| Egersund Hagesenter AS | Wholesale & retail | 2015 |
| Egersund Havnelager AS | Transport & logistics | 1986 |
| Egersund Lakk AS | Other services | 2017 |
| Egersund Lakk Eiendom AS | Real estate | 2001 |
| Egersund Landstrøm AS | Administrative & support | 2019 |
| Egersund Lavpris AS | Wholesale & retail | 1993 |
| Egersund Management AS | Manufacturing | 2007 |
| Egersund Marketing AS | Wholesale & retail | 2016 |
| Egersund Mek AS | Manufacturing | 2020 |
| Egersund Mineralvandfabrik AS | | 2005 |
| Egersund Motorbåtforening Ba | Other services | 1949 |
| Egersund Mur & Flis AS | Construction | 2019 |
| Egersund Net AS | Manufacturing | 1996 |
| Egersund Numismatikk & Antikk AS | Wholesale & retail | 2014 |
| Egersund Omsetningsgård AS | Administrative & support | 1979 |
| Egersund Pizza AS | Hospitality | 2005 |
| Egersund Plastindustri AS | Manufacturing | 2013 |
| Egersund Pubdrift AS | Hospitality | 2018 |
| Egersund Regnskap AS | Real estate | 2005 |
| Egersund Servering AS | Hospitality | 2008 |
| Egersund Servering Holding AS | Real estate | 2021 |
| Egersund Slipp AS | Construction | 2011 |
| Egersund Solutleie Ans | | 1989 |
| Egersund Taxisentral SA | Transport & logistics | 1985 |
| Egersund Tomteselskap AS | Real estate | 2014 |
| Egersund Trål AS | Manufacturing | 1991 |
| Egersundregionen SA | Professional & scientific | 2019 |
| Eiby AS | Real estate | 2021 |
| Eie Helsesenter AS | Health & social care | 2016 |
| Eie Holding AS | | 2020 |
| Eiekrysset AS | Real estate | 1994 |
| Eigersund Karosseri & Blikk AS | Manufacturing | 1974 |
| Eigersund Og Helleland Elveeigarlag SA | Real estate | 2006 |
| Eigersund Og Ogna Gjensidige Fiskefartøyassuranse | Financial services | 1931 |
| Eigersund Parkering AS | Transport & logistics | 2016 |
| Eigerøy Barnehage SA | Education | 2005 |
| Eigerøy Båt & Motor AS | Manufacturing | 2019 |
| Eigerøy Distribusjon AS | Transport & logistics | 2021 |
| Eigerøy Eiendom AS | Real estate | 2019 |
| Eigerøy Holding AS | Manufacturing | 2019 |
| Eigerøy Utleie AS | Real estate | 2025 |
| EIK1 Holding AS | Manufacturing | 2013 |
| Eiki Invest AS | | 2005 |
| Eikund AS | Manufacturing | 2016 |
| Eikunda Eiendom & Assuranse AS | Professional & scientific | 2023 |
| Eikundarsund AS | Wholesale & retail | 2024 |
| Eiå Holding AS | Professional & scientific | 2023 |
| Ekberg Eiendom AS | Wholesale & retail | 2014 |
| El-Experten AS | Construction | 2000 |
| El-Service Egersund AS | Construction | 1999 |
| El-Sikkerhet Egersund AS | Construction | 2026 |
| Elantra Elements AS | Real estate | 2026 |
| Ele AS | | 2022 |
| Elhawk AS | Information & communication | 2022 |
| Elins Gjestehus AS | Hospitality | 2024 |
| Elren AS | Construction | 2022 |
| Elto Holding AS | Professional & scientific | 2019 |
| Elvegaten 23 AS | Real estate | 2015 |
| Elvesand AS | Real estate | 2021 |
| Emil Borowiec Software AS | Information & communication | 2023 |
| Emstar Holding AS | | 2023 |
| En - Invest AS | Real estate | 2023 |
| Endre AS | Wholesale & retail | 2001 |
| Endre Eiendom AS | Real estate | 1975 |
| Endre Holding AS | Financial services | 2005 |
| Energy Innovation AS | Education | 2016 |
| Energy Innovation Equipment AS | Education | 2017 |
| Enh Tomteutvikling AS | Real estate | 2024 |
| Enida AS | Energy | 2017 |
| Epd II AS | Hospitality | 2020 |
| Epd III AS | Hospitality | 2024 |
| Erling Roaldsen Invest AS | Agriculture & fishing | 2005 |
| Ervik Shipping AS | Transport & logistics | 2000 |
| Espeland AS | Construction | 1995 |
| Espen Mathiesen Holding AS | | 2024 |
| Etman Distribusjon AS | Wholesale & retail | 1986 |
| Etman Property Services AS | Real estate | 2020 |
| Eureka Holding AS | Wholesale & retail | 2017 |
| Eventco AS | Administrative & support | 2024 |
| Evertind ASA | Wholesale & retail | 2001 |
| Eiendom og Bedriftsutvikling AS | Real estate | 1981 |
| F-F Holding AS | Real estate | 2014 |
| Fair AS | Professional & scientific | 1996 |
| Fair Teknologi AS | Information & communication | 2021 |
| Fanfisk AS | Agriculture & fishing | 2017 |
| Fardal Bil AS | Other services | 2001 |
| Fardal Eiendom AS | Real estate | 1989 |
| Fardal Holding AS | | 2023 |
| Farstad Aluminium Eiendom AS | Real estate | 2020 |
| Fatsees AS | Information & communication | 2016 |
| Favorit AS | Wholesale & retail | 1959 |
| Ferro Invest AS | Financial services | 2014 |
| Feyer AS | | 2019 |
| Feyer Consulting AS | Administrative & support | 2010 |
| Feyer Eiendom AS | Real estate | 2014 |
| Finnko AS | Real estate | 2017 |
| Fish Process Engineering AS | Wholesale & retail | 1991 |
| Fiskarvik Eiendom AS | Wholesale & retail | 2022 |
| Fiskarvik Maritime Senter AS | Real estate | 1997 |
| Fiskbyk AS | Hospitality | 2018 |