| Akalmie | Bas-Rhin |
| Akaru | |
| Akeneo | Loire-Atlantique |
| Akio | Paris |
| Akisiweb | Paris |
| Akori | Savoie |
| Akoya Group | |
| Aktan | |
| AKTANTIS | Bouches-du-Rhône |
| Akticom | Haute-Garonne |
| Aktio | |
| AKTO | |
| Akuiteo | |
| AKUR8 | |
| Akuter Technologies S.A.R.L. | Rhône |
| Akyos | |
| Akyos Communication | Côte-d'Or |
| Alacrité France | |
| Aladom | |
| Alamosoft | |
| Alan | Paris |
| Alawar | Paris |
| Alaxione | |
| Alaya.bio | |
| Albert Hofmann | Côte-d'Or |
| Albinet | |
| Albus | |
| ALC Informatique | Val-de-Marne |
| Alcatel Submarine Networks | |
| Alcea | Essonne |
| Alchemy | Paris |
| Alciom | Yvelines |
| Alcom | Alpes-Maritimes |
| Alcuin | Maine-et-Loire |
| Alcyon Électronique | Yvelines |
| Alderaan Biotechnology | |
| Aledia | Isère |
| Alegria.group | |
| Aleia | |
| Aleph.im | |
| Alesia Communications S.A.R.L. | |
| Aletiq | |
| Alex Legal | |
| Alexander Hughes | |
| Alexandre Nédélec | |
| Alexandre Poulet | Paris |
| Aleysia | |
| Alfa-safety | Loire-Atlantique |
| ALFI | Hauts-de-Seine |
| Alfonsi Network | Corse-du-Sud |