1939 
 DevilMarkus
1985 to 2009 
 Devious Dezigns
1995 to 1996 
 Devo Graphix
        2007 
 Devolver Digital
2009 to 2019 
 Devulder, Samuel
2012 to 2015 
 DEWAG [Hannover, Germany]
1931 to 1936 
 DEX Corporation
 
 Deyola [Italy]
        1952 
 Dez Climax
        1994 
 DG
2005 to 2007 
 DGC
 
 DgPIX Entertainment
1998 to 1999 
 DGRM [Korea]
1995 to 1996 
 DHG Games
        2007 
 DHN [Japan]
1993 to 1994 
 Di Marco, Ubaldo [New York, NY, USA]
        1900 
 Diacom Products
1987 to 1988 
 Dialog Software
        1984 
 Diamant
 
 Diamant, Sidney [New York, NY, USA]
        1925 
 Diamond
1987 to 1988 
 Diamond Game [CA, USA]
2007 to 2011 
 Diamond Games
        1987 
 Diamond Machine Works [Denver, CO, USA]
        1901 
 Diamond Match Company, The
        1928 
 Diamond Novelty Company [Syracuse, NY, USA]
        1904 
 Diatec
        1983 
 Dice Multimedia Europe B.V.
1997 to 2001 
 Dick Smith Electronics
1981 to 1983 
 Dicta-Card Inc. [Mishawaka, IN, USA]
        1936 
 Didact AB [Sweden]
1979 to 1982 
 Didatech
1985 to 1986 
 Diebel, William [Philadelphia, PA, USA]
        1894 
 Diecom Products
        1985 
 Diego
 
 Dienst [Leipzig, Germany]
        1911 
 Dierdorff, Loyal V. & Snider, Francis M. [IA, USA]
        1904 
 Diffendaffer, James
        2011 
 DigiCube
        2002 
 Digimax
 
 Digital Adventures
        1988 
 Digital Artplan [Japan]
 
 Digital Concepts
1988 to 1989 
 Digital Control
1982 to 1984 
 Digital Crackers
1987 to 1988 
 Digital Denshi
        1987 
 Digital Designs
1988 to 1994 
 Digital Dream
        2002 
 Digital Dreams
        1993 
 Digital Equipment Corporation [DEC]
1961 to 1994 
 Digital Express
1986 to 1988 
 Digital Fantasia
1982 to 1984 
 Digital Fantasy
        1997 
 Digital Force
1987 to 1988 
 Digital G Power [Japan]
        2017 
 Digital Games, Incorporated [San Dimas, CA, USA]
1975 to 1976 
 Digital Golf, Incorporated [Konami Group] [Japan]
        2011 
 Digital Image
        1993 
 Digital Integration
1982 to 1997 
 Digital Kids
1999 to 2003 
 Digital Leisure
1997 to 2014 
 Digital Magic
1989 to 1990 
 Digital Marketing Corporation
1982 to 1990 
 Digital Microsystems
        1980 
 Digital Music Systems
 
 Digital Phenomena
        2000 
 Digital Pictures
1993 to 1996 
 Digital Prawn
2010 to 2011 
 Digital Psychosis
        1995 
 Digital Reality
        1992 
 Digital Research
1980 to 1992 
 Digital Soft
        1989 
 Digital Systems Corporation
 
 Digital Talk
1993 to 2014 
 Digital Tricks [Japan]
        1995 
 Digital Vehicle, Incorporated
        1995 
 Digital Worldwide
2001 to 2002 
 Digitalogue
1996 to 1998 
 DigiTek
        1987 
 Digitel
1982 to 1985 
 Digivision
 
 Digois, M. [France]
        1954 
 Dilithium Press
1983 to 1984 
 Dillens [Antwerp, Belgium]
1954 to 1955 
 Dilogic, S.A. [Spain]
        1986 
 DIM Corporation
        1991 
 Dimension
1991 to 2012 
 DIMensionNEW [Spain]
1984 to 1986 
 Dimond, J.
 
