| Name | Region |
|---|---|
| HT-Solutions | |
| hub.brussels | |
| Humgy | |
| Hybrid Software | |
| Hyper Vyper | |
| Hyperfair International | |
| Hyperion Entertainment | Brussels-Capital |
| Hysopt | |
| I-COM | Antwerp |
| I-Services | Brussels-Capital |
| i-Theses B.V.B.A. | East Flanders |
| I.R.I.S. S.A. | Walloon Brabant |
| I.T. Works | East Flanders |
| i3-Technologies | Flemish Brabant |
| IAB Europe | Brussels-Capital |
| iBanFirst S.A. | |
| Ibanity | |
| IBGRAF Namur S.P.R.L. | Liège |
| iboris | |
| ICHEC | |
| ICI Solutions S.P.R.L. | Liège |
| Icometrix | |
| Icons B.V.B.A. | Limburg |
| Icorda N.V. | East Flanders |
| ICS Web Agency | |
| IDCreation | West Flanders |
| IDDI | |
| Ideal Systems | Flemish Brabant |
| IDEATEKA web design | Walloon Brabant |
| Identitylab | |
| IDmailing | West Flanders |
| IDT Soft | Luxembourg |
| IdWeaver | Walloon Brabant |
| Iechc | Hainaut |
| IEN Europe | Brussels-Capital |
| IG Soft | |
| iGLOO | Walloon Brabant |
| IGRETEC | |
| IKAN | Antwerp |
| ILIAS Solutions S.A. | Brussels-Capital |
| Image-Line Software BVBA | East Flanders |
| Imagine-IT B.V.B.A. | Brussels-Capital |
| Imalink | East Flanders |
| Imcyse S.A. | |
| Imec | |
| Imec Xpand | |
| Imec.istart | |
| ImmoAssist | Luxembourg |
| ImmuneSpec | |
| ImmuneSpec |