| 1H2O3 |
| 2PA |
| 3D EAU |
| A-CONSULT |
| ABB FRANCE |
| ABLOY |
| ABRITEC |
| ACO |
| ACTEMIUM |
| ACTIV RESO / GEO |
| ACTU-ENVIRONNEMENT |
| ACWA ROBOTICS / VILLAGE INNOVATION |
| ADG EAU |
| ADM CONSEIL |
| ADRÉ RÉSEAUX |
| AEOS |
| AERZEN RENTAL SOLUTIONS |
| AFITEXINOV |
| AGENCE DE L'EAU LOIRE BRETAGNE |
| AGRI TUBE EXTRUSION ATE |
| ALGAVI EAUX |
| ALIAXIS |
| ALKERN/VILLAGE BETON |
| ALTEREO |
| ALZEO ENVIRONNEMENT OUEST |
| AMIBLU |
| AMORCE |
| AOTEC Etudes et Conseil |
| APEI |
| API.PLASTIQUES |
| APPCB |
| AQUA-VALLEY / VILLAGE INNOVATION |
| AQUALABO |
| AQUALIA |
| AQUAPURE |
| AQUASCOP |
| AQUASENTRY |
| AQUASSYS |
| AQUASYS |
| AQUATIRIS |
