| Fritim AS | Information & communication | 2026 |
| Frode Halberg AS | Construction | 2012 |
| Frozensoft Software AS | Information & communication | 2025 |
| Frydenlundvegen 21 AS | Real estate | 2025 |
| Frydenlundveien 2 AS | Real estate | 1968 |
| Frydenlundveien 2B AS | Real estate | 2018 |
| Fuego Padel I AS | Arts & recreation | 2022 |
| Fugleperspektivet Interiørarkitekt AS | Professional & scientific | 2017 |
| Furuly Capital AS | Real estate | 2007 |
| FV 408 Holding AS | | 2023 |
| FYSIO3 AS | Health & social care | 2009 |
| Fønix Elverum AS | Real estate | 1997 |
| G Fylking AS | Health & social care | 1988 |
| Gaevo AS | Real estate | 1996 |
| Gaffel&Karaffel Da | Administrative & support | 2008 |
| Galgeberget AS | Real estate | 2005 |
| Garvergården AS | Real estate | 2016 |
| Garvergården Eiendom AS | | 2015 |
| Garvergården Holding AS | Real estate | 2015 |
| GBM Invest AS | | 2020 |
| Gem Fysio AS | Health & social care | 2013 |
| Generalgården AS | Hospitality | 2024 |
| Gfh.No AS | Wholesale & retail | 2013 |
| Gjærum Invest AS | | 2024 |
| GK Service AS | Administrative & support | 2023 |
| Glitre Kolonial AS | Wholesale & retail | 2025 |
| Globoseum Media AS | Information & communication | 2025 |
| Glomma Fiberplast AS | Manufacturing | 1967 |
| Glomma Varebil Tak Og Stige-Service AS | Construction | 2019 |
| Glommen Eiendom AS | Real estate | 2020 |
| Glommen Mat AS | Wholesale & retail | 2021 |
| Glommen Mjøsen Holding AS | Wholesale & retail | 2020 |
| Glommen Mjøsen Skog SA | Wholesale & retail | 2005 |
| Glommen Skog AS | Wholesale & retail | 1986 |
| Glommen Skogstjenester AS | Agriculture & fishing | 2019 |
| Glommen Technology AS | Professional & scientific | 2017 |
| Glomvassbu Invest AS | Financial services | 2005 |
| Glåmstad Holding AS | Financial services | 2005 |
| GMS Flisa Eiendom AS | Real estate | 2025 |
| GMS Koppang Eiendom AS | Real estate | 2025 |
| GMS Ørje Eiendom AS | Real estate | 2025 |
| Go Biten Håvard Meek Mathisen Og Trine Busterud Da | Wholesale & retail | 2000 |
| Gobowl AS | Hospitality | 2025 |
| God Rygg AS | Health & social care | 2015 |
| Grande Beauty AS | Other services | 2025 |
| Gravhaugen AS | Construction | 2021 |
| Grindalen Gård AS | Real estate | 2006 |
| Grindalsveien 1 Ans | Real estate | 2004 |
| Grinden Salg Og Service AS | Wholesale & retail | 2021 |
| Grønnmyra Fus Barnehage AS | Education | 2018 |
| Grøtterud Veterinærtjenester AS | Professional & scientific | 2025 |
| Grøtting Olje AS | Transport & logistics | 2012 |
| GTV32C AS | | 2024 |
| Gundersen Autoservice AS | Other services | 2020 |
| GW Goggen Holding AS | | 2020 |
| Gårdslykke Bo Og Habilitering AS | Health & social care | 2023 |
| H.W.O. Holding AS | Financial services | 2014 |
| Haar 111 AS | Other services | 2024 |
| Hagaseterveien SA | Real estate | 1959 |
| Hagen Barnehage SA | Education | 1993 |
| Hagen Vannverk SA | Water & waste | 1950 |
| Hagens Parfymeri AS | Wholesale & retail | 2024 |
| Hakkebakkeskogen Naturbarnehage SA | Education | 2004 |
| Halbakken Holding AS | | 2005 |
| Hamar Fasadevask AS | Administrative & support | 2012 |
| Hamar Fasadevask. AS | Administrative & support | 2024 |
| Hanae Heggour AS | Wholesale & retail | 2025 |
| Hanstad Bygdeservice AS | Construction | 2015 |
| Hanstad Bygg AS | Construction | 2024 |
| Hanstad Invest AS | Arts & recreation | 2021 |
| Hartz Dental AS | Health & social care | 2012 |
| Harviken Bygg AS | Construction | 2021 |
| Harviken Holding AS | Real estate | 2021 |
| Hassan Elverum Systue AS | Manufacturing | 2023 |
| Hatosa AS | Professional & scientific | 2023 |
| Hattrem Maskin AS | Construction | 2024 |
| HBH Invest AS | | 2017 |
| HC Portfolio AS | Real estate | 2017 |
| Hedmark Elementmontasje AS | Construction | 2015 |
| Hedmark Hudlegesenter AS | Health & social care | 2017 |
| Hedmark Reisebyrå AS | Administrative & support | 2000 |
| Hedmark Skumplast & PVC AS | Wholesale & retail | 2015 |
| Hedmark Spesialistsenter Da | Health & social care | 2012 |
| Hedmark Tre & Flis AS | Agriculture & fishing | 2015 |
| Hedmark Ventilasjon AS | Construction | 2010 |
| Hedmarken Skog & Hagemiljø AS | Agriculture & fishing | 2008 |
| Hedskog AS | Agriculture & fishing | 2015 |
| Hegg Elektro AS | Construction | 2023 |
| Heiertz Holding AS | Real estate | 2012 |
| Heimen AS | Real estate | 2014 |
| Hel Helse AS | Health & social care | 2022 |
| Heldaas Invest AS | Real estate | 2023 |
| Hellebekken AS | Real estate | 2005 |
| Helseartikler AS | Wholesale & retail | 1987 |
| Helsetorget Legesenter AS | Health & social care | 2023 |
| Helstad AS | Wholesale & retail | 1997 |
| Heramb Media AS | Manufacturing | 2015 |
| Herd AS | Construction | 1980 |
| Herd Eiendom AS | Real estate | 2019 |
| Herd Invest AS | Real estate | 2003 |