| 2018 | SODIMAC |
| 2018 | SOKA GAKKAI |
| 2018 | SOL KLING BRAVERMAN |
| 2018 | SOLETANCHE BACHY ARGENTINA SA |
| 2018 | SOLIS CANO (EX AUTOPISTAS GEA 8) |
| 2018 | SOLUCIONES MRO |
| 2018 | SOLUCIONES TURISTICAS - TRIPTOP |
| 2018 | SOLVENS S.A. |
| 2018 | Someco Electronics s.a. / First Rate s.a. |
| 2018 | SONY MUSIC ARGENTINA |
| 2018 | SOS SA |
| 2018 | SPIRAX SARCO |
| 2018 | ST MARGARET S SCHOOL |
| 2018 | STAPLES |
| 2018 | Startex |
| 2018 | STEEL PLASTIC SA |
| 2018 | STENFAR S.A.I.C |
| 2018 | STILO WG SRL |
| 2018 | STIVALE S.A. |
| 2018 | STRAKA |
| 2018 | STRAPLAS S.A. |
| 2018 | Stur - Mones Ruiz |
| 2018 | SUBASTAS DE ARTE - ROLDAN S.R.L. |
| 2018 | SUBSECRETARIA DE MEDIO AMBIENTE Y DESARROLLO SUSTENTABLE DE MERLO |
| 2018 | SUBSECRETARIA DE TRABAJO, INDUSTRIA Y COMERCIO GCBA |
| 2018 | SUBSECRETARIA DE TRANSPORTE - RIO GALLEGOS |
| 2018 | SUCMA |
| 2018 | SUEÑO FUEGUINO S.A. |
| 2018 | SUIZO ARGENTINA S.A. |
| 2018 | SUOLA S.A. |