| 1 | I.E.C. Software | Великобритания | | |
| 2 | I.S.P. Marketing Ltd | | | |
| 3 | I.W.S. | Великобритания | | |
| 4 | Ian Carroll | Великобритания | | |
| 5 | Ian Cox | Великобритания | | |
| 6 | Ian Williams | Великобритания | | |
| 7 | Iber Software | | International Business S.A. | | | | |
| 8 | Iberofon S.A. | Испания | | |
| 9 | IBSA | | International Business S.A. | | | | |
| 10 | IC Software | | Ian Carroll | | | | |
| 11 | IC&D Ltd | | | |
| 12 | Ice Cool Coders | Великобритания | | |
| 13 | Ice Group | Россия | | |
| 14 | ICE Software | Великобритания | | |
| 15 | ICL | Великобритания | | |
| 16 | Icon Design Ltd | Великобритания | | |
| 17 | Icon Designs | Великобритания | | |
| 18 | Icon Software Ltd | Великобритания | | |
| 19 | Ideal Software | Испания | | |
| 20 | Idealogic S.A. | Испания | | |
| 21 | Idem Soft | Испания | | |
| 22 | Idi Productions | | EMM Information Systems GmbH | | | | |
| 23 | IDL | Великобритания | | |
| 24 | IE Applications Ltd | Великобритания | | |
| 25 | IG Programs | Великобритания | | |
| 26 | Igneous 1 Software | Великобритания | | |
| 27 | IJK Software Ltd | | BBC | | | | |
| 28 | Ijskosoft | | | |
| 29 | IKO & RGSoft | Словакия | | |
| 30 | Il Mio Computer | | Istituto Geografico De Agostini S.p.A. | | | | |
| 31 | Illusion | Польша | | |
| 32 | Illusion Dreams | Россия | | |
| 33 | Illusion Group | Польша | | |
| 34 | Illusion Software Ltd | Великобритания | | |
| 35 | Illusion Works | Россия | | |
| 36 | IMA Soft | Россия | | |
| 37 | Image Crew | Россия | Киров |  |
| 38 | Image Design | Великобритания | | |
| 39 | Image Software Ltd | Великобритания | | |
| 40 | Image Systems | Великобритания | | |
| 41 | Image Works | | Mirrorsoft Ltd | | | | |
| 42 | Images Ltd | | Images Software Ltd | | | | |
| 43 | Images Software Ltd | | | |
| 44 | Imagesoft | Великобритания | | |
| 45 | Imagination Studios | Литва | Вильнюс | |
| 46 | Imagine | Россия | | |
| 47 | Imagine Software Ltd | | Atari Inc | | | | |
| 48 | Imagitec Design Ltd | | Gremlin Interactive | | | | |
| 49 | Impact Creative Group | Россия | | |
| 50 | Impact Software [1] | Великобритания | | |
| 51 | Impact Software [2] | Великобритания | | |
| 52 | Impact Software [3] | Великобритания | | |
| 53 | Impact Software [4] | Великобритания | | |
| 54 | Imperial Soft | Испания | | |
| 55 | Imperial Software | Великобритания | | |
| 56 | Impressions Ltd | | Sierra On-Line | | | | |
| 57 | Impulse Software | Великобритания | | |
| 58 | Impulsoft | | Stichting Impuls | | | | |
| 59 | Impulze | | Zeppelin Games Ltd | | | | |
| 60 | IMS Software | Великобритания | | |
| 61 | Inaxel S.A. | Испания | | |
| 62 | Incantation | Великобритания | | |
| 63 | Incentive Software Ltd | | Superscape Ltd | | | | |
| 64 | Incognito Software | Великобритания | | |
| 65 | Independent Creators | Россия | | |
| 66 | Independent Software | Великобритания | | |
| 67 | Indescomp S.A. | Испания | | |
| 68 | Indigo Group | Украина | Кривой Рог | |
| 69 | Individual Software | Германия | | |
| 70 | Individual Software Service | | Jurgen Schumpich GmbH | | | | |
| 71 | INDUG | Великобритания | | |
| 72 | Infected Software | Великобритания | | |
| 73 | Infernal Designs |
