| Anders Stien AS | Real estate | 2014 |
| Anders Stien Holding AS | Construction | 2024 |
| Anders Ventura AS | Arts & recreation | 2019 |
| Anders Vest AS | Professional & scientific | 2024 |
| Anders Wigens Vei 2 AS | Real estate | 1982 |
| Andersen & Andresen Informatikk AS | Information & communication | 1993 |
| Andersen & Skildrud Invest AS | Construction | 2007 |
| Andersen & Valla AS | Arts & recreation | 2016 |
| Andersen Bad & Bolig AS | Construction | 2020 |
| Andersen Bio AS | Professional & scientific | 2025 |
| Andersen Biotech AS | Professional & scientific | 2013 |
| Andersen Interiørarkitekter AS | Professional & scientific | 2013 |
| Andersen Nexus Solutions AS | Professional & scientific | 2025 |
| Andersen Nilsen AS | Wholesale & retail | 2006 |
| Andersen Og Larsen Rørleggerbedrift AS | Construction | 2015 |
| Andersen Strategy Consulting AS | Education | 2005 |
| Andersens Allservice AS | Professional & scientific | 2021 |
| Andersens Foretak AS | Real estate | 2016 |
| Andersens Holding AS | Real estate | 2021 |
| Andersens Småfiks AS | Administrative & support | 2021 |
| Andersfjelstad AS | Information & communication | 2016 |
| Andershg Holding AS | | 2020 |
| Andershh AS | Financial services | 2017 |
| Anderson Holding AS | | 2021 |
| Anderssen & Voll AS | Professional & scientific | 2011 |
| Andersson & Kjærnsmo AS | Construction | 1987 |
| Andersson Accounting AS | Professional & scientific | 2018 |
| Andersson Partners AS | Administrative & support | 2023 |
| Andersson Partners Holding AS | Administrative & support | 2023 |
| Andersson Water Norway AS | Wholesale & retail | 2025 |
| Anderssons Virksomhet AS | Real estate | 2019 |
| Andes Holding AS | | 2026 |
| Andesvinos AS | Wholesale & retail | 2026 |
| Andflilu AS | | 2025 |
| Andhab Holding AS | | 2021 |
| Andhalse AS | Administrative & support | 2024 |
| Andhøy AS | Professional & scientific | 1971 |
| Andhøyregistrene AS | Professional & scientific | 2001 |
| Andi AS | Financial services | 2016 |
| Andiamo AS | | 2005 |
| Andiamo Sports AS | Wholesale & retail | 2023 |
| Andlena AS | Health & social care | 2026 |
| Andli Invest AS | Financial services | 2013 |
| Andlill AS | | 2021 |
| Andma Invest AS | Real estate | 1998 |
| Andmann Holding AS | | 2024 |
| Andmar Operations AS | Professional & scientific | 2012 |
| Andolini Holding AS | Financial services | 2008 |
| Andoly AS | Hospitality | 2019 |
| Andre Aalborg AS | Real estate | 2005 |
| Andre Boller AS | Professional & scientific | 2014 |
| Andre Fosse Holding AS | | 2022 |
| Andre Hellerud AS | Administrative & support | 2017 |
| Andre Planer AS | Information & communication | 2023 |
| Andre Til Høyre AS | Hospitality | 2017 |
| Andre Ting AS | Wholesale & retail | 2023 |
| Andrea AS | Wholesale & retail | 2007 |
| Andrea Blink AS | Wholesale & retail | 2021 |
| Andrea Dolven AS | | 2025 |
| Andrea Hegna AS | Professional & scientific | 2023 |
| Andrea Invest AS | | 2016 |
| Andrea Kapitalforvaltning AS | | 2025 |
| Andrea Lynne AS | Professional & scientific | 2025 |
| Andrea Sveinsdottir AS | Arts & recreation | 2020 |
| Andreas AS | Information & communication | 2026 |
| Andreas B Vase Holding AS | | 2021 |
| Andreas Engesvik AS | Professional & scientific | 2005 |
| Andreas Feet AS | Wholesale & retail | 2018 |
| Andreas Grøgaard AS | Education | 2025 |
| Andreas Hansen Holding AS | | 2022 |
| Andreas Heim AS | | 2026 |
| Andreas Heufler - Montage Von Parkleitsystemen | Construction | 2010 |
| Andreas Hjortland AS | | 2021 |
| Andreas Hole Holding AS | Professional & scientific | 2017 |
| Andreas Holzweiler AS | Real estate | 2014 |
| Andreas Invest AS | Real estate | 2012 |
| Andreas Jacobsen AS | Information & communication | 2026 |
| Andreas Jochum | Arts & recreation | 2004 |
| Andreas Johannessen Film AS | Information & communication | 2015 |
| Andreas Kirkeby AS | Wholesale & retail | 2020 |
| Andreas Kiste AS | Professional & scientific | 2018 |
| Andreas L Holding AS | | 2026 |
| Andreas Leknessund AS | Education | 2024 |
| Andreas Lind Invest AS | | 2020 |
| Andreas Michael Holding AS | Real estate | 2007 |
| Andreas Nordahl AS | Information & communication | 2019 |
| Andreas Og Sønn Express AS | Construction | 2012 |
| Andreas Overland AS | | 2022 |
| Andreas Ruud Holding AS | | 2023 |
| Andreas Ruuds Eftf AS | Wholesale & retail | 1992 |
| Andreas Rystad Invest AS | | 2026 |
| Andreas Ziener AS | | 2021 |
| Andreassen Billakkering AS | Other services | 2006 |
| Andreassen Dagligvare AS | Wholesale & retail | 2018 |
| Andreco AS | | 2021 |
| Andremi AS | Information & communication | 2023 |
| Andremi Holding AS | Information & communication | 2023 |
| Andres Kløvstad Holding AS | | 2019 |
| Andresen Eiendom Ans | Real estate | 1989 |
| Andresen Invest AS | | 2022 |