| 91 Ideligen AS | Administrative & support | 2016 |
| A.Bingen Holding AS | Administrative & support | 2015 |
| Abelone.No AS | Wholesale & retail | 2012 |
| Aicko Holding AS | Construction | 2019 |
| Al-Baraka for Hajj Og Umrah AS | Administrative & support | 2017 |
| Anker Forvaltning AS | Administrative & support | 2025 |
| Apex Consulting Advisors AS | Professional & scientific | 2021 |
| Arb Holding AS | Construction | 2019 |
| Art of Sun Sørum AS | Other services | 2014 |
| Asak Anlegg AS | Construction | 1986 |
| Asak Hestesenter Ans | Agriculture & fishing | 2007 |
| Asak Østre AS | Real estate | 2024 |
| Aune & Co AS | | 2026 |
| Aurskog - Høland Og Sørum Taxi SA | Transport & logistics | 1992 |
| B.I.E AS | Construction | 2011 |
| Bad & Boligtakst AS | Construction | 2016 |
| Baderomspakken 2 AS | Construction | 2025 |
| Baderomspakken AS | Construction | 2023 |
| Baderomspakken Invest AS | Construction | 2023 |
| Bakke Lås Og Automatikk AS | Construction | 2023 |
| Bekom AS | Professional & scientific | 2014 |
| Benora AS | Financial services | 2018 |
| Bernt Rylander | Transport & logistics | 2013 |
| Bjerkes Rutebiler AS | Real estate | 2015 |
| Bjørn's Småfix AS | Administrative & support | 2016 |
| Blaker Handels AS | Wholesale & retail | 2026 |
| Borgen Gard AS | Manufacturing | 2023 |
| Brødrene Underhaug & Sønner AS | Wholesale & retail | 2015 |
| Bøffel Holding AS | Real estate | 2020 |
| CA2 Seksjon 9 AS | Real estate | 2007 |
| Catering Øst AS | Hospitality | 2019 |
| Cortiva AS | | 2026 |
| Cowboy AS | Real estate | 2020 |
| DP Fremtidinvest AS | | 2025 |
| Dry Hire AS | Administrative & support | 2014 |
| Eac AS | Professional & scientific | 2018 |
| Eac Eiendom AS | Real estate | 2018 |
| Ecoflow AS | Administrative & support | 2017 |
| Efd AS | Administrative & support | 2016 |
| Egil Olsen AS | Professional & scientific | 1989 |
| Egner 1 AS | Administrative & support | 2022 |
| Egner AS | Real estate | 2012 |
| Egner Holding AS | Administrative & support | 2014 |
| Egner Service & Tjenester AS | Manufacturing | 2026 |
| Emca Holding AS | Wholesale & retail | 2024 |
| Enigmatic AS | Wholesale & retail | 2023 |
| Espen Egner AS | Administrative & support | 2022 |
| Finn Jørgensen | Construction | 1997 |
| Fjord Defence Marine AS | Wholesale & retail | 2015 |
| Florin Malerarbeid - Viken AS | Construction | 2019 |
| Florin Malerarbeid AS | Construction | 2012 |
| Forretningsplassen Eiendom AS | Real estate | 2000 |
| Foto H2 AS | | 2014 |
| Fundamental Eiendom AS | Real estate | 2024 |
| Gjeldx AS | Professional & scientific | 2025 |
| Gjenbruksgiganten AS | Wholesale & retail | 2024 |
| Godejord Entreprenør AS | Construction | 2012 |
| Godejord Gruppen AS | Real estate | 2014 |
| Godejord Invest AS | Real estate | 2018 |
| Gulvproffen Oslo AS | Construction | 2018 |
| Hellesjø AS | Construction | 2012 |
| Heviku AS | Construction | 2016 |
| Hkkm Holding AS | | 2012 |
| House of Fiber AS | Construction | 2019 |
| HSG Service, Uab Nuf | Construction | 2019 |
| Husseinfikser AS | Professional & scientific | 2023 |
| Håkan AS | Transport & logistics | 2019 |
| Innolope AS | Professional & scientific | 2019 |
| IT Konsult AS | Information & communication | 2006 |
| Jaa Holding AS | | 2025 |
| Janson & Langerud AS | Wholesale & retail | 1926 |
| Jdev AS | Information & communication | 2022 |
| JND Hage AS | Construction | 2026 |
| Jordet Gård - Norum Da | Agriculture & fishing | 2025 |
| Jørgen Sletholen AS | Construction | 2001 |
| Kaluba-Investments AS | | 2022 |
| Kazha AS | Hospitality | 2005 |
| Kirsebom Eiendom Ans | Real estate | 1988 |
| Kvamme Kapital AS | | 2024 |
| Lav Holding AS | | 2025 |
| LHR Holding AS | Real estate | 2013 |
| Lillestrøm Trefellling & Utemiljø AS | Administrative & support | 2017 |
| Logistikk Partner AS | Transport & logistics | 2020 |
| Løren Holding AS | Professional & scientific | 2005 |
| Markeder Og Messer AS | Administrative & support | 2026 |
| Mbe Holding AS | Wholesale & retail | 2019 |
| Meierigaarden Kro Og Selskapslokaler AS | Hospitality | 1999 |
| Memo of Norway AS | Wholesale & retail | 2019 |
| Midtbygda AS | Real estate | 2024 |
| Mna- Holding AS | Real estate | 2023 |
| Nordren AS | Water & waste | 1993 |
| Norumbryggeriet AS | Manufacturing | 2015 |
| Nye Sørum Rør Og Bad AS | Construction | 2025 |
| Okin Holding AS | | 2013 |
| Olav Haneborg Holding AS | Agriculture & fishing | 2021 |
| Ormstad AS | Agriculture & fishing | 2021 |
| Ormstad Regnskap AS | Professional & scientific | 2017 |
| Oslo Glamping AS | Hospitality | 2024 |
| Osmium Eiendom AS | Real estate | 2016 |
| Papir I Hjertet Da | Wholesale & retail | 2010 |