| 1 | P&M Designs | Великобритания | | |
| 2 | P&M Software | Великобритания | | |
| 3 | P. Boulton Software |
| 4 | P. Duffin | Великобритания | | |
| 5 | P. Stanley | | | |
| 6 | P.A. Soft | Россия | | |
| 7 | P.A.W. Software | Великобритания | | |
| 8 | P.B. Soft | Италия | | |
| 9 | P.B. Software | Великобритания | | |
| 10 | P.C.G. Computer Software | Великобритания | | |
| 11 | P.D. Visual Marketing | Великобритания | | |
| 12 | P.D.A. Systems | Великобритания | | |
| 13 | P.J. Software | Испания | | |
| 14 | P.N. Software | Нидерланды | | |
| 15 | P.R. Computer | Венгрия | | |
| 16 | P.R. Software [2] | | Philip Richmond | | | | |
| 17 | P.W. Software | Германия | | |
| 18 | Pablo Ariza Software Ltd |
| 19 | PAC Soft | Испания | | |
| 20 | Pace Software | Великобритания | | |
| 21 | Pacific Software | Великобритания | | |
| 22 | Paddy Coleman | Великобритания | | |
| 23 | Pagesoft |
| 24 | PAL Developments | | | |
| 25 | PAL Developments | | Palmer Acoustics Ltd | | | | |
| 26 | PAL Software | Великобритания | | |
| 27 | Palace Software | | Palace Video Group | | | | |
| 28 | Palace Video Group | | | |
| 29 | Palamar Software | | Mariano E.M. Chiaverano | | | | |
| 30 | Palantir Programs | Великобритания | | |
| 31 | Palle Norman | Дания | | |
| 32 | Palmer Acoustics Ltd | | | |
| 33 | Palsoft | Россия | | |
| 34 | Pan Books Ltd | | Macmillan Publishers Ltd | | | | |
| 35 | Panc Software | Россия | | |
| 36 | Panda Design | | | |
| 37 | Panda Software | Великобритания | | |
| 38 | Pandora | | Interceptor Group | | | | |
| 39 | Pandovisia Software | Сербия | | |
| 40 | Panic Software | Испания | | |
| 41 | Panik Software |
| 42 | Pansoft | | | |
| 43 | Pantheon Software | Великобритания | | |
| 44 | Papaya Dezign | Великобритания | | |
| 45 | Papermac | | Macmillan Publishers Ltd | | | | |
| 46 | Papersoft | Италия | | |
| 47 | Papillon Software | Великобритания | | |
| 48 | Paradise | Соединенные Штаты Америки | | |
| 49 | Paradise Software [1] | Великобритания | | |
| 50 | Paradise Software [2] | Великобритания | | |
| 51 | Paradox Crew | Россия | | |
| 52 | Paragon Group | Беларусь | Могилев | |
| 53 | Paragon Programming Ltd | | Tiertex Ltd | | | | |
| 54 | Paraninfo S.A. | Испания | | |
| 55 | Paraninfo Soft S.A. | | Paraninfo S.A. | | | | |
| 56 | Paranoid Software | Великобритания | | |
| 57 | Parker Brothers | | Hasbro Inc | | | | |
| 58 | Parker Software | | Parker Brothers | | | | |
| 59 | Parkgate Publishers | Великобритания | | |
| 60 | Parlophone | | | |
| 61 | Partyline Ltd | Великобритания | | |
| 62 | Partyzans | Россия | |  |
| 63 | PASA Soft | Испания | | |
| 64 | PASE Group | Великобритания | | |
| 65 | Pasesoft | | PASE Group | | | | |
| 66 | Patrick Software | Хорватия | | |
| 67 | Patrik Rak | Чехия | | |
| 68 | Patxi Projects | Испания | | |
| 69 | Paul Coyle Software | Великобритания | | |
| 70 | Paul McKenna | | | |
| 71 | Paul Tomkins | Великобритания | | |
| 72 | Pavel Korensky Computer Software | | | |
| 73 | Paxman Promotions | | Prism Leisure Corporation PLC | | | | |
| 74 | PB Systems | Великобритания | | |
| 75 | PCG Software | Великобритания | | |
