| Agb Holding AS | | 2023 |
| Alexander Adriaanse AS | Wholesale & retail | 2019 |
| Asker Hus AS | | 2016 |
| Bjørnar Dokka Holding AS | | 2018 |
| Ble Eiendom Bio AS | Water & waste | 2013 |
| Ble Eiendomsutvikling AS | Real estate | 2006 |
| Ble Fjellskog AS | Real estate | 2005 |
| Blefjell Entreprenør AS | Construction | 2019 |
| Blefjell Fritid AS | Real estate | 2005 |
| Blefjell Utvikling SA | Real estate | 2001 |
| Blefjell Vann Og Avløpsselskap AS | Water & waste | 2006 |
| Blefjell Villreinutvalg SA | Agriculture & fishing | 1983 |
| Blefjellheisen AS | Arts & recreation | 1970 |
| Blestølen AS | Real estate | 2021 |
| Borge Bygg Og Anlegg AS | Construction | 2018 |
| Bottolfs Holding AS | Agriculture & fishing | 2023 |
| Bottolfs Skogsdrift AS | Agriculture & fishing | 2023 |
| Chip Teknikk AS | Professional & scientific | 1988 |
| Combover Hair AS | Other services | 2014 |
| DG Bolig AS | Real estate | 2012 |
| Eh-Gruppen AS | Agriculture & fishing | 2022 |
| Fine Blend SA | Arts & recreation | 2015 |
| Flesberg Energi AS | Energy | 2000 |
| Flesberg Regnskapskontor SA | Professional & scientific | 1971 |
| Flesberg Utvikling AS | Real estate | 2022 |
| FR Mesterbygg AS | Construction | 2025 |
| Friluftsbua AS | Wholesale & retail | 2018 |
| Gampeflåveien Da | Construction | 2009 |
| Gjellerud Graving Og Transport Ans | Construction | 1997 |
| Haugen Utvikling AS | Professional & scientific | 2019 |
| Høimyr Og Barlindhaug AS | Construction | 1998 |
| Ina Rustand Holding AS | | 2022 |
| Invida AS | Professional & scientific | 2004 |
| Ja Eller Nei AS | | 2023 |
| Jan Åge Sandbæk AS | Agriculture & fishing | 1996 |
| Jonrog AS | Real estate | 2000 |
| Koia Group AS | Hospitality | 2024 |
| Krokvegen AS | Real estate | 2026 |
| Lampeland Anlegg AS | Construction | 2017 |
| Lampeland Bensinstasjon AS | Wholesale & retail | 1987 |
| Lampeland Eiendom AS | Real estate | 2002 |
| Lampeland Fysioterapi & Helse Da | Health & social care | 2019 |
| Lampeland Hotell AS | Hospitality | 2009 |
| Lampeland Sentrumsutvikling AS | Real estate | 2022 |
| Lars Simensen AS | Real estate | 2009 |
| Le. Invest AS | | 2022 |
| Liland Textilhus AS | Wholesale & retail | 1998 |
| Lindset AS | Construction | 2025 |
| Lyngdalsvassdraget Fiskeforvaltning SA | Real estate | 2025 |
| MTV Holding AS | | 2026 |
| Nordre Åsland AS | Real estate | 2005 |
| Numedal Fiber AS | Information & communication | 2005 |
| Numedal Legesenter Ans | Health & social care | 2024 |
| Nå Utvikling AS | Real estate | 2022 |
| O. Kjenås AS | Other services | 2017 |
| Profil Invest AS | Real estate | 2007 |
| Profil Trebygg AS | Construction | 2005 |
| R1 Entreprenør AS | Construction | 2006 |
| Rava Ble SA | Water & waste | 2010 |
| Rustand Holm Eiendom Ans | Real estate | 1998 |
| Rustandlia Vei SA | Real estate | 2010 |
| Smedsrud Ans | Agriculture & fishing | 2014 |
| Strutåsen AS | Hospitality | 2010 |
| Svein Teksle Holding AS | | 2024 |
| Søndre Blefjell Fiskelag SA | Arts & recreation | 2022 |
| Søndre Blefjellveien SA | Real estate | 1975 |
| Søndre Garås Vannselskap AS | Water & waste | 2021 |
| Teksle & Tveito Elektro AS | Construction | 2024 |
| Terje Rustand Transport AS | Transport & logistics | 2019 |
| Tit Holding AS | Real estate | 2012 |
| Tonje Rustand Holding AS | | 2022 |
| Trilo Invest AS | Agriculture & fishing | 2022 |
| TTM Holding AS | Real estate | 2018 |
| Tveiten Eiendom AS | Energy | 1993 |
| Underberget Vannselskap Ba | Water & waste | 2007 |
| Vestre Berget AS | Real estate | 2022 |
| Vestre Berget Holding AS | Water & waste | 2022 |
| Vestre Berget Vannselskap AS | Water & waste | 2022 |