| Name | Country | City | Rating | |
|---|---|---|---|---|
| PMS Data | 0.00 ±0.0 | |||
| PMSoft | 0.00 ±0.0 | |||
| PMT | 0.00 ±0.0 | |||
| Pocket Books | United States | New York | 0.00 ±0.0 | |
| POKEY | Poland | 0.00 ±0.0 | ||
| Pokey Soft | Norway | 0.00 ±0.0 | ||
| Pollard's Software Creations | 0.00 ±0.0 | |||
| Popmilo | Serbia | 0.00 ±0.0 | ||
| Popular Computing Weekly | 0.00 ±0.0 | |||
| Portland Atari Club | 0.00 ±0.0 | |||
| Positive Input | 0.00 ±0.0 | |||
| PowerSoft, Inc. | 0.00 ±0.0 | |||
| PPP | 0.00 ±0.0 | |||
| PPR | 0.00 ±0.0 | |||
| PPSW | 0.00 ±0.0 | |||
| PR Soft | 0.00 ±0.0 | |||
| PR Software | 0.00 ±0.0 | |||
| Practical Computing | 0.00 ±0.0 | |||
| Prehistoric Programs | 0.00 ±0.0 | |||
| Prentice-Hall, Inc. | United States | New York | 0.00 ±0.0 |
