| Digitelle AS | Information & communication | 2016 |
| Dikeveien 1 AS | Real estate | 2006 |
| Din Dugnad AS | Wholesale & retail | 2013 |
| Din Taxi AS | Transport & logistics | 2021 |
| Din.Taxi AS | Transport & logistics | 2024 |
| Dinica AS | Financial services | 2022 |
| Diploma AS | Health & social care | 1980 |
| Ditto Invest AS | | 2025 |
| Divija AS | Wholesale & retail | 2018 |
| Djupeklo Invest AS | Financial services | 2017 |
| Djus Consulting AS | Professional & scientific | 2020 |
| Djus Holding AS | Professional & scientific | 2021 |
| DMC Transport AS | Transport & logistics | 2025 |
| Dominum AS | Transport & logistics | 2024 |
| Donuts Huset AS | Manufacturing | 2022 |
| Dovre Legesenter Da | Health & social care | 1996 |
| Drammen Klargjøring Eiendom AS | Real estate | 2025 |
| Dreamcatcher Productions AS | Information & communication | 2010 |
| Drip AS | Information & communication | 2021 |
| DROPIN24 AS | Health & social care | 2025 |
| Druevin Pty Ltd Nuf | Wholesale & retail | 2025 |
| Duo Estetisk Studio AS | Other services | 2026 |
| Ea Maler Vedlikehold AS | Construction | 2017 |
| Eat Africa Nordic AS | Wholesale & retail | 2024 |
| Ebina 2 AS | Real estate | 1998 |
| Ebr Elektro AS | Construction | 2012 |
| Ebr Gruppen AS | | 2002 |
| Eci AS | Real estate | 2010 |
| Efg Viken Transport AS | Transport & logistics | 2023 |
| Efo Consult AS | Information & communication | 2014 |
| Eggers Powerplay Holding AS | | 2026 |
| Egner 2 AS | Real estate | 2020 |
| Egon Triaden AS | Hospitality | 1995 |
| Eide Consulting AS | Arts & recreation | 2014 |
| Eiendom Og Prosjektering AS | Real estate | 2021 |
| Eikas AS | Professional & scientific | 2019 |
| Eji Holding AS | | 2025 |
| Ekebergåsen Eiendom AS | Real estate | 2007 |
| Ekrevegen 27 AS | Real estate | 2006 |
| Ekro AS | Information & communication | 2023 |
| Eksos Invest AS | Wholesale & retail | 2005 |
| El Greco Kaffe Og Bakeri AS | Hospitality | 2024 |
| Elavit AS | Arts & recreation | 2012 |
| Elavit Fysioterapi AS | Health & social care | 2015 |
| Electronic Commerce Partners AS | Information & communication | 1997 |
| ELEKTRIKER1 Romerike AS | Construction | 2012 |
| Elektro Fiber AS | Construction | 2014 |
| Eletra Energy AS | Energy | 2022 |
| Elinsta AS | Construction | 2016 |
| Elitehjem AS | Real estate | 2019 |
| Elkraft Aksjeselskap | Energy | 1991 |
| Ellingsen Byggservice AS | Construction | 2020 |
| Ellingsen Gruppen AS | Real estate | 2021 |
| Elron AS | Construction | 2023 |
| Else Berger AS | Real estate | 1982 |
| Elsykkeleksperten AS | Wholesale & retail | 2015 |
| Emil H Martinsen AS | Transport & logistics | 2026 |
| Emjod AS | Information & communication | 1998 |
| Emmaljunga Jord & Torv AS | Wholesale & retail | 2004 |
| Emory Oslo AS | Wholesale & retail | 2025 |
| Emro Helse AS | Other services | 2016 |
| Eneffi AS | | 2023 |
| Energihuset VVS AS | Construction | 2022 |
| Energiveien 11 AS | Real estate | 2006 |
| Enger Munthe-Kaas Holding AS | | 2026 |
| Enkel Respons AS | Information & communication | 2015 |
| Enliven International Inc | | 2006 |
| Ensjø Car Center AS | Wholesale & retail | 2021 |
| Entreprenør Gruppen AS | Construction | 2024 |
| Epirus AS | Professional & scientific | 2011 |
| Epoxy Betong Service AS | Construction | 2011 |
| Eriksen Industrilakkering Eftf Edgar Moe Ans | Manufacturing | 1988 |
| Eriksson & Co AS | Professional & scientific | 2025 |
| Erindre AS | | 2022 |
| Es Transport AS | Transport & logistics | 1992 |
| Ess Event | Administrative & support | 2024 |
| Euro Transport AS | Transport & logistics | 2004 |
| Euroquality Cheese AS | Wholesale & retail | 2021 |
| Euroweld AS | Manufacturing | 1963 |
| Even Dahl AS | Professional & scientific | 1987 |
| Evert Holding AS | | 2018 |
| Exact Service AS | Professional & scientific | 2023 |
| Exbo Sign AS | Professional & scientific | 1995 |
| Explicit Creations Da | Information & communication | 2004 |
| Exponor Eiendom AS | Real estate | 2014 |
| Express Tak&Maling AS | Administrative & support | 2024 |
| Extra Leker Lørenskog AS | Wholesale & retail | 1994 |
| Extraservice Logistikk AS | Transport & logistics | 2014 |
| F & F Invest AS | Transport & logistics | 2016 |
| F Seafood AS | Wholesale & retail | 2023 |
| F.E.R AS | | 2005 |
| F.M Invest AS | Professional & scientific | 2010 |
| Facilitec AS | Administrative & support | 2010 |
| Faiir.Com AS | Information & communication | 2009 |
| Familiekjøp Ans | Wholesale & retail | 1987 |
| Fase Advokatfirma AS | Professional & scientific | 2024 |
| Fasett Eiendom AS | Real estate | 2026 |
| Fast Transport Ox AS | Transport & logistics | 2026 |
| Fayenova AS | Wholesale & retail | 2024 |
| Feieren AS | Administrative & support | 2011 |