| 2019 | 3 Arroyos S.A. |
| 2019 | 360 ENERGY - ADMINISTRACION PRAEDA |
| 2019 | 474 HOTEL |
| 2019 | 48M2 S.A. |
| 2019 | A. G. PRUDEN S.A. |
| 2019 | A. Ropelato srl |
| 2019 | A.D. BARBIERI S.A. |
| 2019 | AACREA |
| 2019 | ABAC S.R.L |
| 2019 | ABASTO SHOPPING |
| 2019 | ABB |
| 2019 | ABBOTT LABORATORIES |
| 2019 | ABELSON S.A. |
| 2019 | ACA - INTENDENCIA |
| 2019 | Aca Salud Coop. |
| 2019 | Academia Cultural Inglesa Devoto SA |
| 2019 | ACADEMIA NACIONAL DE MEDICINA |
| 2019 | ACCENTURE |
| 2019 | Acerbrag S.A. |
| 2019 | ACEROS COFER |
| 2019 | ACEROS CORONA S.R.L. |
| 2019 | ACHERNAR SATO ARGENTINA |
| 2019 | ACSUR S.A. |
| 2019 | ACTION TRAVEL S.A. |
| 2019 | ACTIVE COSMETIC |
| 2019 | ADAMA SA |
| 2019 | ADEBA - ASOCIACION DE BANCOS |
| 2019 | ADECCO ARGENTINA S.A. |
| 2019 | ADECOAGRO |
| 2019 | ADIF SE |