| Brøsholen Eiendom AS | Real estate | 2012 |
| Brøsholen Invest AS | Real estate | 2007 |
| By Winje AS | Professional & scientific | 2026 |
| Bygg Kunnskap AS | Construction | 2020 |
| Båtformidling AS | Wholesale & retail | 2018 |
| Børre Berglund Reiselivsrådgivning AS | Administrative & support | 2012 |
| C Olsen AS | Wholesale & retail | 1927 |
| C. Søndergaard Papir AS V/Byrået I Son AS | Wholesale & retail | 2007 |
| Cair Chaladain Capital AS | | 2024 |
| Caluna AS | Wholesale & retail | 2017 |
| Campsoon AS | Administrative & support | 2012 |
| Canopy Wines AS | Wholesale & retail | 2026 |
| Cape Investment AS | Real estate | 1998 |
| Capital O AS | Wholesale & retail | 2023 |
| Care Avlastning AS | Health & social care | 2018 |
| Carolines Trafikkskole AS | Education | 2024 |
| Carsten Berg VVS | Construction | 1999 |
| Casada Norge AS | Wholesale & retail | 2012 |
| Cawa Skoholding AS | | 2021 |
| CB Property AS | Real estate | 2017 |
| CBL Publishing AS | Information & communication | 2011 |
| Cerebellum AS | Professional & scientific | 1986 |
| Cevilo AS | | 2026 |
| Chief AS | Real estate | 1997 |
| Cilli's Concept AS | Professional & scientific | 2015 |
| Ciso Services AS | Information & communication | 2020 |
| CK Gruppen AS | Wholesale & retail | 2014 |
| Classic Garden AB | Wholesale & retail | 1995 |
| Cleanzone Norden AS | Wholesale & retail | 2025 |
| Clou Eiendom AS | Real estate | 2006 |
| Clovers AS | Professional & scientific | 2020 |
| CM Network | Professional & scientific | 2012 |
| Compass Event AS | Arts & recreation | 2004 |
| Con Lift Salg AS | Wholesale & retail | 1999 |
| Connector AS | | 2026 |
| Connector Group AS | | 2026 |
| Connector Investment Partner AS | | 1986 |
| Coth Invest AS | | 2023 |
| Creomantia AS | Information & communication | 2024 |
| Cybersecurity Holding AS | Information & communication | 2021 |
| D Å Bo AS | Professional & scientific | 2007 |
| Dahlslie Bygg & Tømrerservice AS | Construction | 2016 |
| Dahlslie Holding AS | Financial services | 2017 |
| Dara AS | Real estate | 2018 |
| Davidarinella AS | | 2025 |
| Designkonsult AS | Professional & scientific | 2013 |
| DFC Invest AS | | 2018 |
| Dialog Media AS | Professional & scientific | 1993 |
| Dikom AS | Information & communication | 2018 |
| Dimension Design AS | Professional & scientific | 1995 |
| Dis. Interiørarkitekter Mnil AS | Professional & scientific | 2012 |
| Discoworld AS | Wholesale & retail | 2009 |
| DKS Capital AS | | 2025 |
| Doherty Design AS | Education | 2023 |
| Doherty Holding AS | Education | 2023 |
| Donkeycorn Ventures AS | | 2026 |
| DR Frederik Natvig Olafsen AS | Health & social care | 2025 |
| DR Thor AS | Health & social care | 2021 |
| Drillestad Publishing AS | Professional & scientific | 2025 |
| Durabel Holding AS | | 2021 |
| Dyco Holding AS | Wholesale & retail | 2024 |
| Dyreklinikken Son AS | Professional & scientific | 2022 |
| E&H Holding AS | | 2024 |
| Eatifyed Solution AS | Professional & scientific | 2021 |
| Ec Nordic AS | Professional & scientific | 2025 |
| Egeland Holding AS | | 2007 |
| Egnir AS | Professional & scientific | 2015 |
| Egnir Invest AS | | 2024 |
| Eiendom 10 AS | Real estate | 2017 |
| Eikebø Transport AS | Transport & logistics | 2012 |
| Eileen Ortiz Berg AS | Real estate | 2006 |
| Einar Bøgeberg Jungård AS | Financial services | 2016 |
| Einarson Invest AS | | 2024 |
| Ek-Viktoria A/S | Construction | 2001 |
| Ekerholt AS | Information & communication | 2014 |
| Ekm AS | Information & communication | 2018 |
| El Pollo 3 AS | | 2019 |
| Eliasson Holding AS | | 2020 |
| Elistova AS | | 2014 |
| Ella Studio AS | Arts & recreation | 2021 |
| Elleni Holding AS | Real estate | 2022 |
| Elvern - Son AS | Construction | 1991 |
| En Enkel Manns Drift AS | Arts & recreation | 2024 |
| En Enkel Manns Foretak AS | Information & communication | 2012 |
| Endavant Software AS | Information & communication | 2013 |
| Eni AS | Professional & scientific | 2013 |
| Entré Design AS | Wholesale & retail | 2026 |
| Envita AS | Information & communication | 2024 |
| Epag AS | Real estate | 2014 |
| Erik Valle & Sønn AS | Construction | 2023 |
| Erika Ribu AS | Education | 2026 |
| Essa Invest AS | Real estate | 2019 |
| European Aviation Safety Training Organisation AS | Professional & scientific | 1997 |
| Expressio AS | | 2018 |
| Eøp Holding AS | Financial services | 2013 |
| F. K. Teknik/Design Aps Nuf | Manufacturing | 2006 |
| Fagerjord Invest AS | | 2024 |
| Fargespektrum AS | Wholesale & retail | 2025 |
| FCN Invest AS | Real estate | 2025 |
| Felix - Et Credo AS | Wholesale & retail | 1992 |