| Aktivitetssenteret Da | Other services | 2017 |
| Allslags Trappeklatrings- Og Vaktmesterhjelp AS | Administrative & support | 2021 |
| Ambla AS | Education | 2020 |
| Ame Holding AS | Financial services | 2013 |
| Andrzej W. Ostroga | Construction | 2005 |
| Baggerfjellet AS | Real estate | 2021 |
| Baggerfjellet Eiendom AS | Real estate | 2021 |
| Bakkane Eiendom AS | Real estate | 2011 |
| Baros AS | Wholesale & retail | 2015 |
| BBV 0709 Pulverlakk AS | Manufacturing | 2022 |
| Bermuda 1383 AS | Wholesale & retail | 2025 |
| Bjerke Spekemat & Delikatesse AS | Manufacturing | 1990 |
| Bklund Holding AS | | 2012 |
| Blokkebukta Camping AS | Hospitality | 2022 |
| Bloksberg Il AS | | 2022 |
| Brasil Restore Group AS | Real estate | 2011 |
| Brunlanes Service & Utleie AS | Administrative & support | 2026 |
| Brødbua Da | Wholesale & retail | 2000 |
| Brødrene Lund Bygginvest AS | Real estate | 2015 |
| Chandré Søndersrød Tunet AS | Wholesale & retail | 2022 |
| Combiwood Barkevik AS | Wholesale & retail | 1982 |
| Dab Holding AS | Real estate | 2016 |
| Dab Investment AS | Real estate | 2015 |
| Dab Utleie AS | Administrative & support | 2017 |
| Dagligvare VBT AS | Wholesale & retail | 2024 |
| Damkjær Vedlikehold AS | Construction | 2007 |
| Dynamo AS | Professional & scientific | 2022 |
| East Bay Trading AS | Wholesale & retail | 2020 |
| Egr Holding AS | | 2021 |
| Eikhaugene KLR AS | | 2022 |
| Elni AS | Arts & recreation | 2011 |
| Elvestad AS | Manufacturing | 1985 |
| Emind AS | Professional & scientific | 2007 |
| Emitech AS | Wholesale & retail | 1993 |
| Everstone Holding AS | | 2025 |
| Farsjø Boligutvikling AS | Real estate | 2023 |
| Ferdatur AS | Administrative & support | 2004 |
| Fermenta AS | | 2025 |
| Finn-Egil Hansen Kjøleteknikk AS | Construction | 1999 |
| Foldmark Holding AS | Professional & scientific | 2020 |
| FP3 Eiendom Ans | Real estate | 1996 |
| Gamle Helgeroa Marina AS | Wholesale & retail | 2012 |
| Goassist AS | Professional & scientific | 2019 |
| Great Scott AS | Financial services | 2021 |
| Gudem Byggeservice AS | Construction | 2026 |
| Gudthlandum AS | Professional & scientific | 2020 |
| Gyda Revisjon Og Regnskap AS | Professional & scientific | 2021 |
| Halvorsen Golf AS | Arts & recreation | 2025 |
| Harpiks AS | Real estate | 2012 |
| Hau-Co AS | Construction | 2006 |
| Heipetter AS | Administrative & support | 2020 |
| Helero AS | Construction | 2007 |
| Helero Maskin AS | Construction | 2025 |
| Helgeroa Badstu AS | Real estate | 2025 |
| Helgeroa Consulting AS | Construction | 1995 |
| Helgeroa Drift AS | Hospitality | 2023 |
| Helgeroa Legesenter Da | Health & social care | 2010 |
| Helgeroa Marina AS | Real estate | 1989 |
| Helgeroa Spekevarer AS | Manufacturing | 1989 |
| Helgeroafergene Da | Transport & logistics | 2015 |
| Hklw AS | | 2022 |
| Hobæk Transport & Betongpumping AS | Transport & logistics | 2014 |
| HRB 3 AS | Real estate | 2020 |
| Indak AS | Professional & scientific | 2024 |
| Initiativ AS | | 2020 |
| Investment Solutions AS | | 2024 |
| J.E.K. Holding AS | Financial services | 2005 |
| Javi Invest AS | Real estate | 2000 |
| K42 Invest AS | | 2021 |
| Kalas Holding AS | Manufacturing | 2005 |
| Krydder Invest AS | | 2020 |
| Krydder Kommunikasjon AS | Professional & scientific | 2014 |
| Ksu AS | Real estate | 2019 |
| Kvingedal Consulting AS | Professional & scientific | 2026 |
| Kvingedal Holding AS | | 2026 |
| Land & Vann AS | Administrative & support | 2024 |
| Lerangen Il AS | Professional & scientific | 2022 |
| Lia Hytte AS | Real estate | 2021 |
| Lilletorvet AS | Real estate | 1999 |
| Lindhjem Holding AS | Construction | 2015 |
| LRS Holding AS | Health & social care | 2025 |
| Lysebo VVS AS | Construction | 2004 |
| Manvik Holding AS | | 2020 |
| Marius Waale AS | Construction | 2021 |
| Mbpfix AS | Manufacturing | 2023 |
| Mcfly AS | Information & communication | 2017 |
| Munkodden Invest AS | Financial services | 2005 |
| Nesjar Finans AS | Professional & scientific | 2017 |
| Nevlungen Utvikling AS | Real estate | 2018 |
| Nilssen Trade AS | | 2022 |
| Norsk Båt Og Motortakst AS | Professional & scientific | 2013 |
| Norsk Stein-Eksport AS | Construction | 2026 |
| Nymo Industri AS | Construction | 2012 |
| Omsorgshjerte AS | Health & social care | 2025 |
| Ot Management Consulting AS | Professional & scientific | 2012 |
| Porsgrunn Pukkservice AS | Mining & quarrying | 1996 |
| Påekte AS | Health & social care | 2023 |
| R Madsen Eiendom AS | Real estate | 2003 |
| R Madsen Holding AS | Mining & quarrying | 2005 |
| Ravn Invest AS | Financial services | 2005 |