| PALPsygnosis | Publisher | |
| PAM Development | Developer | |
| PAN Vision | DeveloperPublisher | |
| PANDAKO | Developer | |
| PAW Software (Tony Adams, Tony Porter) | Developer | |
| PB&Jelly | Developer | |
| PB&JoyGames | Developer | |
| PBS Interactive Media | Developer | |
| PC Arcade | Developer | |
| PC Design Associates | Developer | |
| PC Gamer | Publisher | |
| PC Globe | Publisher | |
| PC Research Inc. | DeveloperPublisher | |
| PCHK Studios | Developer | |
| PCM Complete | Publisher | |
| PCM Complete JP | Publisher | |
| PCM CompleteJP | Publisher | |
| PCNONOGames | Developer | |
| PCSL Software | Developer | |
| PCT | Publisher | |
| PCatGames | Developer | |
| PCista | Developer | |
| PD | DeveloperPublisher | |
| PD Design Studio | DeveloperPublisher | |
| PDI Check | Publisher | |
| PDRRook | Developer | |
| PES Productions | Developer | |
| PF Magic | DeveloperPublisher | |
| PFTupina | Developer | |
| PG2018 | Developer | |
| PG311 | Developer | |
| PGray | Developer | |
| PGtheVRguy | Developer | |
| PHDemercianjr | Developer | |
| PHL Collective | DeveloperPublisher | |
| PHLiM2 Games | Developer | |
| PICTOCHIC | Developer | |
| PID Publishing | Publisher | |
| PIEMEN | Developer | |
| PIGEON GIRL | Developer | |
| PIL | DeveloperPublisher | |
| PITR | Developer | |
| PIXbits | Developer | |
| PIZZAPRANKS | Developer | |
| PIndustries | Developer | |
| PJ Perretta | Developer | |
| PJ Soft | DeveloperPublisher | |
| PJimmyB | Developer | |
| PKGames | Developer | |
| PKLucky | Developer | |