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| Paddy Power (16) | Paramount Recruitment (22) |
| PayPal (37) | Peer Executive (10) |
| PGi (9) | PHARM ENG LTD (70) |
| PHARMA-BIO SERV (8) | Pharma Bio Serv Ltd (12) |
| Pharma-BioServ Validation and Compliance Ltd (11) | Pharma Solutions (Recruitment) Limited (24) |
| PharmaConex Limited (10) | PopCap Games (5) |
| PORTMARNOCK HOTEL & GOLF LINKS (5) | Primus Personaldienstleistungen GmbH (6) |
| Principle HR (53) | Procter & Gamble (9) |
| Prosperity (54) | PROWORK (6) |