| 1 | H & D Services | Reino Unido | | |
| 2 | H-2-O Ltd | Reino Unido | | |
| 3 | H-Tec | | | |
| 4 | H.A.W.K. Adventuring | | Home Adventure Writing Korporation | | | | |
| 5 | H.B. Software | Reino Unido | | |
| 6 | H.S. Software | Reino Unido | | |
| 7 | H.S.H. Ltda | Portugal | | |
| 8 | Hackers Intruders | Poland | | |
| 9 | Hackers Squad | Russia | Калининград | |
| 10 | Hackers Squad | Russia | | |
| 11 | Hackers United | | | |
| 12 | Hackers-Jokers Group | Russia | | |
| 13 | Hackerz Design Software | Russia | Тюмень | |
| 14 | Hackerz' Design Software | Russia | Тюмень |  |
| 15 | Hackerz' Design Software | Russia | | |
| 16 | Hackerz' Design Software | | | |
| 17 | Haggisoft |
| 18 | Hajasoft | Reino Unido | | |
| 19 | Hall Video Products | Reino Unido | | |
| 20 | Hall Video Products | Reino Unido | | |
| 21 | Halloween | Russia | Миасс | |
| 22 | Halsoft | | Richard G. Hallas | | | | |
| 23 | Hamster Software | | Bryan Kitts | | | | |
| 24 | Handasoft | | Harry Capeling & Anne Capeling | | | | |
| 25 | Handmade Software Ltd | | | |
| 26 | Hands On Software | Germany | | |
| 27 | Handsoft | Slovakia | | |
| 28 | Hangyaboy's | Hungary | | |
| 29 | Hanna Software | Reino Unido | | |
| 30 | Hans Enters | Netherlands | | |
| 31 | Hans-Peter Frings | Germany | | |
| 32 | Hans-Peter Frings Software | | Hans-Peter Frings | | | | |
| 33 | Hansesoft GmbH | Germany | | |
| 34 | Happy Computer | Germany | | |
| 35 | Harbour Soft | Reino Unido | | |
| 36 | HARD Software | Reino Unido | | |
| 37 | Hardcore-soft | Reino Unido | | |
| 38 | Hardsoft | República Checa | Rostov-on-Don | |
| 39 | HardWave Crew | Russia | Оболенск | |
| 40 | Haresoft Ltd | Reino Unido | | |
| 41 | Harlequin Software | Reino Unido | | |
| 42 | Harley Davidson | Russia | | |
| 43 | Harold Gale Associates Ltd | Reino Unido | | |
| 44 | Harris Software | Reino Unido | | |
| 45 | Harry Capeling & Anne Capeling | | | |
| 46 | Hartland Software | Reino Unido | | |
| 47 | Hartsoft | Reino Unido | | |
| 48 | Harvey Lodder | Reino Unido | | |
| 49 | Hasbro Inc | | | |
| 50 | Havensoft | Reino Unido | | |
| 51 | HC Mein Heim-Computer | Germany | | |
| 52 | HDS | | | |
| 53 | Heath Computing | Reino Unido | | |
| 54 | Heep Soft | Poland | | |
| 55 | Heinemann | Reino Unido | | |
| 56 | Hektic Software | Reino Unido | | |
| 57 | Helge Keller | Germany | | |
| 58 | Hell Raisers | Russia | Зерноград | |
| 59 | Hellenic Software | | Theo Develegas | | | | |
| 60 | Hello! Games | Portugal | | |
| 61 | Herman Software | Netherlands | | |
| 62 | Heroclaim | | | |
| 63 | Herosoft | | | |
| 64 | Herron Software | Reino Unido | | |
| 65 | Hessel Software | | Simon W. Hessel | | | | |
| 66 | Hestacrest Business Software | | Hestacrest Ltd | | | | |
| 67 | Hestacrest Ltd | | | |
| 68 | Hewson | | | |
| 69 | Hewson Consultants Ltd | | Rebellion Developments Ltd | | | | |
| 70 | Hewson Consultants Ltd | Reino Unido | | |
| 71 | Hewson Consultants Ltd-87 | | | |
| 72 | Hewson Consultants Ltd-90 | | | |
| 73 | Hexadecimal Press | Reino Unido | | |
| 74 | HGF Software | Reino Unido | | |
| 75 | Hi Score | España | | |
| 76 | Hi Tech Group | Belarus | Минск | |
| 77 | Hi-Tec | | | |
| 78 | Hi-Tec Software Ltd | | David A. Palmer Productions | | | | |
| 79 | Hi-Tec Software Ltd | | | |
| 80 | Hi-Tech Group | Ukraine | Донецк | |
