| Price Is Right Computers | British Columbia |
| Pricedex Software, Inc. | Ontario |
| Priceless Efficiency | |
| PricelinePartnerNetwork.com | Manitoba |
| Prilink | Ontario |
| PRIM Logix | |
| Prima Design | British Columbia |
| Prima Information SOlutions | Newfoundland and Labrador |
| PRIMA Québec | |
| Primacorp Ventures, Inc. | |
| Primal | |
| Primal Fusion, Inc. | Ontario |
| Primal Technologies, Inc. | |
| Primal Tribe | Alberta |
| Primalogik Solutions Logicielles, Inc. | Quebec |
| Primary Computer, Inc. | Alberta |
| Primary Peptides, Inc. | |
| Primary Support Systems, Inc. | Ontario |
| Primary Technologies | Ontario |
| PrimaSoft PC, Inc. | British Columbia |
| Primate Labs | Ontario |
| Prime Communications | Ontario |
| Prime Communications Ltd | Alberta |
| Prime Computer Services & CMB Investments, Inc. | Alberta |
| Prime Mover Controls, Inc. | British Columbia |
| Prime Stratix | |
| PrimeHost.ca | Ontario |
| PrimeImage Technologies | British Columbia |
| PrimeObjects Software, Inc. | British Columbia |
| Primetek IT Solutions, Inc. | British Columbia |
| PrimeWeb | Ontario |
| Primex Telecommunications | British Columbia |
| Primodal | Ontario |
| Prince Albert Electronics | |
| Prince Albert Photocopier | Saskatchewan |
| Prince Edward Island BioAlliance | Prince Edward Island |
| Principle | Ontario |
| Print Infinity Consulting Ltd | Ontario |
| Print Web Design | Ontario |
| Printemps numérique | Quebec |
| Printer Doctor | |
| Printer Works | |
| Printer World International, Inc. | Alberta |
| Printer's Parts & Equipment | Ontario |
| Printers Plus | British Columbia |
| PrintersPlus | Ontario |
| Prior Solutions | |
| Priority 1 | British Columbia |
| Prism Data Services | Ontario |
| Prism Instruments | Ontario |