 Dinamic Software [Madrid, Spain]
1984 to 1991 
 Dinatronic
 
 Dionne, Greg
        2006 
 Dipke, Andreas & Krause, Michael
        1982 
 Direco International [France]
1982 to 1984 
 Dirty Minds
1996 to 2000 
 Dirtybit
        2016 
 DIS
 
 Disbrow, Charles A. [Harrisburg, PA, USA]
        1903 
 Disc Company, The
        1990 
 Disc Full Corporation
1993 to 1994 
 Disc-o-Matic [Antwerp, Belgium]
        1958 
 Discis
1991 to 1992 
 Discos Azahar [Malaga]
        1986 
 Discovery Channel Multimedia
        1995 
 Discovery Corporation [Japan]
1991 to 1996 
 Discovery Informatic [Spain]
1986 to 1990 
 Discovery Software
1985 to 1989 
 Disk Dreamers
        1987 
 Dismac
 
 Disney Company, Walt
1984 to 1994 
 Disney Interactive
1994 to 2015 
 Disney Software
1988 to 1993 
 Dispatch Games
        2018 
 Dispensers, Incorporated [Wilmington, DE, USA]
 
 Ditchburn [Lytham St. Annes, England]
        1948 
 DiverBras
        2008 
 Diversified Software Research
1982 to 1990 
 Divine Coding
        1997 
 Divmob
2013 to 2019 
 Dixie [Japan]
        1994 
 Dixie Manufacturing Company [Portland, OR, USA]
        1934 
 Dixie Music Company [Miami, FL, USA]
        1931 
 Dixie Nut Company
        1934 
 Dixie-Narco
        1969 
 Dixie-Vortex Company [Chicago, IL, USA]
 
 Dixon, S.H. [Chicago, IL, USA]
        1936 
 Dixons
 
 DJ Mutch
        1984 
 DJE
 
 DJL Software
1982 to 1984 
 DK Software
1994 to 1995 
 DK Tronics
1981 to 1989 
 DK-Soft [Detlef König]
1988 to 1989 
 DKH
        2008 
 DLM Academics
        1982 
 DLT
        2006 
 DM-Soft.
        1990 
 DMM Games
        2018 
 DMV [Daten und Medien Verlag] [Eschwege, Germany]
1985 to 1999 
 DNT Crew
1991 to 1994 
 DO Corporation [Japan]
1990 to 2006 
 Do Not Stamp Software
 
 DoA [Japan]
        1991 
 Dobrick, C.L. [New York, NY, USA]
        1891 
 Dobrovics, Zsolt
1987 to 1989 
 Docimodus
        1982 
 Doctor Who
2002 to 2006 
 Doctorsoft
1983 to 1984 
 Dodge, Benjamin S. [Minneapolis, MN, USA]
        1893 
 Dodgysoft
        1990 
 Doehler Vending Machines, Incorporated [New York, NY, USA]
        1931 
 DOG Software [Square div.] [Japan]
1986 to 1987 
 Dog, The
1987 to 1988 
 DoGA
 
 DoggySoft
1993 to 1994 
 Dolbeck Systems
 
 Doll & Sons, Incorporated, Jacob
 
 Dollarsoft
        1984 
 Dollhouse [Japan]
        1996 
 Dolphin Game Studio
        1991 
 Domain Software
        1990 
 Domark Group, Limited
1984 to 1996 
 Dominators
1984 to 2000 
 Domino Company
        1927 
 Domino Computing
        1985 
 Domyos
2007 to 2008 
 Dondzila, John
        1998 
 Dong Bang Electron
        1995 
 Dong Gue La Mi
        1994 
 Dongleware Verlags GmbH
1991 to 1993 
 Dongmyeong
1998 to 1999 
 Dongsung Wonder Park
1997 to 1998 
 Donnelly, David
        1981 
 Donut System
1995 to 1996 
 Dooly Elec. [Korea]
        2004 
 Doomdark
        1987 
 Dooyong [KOREA]
1990 to 1996 
 Doraldina Corporation, The [Rochester, NY, USA]
1928 to 1932 
 Dorasu
2009 to 2010 
 Dorcas Software
        1984 
 Dore Game [China]
2007 to 2009 
 Doric Computer Services
        1981 
 Doric Computer Software
        1984 
 Dormand, P.
        1983 
 Dormeier & Schröder
        1955 
 Dorneer
 
