| Gluckstad AS | Information & communication | 2015 |
| Glucoset AS | Professional & scientific | 2011 |
| Gluecifer Ans | Arts & recreation | 1998 |
| Gluggvaren AS | | 2022 |
| Glumbus AS | Real estate | 2022 |
| Glutenfrihuset AS | Manufacturing | 2022 |
| Gluteus Medius AS | Transport & logistics | 1989 |
| GLV 3-9 AS | Real estate | 2019 |
| GLV Holding AS | | 2024 |
| Glvn AS | Real estate | 2011 |
| GLX Holding AS | Manufacturing | 2017 |
| GLX Holding II AS | | 2025 |
| GLX Mipco AS | Financial services | 2018 |
| Glynitveien 11 AS | Real estate | 2009 |
| Glynitveien 13 AS | Real estate | 2008 |
| Glynitveien 30 AS | Real estate | 2021 |
| Glynitveien 39 AS | Real estate | 2017 |
| Glädje AS | | 2023 |
| Glågen AS | Professional & scientific | 2022 |
| Glåmdal Distribusjon AS | Transport & logistics | 2003 |
| Glåmdal Sykkelverksted AS | Wholesale & retail | 2018 |
| Glærum Kalksteingruve AS | Mining & quarrying | 1991 |
| Glæsel Holding AS | | 2025 |
| Glød Oslo AS | Information & communication | 2025 |
| Glød Studio AS | Arts & recreation | 2020 |
| Glød Yoga AS | Arts & recreation | 2021 |
| Glødelampe AS | Professional & scientific | 2023 |
| Gløer Winsvold AS | | 2021 |
| Gløersen & Olsen AS | Real estate | 1989 |
| Gløs Eiendom AS | Professional & scientific | 2017 |
| Gløttom AS | Financial services | 2005 |
| Glücksgeld AS | | 2018 |
| Glückstadgata 4 AS | Real estate | 2006 |
| Glückstads Gate 1 AS | Real estate | 2021 |
| Glückstads Gate 6 AS | Real estate | 1991 |
| GM Agentur Da | Wholesale & retail | 2024 |
| GM Karlsson Invest AS | | 2017 |
| GM Sers AS | | 2021 |
| GM Service AS | Wholesale & retail | 1999 |
| GM Vagh Invest AS | | 2023 |
| GM Øh Invest AS | | 2023 |
| Gman AS | Professional & scientific | 2023 |
| GMB AS | Information & communication | 2014 |
| GmbH LLC Ltd AS | | 2025 |
| Gmbm AS | Professional & scientific | 2024 |
| GMF Invest AS | | 2024 |
| GMH Invest AS | | 2022 |
| Gmhp Arena Holding AS | Wholesale & retail | 2015 |
| GML Drammensvei 227 Eiendom AS | Real estate | 2014 |
| GMN Holding AS | | 2025 |
| GMS Holding AS | Real estate | 2005 |
| GMS Management Solutions Norge AS | Professional & scientific | 2018 |
| GMT Profits Holding Limited | | 2022 |
| GMT Profits Limited | Real estate | 2021 |
| GMV 16 AS | Real estate | 2023 |
| GN Hearing Norway AS | Wholesale & retail | 1967 |
| GN Kontorservice AS | Real estate | 2023 |
| GN Norway AS | Manufacturing | 2026 |
| GN Sports AS | Professional & scientific | 2026 |
| Gnativ Bygg AS | Construction | 2016 |
| Gneis AS | Professional & scientific | 2009 |
| Gneis Eiendom AS | Real estate | 2008 |
| Gneis Invest AS | Financial services | 2022 |
| Gneisveien 2 AS | Real estate | 2003 |
| Gneisveien 2C AS | Real estate | 2022 |
| Gneisveien 32 AS | Real estate | 2013 |
| Gneisveien 34 AS | Real estate | 2008 |
| Gneisveien 4 AS | Real estate | 2019 |
| Gneisveien 40 AS | Real estate | 2013 |
| Gneisveien 8 Berger AS | Real estate | 1984 |
| GNI1 Holding AS | | 2024 |
| Gnifetti Invest AS | | 2022 |
| Gniks AS | | 2017 |
| Gnilre Securities AS | | 2021 |
| Gnist AI AS | Information & communication | 2024 |
| Gnist Barnehager Utleir AS | | 2011 |
| Gnist Consulting AS | Information & communication | 2019 |
| Gnist Innovation AS | Real estate | 2005 |
| Gnist Invest AS | | 2015 |
| Gnist Partnership AS | Professional & scientific | 2010 |
| Gnist Prosjektstyring AS | Professional & scientific | 2019 |
| Gnist Skoleutvikling AS | Education | 2022 |
| Gnistconsult AS | Professional & scientific | 2025 |
| Gnisten Installasjon AS | Construction | 1994 |
| Gnistre Invest AS | | 2018 |
| Gnistregn Eiendom AS | Professional & scientific | 2022 |
| GNP Næring AS | Real estate | 2021 |
| Gnpartner Oü Nuf | Information & communication | 2024 |
| GNS Transport AS | Transport & logistics | 2026 |
| Gnsl Holding AS | Real estate | 2023 |
| GNT AS | Real estate | 2018 |
| Gnø Holding AS | | 2023 |
| Go All Trading Academy Limited | Wholesale & retail | 2021 |
| Go Digital Trans AS | Professional & scientific | 2021 |
| Go Electra AS | Professional & scientific | 2011 |
| Go Event AS | Administrative & support | 2011 |
| Go Ferie Drift AS | Real estate | 2016 |
| Go Green Holding AS | Wholesale & retail | 2007 |
| Go Marked AS | Wholesale & retail | 2023 |
| Go Nails AS | Other services | 2018 |