| 2HENDER AS | Wholesale & retail | 2022 |
| Aaserud Eiendom AS | Real estate | 2005 |
| Aasheim Eiendomsdrift AS | Real estate | 2018 |
| Aasheim Holding AS | Manufacturing | 2005 |
| Aasheim Kjøtt AS | Manufacturing | 1993 |
| Abrix AS | Professional & scientific | 2005 |
| Adiga AS | Professional & scientific | 2024 |
| Af Contur & Isachsen Ans | Construction | 2026 |
| Akelia AS | Administrative & support | 2018 |
| Akelius AS | Administrative & support | 2018 |
| Aksen AS | Real estate | 2017 |
| Aktiv Bedriftsservice AS | Administrative & support | 2009 |
| Altforhuset AS | Information & communication | 2023 |
| Alti Skadedyr AS | Administrative & support | 2022 |
| Amandeep Sandhu Holding AS | | 2023 |
| Anleggsgartner Thorsby AS | Administrative & support | 2012 |
| Annonseproduksjon AS | Professional & scientific | 2014 |
| Are Damli Holding AS | | 2024 |
| Arild Bergem AS | Wholesale & retail | 2005 |
| Arild Holding AS | Financial services | 2005 |
| Arnestad&Co AS | Administrative & support | 2025 |
| Arnika AS | Wholesale & retail | 1996 |
| Arro Elektro AS | Construction | 1998 |
| Arta Design AS | Professional & scientific | 2019 |
| Aru Lyd AS | Arts & recreation | 2023 |
| AS Bjørn Kapital | | 2018 |
| AS Solberg Spinderi | Wholesale & retail | 1990 |
| At Investments AS | Wholesale & retail | 2020 |
| Aulie Lompebakeri AS | Manufacturing | 1999 |
| Auro AS | Manufacturing | 2002 |
| Auto RS AS | Wholesale & retail | 2023 |
| Avotek AS | Construction | 2020 |
| B-Solid AS | Professional & scientific | 2023 |
| B6 Invest AS | Financial services | 2023 |
| Bakeri Eiendom AS | Real estate | 2004 |
| Bakeri Holding AS | Manufacturing | 2005 |
| Bastian Holding AS | Hospitality | 2017 |
| BB Eiendomutvikling AS | Real estate | 2010 |
| Bente Bendiksen Holding AS | | 2018 |
| Bentsen Geo Consulting AS | Professional & scientific | 2017 |
| Bentsen Logistikk AS | Transport & logistics | 2015 |
| Berg's Cafe & Matbar AS | Hospitality | 2008 |
| Bergveien 16 AS | Real estate | 2022 |
| Bestena AS | Construction | 2014 |
| Beyzat Barbershop AS | Other services | 2023 |
| Bi-Bo Invest AS | Real estate | 2016 |
| Bilkonsulenten.No Da | Wholesale & retail | 2008 |
| Borgersen Utvikling AS | Construction | 2007 |
| Bovitech AS | Construction | 2024 |
| Brage Medical AS | Wholesale & retail | 2005 |
| Brurberg Drift AS | Professional & scientific | 2025 |
| Brurberg Eiendom AS | Real estate | 2012 |
| Buskerud Byggsystemer AS | Administrative & support | 2025 |
| Buskerud Karosseri AS | Other services | 2019 |
| Butikkdrift Khan Charr AS | Wholesale & retail | 2020 |
| Byggz AS | Construction | 2026 |
| Campus Scandinavia AS | Wholesale & retail | 2006 |
| Caninefit AS | Other services | 2018 |
| Choppi AS | Wholesale & retail | 2021 |
| Cirak Demirel AS | Wholesale & retail | 2026 |
| CNW AS | | 2022 |
| Cooling Partner AS | Manufacturing | 2004 |
| Datateket AS | Information & communication | 1997 |
| Debe Norge AS | Wholesale & retail | 2016 |
| Dentalutleie AS | Administrative & support | 2018 |
| Di - Aka Eiendom AS | Real estate | 2021 |
| Diabas Hytter AS | Real estate | 2018 |
| Din Malermester AS | Construction | 2020 |
| Ditt Drømmehjem AS | Professional & scientific | 2014 |
| Drammen Hundepark AS | Wholesale & retail | 2021 |
| Drammen Miljøpark AS | Real estate | 2021 |
| Drammen Rørsenter AS | Construction | 2022 |
| Drammen Tilhengersenter AS | Administrative & support | 2012 |
| Draugen Invest AS | | 2022 |
| Dream Fashion Import AS | Wholesale & retail | 2008 |
| Dynova AS | Professional & scientific | 2012 |
| Dyrgravveien AS | Real estate | 2018 |
| Ea Eiker Eiendom AS | Real estate | 2025 |
| Ea Eiker Holding AS | | 2025 |
| Eastern Trading AS | Wholesale & retail | 2005 |
| Eduro AS | Professional & scientific | 2021 |
| Eide Eiendomsservice AS | Professional & scientific | 2014 |
| Eiker Bygg Og Eiendom AS | Construction | 2006 |
| Eiker Eba AS | Real estate | 2009 |
| Eiker Tak & Membran AS | Construction | 2011 |
| Eiker Tak Og Blikk AS | Construction | 2014 |
| Eizenberger Invest AS | Wholesale & retail | 2022 |
| Eldurai AS | Information & communication | 2025 |
| Elektriker Øst AS | Construction | 2005 |
| Elkompaniet Da | Wholesale & retail | 2004 |
| Esiuland AS | Wholesale & retail | 2025 |
| Espressofoto AS | Professional & scientific | 2022 |
| Euro Tekstil AS | Wholesale & retail | 2019 |
| Evas Grønne Hage AS | Professional & scientific | 2019 |
| Evra AS | Financial services | 2005 |
| Fallaks AS | Professional & scientific | 2006 |
| Fam. Invest AS | Real estate | 2021 |
| Farmers Invest Holding AS | Real estate | 2024 |
| Ferdinand Blomster AS | Wholesale & retail | 2013 |
| FF Invest Norge AS | Wholesale & retail | 2022 |