| Adelysnet | Gironde |
| Adenis | |
| Adenium | |
| Adenora | Bas-Rhin |
| Adentis | Hauts-de-Seine |
| Adequate Communication | Loire-Atlantique |
| Ader Finance | |
| Adera | |
| Adergo | Paris |
| ADES | Haute-Garonne |
| ADEsoft | Paris |
| Adeunis | Isère |
| Adex Électronique | Ille-et-Vilaine |
| Adexcom | Paris |
| Adexos | Nord |
| ADF Référencement | Gironde |
| ADF Systèmes | |
| ADF.net | Hérault |
| Adfinitas | |
| ADG Soft | Métropole de Lyon |
| adhara France | Loiret |
| Adhex Pharma S.A.S. | |
| Adi 16 | Charente |
| ADIC Info | Alpes-Maritimes |
| Adicom | |
| Adictiz S.A.S. | Nord |
| Adikteev | |
| Adilade | Vosges |
| Adilis | |
| Adimeo | Paris |
| Adines | Yvelines |
| ADIP2 | Loire-Atlantique |
| Adipso | Bas-Rhin |
| Adison | Savoie |
| Adista | Meurthe-et-Moselle |
| ADIT Technopole Anticipa | |
| Aditel | Paris |
| Aditi | Nord |
| Adjuvatis | |
| Adler Technologies | |
| Adloop | |
| ADM-PC | Ille-et-Vilaine |
| Adm21 | Hauts-de-Seine |
| AdmanTIC | |
| Admicom | |
| ADN Ouest | Loire-Atlantique |
| ADN PROG | Haute-Savoie |
| ADNET | Marne |
| Adnovae Conseil et formation webmarketing | Isère |
| AdnPix | Manche |