| Blix Byggefirma AS | Construction | 2018 |
| Blåseisolering Sør AS | Construction | 2015 |
| Boekhout Engineering AS | Professional & scientific | 2026 |
| Bolek AS | Construction | 2014 |
| BOLIG24 AS | Real estate | 2018 |
| Bolighjelp AS | Administrative & support | 2023 |
| Boligservice Agder AS | Construction | 2019 |
| Boston Holding AS | Administrative & support | 2015 |
| Bowl AS | Information & communication | 2023 |
| Breis Bygg AS | Construction | 2019 |
| Brenne Bas Da | Agriculture & fishing | 2023 |
| Brigittes Velvære AS | Other services | 2023 |
| Brodwall Helsetjenester AS | Health & social care | 2017 |
| Brødr Klepp AS | Construction | 2001 |
| Brønningsmyr 1 AS | Real estate | 2020 |
| Brøvig AS | Manufacturing | 1989 |
| Brøvig Storbilvask AS | Other services | 2021 |
| BTC Sport AS | Wholesale & retail | 2015 |
| Bygg & Skjærgårdstjeneste AS | Construction | 2005 |
| Bygg & Vedlikehold Sør AS | Construction | 2025 |
| Bygg Og Fuktteknikk AS | Professional & scientific | 2026 |
| Byggfirma Glenn Arne Githmark AS | Construction | 2017 |
| Byggfirma Håvard Thomassen AS | Construction | 2017 |
| Byggmester Frode Lauvnes AS | Construction | 2013 |
| Byggmester Ole Morten Johannessen AS | Construction | 1997 |
| Byttingsmyr Holding AS | | 2020 |
| Båt Og Motor Sør AS | Manufacturing | 2023 |
| Bølgebarna AS | Education | 2025 |
| Bølgen Frisør Lillesand AS | Other services | 1996 |
| Børscompagniet AS | Wholesale & retail | 1984 |
| C Nor AS | Wholesale & retail | 1998 |
| C.H. Hansen Transport AS | Transport & logistics | 2008 |
| Calm AS | Health & social care | 2021 |
| Candela Consult AS | Professional & scientific | 2026 |
| Ceciliets AS | Arts & recreation | 2012 |
| Cmdgruppen AS | Professional & scientific | 2023 |
| Cmdhub AS | Information & communication | 2025 |
| Commitas AS | Professional & scientific | 2001 |
| Contina AS | Health & social care | 2021 |
| Corsult AS | Health & social care | 2017 |
| Corvus Holding AS | Real estate | 2010 |
| Cosmoneering AS | Professional & scientific | 2020 |
| Cosmos Holding AS | Professional & scientific | 2020 |
| Creds AS | Wholesale & retail | 2024 |
| Custom Auto Høvåg AS | Other services | 2023 |
| Dec Holding AS | | 2026 |
| Degermann Transport AS | Water & waste | 2004 |
| Den Lille Husfabrikken AS | Construction | 2026 |
| Den Store Blaa Hvalen AS | | 2008 |
| Dentalkjøp AS | Wholesale & retail | 1991 |
| DK Holding AS | Wholesale & retail | 2011 |
| Dma Property AS | Real estate | 2019 |
| Dropped IT Holding AS | | 2026 |
| Dukat Eiendom Invest I AS | Real estate | 2018 |
| Dukat Eiendom Invest II AS | Real estate | 2018 |
| Dyre Halses Gate 9 AS | Real estate | 2006 |
| Dyrholm Elektronikk AS | Manufacturing | 2020 |
| Dyvik Utvikling AS | Real estate | 2016 |
| E B Holding AS | | 2021 |
| E-18 Hagesenter AS | Construction | 2022 |
| Eide Eiendom AS | Real estate | 1996 |
| Eikeland Trafikkskole AS | Education | 2012 |
| Ein Eiendom AS | Real estate | 2015 |
| Einar Sundsdal AS | Construction | 1989 |
| Eirik Sars Bygg & Eiendom AS | Construction | 2017 |
| Eivind Kristiansen Holding AS | | 2023 |
| Ekstraservice AS | Administrative & support | 2023 |
| Elite Systemer AS | Information & communication | 2014 |
| Else Sprossa Rønnevig AS | Manufacturing | 1991 |
| Elsport & Fritid AS | Wholesale & retail | 2018 |
| Eluzai AS | Real estate | 2024 |
| Endresen Bygg Ans | Construction | 2005 |
| Endresen Eiendom Sør AS | | 2010 |
| Energi Sør AS | Wholesale & retail | 2009 |
| Energycode AS | Professional & scientific | 2023 |
| Enersen Invest AS | Real estate | 2025 |
| Engelskjønn Agentur AS | Wholesale & retail | 2024 |
| Engesland Holding AS | | 2019 |
| Engfolk AS | | 2021 |
| Etappebikes AS | Wholesale & retail | 2015 |
| Etcona AS | | 2019 |
| Ettevann AS | | 2025 |
| Evjen's Rørleggerservice AS | Construction | 2019 |
| Exbo Holding AS | Real estate | 2017 |
| Egeland Plast A/S | Manufacturing | 1983 |
| F & J Invest AS | Financial services | 2009 |
| F&M Import AS | Wholesale & retail | 2022 |
| Fagerheimsveien AS | Real estate | 2019 |
| Falkereiret AS | | 2024 |
| Fame Da | Wholesale & retail | 1986 |
| Fammen AS | Wholesale & retail | 2022 |
| Fauskes Eiendom AS | Real estate | 2019 |
| Fauskes Holding AS | Construction | 2015 |
| Fauskes Malerfirma AS | Construction | 2014 |
| Fernheim AS | | 2018 |
| Finden Maskin AS | Construction | 2021 |
| Fiskerihavna Risør AS | Real estate | 1999 |
| Fiskher AS | Information & communication | 2019 |
| Fiskher Coastguard Tech AS | Information & communication | 2023 |
| Fiskher Holding AS | | 2025 |