| 222 Entertainment Nuf | Information & communication | 2022 |
| 24NET Da | Information & communication | 2007 |
| 2M Håndverk AS | Construction | 2025 |
| 7DAYS AS | Wholesale & retail | 2015 |
| Aak Hauge Holding AS | | 2026 |
| Aattrl AS | Professional & scientific | 2024 |
| Advokatfirma Wilsgård AS | Professional & scientific | 2023 |
| Aivanta AS | Information & communication | 2026 |
| Akasien Begravelsesbyrå AS | Other services | 2001 |
| Akasien Holding AS | Real estate | 1972 |
| Alexander Strings AS | Other services | 2026 |
| Almo Consult AS | Administrative & support | 2021 |
| Althos AS | Transport & logistics | 1990 |
| Ans Noba Service | | 1987 |
| Art Entreprenør AS | Construction | 2022 |
| Art Proff AS | Construction | 2025 |
| Arxran AS | Wholesale & retail | 2023 |
| Arxran Solutions AS | Information & communication | 2008 |
| Asteri Invest AS | | 2021 |
| Attritus AS | Wholesale & retail | 2021 |
| Avelia Beauty AS | Wholesale & retail | 2023 |
| Aword Holding AS | Financial services | 2014 |
| B Solberg Invest AS | | 2025 |
| B3 Entreprenør AS | Construction | 2022 |
| Belysning Og Service AS | Manufacturing | 2012 |
| Bere Invest AS | | 2020 |
| Bergene AS | Real estate | 2012 |
| Birkheim Holding AS | Real estate | 2021 |
| Bjerkåsholmen Bolig AS | Real estate | 2008 |
| Bjerkåsparken AS | Real estate | 2008 |
| Bjørn Bryne Invest AS | Health & social care | 2015 |
| Blakstad Maskin AS | Financial services | 1981 |
| Bli Itj Fart Uten Bart AS | | 2022 |
| Briis Arkitektur AS | Professional & scientific | 2021 |
| Brødrene Johanssen Eiendom AS | Real estate | 2016 |
| Bullefant Holding AS | | 2025 |
| Bunnpris Gjettum AS | Wholesale & retail | 2014 |
| Bærum Finans AS | Professional & scientific | 2023 |
| Bærum MC Skole AS | Education | 2023 |
| Bærum Trafikkskole AS | Education | 2015 |
| C13 Consulting AS | Professional & scientific | 2025 |
| Carlin Invest AS | Financial services | 2005 |
| Cashponic Holding AS | Real estate | 2015 |
| Caspar AS | | 2020 |
| Collagis AS | Information & communication | 2018 |
| Conelo AS | Professional & scientific | 2018 |
| Corton AS | Financial services | 2000 |
| Cosmic Play AS | Education | 2019 |
| Ctrl Studio AS | Information & communication | 2025 |
| Daldorff Og Daldorff Rådgivning Da | Professional & scientific | 2002 |
| Davita AS | Professional & scientific | 2002 |
| Dragepenger AS | | 2024 |
| Dti Building AS | Construction | 2025 |
| Dønski Toppidrett AS | Education | 2011 |
| Easyplay AS | Information & communication | 2023 |
| Ekinvest AS | | 2005 |
| Ellefsen Hundehotell AS | Other services | 2025 |
| Ellefsen Norheim AS | | 2026 |
| Elo AS | Real estate | 2006 |
| Emailme AS | Information & communication | 2019 |
| En Kapital AS | Professional & scientific | 2021 |
| Equi-Stream AS | Information & communication | 2023 |
| Erik Eskild Invest AS | Real estate | 2004 |
| Esse Invest AS | | 2024 |
| Essko AS | Real estate | 2021 |
| Exe Holding AS | | 2023 |
| Fagerbakke Invest AS | Financial services | 2014 |
| Fast Growing Concepts AS | Professional & scientific | 2002 |
| Felo AS | Information & communication | 2020 |
| Fetter Anton Invest AS | | 2005 |
| Fin Høst AS | Construction | 2014 |
| Fossen Shipping AS | Wholesale & retail | 1957 |
| Fossen Trading Co AS | Wholesale & retail | 1992 |
| Found in Translation AS | Professional & scientific | 2023 |
| Frebro AS | Real estate | 2016 |
| Front Consulting AS | Professional & scientific | 2005 |
| Gamle Lillo Gård AS | Real estate | 2018 |
| Gammen Og Gagn AS | | 2021 |
| Garbo Eiendom AS | Real estate | 2006 |
| Geirtech AS | Information & communication | 2020 |
| Gemy AS | Construction | 2020 |
| Gens Invest AS | Real estate | 2017 |
| Gjendem Consulting AS | Professional & scientific | 2025 |
| Gjettum Barnehage SA | Education | 1995 |
| Gjettum Butikkdrift AS | Wholesale & retail | 2024 |
| Gjettum Bygg AS | Construction | 2019 |
| Gjettum Dagligvarer AS | Wholesale & retail | 2014 |
| Gjettum Gård Ans | Real estate | 1995 |
| Gjettum Gårdsdrift AS | Real estate | 2022 |
| Gjettum Tannklinikk AS | Health & social care | 2015 |
| Gjulem Holding AS | | 2017 |
| Glanz AS | Professional & scientific | 2012 |
| Global Lineup AS | Professional & scientific | 2024 |
| Global Lineup Holding AS | | 2025 |
| Grace Relay AS | Real estate | 2021 |
| Grautfond Holding AS | | 2022 |
| Gravferdsalliansen Far Vel AS | Other services | 2021 |
| Great Place to Grow AS | Professional & scientific | 2019 |
| Greverud Kjøpesenter AS | Real estate | 1994 |
| Gta Holding AS | Financial services | 2005 |