| Hubrecht Institute | |
| Huigsloot Robotics B.V. | South Holland |
| Huijzer Components | North Holland |
| Human-Software | North Holland |
| HuRis | North Brabant |
| HvH | South Holland |
| HVR Software B.V. | North Holland |
| Hybrid Web Solutions | South Holland |
| Hybridize Therapeutics | South Holland |
| Hycult Biotech | North Brabant |
| Hydraloop | Friesland |
| Hypherdata | North Holland |
| Hyves Games | |
| I'tension B.V. | Overijssel |
| i-Aspect B.V. | Utrecht |
| i-Concept Internetworks B.V. | South Holland |
| I-design B.V. | Overijssel |
| I-Med Technology | |
| i-Reserve | Utrecht |
| I-Teq | South Holland |
| I-Trade | North Holland |
| i3 Groep | Utrecht |
| i3D.net B.V. | South Holland |
| i4Things B.V. | Limburg |
| iACTOR B.V. | South Holland |
| IBANC | |
| IBANC Software | North Holland |
| Ibizz | North Brabant |
| iBUidings | Zeeland |
| iBuro B.V. | South Holland |
| IC Hosting | Groningen |
| Icarus Automatisering | South Holland |
| ICATT | North Holland |
| Iceberg Interactive | North Holland |
| Icecat | Utrecht |
| IceHosting B.V. | |
| ICEPAY B.V. | North Holland |
| Icera Networks B.V. | South Holland |
| Iceshop | Utrecht |
| ICF Tech Eu B.V. | |
| ICIT Solutions B.V. | Friesland |
| iCOLOGiQ | Overijssel |
| Iconum | North Holland |
| ICORP | South Holland |
| ICRON Technologies Europe B.V. | North Holland |
| ICS Computers B.V. | Overijssel |
| Ics vertex interactive benelux B.V. | North Holland |
| ICT Automatisering N.V. | South Holland |
| ICT Career | Utrecht |
| ICT Center Friesland | Friesland |