| European Investment Fund | Luxembourg |
| European Space Resources Innovation Centre | |
| Eurosender S.à r.l. | |
| Eurosystems S.à.r.l. | Grevenmacher |
| Everest Communication S.A. | Esch-sur-Alzette |
| Explose | Esch-sur-Alzette |
| Expon Capital | Luxembourg |
| Eye-T S.à.r.l. | Grevenmacher |
| F&I Software S.A. | Grevenmacher |
| F. Communications | Esch-sur-Alzette |
| Fabric Ventures Group S.à r.l. | |
| Fabric Ventures Group S.à.r.l. | |
| FCB.ai | |
| FEDIL | |
| Felten-Stein S.A. | Luxembourg |
| Ferroknepper Buderus S.A. | |
| Fineon Exchange | |
| Finexis S.A. | |
| Finologee S.A. | |
| Flen Health S.A. | |
| FlexFinance | Grevenmacher |
| Foersom S.à.r.l. | |
| Fondation Restena | Esch-sur-Alzette |
| fontana.lu | Luxembourg |
| FreeCall | Luxembourg |
| FundsDLT | |
| G-Core Labs S.A. | |
| Game of Code Hackathon | Luxembourg |
| Gcore | |
| Genii Capital | Luxembourg |
| GI Solutions S.à.r.l. | Capellen |
| Gigaaa International S.A. | |
| Global IT Services PSF | Luxembourg |
| Global Media Systems S.A. | Luxembourg |
| Globe.lu | Redange |
| Governance.com | Luxembourg |
| Government IT Centre | Luxembourg |
| GovSat | |
| Gradel | |
| h2a S.A. | |
| hack.lu | Luxembourg |
| Haven Cyber Technologies | Luxembourg |
| HITEC Luxembourg S.A. | Luxembourg |
| Hospilux S.A. | |
| HotCity S.A. | Luxembourg |
| Houdah Software | Luxembourg |
| House of BioHealth | |
| House of Entrepreneurship | |
| House of Startups | Luxembourg |
| HQLAx S.à r.l. | |