| DR Rose AS | | 2022 |
| DR Sverre Sand AS | Health & social care | 2014 |
| DR Techn Kristoffer Apeland AS | Professional & scientific | 1990 |
| DR Teknisk Norge AS | Professional & scientific | 2018 |
| DR Torres AS | Health & social care | 2020 |
| DR Torres Invest AS | Health & social care | 2019 |
| DR Torun Garmann Clausen AS | Health & social care | 2014 |
| DR. Anette Bergs Spesialistpraksis AS | Health & social care | 2009 |
| DR. Astridsgate 2 AS | Real estate | 2013 |
| DR. Barrameda AS | Health & social care | 2023 |
| DR. Brandts Barnehage AS | Education | 2007 |
| DR. Crunchy AS | Hospitality | 2019 |
| DR. Crunchy Waldemar AS | Hospitality | 2024 |
| DR. Dag Anders Rustad AS | Health & social care | 2021 |
| DR. Derma Group AS | Health & social care | 2025 |
| DR. Diako Hamedi Allmennmedisin AS | Health & social care | 2023 |
| DR. Dinh AS | Health & social care | 2022 |
| DR. Dolittle AS | | 2021 |
| DR. Dropin Fysikalske Coco AS | Professional & scientific | 2021 |
| DR. Fast Track AS | Information & communication | 2022 |
| DR. Finseth's Spesialistpraksis AS | Health & social care | 2014 |
| DR. Gunnar Tveiten AS | Health & social care | 2025 |
| DR. Hagberg AS | Health & social care | 2024 |
| DR. Hedda Solerød AS | Health & social care | 2025 |
| DR. Henrik AS | Health & social care | 2024 |
| DR. Holms Vei 15 AS | Real estate | 2014 |
| DR. Holms Vei 19 Bolig AS | Real estate | 2020 |
| DR. Holms Vei 9 AS | Real estate | 2025 |
| DR. Ing. O. Kildal AS | Professional & scientific | 2025 |
| DR. Ing. S. Bergo Holding AS | | 2025 |
| DR. Javanmardi AS | Health & social care | 2020 |
| DR. Javanmardi M.D. AS | Health & social care | 2026 |
| DR. Jørgen Westby AS | Health & social care | 2012 |
| DR. Lyng AS | Health & social care | 2018 |
| DR. Mistry AS | Health & social care | 2019 |
| DR. Munks Gate 6 Porsgrunn AS | Real estate | 2019 |
| DR. Norway Globmed AS | Health & social care | 2025 |
| DR. Phil Good Ventures AS | | 2026 |
| DR. Rabib Helsetjeneste AS | Health & social care | 2021 |
| DR. Rabib Holding AS | Health & social care | 2015 |
| DR. Siamak Kalbasi AS | Health & social care | 2019 |
| DR. Skin AS | Health & social care | 2022 |
| DR. Stefan Randjelovic AS | Health & social care | 2022 |
| Dr.Borgen AS | Health & social care | 2025 |
| Dr.Colom Hudlege Og Laserklinikk AS | Health & social care | 2015 |
| Dr.Dr. Stein Tveten AS | Real estate | 2021 |
| Dr.Dropin AS | Health & social care | 2017 |
| Dr.Dropin BHT AS | Health & social care | 2021 |
| Dr.Dropin Fysikalske AS | Health & social care | 2020 |
| Dr.Dropin IP AS | Information & communication | 2024 |
| Dr.Dropin Psykologi AS | Health & social care | 2022 |
| Dr.Dropin Psykologi Coco AS | | 2022 |
| Dr.Dropin Spesialist AS | Health & social care | 2021 |
| Dr.Ing Bergan AS | Professional & scientific | 2022 |
| Dr.Ing. Jan Ove Holmen AS | Professional & scientific | 2017 |
| Dr.Ing. Kjell Øren AS | Professional & scientific | 2008 |
| Dr.Ing. Torbjørn Kjoberg AS | Professional & scientific | 2019 |
| Dr.Led AS | Construction | 2024 |
| Draamo Invest AS | | 2024 |
| Draape AS | Information & communication | 2020 |
| Draape Holding AS | Professional & scientific | 2023 |
| Drabant Music AS | Information & communication | 2016 |
| Draco Drilling AS | Transport & logistics | 2022 |
| Dradit AS | Professional & scientific | 2025 |
| Draga Holding AS | | 2020 |
| Dragados Norge AS | Construction | 2021 |
| Dragados SA Nuf | Professional & scientific | 2024 |
| Dragdemand AS | Professional & scientific | 2025 |
| Drageland Invest AS | Financial services | 2017 |
| Drager Da | Information & communication | 2013 |
| Dragesund Eiendom AS | Real estate | 2010 |
| Dragesund Holding AS | Financial services | 2006 |
| Dragesund Invest AS | Real estate | 2006 |
| Dragev Invest AS | Financial services | 2016 |
| Dragon Koi AS | | 2019 |
| Dragon Worldwide Ventures Limited | Real estate | 2015 |
| Dragonfly AS | Administrative & support | 2014 |
| Dragonfly Offshore AS | Administrative & support | 2025 |
| Dragonhead AS | Professional & scientific | 2000 |
| Dragons Import Ans | Wholesale & retail | 2002 |
| Dragonveien 16 AS | Real estate | 2001 |
| Dragsuget AS | Real estate | 2013 |
| Drake Street AS | Professional & scientific | 2020 |
| Drakkar Bidco AS | | 2025 |
| Drakkar Consulting AS | Information & communication | 2023 |
| Dralewest Invest AS | | 2026 |
| Drama-O-Rama AS | Education | 2022 |
| Dramaproduksjoner AS | Information & communication | 2017 |
| Drammen Byggprosjekt AS | Construction | 1999 |
| Drammen Byutvikling AS | Real estate | 2009 |
| Drammen Fjordpark AS | Real estate | 2019 |
| Drammen Fjordpark Invest AS | Administrative & support | 2003 |
| Drammen Fjordpark KS | Administrative & support | 2003 |
| Drammen Fjordpark Utvikling AS | Financial services | 2025 |
| Drammen Handelseiendom AS | Real estate | 2022 |
| Drammen Handelspark AS | Real estate | 2016 |
| Drammen Helsepark Dagligvare AS | Wholesale & retail | 2025 |
| Drammen Helsepark Holding AS | | 2026 |
| Drammen Kabelinvest AS | Real estate | 2018 |
| Drammen Kombibygg AS | Real estate | 2022 |