| Name | Region |
|---|---|
| ZDNet France | Hauts-de-Seine |
| ZE Company | Loiret |
| Ze Energy | |
| Ze-Watt | |
| ZEBITEX | |
| Zebulon | Alpes-Maritimes |
| Zeden.net | Paris |
| Zee Media | |
| Zeenea | |
| Zefyr S.A. | Yvelines |
| ZeMust | |
| Zen Studio de créations graphiques | Bouches-du-Rhône |
| Zenaton | |
| Zenbus | |
| Zenchef | Paris |
| Zenconnect | |
| Zenetys | |
| Zenika | Paris |
| ZeNiTHaR'z BLoG | Paris |
| Zenly | |
| Zenpark | Paris |
| Zento | |
| Zephyre | |
| Zeplug | |
| Zéro-Gâchis | |
| Zetoolbox | |
| Ziggourat Formation | Paris |
| Zillion Pulse | Paris |
| Ziwig | |
| Ziwit | |
| Zodiac Milpro | |
| Zoftware | Paris |
| ZOL | Métropole de Lyon |
| Zolo | |
| Zone ADSL | Paris |
| ZOOMICI | |
| Zozio | |
| Zsphere | |
| ZTI Communications | Côtes-d'Armor |
| ZW France | Indre-et-Loire |
| ZypZap | Paris |
| Zyvon | Paris |
| ZyXEL France | Métropole de Lyon |
| [IDnum] | Paris |