| Arcade Invest AS | Flekkerøy | 2021 |
| Arcal Invest AS | Ålesund | 2008 |
| Arcanum Eiendom AS | Oslo | 2007 |
| Arcanum Investment AS | Oslo | 2020 |
| Arcari Invest AB Nuf | Se-412 56 Göteborg | 2025 |
| Arcatum AS | Lysaker | 1994 |
| Arcem AS | Oslo | 2024 |
| Arcem DC 11 AS | Oslo | 2024 |
| Arcem DC 13 AS | Oslo | 2025 |
| Arcem DC 14 AS | Oslo | 2025 |
| Arcem DC 15 AS | Oslo | 2025 |
| Arcem GO-DC2 AS | Oslo | 2016 |
| Arcem Langedalen AS | Oslo | 2025 |
| Arcem Sa-Dc AS | Oslo | 2022 |
| Arcem SI-DC4 AS | Oslo | 2015 |
| Arcem SK-DC1 AS | Oslo | 2022 |
| Arcengine AS | Oslo | 2025 |
| Arceo Holding AS | Tromsø | 2023 |
| Arch AS | Sandnes | 2015 |
| Arch Eiendom AS | Langesund | 2009 |
| Archithea AS | Oslo | 2017 |
| Arci AS | Lillehammer | 1987 |
| Arcin AS | Oslo | 1998 |
| Arcinvest AS | Langevåg | 1988 |
| Arcipel AS | Oslo | 1994 |
| Arcitura Eiendom AS | Drammen | 2022 |
| Arcium Asker AS | Drammen | 2026 |
| Arcium Bolig AS | Drammen | 2005 |
| Arcko Invest AS | Oslo | 2022 |
| Arco Investering AS | Svelvik | 2020 |
| Arco Vest AS | Sogndal | 2017 |
| Arcon Eiendom AS | Oslo | 2024 |
| Arcos Eiendom AS | Tromsø | 2016 |
| Arcos Holding AS | Tromsø | 2020 |
| Arctander Eftf. AS | Vollen | 2006 |
| Arctander Invest & Consulting AS | Stavanger | 2011 |
| Arctandergården AS | Gravdal | 2017 |
| Arctech AS | Søfteland | 2021 |
| Arctech Innovation Cluster AS | Kirkenes | 2024 |
| Arctic Apartments AS | Bodø | 2022 |
| Arctic Arena Eiendom AS | Bodø | 2026 |
| Arctic Arena Fotball AS | Bodø | 2025 |
| Arctic Arena Losje 1 AS | Bodø | 2025 |
| Arctic Arena Losje 2 AS | Bodø | 2025 |
| Arctic Arena Losje 3 AS | Bodø | 2025 |
| Arctic Arena Losje 4 AS | Bodø | 2025 |
| Arctic Arena Losje 5 AS | Bodø | 2025 |
| Arctic Arena Losje 6 AS | Bodø | 2025 |
| Arctic Arena Losje 7 AS | Bodø | 2025 |
| Arctic Arena Nord AS | Bodø | 2021 |
| Arctic Arena Næring AS | Bodø | 2025 |
| Arctic Aurora Cabins AS | Kurland | 2026 |
| Arctic Bloom AS | Oslo | 2005 |
| Arctic Bridge AS | Spydeberg | 2018 |
| Arctic Buesport Eiendom AS | Evenskjer | 2022 |
| Arctic Builders AS | Tromsø | 2012 |
| Arctic Business Corporation AS | Porsgrunn | 2017 |
| Arctic Capital Holding AS | Vadsø | 2017 |
| Arctic Circle Group AS | Alta | 2022 |
| Arctic Circle Hospitality AS | Svolvær | 2024 |
| Arctic Circle Property AS | Tromsø | 2021 |
| Arctic Development Partners G99 AS | Oslo | 2017 |
| Arctic Earth Science, Aes, AS | Haugesund | 2009 |
| Arctic Eiendom AS | Tana | 2001 |
| Arctic Eiendom Harstad AS | Harstad | 2015 |
| Arctic Eiendom Nord AS | Tolvsrød | 2014 |
| Arctic Eiendomsdrift AS | Bodø | 1993 |
| Arctic Eiendomsutvikling AS | Hasvik | 2026 |
| Arctic Elemco AS | Spydeberg | 2017 |
| Arctic Emotions AS | Storslett | 2020 |
| Arctic Fiskeriservice Berlevåg AS | Berlevåg | 1991 |
| Arctic Hospitality Invest AS | Tromsø | 2022 |
| Arctic Hotel Nordkapp AS | Kristiansund N | 2019 |
| Arctic Invest AS | Kongsberg | 2021 |
| Arctic Landscape Hotels AS | Haslum | 2018 |
| Arctic Landscape Hotels Atlanterhavsveien AS | Haslum | 2019 |
| Arctic Landscape Hotels Finnmark Alps AS | Haslum | 2018 |
| Arctic Landscape Hotels Lofoten AS | Haslum | 2019 |
| Arctic Landscape Hotels Vardø AS | Haslum | 2018 |
| Arctic Legend AS | Lakselvbukt | 2025 |
| Arctic Lodge Tromvik AS | Kvaløya | 2022 |
| Arctic Partner AS | Mo I Rana | 2006 |
| Arctic Properties & Invest AS | Rypefjord | 2025 |
| Arctic Property AS | Oslo | 2012 |
| Arctic Prosjekt 108 AS | Oslo | 2018 |
| Arctic Prosjekt 163 AS | Oslo | 2019 |
| Arctic R&B AS | Harstad | 2017 |
| Arctic Real Estate Development AS | Oslo | 2018 |
| Arctic Rental Property AS | Dilling | 2024 |
| Arctic Resort AS | Svensby | 2008 |
| Arctic Sami Adventure AS | Varangerbotn | 2017 |
| Arctic Sea Cruise Invest AS | Tromsø | 2017 |
| Arctic Sea Lodges AS | Sortland | 2021 |
| Arctic Seafarm Eiendom AS | Nesna | 2022 |
| Arctic Stensland Eiendom AS | Øresvik | 2007 |
| Arctic Supply Scandinavia AS | Sykkylven | 1988 |
| Arctic Tigers AS | Molde | 2022 |
| Arctic Travel Experience AS | Tromsø | 2019 |
| Arctic Venture Capital AS | Kirkenes | 2021 |
| Arctic Village I Norge AS | Ramfjordbotn | 2017 |