| 10LILLEBERG AS | | 2026 |
| 2MG Holding AS | | 2023 |
| Ab-Motor AS | Wholesale & retail | 2022 |
| Ab-Motor Holding AS | Wholesale & retail | 2022 |
| Abbe AS | | 2021 |
| Abl Gruppen AS | Administrative & support | 2025 |
| Acera AS | Information & communication | 2014 |
| Admiral AS | Transport & logistics | 2024 |
| Advokat Mette Skoklefald AS | Professional & scientific | 2005 |
| Advokatkontoret Myhr & Co AS | Professional & scientific | 2017 |
| Agnes Karoline Grønli AS | Administrative & support | 2021 |
| Ahaugen Invest AS | Real estate | 2021 |
| Ajjouri Transport AS | Transport & logistics | 2022 |
| Aksjeselskapet Lundemo Bruk | Real estate | 1911 |
| Albatros Holding AS | Financial services | 2005 |
| Albert Bromstad Eiendom AS | Real estate | 2002 |
| Albert Bromstad Holding AS | Wholesale & retail | 2021 |
| Alfanor 24031 AS | Transport & logistics | 2024 |
| All Sports Recycled AS | Water & waste | 2020 |
| Anleggsgrus AS | Mining & quarrying | 1987 |
| Anna Rathe Holding AS | Real estate | 2022 |
| Apjm Holding AS | | 2020 |
| Aps Holding AS | Wholesale & retail | 2007 |
| Ariko Frisør AS | Other services | 2014 |
| Arild Løvseth Holding AS | | 2024 |
| Arjo Entreprenør AS | Construction | 2020 |
| Arjo Invest AS | Real estate | 2015 |
| Ark Tech AS | Information & communication | 2025 |
| Arma Invest AS | Construction | 2022 |
| Arnemo Holding AS | Real estate | 2016 |
| Arve Opsahl AS | Wholesale & retail | 1975 |
| AS Astrid Klungseth Councelling | Health & social care | 2020 |
| AS Delprodukt | Manufacturing | 1983 |
| Asar AS | Wholesale & retail | 2015 |
| Asfalt-Midt AS | Construction | 2023 |
| Asfalt-Midt Produksjon AS | Manufacturing | 2025 |
| Asle Rundberg AS | Construction | 2012 |
| Assi Holding AS | | 2021 |
| Atelier Ekren AS | Manufacturing | 2018 |
| Aukan & Blekesøien AS | Construction | 2002 |
| Aune Skogtjenester AS | Agriculture & fishing | 2008 |
| Auran AS | Real estate | 2017 |
| Autechia Da | Professional & scientific | 2024 |
| Autocirc Trondheim Bil-Demontering AS | Wholesale & retail | 2021 |
| Autorent Grenland Da | Administrative & support | 2025 |
| Avisa Gaula AS | Information & communication | 2001 |
| Axis Audio AS | Manufacturing | 2022 |
| Axis Transport AS | Transport & logistics | 2024 |
| Bagøyvegen Veilag SA | Transport & logistics | 1990 |
| Bakkli Drift AS | Wholesale & retail | 2017 |
| Barents Outdoor AS | Wholesale & retail | 2020 |
| BBC Fritid Ans | Wholesale & retail | 2004 |
| BBC Fritid AS | Wholesale & retail | 2014 |
| Bei Invest AS | | 2015 |
| Bella Rosa Høvdingen AS | Hospitality | 2014 |
| Berg & Bjørgum AS | Other services | 1991 |
| Bergsmyr Inspection AS | Professional & scientific | 2022 |
| Bergsmyr Invest AS | | 2025 |
| Bergsmyrs Malerservice AS | Construction | 2003 |
| Bi Montering AS | Construction | 2026 |
| Big Sky Ventures AS | Professional & scientific | 2024 |
| Bilglass Senteret AS | Other services | 2025 |
| Birch Crest Holdings AS | | 2024 |
| Birch Hill Capital Management AS | Professional & scientific | 2024 |
| Bjerget Palé AS | Wholesale & retail | 2015 |
| Bjørgum Eiendom AS | Real estate | 1997 |
| Blomstervegen 1 AS | Real estate | 2021 |
| Bluestream AS | Professional & scientific | 2024 |
| BM Avretting AS | Construction | 2006 |
| Bobil Bergen AS | Wholesale & retail | 2017 |
| Bobil Trondheim AS | Wholesale & retail | 2016 |
| Boligforvalteren Norge AS | Professional & scientific | 2011 |
| Borten Holding AS | Real estate | 2017 |
| Bradi AS | Administrative & support | 2022 |
| Bravo Personell AS | Administrative & support | 2021 |
| Brende AS | Construction | 1975 |
| Brende Holding AS | Construction | 2024 |
| Brillesalongen AS | Wholesale & retail | 1997 |
| Brubakkhaugen 6 AS | Real estate | 2021 |
| Brunke Arkitekter AS | Professional & scientific | 2015 |
| Bugge Bygg & Drift AS | Construction | 2026 |
| Buhaug-Rømma Holding AS | | 2021 |
| Buvik Bolig AS | Real estate | 2019 |
| Buvik Ølfestival AS | Arts & recreation | 2016 |
| BW Entreprenør AS | Construction | 2025 |
| Byberg & Bromstad Holding AS | Real estate | 2013 |
| Byggarena AS | Wholesale & retail | 2018 |
| Byggfirma Nordløkken AS | Construction | 2026 |
| Byneset Regnskapslag SA | Administrative & support | 1995 |
| Byåsen Eiendomsutvikling AS | Real estate | 2018 |
| Caballeros AS | Hospitality | 2023 |
| Canis Hundetrening AS | Other services | 2013 |
| Canis Invest AS | Professional & scientific | 2005 |
| Cargo Line AS | Transport & logistics | 2023 |
| Cf-Maskin Melhus AS | Wholesale & retail | 1997 |
| Cleantek AS | Wholesale & retail | 2025 |
| Conan Invest AS | Professional & scientific | 2020 |
| Condor Holding AS | Health & social care | 2005 |
| Conwhyp AS | Professional & scientific | 2025 |
| Cooltech AS | Construction | 2026 |