| 2005 | SAACKE ROSSPLET |
| 2005 | SAD MITEC |
| 2005 | SADAIC |
| 2005 | SADESA SA |
| 2005 | SAINT BEAT S.A. |
| 2005 | SAIZ CAPUTO Y CIA SA |
| 2005 | SAN ELISEO |
| 2005 | SAN JOAQUIN SCHOOL |
| 2005 | SANTA CRUZ - RIO GALLEGOS - Del Tribunal Superior de Justicia |
| 2005 | SANTANDER |
| 2005 | SAP |
| 2005 | SAPORITI HERMANOS - RR HH |
| 2005 | SAPUTO ARG - MOLFINO HNOS |
| 2005 | SATHYA |
| 2005 | SAULER |
| 2005 | SCHENKER ARGENTINA SA |
| 2005 | SCHNEIDER ELECTRIC ARGENTINA |
| 2005 | SEALED ARGENTINA |
| 2005 | SEBAMAX |
| 2005 | SEC |
| 2005 | SECRETARIA DE EDUCACION DEL GOB.CDAD. |
| 2005 | SECRETARIA ELECTORAL |
| 2005 | SECRETARIAS Y NEGOCIOS S.A |
| 2005 | SEDRONAR |
| 2005 | SEGURIDAD INTERCONTINENTAL |
| 2005 | SEHOS S.A. |
| 2005 | SELF CONSULTORA |
| 2005 | SENASA |
| 2005 | SENOR TANGO |
| 2005 | SERES |