| Aa Pro Partner Ans | Administrative & support | 1999 |
| Aam Regnskap AS | Professional & scientific | 2015 |
| Ac Carbon Capture AS | | 2020 |
| Advik AS | Wholesale & retail | 2015 |
| Akershus Konsulting AS | Professional & scientific | 2019 |
| Aktiv Sandblåsing Da | Construction | 2003 |
| Akv Auto AS | Wholesale & retail | 1975 |
| Ambient Eiendom AS | Real estate | 2021 |
| Anvit AS | Transport & logistics | 2020 |
| Arizona Holding AS | Hospitality | 2005 |
| Artbygg AS | Construction | 2016 |
| Asker Monument AS | Wholesale & retail | 2014 |
| Asker Og Bærum Bilopphuggeri AS | Wholesale & retail | 1993 |
| Asker Og Bærum Graveservice AS | Construction | 1994 |
| Asker Og Bærum Servicetjenester AS | Administrative & support | 2024 |
| Asker Transport AS | Transport & logistics | 2020 |
| Atb Entreprenør AS | Construction | 2012 |
| Auto Spar AS | Wholesale & retail | 1997 |
| Baredia AS | Wholesale & retail | 2018 |
| Begood AS | Wholesale & retail | 2022 |
| Bilspesialisten Asker Og Bærum AS | Other services | 1995 |
| Bjørum Gård AS | Agriculture & fishing | 2006 |
| Bro Bane Bygg AS | Real estate | 1946 |
| Bro Bane Bygg Invest AS | Real estate | 2018 |
| Bulling AS | Construction | 2015 |
| Buskerud Blikk Bærum AS | Construction | 2023 |
| Bærum Capital Invest AS | Real estate | 2022 |
| Bærum Grunneierlag for Jakt Fiske Og Viltstell SA | Arts & recreation | 1952 |
| Candyrush AS | Wholesale & retail | 2021 |
| Christoffersen Bygg Og Takst AS | Construction | 2025 |
| Consept Bil AS | Wholesale & retail | 2019 |
| Danfoss Power Solutions AS | Wholesale & retail | 1999 |
| Dronesec AS | Transport & logistics | 2024 |
| Døhl AS | Construction | 2023 |
| Døhl Holding AS | | 2025 |
| Ec Import AS | Wholesale & retail | 2011 |
| Eco Engros AS | Wholesale & retail | 2019 |
| El Camino AS | Hospitality | 2020 |
| El Camino Catering AS | Hospitality | 2020 |
| Erasmus AS | | 2021 |
| Eseries AS | Wholesale & retail | 2024 |
| F&G Media Da | Arts & recreation | 2025 |
| FDH Holding AS | | 2026 |
| Funtoplay AS | Wholesale & retail | 1996 |
| Gunnar Knutsen AS | Transport & logistics | 2007 |
| Haakon Ellingsen AS | Wholesale & retail | 1962 |
| Hagabråten AS | Wholesale & retail | 2023 |
| Hagabråten Eiendom AS | Real estate | 1992 |
| Haldsrud Invest AS | Real estate | 2022 |
| Halite AS | Manufacturing | 2017 |
| Hassem AS | Construction | 2020 |
| Hawle Norge AS | Wholesale & retail | 2014 |
| Hedalen Eiendom AS | Real estate | 2021 |
| Hensmoen Trelast AS | Wholesale & retail | 2023 |
| Holon AS | Education | 2013 |
| Hugir AS | Professional & scientific | 2007 |
| HW Engineering AS | Professional & scientific | 2025 |
| Håkon Sport AS | Arts & recreation | 1992 |
| Industrial Solutions AS | Wholesale & retail | 2019 |
| Indutech AS | Wholesale & retail | 2015 |
| Ing. Egil Christiansen AS | Professional & scientific | 2023 |
| Isotak Bygg AS | Construction | 1988 |
| Isotak Holding AS | Construction | 2005 |
| J&J Rør Service AS | Construction | 2023 |
| Jammerdalen Vann- Og Avløpslag SA | Water & waste | 2011 |
| Johnsen Entreprenør AS | Transport & logistics | 2009 |
| KAJA1 Holding AS | | 2020 |
| Kba Holding AS | Manufacturing | 2019 |
| Kjaglidalsveien SA | Real estate | 1952 |
| Kleven Maskin AS | Construction | 2023 |
| Klock Sport AS | Arts & recreation | 2018 |
| Klock Transport AS | Transport & logistics | 2015 |
| Klockern Holding AS | | 2025 |
| Km&T AS | Construction | 2024 |
| Kris Og Kjells Møbelsnekkeri AS | Manufacturing | 1994 |
| KZ1 Holding AS | | 2024 |
| Latterfabrikken AS | Arts & recreation | 2019 |
| Likvid Regnskap AS | Professional & scientific | 2024 |
| Mantaswrap AS | Professional & scientific | 2021 |
| Marcus - Handverker AS | Construction | 2020 |
| Matpunkt AS | Wholesale & retail | 2016 |
| Micodan | Administrative & support | 2008 |
| Micodan Norge AS | Manufacturing | 1999 |
| Miso AS | | 2020 |
| Moderne Hus AS | Professional & scientific | 2016 |
| Mva Regnskap AS | Professional & scientific | 2015 |
| Naka Holding AS | Real estate | 2015 |
| Naka Racing AS | Professional & scientific | 2018 |
| Namo Eiendom Vest AS | Real estate | 2010 |
| Namo Eiendom Østlandet AS | Professional & scientific | 2020 |
| Namo Holding AS | Real estate | 1991 |
| Nedre Sand Gård Da | Agriculture & fishing | 2008 |
| Needs AS | Wholesale & retail | 2020 |
| Nero. AS | Construction | 2022 |
| Nes Landhandel AS | Wholesale & retail | 2021 |
| Netconsult AS | Information & communication | 2005 |
| Nico Norderhaug Invest AS | | 2023 |
| Nodig Norway AS | Wholesale & retail | 2018 |
| Nodig Rental AS | Administrative & support | 2024 |
| Nordisk Handelshus AS | Wholesale & retail | 1992 |