| Gjerdrums Vei 14-16 AS | Real estate | 2006 |
| Gjerdrums Vei 17 AS | Real estate | 2006 |
| Gjerdrums Vei 3 AS | Real estate | 2015 |
| Gjerdrums Vei 5 AS | Real estate | 2007 |
| Gjerdrums Vei 8 AS | Real estate | 2018 |
| Gjerdrums Vei 9 AS | Real estate | 2006 |
| Gjerdrumsvei 19 AS | Real estate | 2021 |
| Gjerdrumsvei 19 Eiendomsinvest AS | Real estate | 2021 |
| Gjerdrumsvei 3 AS | Real estate | 2005 |
| Gjermalenko Invest AS | | 2026 |
| Gjermund AS | | 2023 |
| Gjermund Nysveen AS | Health & social care | 2007 |
| Gjerpe Holding AS | Real estate | 2005 |
| Gjerpen B5 AS | Real estate | 2020 |
| Gjerrestad Holding AS | | 2020 |
| Gjerrestad Invest AS | Construction | 2020 |
| Gjersrud Utvikling AS | Real estate | 2022 |
| Gjersvik Holding AS | | 2023 |
| Gjert Brun Holding AS | Financial services | 2005 |
| Gjertsen AS | Information & communication | 2022 |
| Gjervalåga Kraftverk AS | Energy | 2023 |
| Gjervan Eiendom AS | | 2024 |
| Gjesdahl AS | | 2019 |
| Gjesdal Ventures AS | | 2021 |
| Gjessing Og Sønn AS | Health & social care | 1961 |
| Gjestadtunene Holding AS | | 2017 |
| Gjesten Kvartalet AS | Real estate | 2011 |
| Gjesters AS | Information & communication | 2021 |
| Gjestvang Eiendom AS | Real estate | 2018 |
| Gjete AS | Professional & scientific | 2022 |
| Gjeto AS | | 2022 |
| Gjett Vest AS | Real estate | 2002 |
| Gjettum Bolig AS | Real estate | 2012 |
| Gjettum Eiendom AS | Real estate | 2019 |
| Gjettum Stasjon AS | Real estate | 1967 |
| Gjettum Utvikling AS | Real estate | 2016 |
| Gjettumgrenda AS | Financial services | 2017 |
| Gjettumgrenda KS | Real estate | 2017 |
| Gjev AS | Real estate | 2005 |
| GJG Holding AS | Real estate | 2016 |
| Gjærum Holding AS | | 2020 |
| Gjærvågskauen Utvikling AS | Real estate | 2025 |
| Gjøa AS | Financial services | 1993 |
| Gjøen Arkitekter AS | Professional & scientific | 2008 |
| Gjøkeredet Film AS | Information & communication | 2022 |
| Gjøll AS | | 2024 |
| Gjønnes Modern Lifestyle AS | | 2019 |
| Gjønnesjordet 10 AS | Real estate | 2013 |
| Gjønnesjordet AS | Real estate | 2024 |
| Gjør Det Enkelt AS | Professional & scientific | 2023 |
| Gjør Verden Vakrere AS | Information & communication | 2024 |
| Gjørstads Gate 4 AS | Households | 1915 |
| Gjørstads Gate 4 Holding AS | Real estate | 2022 |
| Gjørven Holding AS | | 2018 |
| Gjøvik Gata Mat Ans | Wholesale & retail | 2003 |
| Gjøvik Handelspark 2 AS | Real estate | 1932 |
| Gjøvik Handelspark AS | Real estate | 2007 |
| Gjøvik Midco AS | Real estate | 2025 |
| Gjøvik Tannregulering Senter AS | Health & social care | 2013 |
| GK & SP Rådgivning AS | Financial services | 2022 |
| GK Enterprise AS | Information & communication | 2023 |
| GK Gruppen AS | Construction | 2016 |
| GK Gruppen Eiendom AS | Real estate | 2017 |
| GK Invest Holding AS | Real estate | 2005 |
| GK It-Tjenester Ans | Information & communication | 2005 |
| GK Nordic Holding AS | | 2019 |
| GK Norge AS | Construction | 2015 |
| GK Norge Utleie AS | Construction | 2020 |
| GKH AS | Health & social care | 2017 |
| GKH Invest AS | | 2018 |
| GKH Invest Holding AS | | 2018 |
| Gkon Industri AS | Construction | 2020 |
| GL & V Celleco AB | Wholesale & retail | 1999 |
| GL 73 Næring AS | Real estate | 2016 |
| GL Holding AS | Financial services | 2007 |
| GL Industries AS | Financial services | 2013 |
| GL Produkter Gunnar Olof Larsson | Manufacturing | 2007 |
| GL Utvikling AS | Real estate | 2020 |
| Gl-Invest AS | Professional & scientific | 2006 |
| Gla'Kiosken Da | Wholesale & retail | 2003 |
| Glaamene Industrier AS | Financial services | 1989 |
| Glace Holdco AS | Manufacturing | 2017 |
| Glacier Link Capital 2 AS | | 2025 |
| Glacier Link Capital AS | Professional & scientific | 2021 |
| Glacier Link Investment Consulting AS | Professional & scientific | 2019 |
| Glad I Holding AS | | 2023 |
| Glad Invest AS | | 2021 |
| Glad Tannregulering AS | Health & social care | 2023 |
| Gladbakst AS | Manufacturing | 2019 |
| Glade Dager AS | Professional & scientific | 2015 |
| Glade Smil AS | Other services | 2015 |
| Gladengbygg AS | Households | 1947 |
| Gladengen Bolig AS | Real estate | 2017 |
| Gladengen Boligutvikling AS | Real estate | 2005 |
| Gladengen Drift AS | Hospitality | 2002 |
| Gladengveien 15 Eiendom AS | Real estate | 2022 |
| Gladengveien 15 Festetomt Da | Real estate | 2010 |
| Gladengveien 15 Parkeringshus AS | Real estate | 2023 |
| Gladengveien 16 AS | Real estate | 2000 |
| Gladengveien 17 Ans | Real estate | 1987 |