| PatientCompanion | |
| PatientSERV Corporation | Ontario |
| PatientSites.com | Ontario |
| Patio | British Columbia |
| Patrick Tremblay Multimédia | |
| Patriot One Technologies, Inc. | Ontario |
| Pattern Discovery Technologies, Inc. | Ontario |
| Paul D Hibbitts | British Columbia |
| Paul De Koninck Lab | |
| Paul Macnamara | Ontario |
| Paul S. Adler and Associates | Ontario |
| Pause Productions, Inc. | Ontario |
| Pavemetrics | |
| Pavliks.com | Ontario |
| PawPrint.net | British Columbia |
| Pax8, Inc. | |
| Paxyl Solutions | |
| PayByPhone | |
| PayFacto, Inc. | |
| Payfare, Inc. | Ontario |
| Payfi, Inc. | |
| Payfirma Corporation | British Columbia |
| Payless Cartridge Solutions, Inc. | |
| PAYMATE Software Corporation | Ontario |
| Payment Source, Inc. | |
| PaymentEvolution Corporation | Ontario |
| Payments Canada | Ontario |
| PayProp | |
| Payran Systems, Inc. | |
| Payras Software | |
| Payroll Guardian International, Inc. | |
| Paysend CA Ltd | |
| PayShepherd | |
| Paystation, Inc. | Ontario |
| Paystone | |
| PayTic | |
| Paytm Labs | Ontario |
| PB Web Solutions Ltd | British Columbia |
| PBB Systems | Alberta |
| PBfund.com, Inc. | British Columbia |
| PBNJ Consulting, Inc. | Ontario |
| PBNJ Consulting, Inc. | |
| PC Blues, Inc. | Ontario |
| PC Butler Computer Repair & Service | |
| PC Butler Computer Services | New Brunswick |
| PC Camp | |
| PC Canada, Inc. | Ontario |
| Pc Click | Ontario |
| PC Computer Cleaning, Inc. | Alberta |
| PC Consulting Group | |