| 1 | D&H Games | United Kingdom | | |
| 2 | D&K Softwaredevelopments | Germany | | |
| 3 | D-B Software | United Kingdom | | |
| 4 | D. Chapple | | | |
| 5 | D. Foote | | | |
| 6 | D.A.C.C. Ltd | United Kingdom | | |
| 7 | D.C. Software |
| 8 | D.D. Soft | Slovakia | | |
| 9 | D.G.R. Computer Products | United Kingdom | | |
| 10 | D.J. Musicsoft | Russia | | |
| 11 | D.N.D. Software | United Kingdom | | |
| 12 | D.S.M.C. | United Kingdom | | |
| 13 | D3M Software | United Kingdom | | |
| 14 | Dagenham Design Cell | United Kingdom | | |
| 15 | Daggersoft | United Kingdom | | |
| 16 | Dakrasoft | | | |
| 17 | Dalali Software Ltd | United Kingdom | | |
| 18 | Daniel Querol Bures | Spain | | |
| 19 | Daniele Software | Italy | | |
| 20 | Danik Educational | United Kingdom | | |
| 21 | Danish Cracking Department | Denmark | | |
| 22 | Danish Software Breakers | Denmark | | |
| 23 | DaniSoft |
| 24 | Dano Martanovic | Slovakia | | |
| 25 | Dansoft | Denmark | | |
| 26 | Dantoine Retro Studios | | | |
| 27 | Danton Studio | Croatia | | |
| 28 | Dark Green Enterprises | United Kingdom | | |
| 29 | Dark Sentinel Soft | Spain | | |
| 30 | Data Computing Systems | United Kingdom | | |
| 31 | Data Design Interactive | | | |
| 32 | Data Design Systems | | Data Design Interactive | | | | |
| 33 | Data Trading | Norway | | |
| 34 | Data-Skip | Netherlands | | |
| 35 | Data-Skip Software | | Data-Skip | | | | |
| 36 | Database Educational Software | | Database Publications Ltd | | | | |
| 37 | Database Publications Ltd | | Europress Group | | | | |
| 38 | Database Software | | Database Publications Ltd | | | | |
| 39 | Database Systems | United Kingdom | | |
| 40 | Databyte | United Kingdom | | |
| 41 | Datamasters Software | Lithuania | | |
| 42 | Dataputer | | Dataputer Computer Systems | | | | |
| 43 | Dataputer Computer Systems | | | |
| 44 | Datasoft | | John Garner | | | | |
| 45 | Datasoft Inc | | Intellicreations Inc | | | | |
| 46 | Datel Advanced Gaming Technology | | | |
| 47 | Datel Electronics Ltd | | Datel Advanced Gaming Technology | | | | |
| 48 | Daton Software | United Kingdom | | |
| 49 | Dave Fountain | United Kingdom | | |
| 50 | Dave Hanx | | | |
| 51 | Dave Hood | United Kingdom | | |
| 52 | Dave Hughes | United Kingdom | | |
| 53 | Dave J. Parker | United Kingdom | | |
| 54 | Davey Sludge | United Kingdom | | |
| 55 | daveysludge |
| 56 | Davic Games | United Kingdom | | |
| 57 | David A. Palmer Productions | | | |
| 58 | David Court | United Kingdom | | |
| 59 | David Gordon | United Kingdom | | |
| 60 | David J. Heelas | United Kingdom | | |
| 61 | David J. Looker | United Kingdom | | |
| 62 | David M. Haggarty | United Kingdom | | |
| 63 | David Martin Associates Ltd | United Kingdom | | |
| 64 | David Todd Software | United Kingdom | | |
| 65 | David Wornham | United Kingdom | | |
| 66 | DAZ Computer Software | United Kingdom | | |
| 67 | De Barron Software Ltd | United Kingdom | | |
| 68 | De Wit Productions Ltd | Netherlands | | |
| 69 | Dead Donkey Designs | United Kingdom | | |
| 70 | Dealer Deals Ltd | United Kingdom | | |
| 71 | Dean Hickingbottom | United Kingdom | | |
| 72 | Dean Software | United Kingdom | | |
| 73 | Deanysoft |
| 74 | debris | Russia | Krasnoyarsk |  |
| 75 | Dee-Kay Systems | United Kingdom | | |
| 76 | Deep Thought Software [1] | United Kingdom | | |
| 77 | Deep Thought Software [2] | United Kingdom | | |
| 78 | Defecto Digital Studios | | | |
| 79 | Defun Projects | Spain | | |
| 80 | Delbert the Hamster Software |
| 81 | Delirium Tremens | Russia | Barnaul | |
| 82 | Delirium Tremens | | Freedom | | | | |
