| Company | Industry | City |
| Pangaea Media & Music Inc. | Toronto | |
| Pangaea Media & Music | Toronto | |
| Parallel World Labs Inc. | ||
| pdf pictures | Toronto | |
| Peak Media International | Toronto | |
| Peregrine Net | Toronto | |
| Phantom Compass | Games | Toronto |
| Pink Press Triangle | Toronto | |
| Pixel - The Computer Animation News People | Toronto | |
| Pixel Gallery | Toronto | |
| Pixelcarve | Toronto | |
| Planetcast Presentations Inc. | Toronto | |
| Plastic Mobile | Toronto | |
| Plastic. The Mobile Agency | Mobile | Toronto |
| Playbrains, Inc. | Toronto | |
| Plum Communications Inc | Thornhill | |
| PodChannels | Toronto | |
| Podzapper Inc | Toronto | |
| polar unlimited | burlington | |
| Pollington Productions Inc. | Burlington | |
| Principle Inc. | Richmond Hill | |
| Profectio | Toronto | |
| Provinent (VitesseLearning) | Toronto | |
| Provinent Corporation | Toronto | |
| Pseudo Interactive Inc. | Toronto | |
| Ptolemaic Systems Group Inc. | Stouffville | |
| Public Institute Ltd | Ottawa | |
| PUMP Audio | Toronto | |
| Purefire Communications | Toronto | |
| Pyman Media Group | Mississauga |