| Güven Eiendom AS | Real estate | 2021 |
| Hagen Bil AS | Wholesale & retail | 1994 |
| Haugaland Markiser AS | Wholesale & retail | 2015 |
| HBH Maleservice AS | Construction | 2008 |
| Heatit Controls AS | Wholesale & retail | 2000 |
| Helsesmie AS | Health & social care | 2020 |
| Henriksveen Holding AS | Real estate | 2023 |
| HFK Eiendom AS | Real estate | 2011 |
| HM Utleie AS | Hospitality | 2025 |
| Holmen Eiendom AS | Real estate | 1992 |
| Holthe Utvikling AS | | 2026 |
| Htsf Holding AS | | 2019 |
| Hunn Eiendom AS | Real estate | 1991 |
| Hunndalen Apotek AS | Wholesale & retail | 2024 |
| Hunndalen Auto AS | Other services | 2012 |
| Hunndalen Bensin & Kiosk AS | Real estate | 2012 |
| Hunndalen Bilpleie AS | Other services | 2024 |
| Hunndalen Eiendom AS | Real estate | 2023 |
| Huskestua Barnehage Hunndalen SA | Education | 1989 |
| Håkon Ulvesveen AS | Construction | 2023 |
| Igl Holding AS | Financial services | 2005 |
| Ingvaldsen & Myrstuen AS | Construction | 2014 |
| Innlandet Bilutleie AS | Administrative & support | 2021 |
| Innlandet Tilhengersenter AS | Wholesale & retail | 2021 |
| Isdamveien Eiendom AS | Real estate | 2021 |
| Johanstuen Invest AS | Manufacturing | 2005 |
| JP Bygg Og Betong AS | Construction | 2019 |
| JR VVS & Anlegg AS | Construction | 2020 |
| JT Busterud Holding AS | | 2024 |
| JT Crest AS | | 2026 |
| Ka-Barlund Holding AS | Professional & scientific | 2023 |
| Kalkveien 9 AS | Real estate | 1998 |
| Karosseriforum AS | Other services | 2008 |
| Key AS | Administrative & support | 2005 |
| Kitchen & Living Group AS | Wholesale & retail | 2018 |
| Kna Auto AS | Real estate | 2009 |
| Kontorleverandøren Gjøvik AS | Wholesale & retail | 1998 |
| Kortfattet.No AS | Professional & scientific | 2018 |
| KR Eiendomsutvikling AS | Real estate | 2013 |
| Krog AS | Wholesale & retail | 2012 |
| Krog Maskin AS | Manufacturing | 2011 |
| L&J Consulting AS | Information & communication | 2024 |
| Lars Topco AS | Professional & scientific | 2024 |
| Larsen Finans AS | Construction | 2003 |
| Larsens Kjøleservice AS | Construction | 1989 |
| Las Eiendom AS | Real estate | 2025 |
| Lef Holding AS | Real estate | 2015 |
| Lekeland 1 Gjøvik AS | Arts & recreation | 2005 |
| Lena Utvikling AS | Real estate | 2021 |
| Lillehammer Fjelleiendom AS | Real estate | 2019 |
| Lillekollen Eiendom AS | Real estate | 2011 |
| Lillekollen Legesenter Da | Health & social care | 2001 |
| Linnerud Eiendom AS | Real estate | 2003 |
| Linnerud Holding AS | Wholesale & retail | 2005 |
| Lphh AS | | 2021 |
| M Solbu Holdings AS | | 2023 |
| M-Service AS | Other services | 2015 |
| M. H Eiendom AS | Real estate | 2023 |
| Maks Bolig AS | Real estate | 2016 |
| Mattisrudsvingen 21 AS | Real estate | 2008 |
| Mediautvikling Øst Da | Professional & scientific | 1995 |
| Mehl Utleie AS | Real estate | 2018 |
| Metallco Ee Norge AS | Water & waste | 1999 |
| Metallco Eiendom Hunndalen AS | Real estate | 2023 |
| Metallco NMF AS | Water & waste | 1999 |
| Metallco Oppland AS | Water & waste | 1960 |
| Mjøsa Varmepumpeservice AS | Construction | 2023 |
| Mjøsbygg AS | Construction | 2022 |
| Mjøskjøkken AS | Wholesale & retail | 2019 |
| Mjøsservice AS | Wholesale & retail | 2012 |
| Mobile Gjøvik AS | Wholesale & retail | 1986 |
| Motornova Da | Wholesale & retail | 2010 |
| MS Renhold AS | Administrative & support | 2015 |
| Multi Way AS | Hospitality | 1992 |
| Mycamp AS | Wholesale & retail | 2020 |
| Natre Vinduer AS | Manufacturing | 2005 |
| NB Properties AS | Professional & scientific | 2022 |
| Nedre Holmen Veg 1 AS | Real estate | 2017 |
| Nedre Torvgate 3 AS | Real estate | 2007 |
| Nina Reynisdottir Holding AS | | 2021 |
| Noab AS | Real estate | 1995 |
| Nooa Utvikling AS | Real estate | 2020 |
| Nordby Skogsdrift AS | Agriculture & fishing | 2024 |
| Nordcon AS | Wholesale & retail | 2014 |
| Nordconstruct AS | Professional & scientific | 2025 |
| Norill Søm AS | Manufacturing | 2018 |
| Nyvegen AS | Real estate | 2018 |
| Oak and Ashborn AS | | 2025 |
| Oppland Bygg Og Vedlikehold AS | Construction | 2021 |
| Oppland Finans AS | Real estate | 2005 |
| Oppland Metall Transport AS | Transport & logistics | 1998 |
| Ori Real Estate & Homeservice Nuf | Real estate | 2019 |
| Paganus AS | Real estate | 2015 |
| Paul Berg AS | Construction | 2008 |
| Paul Berg Eiendom AS | Real estate | 1974 |
| Paul Berg Holding AS | Construction | 2000 |
| Peba AS | Professional & scientific | 2019 |
| PK Eiendomsdrift AS | Real estate | 2018 |
| Pki AS | Wholesale & retail | 2016 |
| Poleringskongen AS | Wholesale & retail | 2010 |