| 76 | PDQ Software | Великобритания | | |
| 77 | Peacock Software | Великобритания | | |
| 78 | Peak Mathematics | Великобритания | | |
| 79 | Peak Services | Великобритания | | |
| 80 | Peaksoft | Великобритания | | |
| 81 | Pearl Software | Великобритания | | |
| 82 | Pearson PLC | | | |
| 83 | Pearsons Computing |
| 84 | PeaSea Software | | Paddy Coleman | | | | |
| 85 | Pedro Fernandez Lopez | Испания | | |
| 86 | Pedro Manuel Rodriguez Salas | Испания | | |
| 87 | Peekay Software | Великобритания | | |
| 88 | Peeny Pad Software PLC | Великобритания | | |
| 89 | Peet and Wil | | | |
| 90 | Pegas | | | |
| 91 | Pegasus Software | Великобритания | | |
| 92 | Peker Computers Ltd | Великобритания | | |
| 93 | Pelagon Software | | Gary Power | | | | |
| 94 | Penazo Soft | Испания | | |
| 95 | Penguin Books Ltd | | Pearson PLC | | | | |
| 96 | Penguin Study Software | | Literature.co.uk | | | | |
| 97 | Penna Productions | Великобритания | | |
| 98 | Pennsoft | Великобритания | | |
| 99 | Pensoft | Великобритания | | |
| 100 | Pentagram Software | Великобритания | | |
| 101 | PEP Soft S.A. | Испания | | |
| 102 | Pepsi Soft |
| 103 | Perestroika Software | Россия | | |
| 104 | Perfection Software |
| 105 | Personal Computer Games | | VNU Business Publications NV | | | | |
| 106 | Personal Computer News | | VNU Business Publications NV | | | | |
| 107 | Personal Computer World | | VNU Business Publications NV | | | | |
| 108 | Personal Software Services Ltd | | | |
| 109 | Perspective Group | Россия | Вологда | |
| 110 | Peter Lovett Ltd | Великобритания | | |
| 111 | Peter Machala | Словакия | | |
| 112 | Peter Machala Software | | Peter Machala | | | | |
| 113 | Peter S. Boulton | Великобритания | | |
| 114 | Peter Turanyi | Словакия | | |
| 115 | Petersoft | Чехия | | |
| 116 | Petr Vones | Чехия | | |
| 117 | Pevosoft |
| 118 | Phantasy | Латвия | | |
| 119 | Phantom Family | Россия | Чебоксары | |
| 120 | Phantom Family Corp | Россия | | |
| 121 | Phantom Ltd | Россия | | |
| 122 | Phantomsoft | Германия | | |
| 123 | Pharao Code Group | Россия | | |
| 124 | Phil Hard Productions | Великобритания | | |
| 125 | Philip Bee | Великобритания | | |
| 126 | Philip J. Fenton | Великобритания | | |
| 127 | Philip M. Reynolds | Великобритания | | |
| 128 | Philip Richmond | Великобритания | | |
| 129 | Phipps Associates | Великобритания | | |
| 130 | Phoenix Publishing Associates | Великобритания | | |
| 131 | Phoenix Software Ltd | Великобритания | | |
| 132 | Phonex Software | Польша | | |
| 133 | Pi Software | Великобритания | | |
| 134 | Piccolo Books | | Piper Books Ltd | | | | |
| 135 | Pick & Choose | | Pick & Choose [F.G.] Ltd | | | | |
| 136 | Pick & Choose [F.G.] Ltd | | | |
| 137 | Picosoft | Великобритания | | |
| 138 | Picturesque | Великобритания | | |
| 139 | Pikadee Software | Великобритания | | |
| 140 | PIM Software | Греция | | |
| 141 | Pin Soft S.A. | Испания | | |
| 142 | Pinehurst Data Studios | Великобритания | | |
| 143 | Pinksoft | Великобритания | | |
| 144 | Pipeq Systems | | L.W. Tomlin | | | | |
| 145 | Piper Books Ltd | | | |
| 146 | Piper Software | | Piper Books Ltd | | | | |