 Dorries, Helmut [Düsseldorf, Germany]
1954 to 1955 
 Dorsett Educational Systems
        1983 
 Dot Kikaku [Japan]
1987 to 1993 
 Dotmap Brothers
        1991 
 Doty, Charles
        2005 
 Doty-Runnels Company [Kalamazoo, MI, USA]
        1931 
 Double Play Adventures [Central Solutions TM] [UK]
1985 to 1986 
 Doubleday, Ebenezer Stillman [Brooklyn, NY, USA]
        1889 
 Doughnut Cracking Service
1986 to 1992 
 Doughty & Barrett [London, England]
        1896 
 Doughty, Mat
        2004 
 Douglass Specialties, Incorporated [New York, NY, USA]
        1924 
 Douglis & Company, A.S. [Chicago, IL, USA]
1930 to 1931 
 Douglis Machine Company [Chicago, IL, USA]
        1932 
 Dovetail Group, Incorporated, The
        1984 
 Doyle & Assoc.
        1992 
 DPS [Digital Portrait Systems] [Forti, Italy]
1987 to 2005 
 DR Korea
 
 Dr.-Ing. Reiner Foerst GmbH [Gummersbach, Germany]
1976 to 1981 
 Draconian
        1990 
 Dracula Fanz Team
1992 to 1995 
 Dragon [bootleggers]
        2004 
 Dragon Company
1990 to 1998 
 Dragon Company, Limited
2003 to 2009 
 Dragon Data, Limited
1982 to 1984 
 Dragon Studio
        1993 
 Dragon User
1984 to 1986 
 Dragonbreed Wetware
        1990 
 Dragonfire Services
1985 to 1992 
 Dragonware
        1989 
 Dragsoft
        1988 
 Dramatic Create [Japan]
2015 to 2018 
 Draper & Sons, George [Hopedale, MS, USA]
        1893 
 Draysoft
1985 to 1986 
 Dream Corporation [Korea]
        2005 
 Dream E&G Company [Korea]
        2002 
 Dream Factory
        1991 
 Dream Island
        1995 
 Dream Project
        1993 
 Dream Software Company, Limited [Japan]
 
 Dream Software, Limited [UK]
1983 to 1992 
 Dream Staff
1993 to 1994 
 Dream Weavers
 
 Dream World Adventures
1992 to 1993 
 Dreamcards
 
 DreamCatcher Interactive
1997 to 2009 
 DreamGEAR
2009 to 2015 
 Dreaming Djinn, The
        1988 
 Dreamotion, Incorporated
2016 to 2019 
 Dreamworks Games
1990 to 1992 
 DreamWorld Software
1991 to 1992 
 Drew Industries [Fairforest, SC, USA]
        1986 
 Drews, Incorporated
        1986 
 Drink-O-Mat Ind. Corporation [New York, NY, USA]
        1947 
 Driven
1994 to 2005 
 Driver, E.F. [Chicago, IL, USA]
        1929 
 Dro Software [Madrid, Spain]
1985 to 1992 
 Drobisch Bros. & Company [Decatur, IL, USA]
1896 to 1897 
 Drossler [Germany]
        1956 
 DRP [Deutsche ReichsPost] [Germany]
        1915 
 Drummer, Peter [Corning, NY, USA]
        1890 
 Druschky, Alfred [Berlin, Germany]
 
