| 2003 | OIL TANKIN |
| 2003 | ORBIS MERTIG SAIC |
| 2003 | ORGANFUR S.A. |
| 2003 | ORGANIZACION LEVIN |
| 2003 | ORGANIZACION TECHINT |
| 2003 | ORGANIZACION TECHINT S.A DIVISION TELECOMUNICACIONES (TESUR) |
| 2003 | ORIGENES |
| 2003 | OSDEPYM |
| 2003 | OSECAC |
| 2003 | OSIM |
| 2003 | OSTEL - OBRA SOCIAL DEL PERSONAL TELEFONICO |
| 2003 | OXY NET S.A. |
| 2003 | P.R.O |
| 2003 | PAGINA 12 |
| 2003 | PAGO FACIL |
| 2003 | PAMI - RECURSOS FISICOS |
| 2003 | PAMI PERU |
| 2003 | PAMPA ENERGIA |
| 2003 | PAMPA ENERGIA - DOCK SUD |
| 2003 | PAN AMERICAN ENERGY |
| 2003 | PAPELERA ORLANDO |
| 2003 | PARTICULAR - AINCHIL SILVIA |
| 2003 | PARTICULAR - ALBERTELLI HECTOR DARIO / PISSU ROLANDO / PISSU WALTER Y COMPANEROS |
| 2003 | PARTICULAR - Almilcar San Salvador |
| 2003 | PARTICULAR - ALVAREZ MARTA |
| 2003 | PARTICULAR - ARIGUTTI AIDA |
| 2003 | PARTICULAR - Badizzuck Juan |
| 2003 | PARTICULAR - Bianchetti Juan Jose |
| 2003 | PARTICULAR - Biasotti Rosita / Carralsa Elsida |
| 2003 | PARTICULAR - BONINI NORA |