| 74 | Inferno Software Inc | Россия | | |
| 75 | Infinite Imaginations | Великобритания | | |
| 76 | Infinite Software | Великобритания | | |
| 77 | INFO Soft [1] | Чехия | | |
| 78 | Infocom | | | |
| 79 | Infogrames | | Atari Inc | | | | |
| 80 | Infogrames [FR] | | Infogrames | | | | |
| 81 | Inform Software | Великобритания | | |
| 82 | Informatyczno-Elektroniczna Spoldzielnia Pracy INEL | Польша | | |
| 83 | Infosoft [2] | Россия | | |
| 84 | Infosoft Group | Россия | | |
| 85 | Infotek Group | Россия | Екатеринбург | |
| 86 | Infotek Team | Россия | | |
| 87 | Ingelek Jackson | | Ediciones Ingelek S.A. | | | | |
| 88 | Inmensa Bola de Manteca (IBM) | | | |
| 89 | Innosoft | Великобритания | | |
| 90 | INPUT | | Marshall Cavendish Ltd | | | | |
| 91 | Input Magazine | | | |
| 92 | Inside Law | Россия | Воронеж | |
| 93 | Insiders | | | |
| 94 | Insight Software | Великобритания | | |
| 95 | Instant Products | Великобритания | | |
| 96 | Instituto de Ciencias de la Educacion | | Universidad de Extremadura | | | | |
| 97 | Integer Research | Великобритания | | |
| 98 | Intellicreations Inc | | | |
| 99 | Intelligent Design Ltd | Великобритания | | |
| 100 | Intelligent Software Ltd | Великобритания | | |
| 101 | Intentions Matrix Crew | Россия | Чебоксары | |
| 102 | Interactive Software People | | I.S.P. Marketing Ltd | | | | |
| 103 | Interactive Technology | Великобритания | | |
| 104 | Interbit Software | Венгрия | | |
| 105 | Interceptor Group | | | |
| 106 | Interceptor Software | | Interceptor Group | | | | |
| 107 | Intercomputer Inc | | | |
| 108 | Interface Publications Ltd | Великобритания | | |
| 109 | Intergalactic Robots Ltd | Великобритания | | |
| 110 | International Business S.A. | | | |
| 111 | International Publishing & Software Inc | Канада | | |
| 112 | Interplay Productions Inc | Соединенные Штаты Америки | | |
| 113 | Intersoft Software | Великобритания | | |
| 114 | Interstella Software | Великобритания | | |
| 115 | Intraset Ltd | Великобритания | | |
| 116 | Intruders Corp | Россия | Курск | |
| 117 | Invaders8 | Россия | Рязань | |
| 118 | Investronica S.A. | Испания | | |
| 119 | Inxs Software | | | |
| 120 | Io Software | Великобритания | | |
| 121 | Ionis Software International | Германия | | |
| 122 | Ioshua S.A. | Испания | | |
| 123 | IPC Magazines Ltd | Великобритания | | |
| 124 | IQ Services | Великобритания | | |
| 125 | Iqisoft | Югославия | | |
| 126 | Iron boyz | Россия | Арзамас | |
| 127 | Iron Byte | Уругвай | | |
| 128 | Iron Falcons | Украина | | |
| 129 | Ironguys | Россия | | |
| 130 | IS-DOS Support Team | Россия | Балашов | |
| 131 | ISC Ltd | Великобритания | | |
| 132 | Island Records | | | |
| 133 | Isolated House | Великобритания | | |
| 134 | Istari Design | Испания | | |
| 135 | Istituto Geografico De Agostini S.p.A. | | | |
| 136 | ITS Software | | Antique Master Ltd | | | | |
| 137 | Ivan Benishek | Сербия | | |
| 138 | Ivan Berg | | | |
| 139 | Ivan Berg Software Ltd |
| 140 | Ivan Sanchez Jorda | Испания | | |
| 141 | Ivanovsoft | Россия | | |
| 142 | Iveson Software S.A. | Испания | | |
| 143 | Ivysoft | Великобритания | | |
| 144 | IZ Software | Великобритания | | |
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