| 147 | Piranha | | Macmillan Publishers Ltd | | | | |
| 148 | Pirate Computing | Великобритания | | |
| 149 | Pirate Software Ltd | | Software Publishing Associates | | | | |
| 150 | Piter Ltd | Россия | | |
| 151 | Pixel | | | |
| 152 | Pixel Productions | | Pixel Productions Multimedia Design | | | | |
| 153 | Pixel Productions Multimedia Design | | | |
| 154 | PixelSoftware | | | |
| 155 | PKCS | | Pavel Korensky Computer Software | | | | |
| 156 | Placebo | Россия | Ковров | |
| 157 | Placet Software | Великобритания | | |
| 158 | Planecon Informatica Ltda | | | |
| 159 | Plansoft | | Planecon Informatica Ltda | | | | |
| 160 | Planthills Ltd | | | |
| 161 | Platinum Productions | Великобритания | | |
| 162 | Play Games Software | Испания | | |
| 163 | Playability By Design | Великобритания | | |
| 164 | Players Premier | | Interceptor Group | | | | |
| 165 | Players Software | | Interceptor Group | | | | |
| 166 | Playgear Company | Россия | Кемерово | |
| 167 | Playground Software | Великобритания | | |
| 168 | Plazastar Software | Великобритания | | |
| 169 | Plomba Software | | | |
| 170 | Plus-One Software | Великобритания | | |
| 171 | pm | | | |
| 172 | PMCG Soft |
| 173 | Pocket Money Software | | Central Solutions | | | | |
| 174 | Polarsoft | | Jason Holt | | | | |
| 175 | Polbrit International | | Timex Inc | | | | |
| 176 | Polsoft | Польша | | |
| 177 | Polythene Soft | Испания | | |
| 178 | Poolpet Software | | Wojciech Lazarski | | | | |
| 179 | Pooter Games | | | |
| 180 | Poppy Programs | Великобритания | | |
| 181 | Poppy Soft | Великобритания | | |
| 182 | Popular Computing Weekly | | Sunshine Publications Ltd | | | | |
| 183 | Portland Artists | | | |
| 184 | Postern Ltd | Великобритания | | |
| 185 | POWER DiamonD Software | Россия | | |
| 186 | Power Group | Беларусь | Витебск | |
| 187 | Power of Sound | Россия | Ижевск | |
| 188 | Power of Sound Web Team | Россия | | |
| 189 | Power Soft [1] | Германия | | |
| 190 | Power Soft [2] | Румыния | | |
| 191 | Power Software S.A. | Испания | | |
| 192 | Power Systems | Россия | | |
| 193 | Powerhouse Software | Великобритания | | |
| 194 | Powerplay | | Maynard International Ltd | | | | |
| 195 | PowerSoftware | Великобритания | | |
| 196 | Powertran Cybernetics | Великобритания | | |
| 197 | PR Software [1] | Великобритания | | |
| 198 | Practical Software | Великобритания | | |
| 199 | Precision Games | Великобритания | | |
| 200 | Precision Group | Беларусь | | |
| 201 | Precision Software Engineering |
| 202 | Predator Software | Чехия | | |
| 203 | Predatory Group | Россия | | |
| 204 | Preisler Industries | Польша | | |
| 205 | Premier Corp | Украина | | |
| 206 | Premier Corp. | Россия | | |
| 207 | Premier Software | Великобритания | | |
| 208 | Premium Software | | Power Software S.A. | | | | |
| 209 | Prentice-Hall International | | Pearson PLC | | | | |
| 210 | Prestel Tapezine | Великобритания | | |
| 211 | Prestige Group | Россия | | |
| 212 | Pricing Building Works | Великобритания | | |
| 213 | Pride Utilities | Великобритания | | |
| 214 | Prime Software | Великобритания | | |
| 215 | PrImer Educational Software | Великобритания | | |
