| Autri AS | Austrheim | 2010 |
| Autus AS | Oslo | 2005 |
| Auviohm AS | Nesodden | 2005 |
| Av Eiendom AS | Haugesund | 2004 |
| Av.Living AS | Klavestadhaugen | 2017 |
| AV9-11T AS | Holmestrand | 2022 |
| Ava AS | Asker | 1991 |
| Ava Boligutvikling AS | Bergen | 2021 |
| Ava Eiendom AS | Asker | 2006 |
| Ava Eiendomsdrift AS | Asker | 2011 |
| Ava Eiendomsforvaltning AS | Asker | 1992 |
| Ava Eiendomspartner AS | Asker | 2009 |
| Ava Invest AS | Asker | 1989 |
| Ava Investor 10 AS | Asker | 2016 |
| Ava Investor 2 AS | Asker | 2006 |
| Ava Investor 4 AS | Asker | 2011 |
| Ava Investor AS | Asker | 2004 |
| Ava Nor Eiendom AS | Harstad | 2023 |
| Avalanche AS | Oslo | 2005 |
| Avaldsnes Property AS | Avaldsnes | 2011 |
| Avalon Holding AS | Fornebu | 2012 |
| Avana AS | Drammen | 2023 |
| Avance Invest AS | Rindal | 2006 |
| Avano Eiendom AS | Drammen | 2025 |
| Avant AS | Oslo | 2005 |
| Avant Capital AS | Oslo | 2020 |
| Avant Eiendomsutvikling AS | Hønefoss | 2003 |
| Avant Management AS | Trondheim | 2004 |
| Avant Venture Capital AS | Oslo | 2006 |
| Avanta AS | Oslo | 2018 |
| Avante AS | Eidsvoll | 1998 |
| Avante Holding AS | Kråkerøy | 2018 |
| Avanti Eiendom AS | Drammen | 1997 |
| Avanto Opportunities Vi AS | Hafrsfjord | 2024 |
| Avantor AS | Oslo | 1984 |
| Avantor Bolig Gullhaug Torg AS | Oslo | 2026 |
| Avantor Bolig Sandakerveien AS | Oslo | 2026 |
| Avantor Eiendomsforvaltning AS | Oslo | 1992 |
| Avantor Gjerdrums Vei 10A AS | Oslo | 2006 |
| Avantor Gjerdrums Vei 11 AS | Oslo | 2016 |
| Avantor Gjerdrums Vei 4 AS | Oslo | 2006 |
| Avantor Gjerdrums Vei 6 AS | Oslo | 2006 |
| Avantor Gullhaug Torg 1 AS | Oslo | 2016 |
| Avantor Gullhaug Torg 2A AS | Oslo | 2006 |
| Avantor Gullhaug Torg 5 AS | Oslo | 2006 |
| Avantor Nydalen Allé 37 AS | Oslo | 2006 |
| Avantor Nydalsveien 12 AS | Oslo | 2019 |
| Avantor Nydalsveien 18 Og 24 AS | Oslo | 2019 |
| Avantor Nydalsveien 21 AS | Oslo | 2006 |
| Avantor Nydalsveien 28 AS | Oslo | 2012 |
| Avantor Nydalsveien 30A AS | Oslo | 2006 |
| Avantor Nydalsveien 30B AS | Oslo | 2006 |
| Avantor Nydalsveien 32B AS | Oslo | 2006 |
| Avantor Nydalsveien 33 AS | Oslo | 2006 |
| Avantor P N12-26 AS | Oslo | 2006 |
| Avantor Parkering AS | Oslo | 2002 |
| Avantor Sandakerveien 113-119 AS | Oslo | 2002 |
| Avantor Sandakerveien 128 AS | Oslo | 2006 |
| Avantor Slemmestad AS | Slemmestad | 2000 |
| Avantor Slemmestad Utvikling AS | Slemmestad | 2017 |
| Avantor Vitaminveien 5B AS | Oslo | 2006 |
| Avantus AS | Drammen | 1998 |
| Avarice AS | Nykirke | 1991 |
| Avaron AS | Stabekk | 2012 |
| Avarus Eiendom AS | Stavanger | 2019 |
| Avb Holding AS | Manstad | 2005 |
| Avd Servers Limited | Oslo | 2021 |
| Avdeling Skillebekk AS | Oslo | 2026 |
| Avdeling Torshovgata 3 AS | Oslo | 2024 |
| Avdeling Ullevålsveien AS | Oslo | 2022 |
| Avdemsbue Eigedom AS | Lesja | 2021 |
| Ave Capital AS | Oslo | 2025 |
| Ave Eiendom AS | Tønsberg | 2017 |
| Ave Systemer Eiendom AS | Nærbø | 2009 |
| Avector AS | Fana | 2005 |
| Avehus AS | Skien | 2013 |
| Avello AS | Kvam | 2006 |
| Avemox AS | Lovund | 2021 |
| Aven AS | Holmestrand | 2013 |
| Aven Eiendom Kragerø AS | Kragerø | 2017 |
| Avenda Eiendom AS | Rykkinn | 2025 |
| Avendur Nordic AS | Lysaker | 2026 |
| Avenida AS | Oslo | 2000 |
| Aventador Eiendom AS | Larvik | 2023 |
| Aventi AS | Kristiansand S | 2005 |
| Aventi Norway AS | Oslo | 2014 |
| Aventium AS | Tønsberg | 2024 |
| Avenue Brasil AS | Rud | 2006 |
| Avenue Eiendom AS | Lierskogen | 2004 |
| Avenue Invest AS | Rud | 1984 |
| Avenyen 33 AS | Kokstad | 2025 |
| Avenyen 36 AS | Kristiansand S | 2007 |
| Avenyen 7 AS | Kristiansand S | 2011 |
| Avenyen Eiendom AS | Kristiansand S | 2016 |
| Avenyen Invest AS | Kristiansand S | 2020 |
| Avenyen Storhandel AS | Kristiansand S | 2020 |
| Averstadmoen 11 AS | Oslo | 2020 |
| Averøy Betong Eiendom AS | Averøy | 2013 |
| Averøy Brygge & Lagerutleie AS | Averøy | 2016 |
| Averøy Fagsenter AS | Averøy | 2019 |