| Internet Marketing Unie B.V. | Utrecht |
| Internet Promotie | Friesland |
| Internet Service Nederland B.V. | South Holland |
| Internet society nederland | South Holland |
| Internet.nl | |
| Internetbureau Forwart | Limburg |
| Internetbureau Max | Gelderland |
| Internetdingetjes | |
| InternetEffect | North Holland |
| Internetiq B.V. | |
| InternetMR | South Holland |
| InternetProjectbureau | Friesland |
| Internetuitgeverij Eurolutions | Utrecht |
| Internetvoorlichting | Gelderland |
| Internetwerk Nederland B.V. | North Brabant |
| InterNL.net | Gelderland |
| Interparts | South Holland |
| Interpulse Automatisering B.V. | South Holland |
| interVision it | Utrecht |
| Interxion HeadQuarters B.V. | North Holland |
| Intivation B.V. | South Holland |
| Intosoft | |
| Intouch N.V. | North Holland |
| Intra Design | Utrecht |
| Intraffic | Utrecht |
| Intrasoft | North Holland |
| Intravacc | |
| Intrinsic-ID B.V. | North Brabant |
| Intris | Utrecht |
| Intronics B.V. | Gelderland |
| IntroTech B.V. | |
| Intus Workforce Solutions B.V. | Utrecht |
| Intwo | |
| InvalPool | Overijssel |
| Invantive B.V. | |
| Invesdor | |
| Invest-NL | |
| InvestInFuture | |
| Investor Ready | |
| Invisible Foods B.V. | |
| Invision ICT Solutions B.V. | North Brabant |
| Ionita Consulting | |
| IP Visie | North Brabant |
| IPknowledge | North Holland |
| Ippo | Gelderland |
| iProspects internetmarketing | Gelderland |
| Iquality | Gelderland |
| Irdeto | North Holland |
| Iris Intranet | North Brabant |
| IRIS Nederland | Limburg |