| 83 | Delos Software | United Kingdom | | |
| 84 | Delphine Soft | Slovakia | | |
| 85 | Delta 3 Software | | Jason Nicholls | | | | |
| 86 | Delta 4 Software |
| 87 | Delta 7 Software | United Kingdom | | |
| 88 | Delta Hackers Group | Russia | Azov | |
| 89 | Delta Research Ltd | United Kingdom | | |
| 90 | Delta Software | United Kingdom | | |
| 91 | Delta Software S.L. | Spain | | |
| 92 | Deltarho Software | United Kingdom | | |
| 93 | Deltasoft [1] | United Kingdom | | |
| 94 | Deltasoft [2] | Slovakia | | |
| 95 | Deltoid Developments | United Kingdom | | |
| 96 | deMarche | Russia | Dzerzhinsk | |
| 97 | Dementia | United Kingdom | | |
| 98 | Dementia Corporation | Russia | Barnaul | |
| 99 | Demon Software | Czech Republic | | |
| 100 | Demos and Games Makers Software | Russia | St.Petersburg | |
| 101 | Denis & Gandalf Software | | | |
| 102 | Dennis Publishing | | | |
| 103 | DenSSoft | | | |
| 104 | Dentan Software Ltd | Sweden | | |
| 105 | Dented Designs | United Kingdom | | |
| 106 | Denton Designs | | Rage Software PLC | | | | |
| 107 | Dentron Computers | United Kingdom | | |
| 108 | Derek G. Glen | United Kingdom | | |
| 109 | Derf Software | | | |
| 110 | Design Design Software | United Kingdom | | |
| 111 | Destiny Software | United Kingdom | | |
| 112 | Destruction Team | Russia | Kamensk-uralskiy | |
| 113 | DEV Software | United Kingdom | | |
| 114 | Deva Educational Software | United Kingdom | | |
| 115 | Develon Software | Spain | | |
| 116 | Devidsoft | Russia | | |
| 117 | Devonshire House | United Kingdom | | |
| 118 | DGF Software |
| 119 | Di Martino Soft Team | Italy | | |
| 120 | Diabolic Software | Spain | | |
| 121 | Dialgrove Ltd | | | |
| 122 | Dialog Software | United Kingdom | | |
| 123 | Diamond Games | United Kingdom | | |
| 124 | Diamond Group | Russia | Moscow | |
| 125 | Diamond Software | United Kingdom | | |
| 126 | dibiliki | Estonia | Tallinn | |
| 127 | Die Krupps Group | Russia | Novocherkassk | |
| 128 | Digilog Software | Sweden | | |
| 129 | Digisoft | United Kingdom | | |
| 130 | Digital Arts Group | | | |
| 131 | Digital Design | Denmark | | |
| 132 | Digital Dreams | Russia | | |
| 133 | Digital Dreams Group | Russia | | |
| 134 | Digital Fantasia | United Kingdom | | |
| 135 | Digital Image |
| 136 | Digital Integration | | Titus | | | | |
| 137 | Digital Launch Corporation | Spain | | |
| 138 | Digital Life Group | Russia | Kemerovo | |
| 139 | Digital Magic Software | United Kingdom | | |
| 140 | Digital Masters Hackers & Creative Group | Russia | | |
| 141 | Digital Projects | | | |
| 142 | Digital Reality | Russia | Velikiy Novgorod | |
| 143 | Digital Reality [1] | United Kingdom | | |
| 144 | Digital Reality [2] | Russia | | |
| 145 | Digital Sound Labs | Russia | Moscow | |
| 146 | Digital Star | United Kingdom | | |
| 147 | DigiTape | United Kingdom | | |
| 148 | Digitronics | United Kingdom | | |
| 149 | Diman Plus Co. | Russia | Kursk | |
| 150 | Dimasoft | United Kingdom | | |
| 151 | Dimensions 41 | United Kingdom | | |
| 152 | DimikSoft | Russia | | |
| 153 | Dinamic | | | |
| 154 | Dinamic Multimedia | | | |
| 155 | Dinamic Multimedia S.A. | | | |
| 156 | Dinamic Software | | Microdigital Soft S.A. | | | | |
| 157 | Dinasoft | Spain | | |
| 158 | Dinky Productions | United Kingdom | | |
| 159 | Dinosoft | United Kingdom | | |
| 160 | Dipak Software | United Kingdom | | |
| 161 | Dirac Pin | | Pin Soft S.A. | | | | |
| 162 | Disabler Production Lab | Russia | | |
| 163 | Disabler Production LabAratory | Russia | Rostov-on-Don | |
| 164 | Discipline | Russia | Izhevsk | |
| 165 | Discount Software | United Kingdom | | |
