| Adveris | |
| Adverline | Paris |
| Advertis S.A.R.L. | Vosges |
| Advesya | |
| Advicenne S.A. | |
| Advisa.fr | Bas-Rhin |
| AdviseMe | |
| Advisto S.A.S. | Loire-Atlantique |
| ADvisuel | Haute-Garonne |
| Advize | |
| ADW Concept & Gestion | Bas-Rhin |
| ADW Network | Métropole de Lyon |
| Adways | Paris |
| Adwi | |
| Adwin | Gard |
| Adyouneed | |
| AE-Gestion | Calvados |
| AEL groupe | Loire |
| Aelis Farma | |
| Aenitis Technologies | |
| AeonX AI S.A.S. | |
| AEP Informatique | Bouches-du-Rhône |
| Aepsilon | Alpes-Maritimes |
| Aerial Coboticus S.A.S. | |
| Aero Negoce International | |
| Aérodynamique Eiffel | |
| Aeromapper | |
| Aerospace Cluster Auvergne-Rhône-Alpes | |
| Aerospace Valey | Haute-Garonne |
| Aerotec & Concept | |
| Aerow | |
| AETInformatique | Seine-et-Marne |
| AFC-Informatique | Paris |
| AFD Tech | |
| AFELIM - Association française de l'électronique imprimée | |
| Affilae | Gironde |
| Affilogic | |
| AffLight | Calvados |
| Affluences | |
| Affluent Medical S.A. | |
| AFI S.A. | Seine-et-Marne |
| AFI-PL | Loire-Atlantique |
| AFIB | Gironde |
| AFIMÈS | Essonne |
| AFINEF | |
| AFJV | Paris |
| Afnic | Yvelines |
| Afone Participations S.A. | Maine-et-Loire |
| Aforia | Hauts-de-Seine |
| AformaIT | Alpes-Maritimes |