| Eimavite Eiendom 1 AS | Real estate | 2021 |
| Eimavite Holding AS | Construction | 2021 |
| Einar Johnsens Eiendomsselskap AS | Real estate | 1968 |
| Einersen Gull AS | Wholesale & retail | 1993 |
| Ekhaug AS | Real estate | 2016 |
| Ekonomi AS | Professional & scientific | 1998 |
| Ekra Glass AS | Construction | 2001 |
| Elad AS | Wholesale & retail | 2026 |
| Elektronikkservice S Rudnes & Co Ans | Manufacturing | 1979 |
| Elektroverkstedet AS | Other services | 1989 |
| Elgane Vind AS | Energy | 2021 |
| Eltakst Sør AS | Professional & scientific | 1998 |
| Eltec Installasjon AS | Construction | 2003 |
| Elvara AS | Wholesale & retail | 2026 |
| Elvending AS | Manufacturing | 2024 |
| Emballasje Partner AS | Wholesale & retail | 2013 |
| Energos Property Akland AS | Real estate | 2003 |
| Energos Technology AS | Manufacturing | 2016 |
| Enervise VVS AS | Professional & scientific | 2026 |
| Engekjærveien 34-36 AS | Real estate | 2015 |
| Enghaven Barnehage AS | Education | 2001 |
| Enkel Invest AS | | 2025 |
| Enkl AS | Real estate | 2026 |
| Enna AS | Information & communication | 1987 |
| Entreprenord AS | Construction | 2015 |
| Ep Anlegg AS | Construction | 2011 |
| Eracom AS | Wholesale & retail | 2010 |
| Ere Entreprenør AS | Construction | 2017 |
| Ere Holding AS | Real estate | 2020 |
| Ersk Holding AS | Education | 2019 |
| Esn Invest AS | | 2017 |
| Esper AS | Professional & scientific | 2020 |
| Euro Marketing AS | Wholesale & retail | 1941 |
| Euro Steel Norge AS | Wholesale & retail | 1994 |
| Ev Batteri Elektro AS | Other services | 2024 |
| Evig Min AS | Wholesale & retail | 2025 |
| Ex-Ride AS | Wholesale & retail | 2026 |
| Expg AS | Information & communication | 2019 |
| Eyde Energipark 3 AS | Real estate | 2021 |
| Eyde Energipark Holding AS | Real estate | 2021 |
| Eyde Material Park Development AS | Construction | 2023 |
| Eyde Mooring Solutions AS | Professional & scientific | 2018 |
| Eyde-Gården AS | Real estate | 2023 |
| Faber & Co AS | Manufacturing | 2007 |
| Factlines Holding AS | Professional & scientific | 2021 |
| Fade Professional Barbershop AS | Other services | 2022 |
| Faktotum Invest AS | Real estate | 2006 |
| Fam Bygg AS | Construction | 2022 |
| Fasting Outdoor AS | Information & communication | 2003 |
| Feelgood Arendal AS | Arts & recreation | 2025 |
| Feelgood Hundemassasje AS | Agriculture & fishing | 2016 |
| Fengselshotellet AS | Hospitality | 2023 |
| Fengslet 1862 AS | Real estate | 2021 |
| Ferdigmat AS | Manufacturing | 1970 |
| Ferhad Usefpur AS | Wholesale & retail | 2022 |
| Ferm AS | Real estate | 1994 |
| Fevik Bygg Og Eiendom AS | Construction | 2007 |
| Fianoa AS | Wholesale & retail | 2020 |
| Figa Våtrom AS | Construction | 2014 |
| Finoma AS | Other services | 2020 |
| Firo Restaurantdrift AS | Hospitality | 2012 |
| Fiskebrygga AS | Wholesale & retail | 1992 |
| Fjell Og Metall AS | Construction | 2021 |
| Fjellsøygard AS | Agriculture & fishing | 2025 |
| Flentec AS | Professional & scientific | 2025 |
| Flis I Sør AS | | 2012 |
| Flisespesialisten Arendal AS | Wholesale & retail | 2021 |
| Fludium AS | Wholesale & retail | 2014 |
| Fløybyen AS | Real estate | 2013 |
| FMC AS | Professional & scientific | 2022 |
| Folkebad Drift AS | Arts & recreation | 2019 |
| Folkebad Holding AS | | 2026 |
| Forbedringspartner AS | Wholesale & retail | 2003 |
| Forlagshuset Enerstvedt AS | Information & communication | 2024 |
| Formofoss 24/7 AS | Real estate | 2016 |
| Formtoppen Boligutleie 2 AS | Real estate | 2025 |
| Formtoppen Boligutleie AS | Real estate | 2014 |
| Fortitude AS | Information & communication | 2019 |
| Fortivo AS | Professional & scientific | 2025 |
| Fossbekk Hundesportssenter Ans | Real estate | 1990 |
| Fossekallene AS | Financial services | 2013 |
| Fotoservice AS | Wholesale & retail | 1998 |
| Frameworks AS | Information & communication | 2002 |
| Fredlyveien AS | | 2018 |
| Fredrik Zachariassen AS | Financial services | 2007 |
| Freidig Wind AS | Administrative & support | 2022 |
| Freyja Energy AS | Energy | 2024 |
| Friergangen 3 AS | Real estate | 1997 |
| Friholmen AS | Real estate | 1925 |
| Friholmsgate 3 AS | Real estate | 2016 |
| Frisk Bris Holding AS | Manufacturing | 2013 |
| Frode Nylen Holding AS | Financial services | 2017 |
| Frode Venemyr AS | Real estate | 2015 |
| Frolandsveien 2B AS | Real estate | 2024 |
| Frolandsveien 554 AS | Real estate | 2023 |
| Frolandsveien 558 AS | Real estate | 2020 |
| Front Energy AS | Professional & scientific | 2017 |
| Froru Eiendom AS | Real estate | 2013 |
| Froru Invest Da | Real estate | 2007 |
| Fryd Og Gammen AS | Wholesale & retail | 2022 |