| Aasen Group AS | Professional & scientific | 2008 |
| Ads Airport Services AS | Transport & logistics | 1992 |
| Ads Ans | Transport & logistics | 1993 |
| Ads Eiendom Holding AS | Real estate | 2016 |
| Ads Hangarbygg 2 AS | Real estate | 2019 |
| Adsmh Aero Lease AS | Administrative & support | 2023 |
| Adsmh Management AS | Administrative & support | 2017 |
| Adsmh Shipowning I AS | Transport & logistics | 2023 |
| Adsmh Shipowning II AS | Transport & logistics | 2023 |
| Aet Sea Shuttle AS | Transport & logistics | 2012 |
| Aet Sea Shuttle II AS | Transport & logistics | 2019 |
| Agder Regnskapsservice Kai Christiansen AS | Professional & scientific | 2002 |
| Alfi Invest AS | Real estate | 2006 |
| Alv Invest AS | Health & social care | 2020 |
| Andreas Bøhler Holding AS | Health & social care | 2025 |
| Andreas Bøhler Psykologtjenester AS | Health & social care | 2025 |
| Apl Management Pte. Ltd. | Administrative & support | 2012 |
| Apl Norway AS | Mining & quarrying | 1993 |
| Arendal Boligutleie AS | Real estate | 2023 |
| Arendal Vintners AS | Wholesale & retail | 2017 |
| Arendals Dampskibsselskab AS | Transport & logistics | 2006 |
| Arntsen Holding AS | Real estate | 2001 |
| AS Hem | Real estate | 1990 |
| AS Jadak | | 1969 |
| AS Leon | Real estate | 1988 |
| Ath Fum AS | | 2024 |
| Ath Invest 2 AS | | 2023 |
| Ath Invest AS | Financial services | 2015 |
| Attol AS | Professional & scientific | 2002 |
| Bellox Ans | Health & social care | 2012 |
| Bespoke Publishing AS | Information & communication | 2022 |
| Blødekjær 6 AS | Real estate | 2005 |
| Bov Capital AS | | 2024 |
| Bov Eiendom AS | Real estate | 2018 |
| Brennvika Eiendom AS | Real estate | 2020 |
| Båtreppen AS | Manufacturing | 2018 |
| Camoján AS | | 2026 |
| Carl Olsens Tankrederi AS | Transport & logistics | 1930 |
| CHS Offshore AS | Real estate | 2023 |
| Cissone AS | Financial services | 2018 |
| Culina Holding AS | Information & communication | 2020 |
| D3 Dynamic Delicate Details AS | Administrative & support | 2018 |
| Damgløtt AS | | 2023 |
| Dammen Solutions AS | Information & communication | 2026 |
| Danor Forlag AS | Information & communication | 1991 |
| Dragoon AS | Financial services | 2006 |
| Duus & Co AS | Professional & scientific | 2017 |
| Eastwood Invest AS | | 2023 |
| Ecco Reker Havfruen AS | Agriculture & fishing | 1995 |
| Eco Analytics AS | Professional & scientific | 2016 |
| Eco Marine AS | Manufacturing | 2009 |
| Eiendomsinvest Arendal AS | Real estate | 2015 |
| El Unico AS | | 2015 |
| Elgen Invest AS | Health & social care | 1993 |
| Ellen Hagen AS | Real estate | 2014 |
| Enesi Consulting AS | Information & communication | 2020 |
| FD3M Holding AS | | 2022 |
| Fensli Invest AS | | 2023 |
| Feviktoppen AS | Real estate | 2022 |
| Flagtail AS | Information & communication | 2019 |
| Flosta Invest AS | Financial services | 2006 |
| Fløde Invest AS | | 2004 |
| Friman AS | Financial services | 2008 |
| Fube AS | | 2018 |
| Fynboer AS | Real estate | 2022 |
| Galliåsen Holding AS | | 2025 |
| Galtesund Invest AS | | 2026 |
| Gba Marine AS | Professional & scientific | 2004 |
| Gjestøy AS | Financial services | 2016 |
| Gjetmundsen AS | Professional & scientific | 2023 |
| Gnus AS | Health & social care | 2016 |
| Granveien 9 AS | Real estate | 2021 |
| Haagro Invest AS | Real estate | 2021 |
| Haandplukket AS | Wholesale & retail | 2026 |
| Hafo Stoa AS | Real estate | 2012 |
| Hapaa AS | Wholesale & retail | 2004 |
| Havsodden Invest AS | Financial services | 2018 |
| HBS Artmed AS | Health & social care | 2025 |
| Helsekode AS | Information & communication | 2026 |
| Hippen AS | Real estate | 2012 |
| Hisøy Legesenter Drift AS | Health & social care | 2020 |
| Hisøy Legesenter Eiendom AS | Health & social care | 1999 |
| Hisøy Utvikling AS | Real estate | 2016 |
| Hoj Consulting Limited Nuf | Professional & scientific | 2010 |
| Holdkraft AS | | 2020 |
| Hud-Klinikken AS | Health & social care | 2020 |
| Industriopplæring Og Sertifisering AS | Education | 2026 |
| INDUSTRITOPP10 AS | Real estate | 2023 |
| Ingemann Ellingsen AS | Wholesale & retail | 1980 |
| Interiør Consult Arendal AS | Construction | 1994 |
| Ios Eiendom AS | Real estate | 2026 |
| Isklar Holding AS | | 2026 |
| Iuellsklev 5 AS | Real estate | 2021 |
| Jahll AS | Information & communication | 2015 |
| Jan Blomquist Holding AS | Information & communication | 2007 |
| Jardinan AS | Real estate | 2016 |
| Je Tem Eiendom AS | Real estate | 2025 |
| Je Tem Utvikling AS | Real estate | 2021 |
| Jik Ellingsen AS | | 2025 |
| Jilt Invest AS | Real estate | 2021 |