| Name | Region |
|---|---|
| Weelogic Brocéliande | Ille-et-Vilaine |
| Weenat | |
| Weevup | |
| Weezevent | |
| Weezual | Jura |
| Wefight | |
| Weglot | |
| Welcome by Lila | |
| Welcome to the Jungle | |
| Welcomeurope | |
| Weliom | |
| Wellcom | Paris |
| Wellpack | Val-de-Marne |
| WeLoveDevs.com | |
| Welyb | |
| WeMaintain | |
| Wemap S.A.S. | |
| WendelGroup | |
| Weproc | |
| Werkstatt | |
| Wertronic | Paris |
| WES'SUP | |
| WeSave | |
| West Web Valley | Finistère |
| West-WebWorld | Loire-Atlantique |
| WESTcom | Morbihan |
| Westpoint | Paris |
| Wever S.A.S. | |
| WeWard | |
| Wewebcom | |
| WEXIM | Paris |
| Wexlog Technologies | Paris |
| Whaly | |
| WHAT (games) | |
| Whatson Web | Nord |
| Whispeak | |
| WhiteLab Genomics | |
| Whodunit | |
| Whoz | |
| Wibby | |
| Wiconnect | Orne |
| WiDiD | |
| Wifirst | Paris |
| Wifiz | |
| WIIO | |
| WiiSmile | |
| WiiZone | Gard |
| WIKO | |
| Wilab Technology | Métropole de Lyon |
| WILCO | Paris |