| Kopperud Transport Og Anlegg AS | Transport & logistics | 2015 |
| Kultek AS | Professional & scientific | 2012 |
| Kvisten Biovarme AS | Energy | 2022 |
| Laaven AS | Information & communication | 2021 |
| Leivestad AS | Transport & logistics | 2005 |
| Ligno AS | Energy | 2016 |
| Linnab AS | | 2025 |
| Lozada Eiendom AS | Real estate | 2024 |
| Lozada Helsetjenester AS | Health & social care | 2024 |
| Lozada Holding AS | Health & social care | 2024 |
| Lundberg Og Sæteråsen AS | Construction | 2009 |
| Løvli Landskap AS | Professional & scientific | 2025 |
| Mago B AS | Real estate | 2011 |
| Mathiesen Eidsvold Værk Ans | Agriculture & fishing | 1671 |
| Mev Holding AS | | 2026 |
| Mev SPV AS | Real estate | 2026 |
| Mev Utvikling AS | Real estate | 2026 |
| Mev Utviklingseiendom Ans | Real estate | 2026 |
| Midtgaard Eiendom AS | Real estate | 2013 |
| Mjølnerhaugen AS | Real estate | 2021 |
| Monster Invest AS | | 2025 |
| Monster Utvikling AS | Real estate | 2026 |
| Morten Bråthen Transport AS | Transport & logistics | 2008 |
| Musikk & Instrument Service Ans | Other services | 1983 |
| Norce AS | Real estate | 2004 |
| Nordby Invest A/S | Real estate | 1988 |
| Norsk Traumeterapi Institutt AS | Education | 2024 |
| O.F.Invest AS | | 2023 |
| Oau Holding AS | Administrative & support | 2004 |
| Odinb AS | | 2025 |
| Olas Matsenter AS | Wholesale & retail | 2007 |
| Opperud Boligutvikling AS | Real estate | 2013 |
| Osnode AS | Information & communication | 2023 |
| P W Solsrud AS | Wholesale & retail | 1990 |
| Parkens Vognservice AS | Manufacturing | 2019 |
| Picea AS | Financial services | 2015 |
| Piston Events AS | Administrative & support | 2025 |
| Potevilt AS | Manufacturing | 2025 |
| PS Finans AS | | 2005 |
| Ragd AS | Wholesale & retail | 2015 |
| Recovery Bo Og Omsorg AS | Health & social care | 2003 |
| Recovery Øst AS | Health & social care | 2024 |
| Rekier Holding AS | Information & communication | 2022 |
| Rfocean AS | Transport & logistics | 2024 |
| Rfsea 2050 AS | Transport & logistics | 2026 |
| RLP Invest AS | | 2025 |
| Rognstad Eiendom AS | Construction | 2005 |
| Rognstad VVS AS | Construction | 1998 |
| Romerike Betongsaging AS | Construction | 1998 |
| Romerike Maskinutleie Ans | Administrative & support | 1988 |
| Saga Wood AS | Manufacturing | 2015 |
| Sam Sjøgren AS | Transport & logistics | 2002 |
| Schansen AS | Construction | 2025 |
| Serenity AS | Professional & scientific | 2009 |
| Skiltgutta AS | Construction | 2008 |
| Skinnende Rent AS | Administrative & support | 2016 |
| SL VVS AS | Construction | 2023 |
| Solberg Bygg AS | Professional & scientific | 1989 |
| Solberg, Bakken, Hansen Trerydding Ans | Agriculture & fishing | 2001 |
| Sondregruppen AS | | 2023 |
| Spring Leap Ltd Nuf | Administrative & support | 2013 |
| Stackr Multiparking AS | Professional & scientific | 2026 |
| Stenbråten Holding AS | Real estate | 2005 |
| Sæteråsen | Professional & scientific | 2025 |
| T. Briskemyr AS | Construction | 2018 |
| Tabriz AS | Real estate | 2007 |
| Tigre AS | Real estate | 2021 |
| Tigre Norpukk AS | Construction | 2013 |
| Tigre Utleie AS | Hospitality | 2017 |
| Tind Eiendom AS | Real estate | 2017 |
| Tomtvold Gruppen AS | Real estate | 2025 |
| Tomtvold Utleie AS | Real estate | 2025 |
| Tomtvold Utvikling AS | Real estate | 2025 |
| Torbjørn Bekken AS | Wholesale & retail | 2005 |
| Tvether Transport AS | Transport & logistics | 2023 |
| Tømrer Robin Rønning AS | Construction | 2026 |
| Unalome AS | | 2023 |
| Uni-Consulting AS | Wholesale & retail | 2013 |
| Varmemiljø AS | Construction | 2016 |
| Varmeutvikling AS | Energy | 2012 |
| Verkstedet Da | Health & social care | 2005 |
| Vestsidevegen 3 AS | Real estate | 2023 |
| Vita Bella Pizza AS | Hospitality | 2025 |
| Vognmann Jeppedal AS | Transport & logistics | 2014 |
| Von Krogh Nutrition & Communication AS | Professional & scientific | 2022 |
| W.D. Boekema AS | Transport & logistics | 2026 |
| Zaxa Frisør AS | Other services | 2024 |
| Østre Vei 90 AS | Real estate | 2026 |
| Øvre Romerike Tak AS | Construction | 2024 |