| OrangeApps, Inc. | Metro Manila |
| Orcestra, Inc. | |
| Our Lady of Fatima University | |
| Outsource I.T. to the Philippines | Davao del Sur |
| Packworks | Metro Manila |
| Palompon Institute of Technology | |
| Pamantasan ng Lungsod ng Maynila | |
| Pampanga State Agricultural University | |
| Pangasinan State University | |
| Panpacific University | |
| Paperless Trail, Inc. | Metro Manila |
| Partido State University | |
| Pasig Catholic College | |
| PATTS College of Aeronautics, Inc. | |
| PayMongo | Metro Manila |
| Payo | Metro Manila |
| PBCOM | Metro Manila |
| PC Bodega | Metro Manila |
| PC Express | Metro Manila |
| PDAX | Metro Manila |
| PearlPay, Inc. | |
| PesoPay | Metro Manila |
| Phil-Am Outsourcing Solutions, Inc. | Cebu |
| PhilDomain.Com | Metro Manila |
| Philippine Association of Colleges and Universities | |
| Philippine Business Bank | Metro Manila |
| Philippine Christian University | |
| Philippine College of Criminology | |
| Philippine Merchant Marine Academy | |
| Philippine Software Industry Association | Metro Manila |
| Philippine Space Agency | Metro Manila |
| Philippine Tech Community | Metro Manila |
| Philippine Veterans Bank | |
| Philippine Women's University | |
| Philippines Online | Metro Manila |
| PhilOnline | Metro Manila |
| Philtrust Bank | |
| Philwebservices, Inc. | Cebu |
| Phinma Education | |
| PHIX Genomics | Metro Manila |
| Pinoy SEO | |
| Pixel Media, Inc. | Metro Manila |
| Pixel8 Corporation | |
| PLDT | Metro Manila |
| PLDT, Inc. | |
| Pointwest Technologies Corporation | Metro Manila |
| Polytechnic University of the Philippines | Metro Manila |
| Polytechnic University of the Philippines - College of Computer and Information Sciences | Metro Manila |
| President Ramon Magsaysay State University | |
| Prime Software | Cebu |