| Euro View Services S.A. | Hainaut |
| Eurocircuits N.V. | Antwerp |
| Eurogentec | |
| EuroISPA | Brussels-Capital |
| Europabank S.A. | East Flanders |
| European Commission - Digital Single Market | Brussels-Capital |
| European Cyber Security Month | |
| European Data Centre Association | Brussels-Capital |
| European Data Protection Supervisor | Brussels-Capital |
| European Electronic Component Manufacturers' Association | |
| European FinTech Association a.s.b.l. | |
| European Innovation Council | |
| European Payments Council AISBL | |
| European Startup Initiative | Brussels-Capital |
| European Startup Network | Brussels-Capital |
| European Tech Alliance | |
| European University Association | Brussels-Capital |
| Eurosmart | Brussels-Capital |
| EuroSTAR Conference | |
| Eutronix S.A. | Walloon Brabant |
| Eventflare | |
| Ever Near N.V./S.A. | Flemish Brabant |
| Evercom S.P.R.L. | Brussels-Capital |
| Evoluno | |
| Evosys | Brussels-Capital |
| EVS Broadcast Equipment S.A. | Liège |
| Ewapps | |
| Exothera S.A. | |
| Expert-IT | Walloon Brabant |
| eXponent B.V. | East Flanders |
| EyeD Pharma, s.a. | |
| EZGenerator | East Flanders |
| eZoulou | Brussels-Capital |
| Factory Forty | |
| FamousGrey | |
| Fan Arena | |
| Farmad N.V. | East Flanders |
| Faromedia | West Flanders |
| Fast IT Service | Namur |
| Features Analytics | |
| Federation of European Data and Marketing | |
| Federation of Telecoms Engineers of the European Union | Brussels-Capital |
| FEMAG S.A. | Walloon Brabant |
| Ferranti Computer Systems N.V. | Antwerp |
| Fiberklaar | |
| Finance & Invest Brussels | Brussels-Capital |
| Financial Systems Solutions S.P.R.L. | Walloon Brabant |
| Firmware | |
| FITCE Belgium | Brussels-Capital |
| FKS | Limburg |