| Fåberg Vestside Utmarkslag SA | Arts & recreation | 1926 |
| Fåberg Østsides Utmarkslag SA | Arts & recreation | 1880 |
| Fåberggata 116-128 AS | Real estate | 1986 |
| Fåberggata 131 AS | Real estate | 2025 |
| Fåberggata Mat AS | Wholesale & retail | 2019 |
| Fåvang Futurum AS | Real estate | 2021 |
| G-Rois AS | | 2026 |
| Gaia Mat AS | Wholesale & retail | 2019 |
| Galleri Zink AS | Wholesale & retail | 2021 |
| Galterudskogen AS | Real estate | 2023 |
| Gamle Aarstad & Bjørnhaug Bemanning AS | Administrative & support | 2011 |
| Gamle Mølla AS | Real estate | 2013 |
| Gamlevegen 222 AS | Real estate | 2022 |
| Ganske Fint Holding AS | | 2025 |
| Gara Holding AS | | 2010 |
| Gard Løkke AS | Arts & recreation | 2026 |
| Gata Reklame AS | Professional & scientific | 2016 |
| Gaus AS | Real estate | 1994 |
| Gaus Biri AS | Real estate | 2022 |
| Gaus Dokka AS | Real estate | 2018 |
| Gaus Fagernes AS | Real estate | 2020 |
| Gaus Flisa AS | Real estate | 2019 |
| Gaus Gjøvik AS | Real estate | 2007 |
| Gaus Hafjell AS | Real estate | 1972 |
| Gaus Jessheim AS | Real estate | 1989 |
| Gaus Moelv AS | Real estate | 2019 |
| Gaus Mohagan AS | Real estate | 2003 |
| Gaus Rena AS | Real estate | 2001 |
| Gaus Ringebu AS | Real estate | 1961 |
| Gausa Eiendom Ans | Real estate | 2001 |
| Gausbygg Outlet AS | Wholesale & retail | 2019 |
| Gausdal Landhandleri Transport AS | Transport & logistics | 2020 |
| Gausdal Trykkeri AS | Manufacturing | 1987 |
| Gaute Arnegard Holding AS | | 2026 |
| Geas Eiendom AS | Real estate | 2018 |
| Geir Bø Revisjon AS | Financial services | 1993 |
| Geischa AS | Real estate | 2005 |
| Gjedda Eiendom AS | Real estate | 1997 |
| Gjerdalen Entreprenør AS | Construction | 2020 |
| Gjerdalen Invest AS | Real estate | 2018 |
| Gjerdalen Kjøleservice AS | Construction | 2016 |
| Gjerdalen Service AS | Construction | 2019 |
| Gjerdrums AS | Professional & scientific | 2019 |
| GL Eiendomsutvikling AS | Real estate | 2018 |
| Glamitec Norge AS | Wholesale & retail | 2012 |
| Global Healthcare Solutions AS | Health & social care | 2019 |
| Global Mat Ans | Wholesale & retail | 2005 |
| Global Mat Da | Wholesale & retail | 2004 |
| Glør Partner AS | Transport & logistics | 2002 |
| Godhavn AS | Real estate | 2006 |
| Godsveen AS | Professional & scientific | 2016 |
| Gonet Empire AS | | 2021 |
| Graff Eiendom Kirkenes AS | Real estate | 2010 |
| Graff Regnskap Og Rådgivning AS | Professional & scientific | 2023 |
| Granbu Invest AS | | 2024 |
| Grandgården Lillehammer AS | Real estate | 2018 |
| Grantoppen AS | Real estate | 2021 |
| Granum Bakeri AS | Manufacturing | 1994 |
| Graver'N Innlandet AS | Construction | 2025 |
| Grendeliv Da | Agriculture & fishing | 2010 |
| Grethe Kvamme AS | Health & social care | 2026 |
| Gråskallen Holding AS | Professional & scientific | 2005 |
| Grønstadgaten Garasjelag SA | Households | 2001 |
| Grønt Reiseliv AS | Professional & scientific | 1993 |
| GSG Investering AS | Real estate | 2019 |
| Gsi Gausdal Sewing Industry AS | Manufacturing | 2015 |
| Gsit Consulting AS | Information & communication | 2015 |
| Gudbrandsdal Eiendomsservice AS | Administrative & support | 2015 |
| Gudbrandsdalen Glass AS | Construction | 2013 |
| Gudbrandsdalen Maskinutvikling AS | Manufacturing | 1989 |
| Gudbrandsdalen Rental Hub AS | Hospitality | 2025 |
| Gudbrandsdalens Uldvarefabrik AS | Manufacturing | 2010 |
| Gudbrandsdalens Uldvarefabrik Eiendom AS | Real estate | 2010 |
| Gudbrandsdalens Uldvarefabrik Holding AS | Manufacturing | 1962 |
| Gudbrandsdølen AS | Information & communication | 1988 |
| Gudbrandsdølen Dagningen AS | Information & communication | 1991 |
| Gudbrandsdølen Eiendom AS | Information & communication | 2008 |
| Gula Holding AS | Agriculture & fishing | 2020 |
| Gulv Og Malerservice AS | Construction | 2013 |
| Gundersen Maskinservice AS | Construction | 2005 |
| Gunnagarden AS | Financial services | 2016 |
| Gunnarson Invest AS | Financial services | 2016 |
| Gunving AS | | 2018 |
| Gausdal Landhandleri AS | Wholesale & retail | 1983 |
| Gården AS | Professional & scientific | 2012 |
| Gårdssag AS | Professional & scientific | 2023 |
| H Stokkebek Holding AS | | 2022 |
| H. M. Stavseth & Co. AS | Real estate | 2005 |
| Ha Holding AS | Financial services | 2005 |
| Haagensen Dagligvare AS | Wholesale & retail | 2023 |
| Haakons Pub AS | Hospitality | 1995 |
| Haavard Lunde Eiendom AS | Real estate | 2013 |
| Hafjell Holding AS | Other services | 2018 |
| Hafslund Kraft Innlandet AS | Energy | 2004 |
| Hagehaugen Barnehage SA | Education | 1989 |
| Hagen Hydronics AS | Professional & scientific | 2016 |
| Hagen Rør, Bygg Og Anlegg AS | Construction | 2024 |
| Hagevegen 15B AS | Real estate | 2017 |
| Hageveien 4 AS | Real estate | 2005 |
| Hageveien 4 Hjemmel AS | Real estate | 2005 |