| Drøbak Badstue AS | Drøbak | 2024 |
| Drøbak Minigraver Da | Drøbak | 2018 |
| Drøbak Vinterland AS | Drøbak | 2026 |
| Drømmeblomster AS | Oslo | 2024 |
| Drømmeferien AS | Kleppestø | 1992 |
| Drømmehagen AS | Hagan | 2010 |
| Drømmehytter AS | Raufoss | 2020 |
| Drømmene AS | Oslo | 2021 |
| Drømmereiser AS | Oslo | 2009 |
| Drømmetelt AS | Torp | 2026 |
| Drømmeturer AS | Bjerkreim | 2004 |
| DS Invest AS | Åkrehamn | 2006 |
| DS Record 18 Ltd Nuf | N146Qh, London, Southgate | 2008 |
| DS Record 30 Ltd Nuf | N146Qh, London, Southgate | 2010 |
| DSD Investering 2 AS | Stavanger | 2010 |
| Dse AB Nuf | Se-745 94 Enköping | 2024 |
| DSH Holding AS | Porsgrunn | 2025 |
| DSS Diplomatic Security Service AS | Oslo | 2023 |
| Dsvg AS | Hafrsfjord | 2021 |
| DT Renhold AS | Roa | 2025 |
| Dte Maskin AS | Åfjord | 2020 |
| DTN AS | Mo I Rana | 2011 |
| Du-Da Klar AS | Oslo | 2022 |
| Dubravo Aps | Dk-5270 Odense N | 2013 |
| Duck Holding AS | Florvåg | 2015 |
| Due North AS | Jøkelfjord | 2022 |
| Duen Experience AS | Stonglandseidet | 2016 |
| Dugeleg Utleie AS | Stavanger | 2022 |
| Dugelig AS | Sandvika | 2023 |
| Duger Fortsatt AS | Elverum | 2023 |
| Dugg Sauna AS | Notodden | 2021 |
| Duke Bergman & Partners AB | Se-118 28 Stockholm | 2022 |
| Dukon AS | Arendal | 2011 |
| Dun & Bradstreet Norway AS | Oslo | 1995 |
| Dundas Explorer AS | Oslo | 2021 |
| Dundrer AS | Kongsvinger | 2025 |
| Dunihagen AS | Sande I Vestfold | 2010 |
| Dunker Lyd Og Lys AS | Høvik | 2024 |
| Dunlop Oil & Marine Ltd | Dn31 2Sp | 2010 |
| Duo Drift AS | Kirkenes | 2025 |
| Dust Busters AS | Strømmen | 2025 |
| Dusty & Dirty AS | Bjørkelangen | 2025 |
| Dutchtec Aps | 5462 Morud | 2017 |
| DV Service AS | Hønefoss | 2026 |
| Dvergsdal AS | Førde | 2024 |
| DVK Eiendomsdrift AS | Drammen | 2025 |
| DVK Eiendomsdrift Oslo AS | Drammen | 2026 |
| Dwa Event AS | Blystadlia | 2022 |
| Dwi AS | Oslo | 2017 |
| DWK Offshore AS | Oslo | 2024 |
| DWR Engineering Services Ltd Nuf | Plg 6At Plymouth | 2020 |
| Dybesland & Lie Invest AS | Kristiansand S | 2005 |
| Dybvik AS | Bosberg | 2020 |
| Dydlands Konsulenttjenester AS | Oslo | 2016 |
| Dyktighandverker.No | Pl-80-726 Gdansk | 2016 |
| Dynamic Motion AS | Oslo | 2019 |
| Dynamic Well Solutions Rental AS | Tananger | 2018 |
| Dynamittholmen AS | Risør | 2018 |
| Dyr I Drift AS | Ålesund | 2016 |
| Dyreng AS | Larvik | 2021 |
| Dyrsku'N Arrangement AS | Seljord | 1996 |
| Dyrstad Invest AS | Svelgen | 2011 |
| Dyrøy Holiday AS | Brøstadbotn | 2012 |
| Dystingbo AS | Oslo | 2023 |
| Dahles Offset AS | Stavanger | 1951 |
| Data Tracer International A/S | Arendal | 1986 |
| Døds Diving League AS | Oslo | 2021 |
| Dødsbohjelpen AS | Oslo | 2022 |
| Dølabike AS | Ringebu | 2021 |
| Dørhåndverkeren AS | Ulefoss | 2023 |
| Døvre Event & Marketing AS | Stavanger | 1996 |
| Døvre Search & Selection AS | Trondheim | 1997 |
| E Koldal Transport Og Utleie AS | Fana | 2022 |
| E Personal AS | Rælingen | 2026 |
| E Solutions AS | Brøttum | 2019 |
| E W G-Parques Eolicos Assistencia Tecnica Lda | Pt-4900 568 Viana Do Castelo | 2021 |
| E Østigård AS | Midsund | 2022 |
| E&G Bygg Renhold AS | Gamle Fredrikstad | 2019 |
| E&L Birkeland AS | Storebø | 2012 |
| E&M Consulting AS | Oslo | 2018 |
| E&R Service AS | Hauge I Dalane | 2021 |
| E-Dek Investment (Pty) Ltd | 2163 Johannesburg | 2007 |
| E-Konferansen AS | Bergen | 2007 |
| E-Mirror Internet Pty (Norway) Limited | London Ec1V 2Nx England | 2024 |
| E-Sim AS | Sogndal | 2011 |
| E-Skjenk AS | Fornebu | 2024 |
| E. Bredesen Invest AS | Grøa | 2020 |
| E. Bredesen Utleie AS | Grøa | 2024 |
| E. Brøvig Invest AS | Hamresanden | 2015 |
| E. Eriksen Holding AS | Krokkleiva | 2017 |
| E. Hartikainen OY | Fi-80130 Joensuu | 2026 |
| E. Helmen AS | Drammen | 2018 |
| E. Hundven Service Og Vedlikehold AS | Laksevåg | 2005 |
| E. Løvaas Holding AS | Mathopen | 2005 |
| E. Løyning Maskin AS | Egersund | 2019 |
| E. Nevland AS | Egersund | 2020 |
| E. Trasborg | Dk-2730 Herlev | 2024 |
| E.B.A. Ans | Kristiansand S | 2007 |
| E.E Utleige AS | Tysse | 2023 |
| E.Gulbrandsen AS | Frei | 2023 |