| Forvio, s.r.o. | |
| Foundation, s.r.o. | Bratislava |
| FreeNETsk, s.r.o. | |
| Freeserver | Bratislava |
| Frio Media, s.r.o. | Trenčín |
| Fuergy | |
| Fuergy | |
| Fumbi Network j. s. a. | |
| FutureNow, s.r.o. | |
| Futurista Projects | |
| Futurum, s.r.o. | |
| G-comp, s.r.o. | Košice |
| G4 Investments | |
| G4 Investments | |
| GA Drilling, a.s. | |
| Game Platforma, s.r.o. | |
| GAMO, a.s. | Banská Bystrica |
| Gaya, s.r.o. | Žilina |
| GeCom, s.r.o. | Košice |
| Gemtech, s.r.o. | |
| Gettpal, s.r.o. | |
| Glycanostics, s.r.o. | |
| Gnome | Bratislava |
| Golden Gates, s.r.o. | |
| GOPAS SR, a.s. | Bratislava |
| Gordias, s.r.o. | Bratislava |
| Gospace Tech | |
| GPS NTP | Bratislava |
| Gratex International, a.s. | Bratislava |
| Green Energy Slovakia, s.r.o. | |
| Green Mushroom | Bratislava |
| GreenWay Infrastructure, s.r.o. | |
| GREXOFT, s.r.o. | Košice |
| GSM Servis | Banská Bystrica |
| GSoft-Group, a.s. | |
| GSW, s.r.o. | Žilina |
| Guldan-Studio, s.r.o. | |
| Gurkuda, s.r.o. | |
| Gust | |
| Hardsun Digital Hub | Košice |
| HealthCare Lab | |
| Heico, spol. s r.o. | Trnava |
| Helixsoft | Prešov |
| Heso Com, s.r.o. | Trnava |
| Hilbi Health, s.r.o. | |
| HMH, spol. s r.o. | |
| Hofitech Ltd | |
| Holdy Software | Bratislava |
| Host.sk | Bratislava |
| host2u.sk | Nitra |