| Dlvry Topco AS | Wholesale & retail | 2021 |
| DM Eiendom AS | Real estate | 2020 |
| DM Holdit AS | | 2024 |
| DM Kraft AS | Administrative & support | 2023 |
| DM Office AS | Wholesale & retail | 2012 |
| DM Regnskap Oslo AS | Professional & scientific | 2013 |
| Dma AS | Other services | 2021 |
| DMB Invest AS | | 2024 |
| DMC AS | Health & social care | 2021 |
| DMC Capital AS | | 2025 |
| DMC Norway AS | Information & communication | 2022 |
| DMC Oslo AS | Administrative & support | 2024 |
| Dmcl Invest AS | | 2022 |
| DMD Building AS | Construction | 2025 |
| DMD Renhold Ltd. Nuf | Administrative & support | 2008 |
| Dmedical AS | Wholesale & retail | 2005 |
| DMG 1-3 AS | Real estate | 2002 |
| DMH Invest AS | Financial services | 2005 |
| DMN Holding AS | | 2019 |
| Dmoney AS | | 2021 |
| DMR Miljø Og Geoteknikk AS | Professional & scientific | 2014 |
| Dmr-Dahl Market Research AS | Professional & scientific | 2013 |
| DMS Eiendom AS | Real estate | 2021 |
| DMS Marina AS | Arts & recreation | 2022 |
| DMT Solutions Norway AS | Wholesale & retail | 2018 |
| Dmuv Invest AS | Financial services | 2015 |
| DMZ AS | Arts & recreation | 2023 |
| DN Invest AS | | 2007 |
| DN Media Group AS | Information & communication | 2021 |
| DN Media Group Global AS | Information & communication | 1985 |
| Dna AS | | 2018 |
| Dna Events AS | Professional & scientific | 2012 |
| Dna Invest AS | Real estate | 2021 |
| Dna Invest Holding AS | | 2019 |
| Dna Kompetanse AS | Administrative & support | 2007 |
| Dna Tracer Technologies AS | Professional & scientific | 2012 |
| Dna-Detektiven AS | Other services | 2021 |
| DNB Asset Management AS | Financial services | 1998 |
| DNB Asset Management Holding AS | Financial services | 1984 |
| DNB Bank ASA | Financial services | 2002 |
| DNB Boligkreditt AS | Financial services | 2003 |
| DNB Carnegie Business Management AS | Professional & scientific | 2017 |
| DNB Eiendom AS | Real estate | 1953 |
| DNB Eiendomsutvikling AS | Real estate | 1984 |
| DNB Finans AS | Financial services | 1962 |
| DNB Infrastructure I AS | Financial services | 2024 |
| DNB Invest Holding AS | Financial services | 1989 |
| DNB Næringsmegling AS | Real estate | 1995 |
| DNB Pe Direct I (Is) AS | Financial services | 2019 |
| DNB Pe Direct II (Is) AS | Financial services | 2022 |
| DNB Pe Direct III (Is) AS | Financial services | 2025 |
| DNB Pe Direct III AS | Financial services | 2026 |
| DNB Private Equity I (GP) AS | Financial services | 2007 |
| DNB Private Equity I AS | Financial services | 2007 |
| DNB Private Equity I KS | Financial services | 2007 |
| DNB Private Equity IV (Is) AS | Financial services | 2015 |
| DNB Private Equity Ix AS | Financial services | 2022 |
| DNB Private Equity V (Is) AS | Financial services | 2017 |
| DNB Private Equity Vi (Is) AS | Financial services | 2018 |
| DNB Private Equity Vi AS | Financial services | 2019 |
| DNB Private Equity Vii (Is) AS | Financial services | 2019 |
| DNB Private Equity Vii AS | Financial services | 2020 |
| DNB Private Equity Viii (Is) AS | Financial services | 2020 |
| DNB Private Equity Viii AS | Financial services | 2020 |
| DNB Private Equity X AS | Financial services | 2023 |
| DNB Private Equity Xi AS | Financial services | 2024 |
| DNB Private Equity Xii AS | Financial services | 2026 |
| DNB Ventures AS | | 2018 |
| DND Group AS | Information & communication | 2020 |
| Dne Pharma AS | Wholesale & retail | 2007 |
| DNH Eiendom AS | Real estate | 2021 |
| Dnhs Sarpsborg AS | Real estate | 2019 |
| DNK Eiendom AS | Real estate | 2023 |
| DNL Holding AS | | 2026 |
| Dno ASA | Mining & quarrying | 1971 |
| Dno Bidco AS | Mining & quarrying | 2024 |
| Dno Iraq AS | Mining & quarrying | 2005 |
| Dno Mena AS | Professional & scientific | 2011 |
| Dno Middle East and Africa AS | | 2024 |
| Dno North Sea Holding AS | | 2025 |
| Dno Technical Services AS | Mining & quarrying | 2014 |
| Dno Venture AS | | 2025 |
| Dno Yemen AS | Mining & quarrying | 2002 |
| DNR Kompetanse AS | Other services | 2007 |
| Dns-Consulting AS | Professional & scientific | 2020 |
| DNT Holding AS | Construction | 2023 |
| Dntc AS | Information & communication | 2025 |
| Do Holdco AS | | 2024 |
| Do Not Panic AS | Information & communication | 2025 |
| Doan Hair AS | Other services | 1999 |
| Doan Invest AS | | 2025 |
| Doan Kitchen AS | Hospitality | 2020 |
| Dob AS | Professional & scientific | 2006 |
| Dob Invest AS | | 2018 |
| Dobag Holding AS | Wholesale & retail | 2005 |
| Dobbel a Holding AS | Wholesale & retail | 2016 |
| Dobbel Applaus AS | Professional & scientific | 2026 |
| Dobbel AS | Information & communication | 2026 |
| Dobbel D AS | Hospitality | 2022 |
| Dobbel-V AS | | 2022 |