| ESPA Systems Oy | |
| Esri Finland | |
| eSystems Nordic Oy | |
| Ethena | |
| Euformatics | |
| European Games Developer Federation | Uusimaa |
| European Mathematical Society | |
| EVA Global | |
| Evac | |
| Evermade | |
| Evli | |
| Exomi | Uusimaa |
| Exove | |
| Experimentica Ltd | |
| Extreme Consulting Ltd | |
| F-Secure Corporation | Uusimaa |
| FabricAI Oy | |
| FADS | |
| Fairdata | |
| FancyGrid, Inc. | |
| Faron Pharmaceuticals Ltd | |
| FCG Finnish Consulting Group O | |
| Feedbackly | |
| Fepod | |
| Fermion Oy | |
| Ferrit | |
| FF-Automation Oy | Uusimaa |
| Ficix | Uusimaa |
| FiCom ry | Uusimaa |
| Fidelix Oy | |
| FinanceKey | |
| Financial Supervisory Authority | |
| Fingersoft Ltd | |
| Fingertip | Uusimaa |
| Finnet-liitto ry | Uusimaa |
| Finnish Business Angels Network | Uusimaa |
| Finnish Fintech Ecosystem | |
| Finnish Linux User Group FLUG ry | Uusimaa |
| Finnish Society of Automation | Uusimaa |
| Finnsat Oy | South Ostrobothnia |
| Finnvera Oyj | |
| Fintech Finland | |
| FinVector Oy | |
| First Round Ltd | |
| Firstpick | |
| Fixura Ab Oy | |
| Flow Computing | |
| Flowhaven Oy | |
| Fonecta Caller | |
| Forex AB | |