| Dassault Systèmes | Yvelines |
| Data 4 Services | Paris |
| Data Factory | |
| Data Impact | |
| Data Legal Drive | |
| Data Micro Systems | Métropole de Lyon |
| Data Recrutement | |
| Data ScienceTech Institute | Paris |
| Data Swing | |
| Data Syscom | Sarthe |
| Data Vision Systems S.A.R.L. | Nord |
| Data.gouv.fr | Paris |
| Datacapt | |
| Datacube | |
| Dataexis | |
| Dataflow Engineering | Var |
| DataFolio | |
| Datafuse | |
| DataGalaxy | |
| Datagates | Paris |
| DataHawk | |
| Dataïads | |
| Datakili | |
| Datakit | |
| DATALP Groupe | Haute-Savoie |
| Datamedcare | |
| Datametric | Yvelines |
| Datanalyse | |
| Datananas | |
| Dataneo | |
| Datapole | |
| Dataprint | Paris |
| Dataquitaine | Gironde |
| Datarox | |
| Datavenir | Haute-Savoie |
| Dataveyes | |
| DataVLab | |
| Datawords | |
| Datexim | |
| Datronic | Val-de-Marne |
| Datso Gallery | Bas-Rhin |
| Dattak S.A.S. | |
| DavAgency | |
| Davai | |
| Daveo | |
| DAVI | Essonne |
| David Groult | Nord |
| David Telecom | Haute-Savoie |
| David-webdesigner.fr | Yvelines |
| Davidson | |