| Gardermoen Auto AS | Wholesale & retail | 2020 |
| Gardermoen Autopartner AS | Wholesale & retail | 2024 |
| Gardermoen Bilsenter AS | Wholesale & retail | 2020 |
| Gardermoen Bilsenter Holding AS | | 2016 |
| Gardermoen DJ Og Lys AS | Arts & recreation | 2024 |
| Glass-Service AS | Construction | 2008 |
| Glassy AS | Construction | 2020 |
| Gleto Holding AS | Construction | 2024 |
| Glomma-Nes AS | Real estate | 2017 |
| Gourmetkurven AS | Wholesale & retail | 2021 |
| Grimshei Service AS | Administrative & support | 2025 |
| GT Trolldalen AS | Real estate | 2017 |
| Hansvik AS | Administrative & support | 2026 |
| Harfallet Eiendom AS | Real estate | 2004 |
| Hasler Eiendom AS | Real estate | 1994 |
| Hasleråsen AS | Real estate | 2021 |
| Hedmarka AS | Professional & scientific | 2020 |
| Hjemtakst AS | Real estate | 2018 |
| Hjera Gård AS | Agriculture & fishing | 2018 |
| HMK Bilcon | Wholesale & retail | 2015 |
| Hms-Senteret Øvre Romerike SA | Health & social care | 1976 |
| Hoel Økonomi AS | Professional & scientific | 2025 |
| Holdingselskapet B M AS | Real estate | 2022 |
| Holmar Eiendomsutvikling AS | Real estate | 2011 |
| Homlen Eiendom AS | Real estate | 2018 |
| House of Noctira AS | Wholesale & retail | 2026 |
| Håndverker Ringen AS | Wholesale & retail | 2008 |
| Idehus Romerike AS | Construction | 2006 |
| Idehus Romerike Eiendom AS | Construction | 2011 |
| Idehus Romerike Feltutbygging AS | Real estate | 2017 |
| Idehus Romerike Holding AS | Real estate | 2018 |
| Ilex AS | Manufacturing | 2020 |
| In-West AS | Real estate | 2017 |
| Ina Himle Sports Dogs AS | Other services | 2023 |
| Industriveien 57 AS | Real estate | 2015 |
| Irfan Aftab AS | | 2021 |
| J/T Invest AS | | 2019 |
| Jessheim Bilsenter AS | Wholesale & retail | 2025 |
| JMM AS | Professional & scientific | 2025 |
| Joba Eiendom AS | Real estate | 2016 |
| Jos Bygg AS | Construction | 2017 |
| JSN Takst Og VVS AS | Construction | 2021 |
| JTM Consult AS | Wholesale & retail | 2018 |
| K R Holtet AS | Construction | 2015 |
| K-F Eiendom AS | Real estate | 2016 |
| K.J. Hvitevareservice AS | Other services | 2023 |
| K2 Bil AS | Wholesale & retail | 2022 |
| Kammerherre Fayes Veg 3 AS | Real estate | 2018 |
| Karibakken 34 AS | Information & communication | 1998 |
| Khasro Invest AS | | 2022 |
| Kolo Invest AS | | 2025 |
| Kopperud Holding AS | Real estate | 2020 |
| Kopperud-Transport AS | Transport & logistics | 2024 |
| Kråbøl Holding AS | | 2025 |
| Kulturhåndverkerne AS | Construction | 2016 |
| Kyhnstun AS | Manufacturing | 2005 |
| La Perla Nails AS | Other services | 2025 |
| Lars J Og Lars R Yri Ans | Agriculture & fishing | 2004 |
| Larsen Rørleggerbedrift AS | Construction | 2020 |
| Lille Mekaniske AS | Manufacturing | 2007 |
| Lillestrøm Catering AS | Hospitality | 2019 |
| Linneruds Biltransport AS | Transport & logistics | 1972 |
| Lmo AS | | 2023 |
| Lob Invest AS | | 2022 |
| Loletr Holding AS | | 2026 |
| Lummeco AS | Construction | 2025 |
| Lundberg Maskin AS | Real estate | 2006 |
| Luxus Bilpleie AS | Other services | 2022 |
| M&K-Holding AS | Health & social care | 2019 |
| M.Kopperud AS | Transport & logistics | 2008 |
| Madgreen Holding AS | Real estate | 2017 |
| Madness Power AS | Manufacturing | 2022 |
| Mahti-Glass AS | Manufacturing | 2021 |
| Makin AS | Wholesale & retail | 2018 |
| Malt Eiendom AS | Real estate | 2016 |
| Mamre Maskin AS | Manufacturing | 2025 |
| Mandallsgate Eiendom AS | Real estate | 2011 |
| Marius Holte AS | Information & communication | 2021 |
| Maxpadel AS | Arts & recreation | 2020 |
| MDV Holding AS | | 2026 |
| Meigusta AS | Wholesale & retail | 2023 |
| Minnesund Industriområde 40 AS | Real estate | 2018 |
| MLN Eiendom AS | | 2026 |
| Mobakk Eiendom AS | Real estate | 2024 |
| Morkvegen AS | Real estate | 2018 |
| Mro Holding AS | Construction | 2017 |
| Munter Event AS | Arts & recreation | 2022 |
| Myrknaus Helse&Coaching AS | Health & social care | 2019 |
| Møbler King AS | Wholesale & retail | 2024 |
| Mør AS | Wholesale & retail | 2021 |
| Nedre Romerike Tak AS | Construction | 2021 |
| Nettsperten AS | Information & communication | 2023 |
| Next Investment AS | Construction | 2019 |
| Nhbil-Outlet AS | Wholesale & retail | 2026 |
| Nord-Holding AS | | 2022 |
| Nordecal AS | Professional & scientific | 2025 |
| Nordens Elbil AS | Wholesale & retail | 2021 |
| Nordic Utemiljø AS | Construction | 2026 |
| Nordisk Boligsikring Da | Wholesale & retail | 2009 |
| Norsk Rail Service AS | Professional & scientific | 2015 |