| A Wolls Eftf | | 1976 |
| Afterglow Salon AS | Other services | 2024 |
| Agroservice AS | Agriculture & fishing | 2017 |
| Agroservice Utleie AS | Administrative & support | 2021 |
| Aj Hytte AS | Construction | 2026 |
| Allmekk AS | Other services | 2026 |
| Alptec AS | Manufacturing | 1996 |
| Andersen Bygg AS | Real estate | 1999 |
| Any Excuse to Ride Norway AS | Hospitality | 2018 |
| Aparta AS | Professional & scientific | 2005 |
| Ar Finnerud AS | Construction | 2025 |
| Ar Konstruksjon AS | Construction | 2025 |
| Arctic-Nb AS | Wholesale & retail | 2018 |
| Arne Garnås AS | Construction | 2005 |
| Arnegård Holding AS | Real estate | 2010 |
| Attica AS | Real estate | 2006 |
| Aura Constantin AS | Construction | 2018 |
| B. Dokken AS | Administrative & support | 2024 |
| Bakkerud AS | Construction | 2020 |
| Bakkeskogene Ans | Agriculture & fishing | 1995 |
| Baklien Og Nysetlien Skog | Agriculture & fishing | 2000 |
| Baus Arkitektur AS | Professional & scientific | 2006 |
| Baus Ingeniør Og Plan AS | Professional & scientific | 2022 |
| Bedshelter AS | Professional & scientific | 2026 |
| Beia Samdrift Da | Agriculture & fishing | 2007 |
| Bien Hår & Hudpleie AS | Other services | 2006 |
| Big Sky AS | Wholesale & retail | 2004 |
| Bil Og MC Import AS | | 2005 |
| Bilplaneten AS | Wholesale & retail | 1987 |
| Bjørhusvegen SA | Real estate | 2020 |
| Bjørn Børrestad AS | Wholesale & retail | 2014 |
| Bjørnerud Fjellgård AS | Hospitality | 2021 |
| Blingsmovegen 60 AS | Real estate | 2022 |
| Blyverket Maskin Og VVS AS | Transport & logistics | 2023 |
| Bratland Mur Og Flis AS | Construction | 2022 |
| Brenno Sag & Høvleri AS | Manufacturing | 1985 |
| Bringenatten Hotell Nesbyen AS | Hospitality | 2025 |
| Bringo Holding AS | Real estate | 2005 |
| Bringo Invest AS | | 2008 |
| Bringo Sag & Høvleri AS | Real estate | 1995 |
| Bringo Skog AS | Real estate | 2020 |
| Bromma Eiendom Da | Construction | 2005 |
| Bromma Hage & Hyttesenter AS | Wholesale & retail | 2022 |
| Bromma Idretts- Og Grendehus SA | Real estate | 1983 |
| Brusetvegen SA | Real estate | 2021 |
| Brustad Ans | Real estate | 1988 |
| Brustadgården AS | Real estate | 2005 |
| Brødr. Rodegård AS | Construction | 2005 |
| Brødrene Haugen Malerservice AS | Construction | 2016 |
| Brøtset Skog Da | Agriculture & fishing | 2012 |
| Buhovd Va-Drift AS | Water & waste | 2022 |
| Buinligrenda AS | Real estate | 2025 |
| Bukt Invest AS | | 2021 |
| Buskerud Utvikling AS | Real estate | 2015 |
| Buvatn Renseanlegg Da | Water & waste | 2005 |
| Buvatn Skog Og Utvikling Da | Real estate | 2005 |
| Buøen Eiendom AS | Real estate | 1999 |
| Buøen Holding AS | | 2009 |
| Byggvekst AS | Real estate | 2013 |
| Bysted Bygg Oü Nuf | Construction | 2011 |
| Bøgaset Miljøutbygging AS | Construction | 2005 |
| Bøgasetvegen SA | Real estate | 2025 |
| Børrestad AS | Wholesale & retail | 1985 |
| Børrestad Valdres AS | Wholesale & retail | 2003 |
| Børtnes Maskin AS | Construction | 2023 |
| Børtnes Nordre AS | Real estate | 2001 |
| Børtnes Transport AS | Transport & logistics | 2020 |
| Børtnes Ødegårdene Fiskeforvaltning SA | Real estate | 2016 |
| Børtnes Ødegårdene Viltforvaltning SA | Agriculture & fishing | 2010 |
| Catalyzer AS | Information & communication | 2008 |
| Cathrine Sevre AS | Health & social care | 2022 |
| CFS AS | Construction | 2011 |
| Cluda AS | Information & communication | 2015 |
| Data-Consult Nesbyen AS | Information & communication | 1985 |
| Defa AS | Manufacturing | 1987 |
| Din Kompis Da | Wholesale & retail | 2025 |
| Dogtivity AS | Other services | 2022 |
| Domaas Og Paulsen Da | Agriculture & fishing | 2011 |
| DWK 01 AS | Energy | 2025 |
| E Eidsheim Holding AS | | 2025 |
| Ebis AS | Wholesale & retail | 2021 |
| Eggestøl AS | Hospitality | 2005 |
| Eidal Bygg AS | Construction | 2012 |
| Eidal Eiendom AS | Real estate | 1995 |
| Eidal Møbel AS | Wholesale & retail | 1988 |
| Eidalsmarka Jaktforvaltning SA | Arts & recreation | 2012 |
| Einan AS | Real estate | 2021 |
| Elvepark AS | Real estate | 2026 |
| Engen Og Aalton Da | Agriculture & fishing | 2008 |
| Enorm.No Maskiner AS | Administrative & support | 2024 |
| Fagerhøy Eiendom AS | Real estate | 2004 |
| Fagerhøy Fjellstue AS | Real estate | 2017 |
| Fekene Multiservice AS | Professional & scientific | 2025 |
| Fekjan Brynhildstjern Sameie Da | Arts & recreation | 2002 |
| Fiskebekkvegen SA | Real estate | 2005 |
| Fjellheimen AS | Real estate | 2020 |
| Fjellmiljø AS | Water & waste | 1999 |
| Fjelltjernlia Drift AS | Water & waste | 2021 |
| Foreningskalenderen AS | Professional & scientific | 1999 |
| Form & Funksjon Da | Professional & scientific | 1991 |