 PC Computing |
 PC Disk |
 PC Mag |
 PC Ready |
 PC Sig |
 PTI |
 Packard Bell |
 Parker Brothers |
 Parrot |
 Parsons Technology |
 Patech Software |
 Peachtree |
 Peripherals Plus |
 Personal Lines |
 Pfizer Roerig |
 Philips |
 Philips |
 Philips |
 Philips |
 Phoenix |
 Phoenix |
 Phoenix |
 Pitman Software |
 Pitney Bowes |
 Plainwrap |
 Plainwrap |
 Plainwrap |
 Plainwrap |
 Plus (1 comment) |
 PlusPackage |
 Pmi |
 Pmi |
 Polaroid (1 comment) |
 Polaroid (1 comment) |
 Polaroid |
 Polygon |
 Precision Software |
 Precision |
 Precision |
 Premier Gold |
 Prodigy |
 Profound |
 Protek |
 Proteon |
 Pspice |
 Pylon |
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