| Byens Glass-Service AS | Construction | 2018 |
| Byggfirma Løvås AS | Construction | 2023 |
| Byggmester Eide AS | Construction | 2012 |
| Byggmester Hognestad AS | Construction | 2019 |
| Byggmester Tjåland AS | Construction | 2023 |
| Bøe Eiendom AS | Real estate | 1927 |
| Bøgh Hafsø Bilforretning AS | Other services | 2001 |
| Bøgh Hafsø Eiendom AS | Real estate | 1982 |
| Bøgh Hafsø Eiendom Tengs AS | Real estate | 2009 |
| Bøgh Hafsø Invest AS | Real estate | 2013 |
| Børge Vassbø AS | Health & social care | 2016 |
| Cala Luna Holding AS | Administrative & support | 2019 |
| Camy Holding AS | Hospitality | 2011 |
| Ces Holding AS | Health & social care | 2021 |
| Charlee AS | Financial services | 2013 |
| Clear Blue Coast | Transport & logistics | 2016 |
| Cluster Invest AS | | 2026 |
| Combi Holding AS | Real estate | 2001 |
| Comfort Egersund AS | Construction | 2006 |
| Contra Ans | Wholesale & retail | 1990 |
| Coyl AS | | 2025 |
| Cyf AS | Real estate | 2022 |
| Cyf P AS | Real estate | 2025 |
| Dakai Partners AS | Professional & scientific | 2014 |
| Dalane Anleggservice AS | Administrative & support | 2007 |
| Dalane Auto AS | Wholesale & retail | 2026 |
| Dalane Beitelag SA | Agriculture & fishing | 2016 |
| Dalane Consult AS | Manufacturing | 2021 |
| Dalane Dyreklinikk AS | Professional & scientific | 2008 |
| Dalane Eiendomsservice AS | Professional & scientific | 2021 |
| Dalane Energi AS | Energy | 2016 |
| Dalane Energisalg AS | Energy | 2018 |
| Dalane Hydrogen AS | Professional & scientific | 2022 |
| Dalane Kjernekraft AS | Energy | 2025 |
| Dalane Kraft AS | Energy | 2000 |
| Dalane Lin AS | Wholesale & retail | 2005 |
| Dalane Mat SA | Agriculture & fishing | 2013 |
| Dalane Miljøverk AS | Water & waste | 2019 |
| Dalane Sandblåsing AS | Real estate | 2011 |
| Dalane Sertifisering AS | Professional & scientific | 2006 |
| Dalane Tidende AS | Information & communication | 2013 |
| Dalane Transport AS | Transport & logistics | 2020 |
| Dalane Trykk AS | Manufacturing | 2013 |
| Dalane Turvogn AS | Transport & logistics | 2010 |
| Dalane Vind AS | Energy | 2011 |
| Dalane Zoo AS | Wholesale & retail | 2001 |
| Dalanebussen Da | Transport & logistics | 2003 |
| David Holand Anlegg AS | Construction | 2025 |
| David Holand Holding AS | Construction | 2013 |
| Denko AS | Construction | 2020 |
| Dentfix A/S | Health & social care | 1988 |
| Designstrek AS | Professional & scientific | 2002 |
| Diro AS | Real estate | 2015 |
| Dish AS | Health & social care | 2011 |
| Ditt Hjem AS | | 2017 |
| Dolly Dimples Egersund AS | Hospitality | 2024 |
| DR. Birger Christensen AS | Health & social care | 2009 |
| Dressmagasinet AS | Wholesale & retail | 2004 |
| Dybing Eiendom AS | Real estate | 1992 |
| Dyrnes Invest AS | Real estate | 2005 |
| Dyrsand Bygg AS | Construction | 2014 |
| Dyrsand Utvikling AS | Real estate | 2021 |
| Dyrøyne AS | Agriculture & fishing | 2017 |
| E. Løyning Maskin AS | Administrative & support | 2019 |
| E. Nevland AS | Administrative & support | 2020 |
| Ebg Invest AS | Real estate | 2024 |
| Ecdis Consult AS | Professional & scientific | 2000 |
| Ecosolid AS | Professional & scientific | 2024 |
| Ede Holding AS | | 2019 |
| Edlandsporten SV AS | Construction | 2006 |
| Ee Eiendom AS | Real estate | 2024 |
| Eeu AS | Transport & logistics | 1998 |
| Effect Leadership AS | Professional & scientific | 2001 |
| Efh Holding AS | Financial services | 2024 |
| Egant AS | Wholesale & retail | 1997 |
| Eger Bygg AS | Construction | 2014 |
| Eger Bygg Eiendom AS | Real estate | 2016 |
| Eger Bygg Holding AS | Real estate | 2003 |
| Eger Frisør AS | Other services | 2023 |
| Eger Legene AS | Health & social care | 2022 |
| Eger Optikk AS | Wholesale & retail | 2005 |
| Eger Sko AS | Wholesale & retail | 1975 |
| Eger Stormarked AS | Real estate | 2009 |
| Egerconsult AS | Professional & scientific | 2006 |
| Egersound AS | Information & communication | 2023 |
| Egersund Aqua AS | Agriculture & fishing | 2002 |
| Egersund Betongindustri AS | Manufacturing | 1986 |
| Egersund Betongteknikk AS | Manufacturing | 2006 |
| Egersund Bilberging AS | Transport & logistics | 2008 |
| Egersund Bilvask AS | Other services | 2023 |
| Egersund Bilverksted AS | Other services | 2018 |
| Egersund Blomster AS | Wholesale & retail | 2008 |
| Egersund Eiendom AS | Real estate | 2010 |
| Egersund Eiendomsmegling AS | Real estate | 2025 |
| Egersund Eiendomsutvikling AS | Real estate | 2006 |
| Egersund Fryseri AS | Transport & logistics | 2017 |
| Egersund Global Matglede AS | Wholesale & retail | 2024 |
| Egersund Group AS | Manufacturing | 1998 |
| Egersund Group Eiendom AS | Real estate | 2018 |
| Egersund Group Fiskeri AS | Manufacturing | 2018 |