| ABB FRANCE |
| ABLOY |
| ABRITEC |
| ACO |
| ACTEMIUM |
| ACTU-ENVIRONNEMENT |
| ACWA ROBOTICS / VILLAGE INNOVATION |
| ADG EAU |
| ADM CONSEIL |
| ADRE RESEAUX |
| AEOS EAU POTABLE |
| AERZEN RENTAL |
| AGENCE DE L'EAU RHÔNE MÉDITERRANÉE CORSE |
| AGM TEC |
| AGRU FRANCE |
| ALGAVI EAUX |
| ALIAXIS |
| ALKERN / Village Béton |
| ALL PRODUCTS |
| ALTEREO |
| ALTERO |
| ALZEO ENVIRONNEMENT |
| AMIBLU |
| ANDRITZ |
| AOTEC |
| APEI |
| API PLASTIQUES |
| APPCB |
| AQSEPTENCE GROUP |
| AQUA-VALLEY / France Water Team |
| AQUALABO |
| AQUASCOP |
| AQUASYS |
| AQUASYS-HST |
| AQUATIRIS |
| AQUATURBO SYSTEMS (AQUASYSTEMS INTERNATIONAL) |
| ARCUS INOX |
| AREAL-TOPKAPI |
| AREHA |
| ARS BRETAGNE |
