| 2 Soler AS | Wholesale & retail | 2013 |
| A Haraldsen Holding AS | | 2025 |
| A Helland Holding AS | Real estate | 2024 |
| A Larsen Holding AS | Real estate | 1976 |
| A Skalstad AS | Real estate | 1947 |
| A-L Invest AS | Real estate | 2016 |
| A-Packaging AS | Wholesale & retail | 2015 |
| A12.NO AS | Professional & scientific | 2012 |
| Aarenes Eiendom AS | Real estate | 1981 |
| Aat Shipinvest AS | Transport & logistics | 2014 |
| AB Interiør Design Nuf | Professional & scientific | 2009 |
| Abeli Energi AS | Real estate | 2015 |
| Abeli Holding AS | Real estate | 2010 |
| Abelnes Eiendom AS | Real estate | 2008 |
| Abelnes Havn Og Logistikk AS | Real estate | 2017 |
| Abelnes Marina Høvding AS | Real estate | 2018 |
| Absolutt Reklame AS | Professional & scientific | 2011 |
| Adapt Eco AS | Manufacturing | 2022 |
| Advokatfirmaet Andersen & Snerthammer AS | Professional & scientific | 1998 |
| Aeron AS | Construction | 1985 |
| Agder Droneservice AS | Professional & scientific | 2022 |
| Agder Fiskehelsetjeneste AS | Professional & scientific | 1990 |
| Agder Kysten AS | Construction | 2026 |
| Agder Rør Og Anleggservice AS | Construction | 2021 |
| Agder Tunnelservice AS | Manufacturing | 2018 |
| Agh Invest AS | Real estate | 2007 |
| Ahead Norge AS | Education | 2003 |
| Aj Solution AS | Professional & scientific | 2020 |
| Alfr Sand AS | Wholesale & retail | 1960 |
| Alok AS | Construction | 2026 |
| Alsø AS | Real estate | 1993 |
| Altweb Da | Information & communication | 2000 |
| Amn Consulting AS | Professional & scientific | 2005 |
| Amv Newco AS | Professional & scientific | 2025 |
| Anders Halvorsen AS | Real estate | 1973 |
| Andersen Group AS | Manufacturing | 2024 |
| Andersen Holding AS | Real estate | 1987 |
| Andersen Invest AS | Financial services | 2002 |
| Andersen Mek Verksted AS | Manufacturing | 1987 |
| Andreas Kristensen Transport AS | Transport & logistics | 2017 |
| Andys AS | Hospitality | 2023 |
| Angras AS | Financial services | 2005 |
| Anlegg Og Tunnel Elektro AS | Manufacturing | 2025 |
| Ans Flekkefjord Import & Dekkomsetning | | 1990 |
| Aramis Flekkefjord AS | Professional & scientific | 2005 |
| Arctic Seaweed AS | Agriculture & fishing | 2016 |
| Arctic Seaweed Holding AS | Agriculture & fishing | 2020 |
| Arems Invest AS | | 2022 |
| Arnhilds Frisør AS | Other services | 2007 |
| Aroydee Saibut AS | Hospitality | 2026 |
| Arundo AS | Transport & logistics | 2012 |
| AS Babylon' | Hospitality | 2016 |
| AS Hovden | Hospitality | 1964 |
| AS Penny Lane - Top Shop | Wholesale & retail | 2007 |
| Astri Helen Invest AS | | 2021 |
| Austadvika AS | Real estate | 2016 |
| Av Service AS | Administrative & support | 2017 |
| Avenir AS | | 1923 |
| Avisen Agder AS | Information & communication | 2015 |
| Avisen Agder Eiendom AS | Real estate | 2014 |
| Axel Muehlan Holding AS | Health & social care | 2014 |
| Axel Sunde Holding AS | | 2026 |
| B&N Invest AS | Professional & scientific | 2008 |
| Babcock Wanson Nordics AS | Manufacturing | 2022 |
| Bakken TH & Co AS | Real estate | 1937 |
| Bancs AS | Information & communication | 2021 |
| Be Liland AS | Construction | 2021 |
| Beit Ema AS | Real estate | 2013 |
| Berg Navneskilt AS | Manufacturing | 2012 |
| Berg North Digital AS | Information & communication | 2023 |
| Bergnordesign AS | Manufacturing | 1989 |
| BHT Sørvest Norge SA | Health & social care | 1987 |
| Bil & Dekkhuset Sunde Autosenter AS | Wholesale & retail | 1987 |
| Birkeland Regnskap AS | Professional & scientific | 2005 |
| Birkis Holding AS | | 2024 |
| Bjolo AS | Real estate | 2006 |
| Blå Driv AS | Professional & scientific | 2026 |
| BM Eiendominvest AS | Real estate | 2024 |
| BMH Holding AS | Real estate | 2014 |
| Boiler AS | | 2023 |
| Boiler Group AS | | 2023 |
| Boilergreen AS | Real estate | 2023 |
| Boilerrent AS | Administrative & support | 2018 |
| Boilertech AS | Manufacturing | 2016 |
| Borealis Digital AS | Information & communication | 2023 |
| Borko AS | Real estate | 2017 |
| Box Flikka AS | Arts & recreation | 2015 |
| BP Rental AS | Administrative & support | 2021 |
| Brannpartner AS | Professional & scientific | 2018 |
| Breas TT AS | Construction | 2021 |
| Breibakk Invest Da | | 2000 |
| Bridge I Norge AS | Information & communication | 1998 |
| Brklyn AS | Professional & scientific | 2010 |
| Brklyn Eiendom AS | Real estate | 2020 |
| Brklyn Holding AS | Professional & scientific | 2017 |
| Brogaten 17 AS | Real estate | 2023 |
| Brogaten 25 AS | Real estate | 2023 |
| Brogaten 46 AS | Real estate | 2023 |
| Bruhjell & Sirnes AS | Construction | 2004 |
| Bruhjell Holding AS | Real estate | 2024 |