| Dalen Pukk AS | Dalen | 2023 |
| Dalen Rør AS | Dalen | 2019 |
| Dalen VVS AS | Ski | 2017 |
| Dalenbergs El & Maskinteknik | Se-511 62 Skene | 2019 |
| Dalens Trä & Bygg AB | 66492 Värmskog | 2016 |
| Daletippen AS | Ågotnes | 2006 |
| Dalevegen SA | Lauvstad | 2015 |
| Dalhaug Multiservice AS | Storsteinnes | 2023 |
| Dalsa Service AS | Oslo | 2025 |
| Dalsbygda Bygg Og Laft AS | Dalsbygda | 2014 |
| Dalsbygda Graveservice Ans | Os I Østerdalen | 2005 |
| Dalsbygda Serviceselskap AS | Os I Østerdalen | 2016 |
| Dalsegg Rørleggerservice AS | Tynset | 2013 |
| Dalseghagen Betongbygg AS | Vinstra | 2010 |
| Dalseide Elektro Og Utleie AS | Frekhaug | 2024 |
| Dalseng Gruppen AS | Karasjok | 2023 |
| Dalsfjord Bygg AS | Folkestad | 1984 |
| Dalshagen AS | Skollenborg | 2016 |
| Dalslands Betonghåltagning AB | Se-668 92 Ed | 2013 |
| Dalslands Fixaren AB | Se-668 91 Ed | 2019 |
| Dalslands Mark & Betongteknik AB | Se-66892 Ed | 2021 |
| Dam Og Sjøplastring AS | Skibotn | 2021 |
| Dam-Bud Damian Tamon | Pl-26-420 Nowe Miasto N/Pilica | 2013 |
| Dambach Lagersysteme Gmhg & Co KG | 76476 Bischweier | 2016 |
| Damfjell AS | Kaupanger | 2024 |
| Damgata Holding AS | Åsgårdstrand | 2009 |
| Dami AS | Tofte | 2012 |
| Dami Drift AS | Tofte | 2018 |
| Dami Gruppen AS | Tofte | 2020 |
| Damian Bygg AS | Oslo | 2019 |
| Damian Werner | Stabekk | 2008 |
| Damkjær Vedlikehold AS | Helgeroa | 2007 |
| Damli Byggtjenester AS | Opphaug | 2006 |
| DAMM1 AS | Hovin I Telemark | 2026 |
| Dammen & Follestad Rørlegger Service AS | Sande I Vestfold | 2023 |
| Dammen Bygg AS | Kongsberg | 1996 |
| Dammyr Bygg AS | Fredrikstad | 2007 |
| Damo Håndverk AS | Hesseng | 2022 |
| Damsgård Brannsikring AS | Bergen | 2017 |
| Damsgård Maskin AS | Nærbø | 2026 |
| Damsgård-Holding AS | Bergen | 2017 |
| Damsletta AS | Hunndalen | 2019 |
| Damåsen Stein AS | Kongsberg | 2006 |
| Dan Blikk AS | Oslo | 1994 |
| Dan Bygg AS | Sofiemyr | 1996 |
| Dan Construct AS | Sandvika | 2015 |
| Dan Hagfors AS | Atna | 2023 |
| Dan Invest AS | Mjøndalen | 2005 |
| Dan Nilsson | Se-243 31 Høør | 2014 |
| Dan Svege AS | Flekkefjord | 2008 |
| Dan-Doors | Dk - 8660 Skanderborg | 2010 |
| Dana Gruppen AS | Nesttun | 2020 |
| Danboring | 8620 Kjellerup | 2014 |
| Dandara AS | Oslo | 2019 |
| Dandara Invest AS | Oslo | 2021 |
| Danderyds Snickeri | Se-187 66 Täby | 2016 |
| Daneka Bygg AS | Oslo | 2025 |
| Danfencer Områdesikring AS | Drammen | 2014 |
| Danflis AS | Stange | 2015 |
| Dani Bygg AS | Hagan | 2021 |
| Dani Holding AS | Kirkenes | 2006 |
| Daniel Aho | Halden | 2008 |
| Daniel Alfresson Bygg I Kalvskinn AB | Se-45742 Fjällbacka | 2025 |
| Daniel Hansens Gate 9 AS | Bergen | 2012 |
| Daniel Hoffsbakken AS | Vormsund | 2018 |
| Daniel Jakobsen Maskin AS | Alta | 2017 |
| Daniel Madsen Invest AS | Åmot | 2020 |
| Daniel Nilsen AS | Helle | 2024 |
| Daniel Ossowski | 84300 Lebork | 2006 |
| Daniel Plura Snekkerservice AS | Melandsjø | 2019 |
| Daniel Pocieznicki | Grålum | 2007 |
| Daniel Przekwas | 13-300 N M Lubawskie | 2007 |
| Daniel Romsdal AS | Alta | 2016 |
| Daniel Straum AS | Vegårshei | 2024 |
| Daniel's Betong & Hage AS | Forsand | 2021 |
| Daniel's Tak Og Byggservice AS | Skien | 2014 |
| Daniels Bygg & Höghöjdstjänster AB Nuf | Se-621 11 Visby | 2025 |
| Daniels Inrednings Snickeri AS | Røyken | 2017 |
| Danielsen Bygg AS | Kleppe | 2025 |
| Danielsen Gravemaskindrift AS | Heradsbygd | 2010 |
| Danielsen Og Muriqi Bygg AS | Søgne | 2021 |
| Danijo Din Montagepartner | Dk-8940 Randers | 2013 |
| Danilowicz Byggservice AS | Nesøya | 2026 |
| Danish Healthcare Design | Dk-8500 Hobro | 2015 |
| Danitek AS | Slattum | 1998 |
| Dankan Miroslaw Sobkowiak | Pl- 62 220 Trzuskolon | 2023 |
| Dankertsen Bygg Og Boligtaksering AS | Bergen | 2012 |
| Danmar Bygg AS | Tromsø | 2018 |
| Danmax | Dk-9560 Hadsund | 2017 |
| Dannevig Bygg AS | Lindesnes | 2022 |
| Dano Tak AS | Bjørøyhamn | 2025 |
| Danor Elektro AS | Oslo | 2000 |
| Danryd Holding AS | Råholt | 2024 |
| Dansk Bygnings Montasje Da | Oslo | 2002 |
| Dansk Gartneri Montage Aps | Oslo | 1999 |
| Dansk Holding AS | Stavanger | 2015 |
| Dansk Kakel & Maleri | Se-673 32 Charlottenberg | 2003 |
| Dansk Norsk Håndverk Ans | Bergen | 2002 |
| Dansk Plast Nuf | Dk-6715 Esbjerg N | 2018 |
| Dansk Portindustri | Dk-6000 Kolding | 2023 |