| G&M Food AS | Hospitality | 2024 |
| G-Mobility AS | Administrative & support | 2022 |
| G. Strømme Holding AS | Financial services | 2003 |
| G.L.A. Eiendom AS | Real estate | 2009 |
| Gabrielsens Maskinforretning AS | Wholesale & retail | 1988 |
| Gadder AS | Information & communication | 2024 |
| Gaffaekspressen AS | Transport & logistics | 2021 |
| Gaffasquad Production AS | Real estate | 2005 |
| Gag Invest AS | Financial services | 2011 |
| Galeon Norge AS | Wholesale & retail | 2019 |
| Galgebergtangen AS | Real estate | 2006 |
| Galleri Amatør Ans | Wholesale & retail | 1998 |
| Galleri Bi-Z AS | Wholesale & retail | 2006 |
| Galleri Hestman AS | Arts & recreation | 2023 |
| Galteland Invest AS | Real estate | 2005 |
| Gama Booking AS | Information & communication | 2023 |
| Gamechanger Invest AS | Financial services | 2011 |
| Gamezone AS | Wholesale & retail | 2003 |
| Gamle Andøyvei 2 AS | Real estate | 2009 |
| Gamle Oddernes Rådhus AS | Real estate | 2007 |
| Gangdalen Eiendom AS | Real estate | 2023 |
| Gangdalen Invest AS | Professional & scientific | 2018 |
| Gangdalen Syd AS | Real estate | 2012 |
| Gao AS | Transport & logistics | 2020 |
| Gar AS | Professional & scientific | 1990 |
| Garasjelaget Skonnertveien SA | Real estate | 1976 |
| Garatun Consulting AS | Information & communication | 2026 |
| Gardin Studio AS | Wholesale & retail | 1997 |
| Garman Invest AS | | 2025 |
| Garveriet Invest AS | Real estate | 2003 |
| Gberg Invest AS | Real estate | 2001 |
| GBS AS | Wholesale & retail | 2022 |
| Gbø Holding AS | Real estate | 2005 |
| Gce Node Service AS | Professional & scientific | 2015 |
| GD Invest AS | Real estate | 2005 |
| Ge Flis AS | Construction | 2006 |
| Ge Sangvik Holding AS | | 2020 |
| Gecko Eiendom AS | Real estate | 2006 |
| Geek AS | Information & communication | 2025 |
| Gefjon Holding AS | Professional & scientific | 2014 |
| Gefre Holding AS | Transport & logistics | 2014 |
| Geheb Conditori AS | Manufacturing | 1998 |
| Geheb Conditori M6 AS | Hospitality | 2017 |
| Geheb Conditori Sørlandssenteret AS | Hospitality | 2012 |
| Geir Grindland Invest AS | Hospitality | 2016 |
| Geir Inge Vik AS | Real estate | 2004 |
| Geirs Bilinvest AS | Real estate | 2022 |
| Geitmyra Kristiansand Matkultursenter for Barn AS | Education | 2018 |
| Gekkis Tegneseriesjappe AS | Wholesale & retail | 2008 |
| Generalmajoren AS | Hospitality | 2019 |
| Generator Digital AS | Professional & scientific | 2017 |
| Generon Norway AS | Wholesale & retail | 2019 |
| Geo-Tex AS | Wholesale & retail | 2014 |
| Ger Nor AS | Hospitality | 2011 |
| Gerd Produksjonskollektiv AS | Information & communication | 2022 |
| Gest Capital Management AS | Real estate | 2012 |
| Gestaltterapi I Fokus AS | Health & social care | 2016 |
| Gevir Invest AS | Financial services | 2012 |
| GF Holding AS | | 2005 |
| Gfeuda AS | | 2009 |
| Gge AS | Real estate | 2008 |
| Gge Scandinavia AS | Education | 2019 |
| GH Ventures AS | Information & communication | 2021 |
| GHV AS | Construction | 1972 |
| Gifty AS | Information & communication | 2018 |
| Giggen AS | Real estate | 2008 |
| Gimel AS | Real estate | 2005 |
| Gimle Eiendomsinvest AS | Real estate | 2022 |
| Gimle Legesenter AS | Health & social care | 2019 |
| Gir Tilbake AS | Administrative & support | 2020 |
| Gitaristen AS | Arts & recreation | 2001 |
| Giustech AS | Professional & scientific | 2025 |
| GJ Capital AS | Professional & scientific | 2018 |
| Gjeldslia AS | Real estate | 2022 |
| Gjermund Flaa Invest AS | Real estate | 2005 |
| Gjerustad Dagligvare AS | Wholesale & retail | 2019 |
| Gjest AS | Professional & scientific | 2021 |
| Gji AS | | 2022 |
| GK Holding & Consult AS | Professional & scientific | 2013 |
| GK Utvikling AS | Real estate | 2006 |
| Glass Holding AS | Real estate | 2001 |
| Glasshuset Skibåsen AS | Real estate | 2005 |
| GLB Handel AS | Wholesale & retail | 2024 |
| Glede Glede Glede AS | Wholesale & retail | 2020 |
| Glencore Nikkelverk AS | Manufacturing | 1929 |
| Gleodden Invest AS | Financial services | 2014 |
| Glimra AS | Professional & scientific | 2019 |
| Glittertind Energi AS | Professional & scientific | 2025 |
| Global Castings Kristiansand AS | Manufacturing | 1947 |
| Global Connect AS | Information & communication | 2025 |
| Global Energy Repurpose AS | Wholesale & retail | 2021 |
| Global Green Capital AS | Real estate | 2020 |
| Global Matsenter AS | Wholesale & retail | 2013 |
| Globetech AS | Information & communication | 2016 |
| Gluon AS | Manufacturing | 2021 |
| Gms-Eiendom AS | Real estate | 1973 |
| GMV Invest AS | | 2019 |
| Gneisveien 9 AS | Real estate | 2018 |
| Go Norway AS | Administrative & support | 2023 |
| Go on Shop Norge AS | Wholesale & retail | 2023 |