| ID | Name | Type |
|---|---|---|
| #11695 | Prune Software | Z |
| #11696 | Prusak | ? |
| #11697 | Pryac Software | Z |
| #11698 | Psi-Co | ? |
| #11699 | Psian Software Ltd | Z |
| #15989 | Psientific Software | Z |
| #11700 | Psion Computers | Z |
| #16029 | Psion Computing | P |
| #11701 | Psion PLC | Z |
| #11702 | Psion Software Ltd | Z |
| #11703 | Psy-Sci | Z |
| #11704 | Psychaedelic Hedgehog Software | Z |
| #20485 | Psychic Parrot | P |
| #11705 | Psychic Software | Z |
| #11706 | Psychosoft | Z |
| #11707 | Psychotron | ? |
| #11708 | Psyclapse | P |
| #11709 | Psygnosis Ltd | P |
| #19508 | Psykosis Soft | - |
| #18495 | Psytronik Software | Z |