| 1028 Hyttedrift AS | Water & waste | 2019 |
| 1708 Holding AS | Real estate | 2005 |
| 368 Kapital AS | | 2026 |
| Aarhus Transport AS | Transport & logistics | 2006 |
| Acufriend AS | Wholesale & retail | 2006 |
| Advokatfirmaet Holm Da | Professional & scientific | 1998 |
| Ahmo Invest AS | | 2026 |
| Aktiv Bane Drift AS | Administrative & support | 2017 |
| Amokamok AS | Wholesale & retail | 2021 |
| Amundsli Eiendom AS | Professional & scientific | 2009 |
| Anders Eidsgaard AS | Real estate | 1998 |
| Anlegg Og Vedlikehold Gol AS | Construction | 2007 |
| Anleggsbistand AS | Professional & scientific | 2018 |
| Arb Operations and Advertisements AS | Professional & scientific | 2022 |
| Ares Detection AS | Professional & scientific | 2014 |
| Ares Invest AS | Real estate | 2000 |
| Ares Turbine AS | Professional & scientific | 2008 |
| Ares Utleie AS | Hospitality | 2005 |
| Artome AS | Real estate | 2000 |
| Asberg AS | Professional & scientific | 2014 |
| Atgbygg AS | Construction | 2026 |
| Auenhauglie Stølslag SA | Real estate | 2016 |
| Auenhauglievegen 1039 AS | Hospitality | 2025 |
| Autopark AS | Professional & scientific | 1988 |
| B Stuvebakken AS | Construction | 2000 |
| B Wiik Holding AS | | 2016 |
| B.Opheim AS | Wholesale & retail | 2020 |
| BB Invest AS | Financial services | 2005 |
| BB Rekruttering AS | Administrative & support | 2026 |
| BB Xpress AS | Transport & logistics | 2024 |
| Besi Lokaj Holding AS | | 2022 |
| Bie Bygg AS | Construction | 2015 |
| Bims AS | Wholesale & retail | 1980 |
| Bjerke Nettbygg AS | Construction | 2014 |
| Bjødnalie AS | Real estate | 2005 |
| Bjødnalie Infrastruktur AS | Construction | 2007 |
| Bjødnalie Utvikling SA | Real estate | 2017 |
| Bjørnebråten Bygg AS | Construction | 2017 |
| Bjørnsrud & Espedokken Ans | Agriculture & fishing | 1999 |
| Bleiktvedt AS | Construction | 2010 |
| Blessed Barbershop Gol AS | Other services | 2025 |
| Blikkhuset Eiendom AS | Real estate | 2019 |
| Blikkhuset Hallingdal AS | Manufacturing | 1989 |
| Blingsmo AS | | 2019 |
| Blomsterspira Gol AS | Wholesale & retail | 2017 |
| Brekko Eiendom AS | Administrative & support | 2005 |
| Brenna Eiendom AS | Real estate | 2014 |
| Brenna Salg Og Utleie AS | Administrative & support | 2013 |
| Brenno Bygg AS | Construction | 2021 |
| Bruse AS | Information & communication | 2016 |
| Brustad Kafedrift AS | Hospitality | 2012 |
| Brøto Transport AS | Transport & logistics | 1994 |
| Bsa Holding AS | | 2025 |
| Bualie Vann-Og Avløp AS | Water & waste | 2005 |
| By Arntzen AS | Professional & scientific | 2023 |
| Bygg Team AS | Construction | 2001 |
| Bygghjelp AS | Construction | 2015 |
| Byggmesteren Hallingdal AS | Construction | 2015 |
| Børt's Fusion Restaurant AS | Hospitality | 2021 |
| C Og C AS | Administrative & support | 2018 |
| Camper Norge AS | Wholesale & retail | 2018 |
| Capello Frisører AS | Other services | 2008 |
| Cryptosovereign Norge AS | Information & communication | 2025 |
| Dagny Møllerplass AS | Administrative & support | 2024 |
| Dalabakken AS | Real estate | 2001 |
| Dalevegen AS | Real estate | 2019 |
| Dalføre Viltforvaltning SA | Real estate | 1975 |
| Dano Eiendom AS | Real estate | 2012 |
| De Eldres Boligklubb Gol AS | Real estate | 2023 |
| De Geus Eiendom AS | Real estate | 2006 |
| Desire Frisørsalong AS | Other services | 1998 |
| Docalali AS | | 2024 |
| Driv Energi Hallingdal AS | Transport & logistics | 2000 |
| Dyrlege Brenna AS | Professional & scientific | 2022 |
| Ehb Motorsport AS | Professional & scientific | 2026 |
| Eib Holding AS | | 2026 |
| Eid Næringsdrift AS | Real estate | 2005 |
| Eidsgaard Bygg AS | Real estate | 2026 |
| Eidsgaard Eiendom AS | Real estate | 2005 |
| Eigarskifter AS | Professional & scientific | 2023 |
| Eiklesvegen 28 AS | Real estate | 2024 |
| Eiklid Elektro AS | Construction | 2006 |
| Eiknes Bil AS | Wholesale & retail | 2014 |
| Eldstad Entreprenør AS | Construction | 2005 |
| Eldstad Utvikling AS | Real estate | 2005 |
| Elektrikerservice Hallingdal AS | Construction | 2008 |
| Elisabeth Skaane AS | Wholesale & retail | 2014 |
| Elvevegen 10 Eiendom AS | Real estate | 1988 |
| Elvevegen 13 AS | Real estate | 2017 |
| Elvevegen 16 AS | Real estate | 2006 |
| Elvevegen 25 AS | Real estate | 2024 |
| Elvevegen 7 AS | Real estate | 2015 |
| Elviria Holding AS | Financial services | 2005 |
| Emil Og Ida Da | Wholesale & retail | 2000 |
| Endug Eiendom AS | Real estate | 2023 |
| Engvik Gulvstøp AS | Construction | 2023 |
| Entreprenørservice Hallingdal AS | Administrative & support | 2016 |
| Erland Slaatto Eiendom AS | Real estate | 2008 |
| Eurobygget AS | Real estate | 2014 |
| Fagervoll AS | Real estate | 2023 |