| Gamletrehus.Com AS | Wholesale & retail | 2006 |
| Gardermoen Legetjenester AS | Health & social care | 2024 |
| GATE2LOCATION AS | Professional & scientific | 2022 |
| GCN Holding AS | Real estate | 2005 |
| Gmax Holding AS | Real estate | 2005 |
| Gmax Invest AS | Real estate | 2009 |
| Gmjs Holding AS | Real estate | 2015 |
| Grading Invest AS | Financial services | 2018 |
| Grape Car Media AS | Information & communication | 2020 |
| Grbesa-Hansen Holdings AS | Construction | 2022 |
| Griselda AS | | 2023 |
| Grønt Eple AS | Other services | 2015 |
| Grøttem AS | Professional & scientific | 2026 |
| Haaland Bil AS | Wholesale & retail | 2013 |
| Hatama AS | | 2023 |
| Hauschild Holding AS | Real estate | 2017 |
| Havblikk Eiendomsinvest AS | Real estate | 2022 |
| Havblikk Eiendomsutvikling AS | Real estate | 2022 |
| Helling Rør AS | Construction | 2023 |
| Helse for Deg AS | Health & social care | 2013 |
| Helsim AS | Professional & scientific | 2015 |
| Henrik Ibsen AS | Wholesale & retail | 2025 |
| Henrik Lundby Holding AS | | 2025 |
| Hksm Holding AS | | 2022 |
| Hold Short AS | | 2024 |
| HPC AS | Education | 2026 |
| HTB Holding AS | Financial services | 2018 |
| Huso AS | Construction | 2024 |
| Husvik Productions AS | Real estate | 2026 |
| Hårgalleriet AS | Other services | 2020 |
| Idamart AS | | 2020 |
| Ig Nordic AS | Wholesale & retail | 2025 |
| Ijj Tjenester Ans | Health & social care | 2006 |
| Ing. Furuseth AS | Wholesale & retail | 1988 |
| Inger Aarum Werner AS | Real estate | 1992 |
| Innos AS | Professional & scientific | 2015 |
| Innovit Consulting AS | Information & communication | 2018 |
| Investorprosjekt 232 AS | | 2014 |
| Itanor AS | Wholesale & retail | 2024 |
| J & M Vedlikehold Da | Administrative & support | 2001 |
| J&J Torres Consulting AS | Administrative & support | 2019 |
| J. Wist Holding AS | Financial services | 2014 |
| J.A.B Holding AS | | 2021 |
| Jakteventyr AS | Wholesale & retail | 2018 |
| Janne Larsen Holding AS | Financial services | 2017 |
| Jlj-Invest AS | | 2025 |
| JM Smart Bygg AS | Construction | 2013 |
| Joanna AS | | 2025 |
| Joksm AS | Financial services | 2015 |
| Jonny Ruud Invest AS | | 2025 |
| Jonta K AS | | 2021 |
| JPN Bygg Ans | Construction | 1989 |
| Kalite Consult AS | Professional & scientific | 2020 |
| Kalleberg AS | | 2024 |
| Kellingsen Invest AS | | 2026 |
| Khatri Holding AS | Real estate | 2022 |
| KHD Invest AS | | 2024 |
| KHH Formidling AS | Administrative & support | 2011 |
| Kicker Travel and Consulting Services AS | Information & communication | 2009 |
| Kjelltech AS | | 2022 |
| Klinge Bygg AS | Construction | 2018 |
| Klinge Holding AS | | 2026 |
| Klinge Holding Datter AS | | 2026 |
| Kooy Invest AS | | 2024 |
| Kristiania Aktier Ans | Wholesale & retail | 2000 |
| Kryptosamvirket SA | Education | 2019 |
| Ktmk Holding AS | Health & social care | 2019 |
| Kunnecke AS | | 2020 |
| L-Agentur AS | Wholesale & retail | 2020 |
| Ladane Holding AS | | 2021 |
| Lasse Wiik Holding AS | Professional & scientific | 2019 |
| Leaptek AS | Information & communication | 2024 |
| Leksand AS | Wholesale & retail | 2017 |
| Lemot AS | Financial services | 2002 |
| Lilleseth Invest AS | | 2020 |
| Lilu AS | | 2021 |
| Lindmo Ryan Holding AS | | 2025 |
| Lizard Works | Construction | 2006 |
| LJR Eiendom AS | Real estate | 2020 |
| Lmhg Invest AS | | 2024 |
| Lochnagar AS | | 2025 |
| Locus Et Tabula AS | Information & communication | 2021 |
| Logoped Blomkvist AS | Health & social care | 2024 |
| Logoped Maria AS | Health & social care | 2018 |
| Louise Holding AS | Real estate | 2005 |
| Lørenskog Hud Og Fotpleie Ans | Other services | 1992 |
| M. Reed AS | Financial services | 2011 |
| Malik Bistro Frogner AS | Hospitality | 1990 |
| Malmo Invest AS | Professional & scientific | 2016 |
| Maniro AS | Real estate | 2021 |
| Margo Olavesen AS | Education | 2024 |
| Martinsen Communication & Marketing AS | Professional & scientific | 1992 |
| Marvinvest AS | | 2020 |
| Mattis Thørud AS | Information & communication | 2026 |
| Max Hike AS | Wholesale & retail | 2016 |
| MBK Invest AS | Financial services | 2018 |
| Mbsd AS | | 2022 |
| ME1 Invest AS | | 2020 |
| Megg Holding AS | Wholesale & retail | 2005 |
| Mel Asker 17 AS | Real estate | 2024 |