| Genilogic | Nord |
| Géniop | Nord |
| Genious Interactive | Ille-et-Vilaine |
| Genitech | Val-d'Oise |
| Genius Commerce | |
| Genius Talent | |
| GenMyModel | Nord |
| Genomic Vision | |
| Genopole | |
| GenoSafe | |
| GenoSafe | |
| Genoscience Pharma | |
| GenoScreen | |
| Genoskin | |
| GenOuest BioInformatics Platform | Paris |
| genOway | |
| GenSensor | |
| GenSight Biologics | |
| Gentibus CD | Métropole de Lyon |
| Genymobile | Paris |
| Genymobile S.A.S. | |
| Geo.RM | Vienne |
| GEO4CAST | |
| Geoconcept S.A.S. | Hauts-de-Seine |
| GeoConnect | Moselle |
| Geoffrey Pin | Hauts-de-Seine |
| Geoflex | |
| Géolane | |
| Geolid S.A.S. | Métropole de Lyon |
| Geoloc Systems | |
| Géomag | Seine-Saint-Denis |
| Géomatika | Pyrénées-Atlantiques |
| Geomedia | Finistère |
| Geomod | Finistère |
| Géoperspectives | |
| Geoptis | |
| GeoRide | |
| Geotek | Moselle |
| Geotrend | |
| Geovelo | |
| Gepix | Haut-Rhin |
| GER Systèmes | Paris |
| Gérard Perrier Industrie | Rhône |
| Gercop | Seine-Saint-Denis |
| Gérerseul.com | Paris |
| Geri-Communication | Gironde |
| Gest'Help | Paris |
| GESTEC | |
| Gestimum | Yvelines |
| Gestion De La Paie.com | Paris |