| 81 | Hi-Tech Microsoft | Reino Unido | | |
| 82 | Hi-Tech Software | Reino Unido | | |
| 83 | Hi-Yin Music | Reino Unido | | |
| 84 | Hidden Codes Creative Group | | | |
| 85 | High Byte Software | | | |
| 86 | High Fashion | Reino Unido | | |
| 87 | High Soft | | Highfield Secondary School | | | | |
| 88 | High Style Software | Russia | Taganrog | |
| 89 | High Tech |
| 90 | High Voltage | Reino Unido | | |
| 91 | Highfield Secondary School | | | |
| 92 | Highlight Software | Reino Unido | | |
| 93 | Highsoft Systems | España | | |
| 94 | Hilderbay Ltd | Reino Unido | | |
| 95 | Hill MacGibbon | Reino Unido | | |
| 96 | Hillrise Software | Reino Unido | | |
| 97 | Hillview School | Reino Unido | | |
| 98 | Hilton Computer Services Ltd | Reino Unido | | |
| 99 | Hindleppe Software | Reino Unido | | |
| 100 | Hipocrates Soft | España | | |
| 101 | Hippo Enterprises | | Steve Lake | | | | |
| 102 | Hippo Software | Reino Unido | | |
| 103 | HiSoft | | HiSoft Systems | | | | |
| 104 | HiSoft Systems | | | |
| 105 | Hispanis Adventures | España | | |
| 106 | Hit-Pak | | Elite Systems Ltd | | | | |
| 107 | Hitech Games Plus | Reino Unido | | |
| 108 | Hitsoft | República Checa | | |
| 109 | HL Software | Reino Unido | | |
| 110 | HMSoft | Slovakia | | |
| 111 | HO Programs | Reino Unido | | |
| 112 | HOAX | Russia | Ижевск | |
| 113 | Hobby Edizioni S.r.l. | | | |
| 114 | Hobby Press S.A. | España | | |
| 115 | Hobby Software | Reino Unido | | |
| 116 | HoblSoft | República Checa | | |
| 117 | Hodder & Stoughton Ltd | Reino Unido | | |
| 118 | Holburn Software | Reino Unido | | |
| 119 | Holiday Brothers Ltd | Reino Unido | | |
| 120 | Holly Products | Reino Unido | | |
| 121 | Holmes McDougall Ltd | Reino Unido | | |
| 122 | Holt Saunders Ltd | | | |
| 123 | Home [Programs] Soft | Russia | | |
| 124 | Home Adventure Writing Korporation | | | |
| 125 | Home Adventure Writing Korporation | | | |
| 126 | Home Computing Weekly | | Argus Specialist Publications | | | | |
| 127 | Home Masters | Russia | | |
| 128 | Home Micro Software | Reino Unido | | |
| 129 | Home Studio | Russia | Всеволожск | |
| 130 | Homecomputer | Germany | | |
| 131 | HOMEGA Software | Hungary | | |
| 132 | Homesoft | Reino Unido | | |
| 133 | Homestudy Ltd | Reino Unido | | |
| 134 | Hometown Software | | Andrew Bogue | | | | |
| 135 | Honey Soft | Russia | Moscow | |
| 136 | Honeyfold Software Ltd | Reino Unido | | |
| 137 | HoopSnake Design |
| 138 | Hooy-Program | República Checa | | |
| 139 | Horizon Computers | Denmark | | |
| 140 | Hornby Software | Reino Unido | | |
| 141 | HorrorSoft | Russia | Череповец | |
| 142 | Hot-Shot Entertainments Ltd | Reino Unido | | |
| 143 | Hotrasoft | República Checa | | |
| 144 | Howard Marketing | Reino Unido | | |
| 145 | Howard Partnership | Reino Unido | | |
| 146 | Howard Software | Reino Unido | | |
| 147 | Hudson Soft | | Konami Ltd | | | | |
| 148 | Hueber Software | Germany | | |
| 149 | Human Soft | Russia | | |
| 150 | Human Softwere | Romania | | |
| 151 | Human Waste Company | Reino Unido | | |
| 152 | Humphrey Software | Reino Unido | | |
| 153 | Hutchinson | | | |
| 154 | Hutchinson Computer Publishing | | Hutchinson | | | | |
| 155 | Hypa Hypa Designs | Reino Unido | | |
| 156 | Hyperion Software | Reino Unido | | |
