| Finceptiv OÜ | |
| FinestMedia OÜ | Harju |
| Fintellect | |
| FivexL | |
| Fixtura Web Design | Harju |
| Flawless Group | |
| Flawless Group | |
| Fleep Technologies OÜ | Harju |
| FleetFox | |
| FleetGuru OÜ | |
| FLEX Sülearvutikeskus | Harju |
| FOB Solutions | |
| Fontakt OÜ | |
| Foodee, Inc. | Harju |
| Forma Pro | |
| Fortify OÜ | Harju |
| Fortumo | Harju |
| Forum.ee | Harju |
| FoxSec | Harju |
| Frankenburg Technologies OÜ | |
| Friedegggames OÜ | |
| Fully-Verified | |
| FundRequest OÜ | |
| FuseBox OÜ | |
| Gaiasoft OÜ | |
| GaltTec OÜ | |
| GameFounders | Harju |
| Ganttic, LLC | Harju |
| Garage48 | Harju |
| Garage48 Foundation | Harju |
| Gearbox Biosciences OÜ | |
| Gelatex Technologies | |
| Geosoft OÜ | |
| Gepard | |
| Germandia OÜ | Harju |
| GetCode | |
| Getpin OÜ | |
| GIG Service OÜ | Harju |
| Girf | Harju |
| GlobalReader | Tartu |
| GMA Consult Group | Harju |
| GoBoutique | Harju |
| Golems G.A.B.B. OÜ | Harju |
| GoMedia OÜ | |
| GPO-Tech | |
| Grünfin AS | |
| Guardarian OÜ | |
| H-Studio | |
| Haberst Infra | Harju |
| Hacken | |