| 166 | Discovery Software | | Gremlin Graphics Software Ltd | | | | |
| 167 | Discus Software | United Kingdom | | |
| 168 | Disen Software | | Rafael Hernamperez Martin | | | | |
| 169 | Disney Interactive | | | |
| 170 | Disney Software | | Disney Interactive | | | | |
| 171 | Dissa S.A. | Spain | | |
| 172 | Divide by Zero | United Kingdom | | |
| 173 | Dixie Software | United Kingdom | | |
| 174 | DJ Soft |
| 175 | DJ Software | Italy | | |
| 176 | DJH Software | United Kingdom | | |
| 177 | DJL Software Ltd |
| 178 | DJP Software | | Dave J. Parker | | | | |
| 179 | DK'Tronics Ltd | United Kingdom | | |
| 180 | DLT Games | United Kingdom | | |
| 181 | DMA Design Ltd | | Rockstar North Ltd | | | | |
| 182 | Dmitry Saltykov | Russia | | |
| 183 | Docimodus | United Kingdom | | |
| 184 | Dollarsoft | United Kingdom | | |
| 185 | Dolphin Software | | Radek Solar | | | | |
| 186 | Domara Computer Consultants | United Kingdom | | |
| 187 | Domark Ltd | | Eidos PLC | | | | |
| 188 | Dominic Wood | United Kingdom | | |
| 189 | Donisoft | United Kingdom | | |
| 190 | Donkeysoft |
| 191 | Dorcas Software | United Kingdom | | |
| 192 | Doreen Bardon | United Kingdom | | |
| 193 | Doric Computer Services | | Dorcas Software | | | | |
| 194 | Dorling Kindersley Ltd | | Pearson PLC | | | | |
| 195 | Dorling Kindersley Software | | Dorling Kindersley Ltd | | | | |
| 196 | Double H Software | | Kevin D. Cowtan | | | | |
| 197 | Double Play Adventures | | Central Solutions | | | | |
| 198 | Double Plus | Russia | Voronezh | |
| 199 | Double Soft [1] | Ukraine | | |
| 200 | Double-Jay Software | United Kingdom | | |
| 201 | Double-Pig-Soft | United Kingdom | | |
| 202 | DoubleSOFT [2] | Czech Republic | | |
| 203 | DPM Software | United Kingdom | | |
| 204 | Dr. Gonza Software | United Kingdom | | |
| 205 | Dragan Soft | Serbia | | |
| 206 | DRAGON Software | Spain | | |
| 207 | DragonHold Software | Spain | | |
| 208 | Draysoft | United Kingdom | | |
| 209 | Dream Makers Software | Belarus | Gomel | |
| 210 | Dream Software Ltd | United Kingdom | | |
| 211 | Dream Team | Russia | Chelyabinsk | |
| 212 | Dream World Adventures |
| 213 | Dreams Software Inc | Russia | | |
| 214 | Dreamscape Software | Spain | | |
| 215 | Drink Lovers | Russia | Yaroslavl | |
| 216 | Dro S.L. | | | |
| 217 | Dro Soft | | Dro S.L. | | | | |
| 218 | Dronsoft | Russia | | |
| 219 | Druid Hacking Centre | Russia | Tomsk | |
| 220 | Druid Software | Russia | | |
| 221 | DSA Computer Graphics | Slovakia | | |
| 222 | DT Soft | Spain | | |
| 223 | DTS Software | United Kingdom | | |
| 224 | Dual Dimension Software | United Kingdom | | |
| 225 | DualCrew-Shining | Poland | Wadowice | |
| 226 | Duckworth Educational Computing | | Gerald Duckworth & Co Ltd | | | | |
| 227 | DUH Productions | | | |
| 228 | Duisburger Cracking Service | Germany | | |
| 229 | Duke Soft Group | Ukraine | Odessa | |
| 230 | Duncan Bowen School | United Kingdom | | |
| 231 | Duncan Games | United Kingdom | | |
| 232 | Dunitz Software | United Kingdom | | |
| 233 | Duo Soft | Spain | | |
| 234 | Duplinter S.A. | Spain | | |
| 235 | Durell Software Ltd | | Elite Systems Ltd | | | | |
| 236 | Durex Rubber Company | | | |
| 237 | Durome Software | United Kingdom | | |
| 238 | Dutch Software | Netherlands | | |
| 239 | Dymond Software |
| 240 | Dynamic Software | United Kingdom | | |
| 241 | Dynamite Designs | United Kingdom | | |
| 242 | Dynamite Duo | | | |
| 243 | Dyrekcja Szkolenia Ekonomicznego PTE | Poland | | |
| 244 | Dziubanek Software | Poland | | |
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