| 216 | Primitive Software | | | |
| 217 | Primosoft | Нидерланды | | |
| 218 | PrimyGames | | | |
| 219 | Print'n'Plotter Products Ltd | Великобритания | | |
| 220 | Prism Leisure Corporation PLC | Великобритания | | |
| 221 | PRISM Micro-informatique S.A. | Франция | | |
| 222 | Prisma Software | Великобритания | | |
| 223 | Prisoners | | | |
| 224 | Pro Hackers Dynasty | Беларусь | Минск | |
| 225 | Pro Soft | Россия | | |
| 226 | Probe Software Ltd | Великобритания | | |
| 227 | Proceeding Electronic System | Италия | | |
| 228 | Procom Software | Великобритания | | |
| 229 | Producciones Cicero S.A. | Испания | | |
| 230 | Productive Playtime | Великобритания | | |
| 231 | Proein S.A. | | | |
| 232 | Proein Soft Line | | Proein S.A. | | | | |
| 233 | Professional Software | Великобритания | | |
| 234 | Professional Software Users | Россия | | |
| 235 | Profisoft [1] | | Profisoft GmbH | | | | |
| 236 | Profisoft [2] |
| 237 | Profisoft GmbH | | | |
| 238 | Profsoft | Чехия | | |
| 239 | Program Direct | Великобритания | | |
| 240 | Program Factory | Великобритания | | |
| 241 | Program Power | Великобритания | | |
| 242 | Program Techniques | Великобритания | | |
| 243 | Programmers Group | Россия | Тула | |
| 244 | Progress | Россия | Москва | |
| 245 | Progress Software | Великобритания | | |
| 246 | Progress Software Makers Team | Россия | | |
| 247 | Progressive Distribution Ltd | | | |
| 248 | Project of Fire | Испания | | |
| 249 | Prollcoder | Германия | | |
| 250 | Prometeo | Италия | | |
| 251 | Propaganda Software |
| 252 | Prophecy | Беларусь | Минск | |
| 253 | Prophics Software | Чехия | | |
| 254 | PROSM Software |
| 255 | Prospect Software | Великобритания | | |
| 256 | Prospek Computing Coorperation | Германия | | |
| 257 | Prospero Software | Великобритания | | |
| 258 | Protek Computing Ltd | Великобритания | | |
| 259 | Proxima Centauri | Россия | Ковров | |
| 260 | Proxima Software | | Proxima Software Ltd | | | | |
| 261 | Proxima Software | Чехия | Усти-над-Лабем | |
| 262 | Proxima Software Ltd | | | |
| 263 | Prune Software | Великобритания | | |
| 264 | Pryac Software | Великобритания | | |
| 265 | Psian Software Ltd | Россия | | |
| 266 | Psion Computers | | | |
| 267 | Psion Computing | | | |
| 268 | Psion PLC | | | |
| 269 | Psion Software Ltd | | Psion PLC | | | | |
| 270 | PSS | | Personal Software Services Ltd | | | | |
| 271 | Psy-Sci | Великобритания | | |
| 272 | Psychaedelic Hedgehog Software | | Andrey John Remic | | | | |
| 273 | Psychic Software | Великобритания | | |
| 274 | Psychosoft | Великобритания | | |
| 275 | Psyclapse | | Psygnosis Ltd | | | | |
| 276 | Psygnosis Ltd | | Sony Inc | | | | |
| 277 | Psytronik Software | | | |
| 278 | PTsoft | Испания | | |
| 279 | Puffin Books | | Penguin Books Ltd | | | | |
| 280 | Purple Studios | Испания | | |
| 281 | Purple Unicorn Software | | Steve Dixon | | | | |
| 282 | PVA-Soft | Россия | | |
| 283 | PW Marketing | Великобритания | | |
| 284 | PW Publishing Ltd | | IPC Magazines Ltd | | | | |
| 285 | Pyramid Software | Великобритания | | |
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