 Drushel Software, Rich
        1991 
 Drushell Company, J.D. [Chicago, IL, USA]
1929 to 1937 
 DryIce
        1994 
 DSC
        1991 
 DSD-Camelot
        1983 
 DSI Games
2002 to 2007 
 DSM Sales & Manufacturing, Incorporated
2008 to 2014 
 DSN-9
1993 to 1994 
 DSP
        1991 
 Dt. Kakao & Schokoladengesellschaft [Berlin, Germany]
        1900 
 DTB Software
        1987 
 DTMC, Incorporated
1992 to 1995 
 Dtp Entertainment AG
2005 to 2013 
 Dtp Young Entertainment GmbH & Company, KG
2006 to 2007 
 DTT Software
        1984 
 Du Grenier, Incorporated, Arthur H. [Haverhill, MA, USA]
1928 to 1957 
 Du Tech
        1988 
 Dual Crew Shining
1987 to 2011 
 Dual Dimension Software
        1986 
 Dual.D [Japan]
        1990 
 Ducksoft
        1985 
 Duckworth Home Computing
1983 to 1987 
 Ducros [Paris, France]
        1936 
 Dudley-Clark Company
1934 to 1935 
 Dudouit Fils [Paris, France]
        1932 
 Dugamex, Incorporated
        1995 
 Duintronic
        1989 
 Duisman, Georges
        1978 
 DuKane Corporation [St.Charles, ILL, USA]
        1966 
 Duko Tech [Korea]
        2002 
 Duncan Brown
1982 to 1985 
 Duncan Games
        1984 
 Dunder, Krisztan
        1992 
 Dundon, John [Cork, Ireland]
        1899 
 Dunex
1989 to 1993 
 Dunfield, Dave
        1983 
 Dungeon Software
1983 to 1984 
 Dunn, David W. [Ashland, KY, USA]
        1915 
 Dunstan
        1905 
 Duplex
1990 to 1991 
 Duplinter [Spain]
        1984 
 Duranik
        2004 
 Duraul Corporation [New York, NY, USA]
        1927 
 Durell Software
1983 to 1989 
 DuRose Coin Slot Machine
        1984 
 Dutch Crack Guys
1987 to 1988 
 Dutch Electronic Publishers
        1994 
 Dutch Manufacturing Company
        1930 
 Dutch Muggers Association
        1987 
 Dutch Swapping Team
1987 to 1988 
 Dutch USA-Team
1986 to 1988 
 Dutemple, William R. [Auburn, RI, USA]
        1902 
 Duun Bros. [Anderson, IN, USA]
1905 to 1906 
 Duval [France]
        1909 
 DVS Electronics Company
1999 to 2000 
 DVW Microelectronics
        1981 
 DW Gore
1984 to 1989 
 DW Software
        1988 
 Dwagon
        1991 
 DYA
 
 Dymond Software
        1982 
 Dyn Electronics, Incorporated [Miami, FL, USA]
        1976 
 Dyna Company, Limited [Osaka, Japan]
1989 to 2010 
 Dyna Computer Company, Limited
1985 to 1986 
 Dyna Electronics Company, Limited
1984 to 1987 
 Dynabyte
1983 to 1993 
 Dynacom [Sao Paulo, Brazil]
1982 to 1983 
 Dynacomp
1981 to 1982 
 Dynamic Amusement Devices
        1961 
 Dynamic Micro Associates
        1982 
 Dynamic Planning
        1994 
 Dynamic Production
1994 to 1995 
 Dynamic Software [UK]
        1984 
 Dynamic Toys
 
 Dynamics
        1983 
 Dynamite Designs
        1989 
 Dynamite-Crew, The
1986 to 1987 
 Dynamix
1990 to 1999 
 Dynamo Corporation [Grand Prairie, TX, USA]
1981 to 1995 
 Dynasoft, Incorporated
        1986 
 Dynavision
        1984 
 Dynax, Incorporated [Nagoya, Japan]
1983 to 1998 
 Dyscus Manufacturing Company
 
 Dörner, Péter