| 1 2 3 Sivilarkitekter AS | Professional & scientific | 1989 |
| A & S Compositt AS | Health & social care | 2012 |
| Accab AS | Real estate | 1997 |
| Ach Eiendom AS | Real estate | 2013 |
| Acute Konsult AS | Professional & scientific | 2026 |
| Adünd AS | | 2026 |
| Aji AS | Hospitality | 2011 |
| Aji Event Og Catering AS | Hospitality | 2026 |
| Akademiet for Klassisk Kunst AS | Education | 2026 |
| Aksess AI AS | Information & communication | 2025 |
| Alemo AS | Professional & scientific | 2020 |
| Allinnovestment AS | Financial services | 2015 |
| Almaas Invest AS | | 2023 |
| Alphaservice AS | Information & communication | 2023 |
| Am Future Holding AS | Information & communication | 2026 |
| Am Utvikling & Tjenester AS | Construction | 2013 |
| Amadea AS | Information & communication | 2025 |
| Anjo Invest AS | | 2023 |
| Anthonisen AS | Wholesale & retail | 2016 |
| Antvet AS | | 2023 |
| Arc Holding AS | Manufacturing | 2014 |
| Archea AS | Professional & scientific | 2026 |
| Arg Architects AS | Professional & scientific | 2023 |
| AS Gisle Gaard | Real estate | 1914 |
| Asd Media & Production AS | Information & communication | 2016 |
| Asker Bilberging AS | Transport & logistics | 2025 |
| Asker Bygg AS | Construction | 1988 |
| Asker Dyrepensjonat AS | Agriculture & fishing | 2015 |
| Asker Maskin AS | Administrative & support | 2025 |
| Asker Maskinservice AS | Transport & logistics | 2009 |
| Asker Og Bærum Consult AS | Professional & scientific | 2013 |
| Asker Trefelling AS | Agriculture & fishing | 2024 |
| Atm Deler AS | | 2026 |
| Atm Systems AS | Wholesale & retail | 2026 |
| Atman Invest AS | | 2021 |
| Auckland Point Invest AS | Financial services | 2007 |
| Authentic Asia AS | Hospitality | 2022 |
| Aval Group AS | Professional & scientific | 2026 |
| Babelfish Aviation AS | Financial services | 2016 |
| Babelfish Holding AS | Financial services | 2018 |
| Backoffice AS | Professional & scientific | 2018 |
| Bakkal Heggedal AS | Wholesale & retail | 2015 |
| Barbershop Abas AS | Other services | 2023 |
| Barstad & Strand AS | Financial services | 2017 |
| Beantech AS | Information & communication | 2024 |
| Bellman & Symfon Norge AS | Wholesale & retail | 1985 |
| Berggaard Holding AS | | 2020 |
| Berit Marstein AS | Health & social care | 2013 |
| Biljungel AS | Information & communication | 2025 |
| Black Sheep Productions AS | Information & communication | 2012 |
| BLEKKSPRUT1 Productions AS | Arts & recreation | 2018 |
| Blueberry Fields AS | Information & communication | 2016 |
| Bohjem AS | Other services | 2020 |
| Borch Fagerhaug Elektro AS | Construction | 2013 |
| Bosslion AS | Information & communication | 2016 |
| Brum-Brum Ans | Wholesale & retail | 1999 |
| Bruse Design AS | Professional & scientific | 2012 |
| Bucher Invest AS | Real estate | 2012 |
| Bud Buddy AS | Transport & logistics | 2024 |
| Bulisen AS | Professional & scientific | 2020 |
| Bygg Og Tømmermesterne Jacobsen & Nielsen Ans | Construction | 1993 |
| Byggmester Madsen Og Giseth AS | Construction | 2013 |
| Byggtas AS | Construction | 2025 |
| Bærum & Asker Entreprenør AS | Construction | 2025 |
| Cafe Villa AS | Hospitality | 2006 |
| Caprisk AS | Professional & scientific | 2018 |
| Cato's House of Education AS | Education | 2014 |
| Cel Holding AS | | 2020 |
| Celia Ans | Wholesale & retail | 2002 |
| Chem-Tec AS | Wholesale & retail | 1999 |
| Cila Velvet AS | Wholesale & retail | 2009 |
| Circular Boating AS | Wholesale & retail | 2023 |
| CLS Invest AS | | 2021 |
| Cobra Holding AS | Real estate | 2021 |
| Cognitionis AS | Professional & scientific | 2022 |
| Cut AS | Other services | 2014 |
| CW Bygg AS | Construction | 2013 |
| Dash AS | | 2026 |
| DBL Invest AS | | 2026 |
| Deiligålykk AS | Wholesale & retail | 2026 |
| Den Norske Økonomiklubben Ans | Professional & scientific | 1989 |
| Det Tredje Kontoret AS | | 2012 |
| Diantek Digital Technologies AS | Information & communication | 2020 |
| Dis Herrefrisør AS | Other services | 2021 |
| Ebbestad Performance AS | Manufacturing | 2012 |
| Ec-Play AS | Professional & scientific | 2014 |
| Eikenes AS | Professional & scientific | 2017 |
| Eilime Holding AS | | 2025 |
| Ekvimed AS | Information & communication | 2018 |
| Elector AS | Professional & scientific | 1998 |
| Elite Aesthetic Recruitment AS | Education | 2026 |
| Elleville Hjem AS | Real estate | 2024 |
| Elok Låsproduksjon AS | Manufacturing | 1995 |
| Elvedalen AS | Professional & scientific | 2023 |
| Energi & Lysteknikk AS | Professional & scientific | 2015 |
| Entangled AS | Professional & scientific | 2026 |
| Era Club AS | Arts & recreation | 2025 |
| Es Madsen Holding AS | Financial services | 2013 |
| Espen Sommervoll AS | Construction | 2019 |
| Ess Bygg AS | Construction | 2014 |