| Name | Region |
|---|---|
| YouStock | |
| YouzWeb | Nord |
| YperLine | Nord |
| Yposkesi S.A.S. | |
| Ypso-Facto | |
| ysalid | Val-d'Oise |
| Yseop | |
| YSOPIA Bioscience | |
| YT Copycat | |
| YTY | |
| Yubo | |
| Yumens | Ille-et-Vilaine |
| Yuto | |
| Yuzzit | |
| Yzi | Oise |
| Yziprod | Métropole de Lyon |
| YZR | |
| Zack S.A.S. | |
| Zaclys | |
| Zadient Technologies S.A.S. | |
| Zaion | |
| ZALIX Biométrie | Seine-Saint-Denis |
| Zama S.A.S. | |
| Zanteris | |
| Zapilou | Isère |
| Zapsolution | Isère |
| Zataz | Nord |
| ZBO Media | Paris |
| ZDNet France | Hauts-de-Seine |
| ZE Company | Loiret |
| Ze Energy | |
| Ze-Watt | |
| ZEBITEX | |
| Zebulon | Alpes-Maritimes |
| Zeden.net | Paris |
| Zee Media | |
| Zeenea | |
| Zefir | |
| Zefyr S.A. | Yvelines |
| ZeMust | |
| Zen Studio de créations graphiques | Bouches-du-Rhône |
| Zenaton | |
| Zenbus | |
| ZenCall | |
| Zenchef | Paris |
| Zenconnect | |
| Zenetys | |
| Zenika S.A.S. | Paris |
| ZeNiTHaR'z BLoG | Paris |
| Zenly |