| Digital Creations AS | Hordaland |
| Digital Impuls Oslo AS | Oslo |
| Digitroll | Hordaland |
| DIMEQ | |
| Dintero AS | |
| Direkte Data AS | Trøndelag |
| Disruptive Technologies | |
| DNB | |
| DNO ASA | |
| Documaster AS | Oslo |
| Dogu SalesScreen AS | |
| Dojob | |
| Dolphin ICS | Oslo |
| Domenia | Oslo |
| Domenshop | Oslo |
| DoMore Diagnostics AS | |
| Domos | |
| Drupal Norge | Oslo |
| Dualog AS | Troms |
| Ducky | |
| Dynaspace | |
| Earth Science Analytics | |
| Easy Webshop | Vestfold |
| Easymeeting AS | |
| Edisys Consulting AS | Oslo |
| Educatia AS | Rogaland |
| Eelume AS | |
| El-Watch | |
| Elcogen AS | |
| Electronicon AS | Hordaland |
| Elliptic Laboratories ASA | |
| EMGS | |
| Emisoft | Hordaland |
| Empatix | Vestfold |
| Empower AS | |
| Energy Connected | |
| Enevo AS | |
| Enin AS | |
| Enonic AS | Oslo |
| Enova | |
| Enovate AS | |
| Ensurge Micropower ASA | |
| Entelios AG | |
| EnterNett | Rogaland |
| Entur AS | |
| EpiGuard | |
| Eplehjelp AS | Oslo |
| Equinor ASA | |
| Esato | Oslo |
| eSmart Systems | |