| Hegna Holding 2 AS | Real estate | 2023 |
| Hegna Holding 3 AS | Real estate | 2023 |
| Hjemmebakeriet AS | Manufacturing | 1987 |
| Holter Holding AS | Real estate | 2006 |
| Håvar Sørbø Holding AS | | 2023 |
| Ihle Prosjekt AS | Construction | 2012 |
| Import Haven AS | Wholesale & retail | 2026 |
| Inno Engineering Norway AS | Professional & scientific | 2015 |
| Innomarket AS | Administrative & support | 2024 |
| Jah Bygg AS | Construction | 2021 |
| Jamo Bygg Holding AS | Construction | 2017 |
| Jamo Entreprenør AS | Construction | 2017 |
| Jessheim Asfaltverk AS | Administrative & support | 2022 |
| JFs VIDEOVERDEN ANS | | 1989 |
| Johan Arnt AS | Professional & scientific | 2023 |
| Johs Granås Eiendom AS | Real estate | 1962 |
| Jon Erling Bekken AS | Financial services | 2005 |
| Jørgensen & Dahl Forlag AS | Information & communication | 2022 |
| K Berntsen & Sønner Da | Construction | 1989 |
| K.W.-Elektro AS | Construction | 2025 |
| K9 Nannestad Dyreklinikk AS | Professional & scientific | 2020 |
| Kalda AS | Professional & scientific | 1999 |
| Kalind Kran- Og Transport AS | Transport & logistics | 2013 |
| Kempower AS | Wholesale & retail | 2021 |
| KG Antirust AS | Other services | 2024 |
| Kilab AS | Wholesale & retail | 2013 |
| Kjøkkenproffen AS | Construction | 2015 |
| Konterud Vedlikehold AS | Administrative & support | 2026 |
| Kram Invest AS | Wholesale & retail | 2010 |
| Krone Norge AS | Wholesale & retail | 2023 |
| Laache & Laache AS | Real estate | 2021 |
| Laache Maskin AS | Construction | 2024 |
| Laache Utvikling AS | Real estate | 2022 |
| Landsverk Vassengen AS | Manufacturing | 2020 |
| Langhelle AS | Professional & scientific | 2017 |
| Lauritz Fladby AS | Construction | 2004 |
| Lein Offshore AS | Professional & scientific | 1987 |
| Leiravoll AS | Real estate | 2018 |
| Lerberg AS | Agriculture & fishing | 2017 |
| Limbodal Handel AS | Wholesale & retail | 2017 |
| Limbodal Invest AS | Wholesale & retail | 2015 |
| Logistikk Ass AS | Transport & logistics | 2023 |
| Lotus Import & Export AS | Wholesale & retail | 2011 |
| M Boligstyling AS | Professional & scientific | 2025 |
| M Teknikk | Manufacturing | 2020 |
| Majorsvingen AS | | 2024 |
| Majorvegen 16 AS | | 2022 |
| Majorvegen 8 AS | Real estate | 2020 |
| Malermester Rune Toftner AS | Construction | 2004 |
| Maskinentreprenør Stian a. Olsen AS | Construction | 2017 |
| Measurement Technology Services AS | Wholesale & retail | 2018 |
| Measurement Technology Services AS | Wholesale & retail | 2026 |
| Mel Gardermoen 15 AS | Real estate | 2021 |
| Mel Gardermoen 2 AS | Real estate | 2021 |
| Mika AS | Transport & logistics | 2022 |
| Min Taxi AS | Transport & logistics | 2023 |
| MK Bil AS | Transport & logistics | 2019 |
| ML Bilpleie Invest | Real estate | 2017 |
| Mna Holding AS | Construction | 2022 |
| Mna Takservice AS | Construction | 2020 |
| Mosvic Da | Hospitality | 2020 |
| Mptotalbygg AS | Construction | 2020 |
| Mugi Transport Service AS | Transport & logistics | 2021 |
| Multum Ans | Construction | 2011 |
| Myhre Jacobsen Invest AS | | 2005 |
| Nannestad Auto AS | Wholesale & retail | 2025 |
| Nannestad Brukt - Nytt Ans | Wholesale & retail | 1990 |
| Nannestad Grunneierlag SA | Arts & recreation | 1954 |
| Nannestad Helseklinikk AS | Health & social care | 2025 |
| Nannestad Kulturprestegård Da | Arts & recreation | 2024 |
| Nannestad Legesenter AS | Health & social care | 2013 |
| Nannestad Pizza Bar AS | Hospitality | 2023 |
| Nannestad Streetfood AS | Hospitality | 2026 |
| Nannestad Trim Og Helse AS | Arts & recreation | 2015 |
| Nannestad Vaktmester AS | Construction | 2021 |
| Nedre Engelstad Holding AS | Wholesale & retail | 2011 |
| Nettgrossisten Da | Wholesale & retail | 2023 |
| NFC Byggtjenester AS | Construction | 2026 |
| Nogavi Holding AS | | 2026 |
| Nordengen AS | Construction | 1982 |
| Nordengen Eiendom Nannestad AS | Real estate | 2017 |
| Nordic Flight Service AS | Administrative & support | 2018 |
| Nordic Romerike AS | Administrative & support | 2025 |
| Norlico Bygg AS | Construction | 2011 |
| Norsk Veiservice AS | Construction | 2024 |
| Norwegian Special Mission AS | Manufacturing | 2003 |
| Norwegian Telecom AS | Information & communication | 2017 |
| Ohah AS | Real estate | 2013 |
| Olav Myhre Trafikkskole AS | Education | 2020 |
| Olsrudskauen 10-12 AS | Real estate | 2015 |
| Onmark AS | Professional & scientific | 2021 |
| Oryggi Beredskap AS | Professional & scientific | 2026 |
| Oslo Maskin & Deler AS | Wholesale & retail | 2024 |
| Oslo Maskin AS | Wholesale & retail | 2018 |
| Overraskelse AS | | 2006 |
| Perfeito Eiendom AS | Real estate | 2016 |
| Petrichor Holding AS | | 2024 |
| Prestmosen Fus Barnehage AS | Education | 2018 |
| Pro Tak AS | Construction | 2024 |
| Prosjektutvikling AS | Real estate | 1985 |