| Ggmu Capital AS | | 2024 |
| GGS 730 AS | Information & communication | 2011 |
| GGS International AS | Professional & scientific | 2021 |
| GGS Invest AS | | 2020 |
| Ggwp Holding AS | Wholesale & retail | 2023 |
| GH Olofsson Bygg & Entreprenad AB Nuf | Construction | 2017 |
| GH Sagførsel AS | Real estate | 2020 |
| GH Tomt AS | Real estate | 2006 |
| GH4S AS | Wholesale & retail | 2019 |
| Ghaly Gruppen AS | Wholesale & retail | 2017 |
| Gharessi Invest AS | Real estate | 2009 |
| Gharib Holding AS | Information & communication | 2018 |
| GHB Invest AS | | 2016 |
| GHD Holding AS | Professional & scientific | 2011 |
| Ghe Holding AS | Real estate | 2021 |
| Ghebremeskel Holding AS | Hospitality | 2020 |
| Ghella Norge AS | Construction | 2020 |
| Ghella S.P.A Nuf | Construction | 2015 |
| GHG Advokatfirma AS | Professional & scientific | 2006 |
| Ghi Sports AS | Wholesale & retail | 2015 |
| Ghibli AS | Professional & scientific | 2007 |
| Ghilardi+Hellsten Arkitekter AS | Professional & scientific | 2007 |
| GHK Capital AS | | 2025 |
| GHN Pharma Nordic AB | Wholesale & retail | 2021 |
| Ghold AS | | 2024 |
| Ghosia Transport AS | Transport & logistics | 2022 |
| Ghost Ctrl AS | | 2024 |
| Ghostbastards AS | Hospitality | 2019 |
| Ghostmedia Kurs Og Event AS | Professional & scientific | 2018 |
| GHS Invest AS | Construction | 2005 |
| GHT Eiendom AS | Real estate | 2015 |
| GHT Håndverkstjenester AS | Construction | 2023 |
| GHT Invest AS | Professional & scientific | 2012 |
| GHV Invest AS | | 2021 |
| Ghy Invest AS | Financial services | 2009 |
| Gi Group Norge AS | Administrative & support | 2026 |
| Gianluca Piccirillo | Hospitality | 2012 |
| Giant Leap Technologies AS | Information & communication | 2000 |
| Giardini AS | Other services | 2003 |
| Gibabo Restaurant AS | Hospitality | 2023 |
| Gid AS | | 2023 |
| Giddygang AS | Information & communication | 2021 |
| Gideonvegen 4 AS | Real estate | 2002 |
| Gief AS | Education | 2019 |
| Giercksky+Nilssen AS | Professional & scientific | 2014 |
| Giertsen Og Co AS | | 2021 |
| Giftguru AS | | 2025 |
| Gifu Da | Arts & recreation | 2024 |
| Gig AS | Arts & recreation | 2024 |
| Gig En AS | Real estate | 1996 |
| Gig Karasek GmbH | | 2005 |
| Gig Networks AS | Information & communication | 2007 |
| Giga Impact Solutions AS | Professional & scientific | 2025 |
| Gigabear AS | Information & communication | 2017 |
| Gigapix AS | Professional & scientific | 2011 |
| Gigja Holding AS | | 2020 |
| Giil Grafisk AS | Professional & scientific | 2017 |
| Gikk AS | Real estate | 2014 |
| Gil Norway AS | Transport & logistics | 2007 |
| Gilb International AS | Education | 2018 |
| Gilb Invest AS | Education | 2018 |
| Gilbert and Partners AS | | 2018 |
| Gilbert Og Voll Da | Information & communication | 2014 |
| Gilbo & Bygg AS | Construction | 2009 |
| Gilbo Eiendomsinvest Ans | Real estate | 2004 |
| Gilbo Invest AS | Health & social care | 1991 |
| Gilda AS | | 2026 |
| Gilde Bygg A/S | Construction | 2009 |
| Gildi AS | | 2023 |
| Gilead Sciences Norway AS | Wholesale & retail | 2007 |
| Gilen Eiendom AS | Real estate | 2012 |
| Gilen Invest AS | Real estate | 2005 |
| Gilhus Bruk AS | Real estate | 2006 |
| Gilhus Invest AS | Real estate | 2006 |
| Gilhusveien 1 AS | Real estate | 2016 |
| Gilhusveien 21 AS | Real estate | 2006 |
| Gill Dagligvare AS | Wholesale & retail | 2003 |
| Gill Holding AS | Wholesale & retail | 2021 |
| Gill Innovation AS | Professional & scientific | 2024 |
| Gillander AS | Professional & scientific | 2026 |
| Gille Advokater Da | Professional & scientific | 2007 |
| Gillebo Skog Ans | Agriculture & fishing | 1987 |
| Gillen & Gude Da | Professional & scientific | 2017 |
| Gillesen Invest AS | | 2021 |
| Gilli Ballais AS | Arts & recreation | 2024 |
| Gillmor AS | Real estate | 2011 |
| Gilroy Family Futures AS | | 2023 |
| Giltor AS | Wholesale & retail | 2022 |
| Gimle Frisør AS | Other services | 2016 |
| Gimle Parfymeri AS | Wholesale & retail | 1939 |
| Gimle Privatundervisning AS | Education | 2026 |
| Gimlegutta AS | Professional & scientific | 2007 |
| Gimletoppen AS | Real estate | 2025 |
| Gimletoppen Meglerfellesskap AS | Real estate | 2002 |
| Gimlevang Boligutvikling AS | Real estate | 2019 |
| Gimleveien 15 Moss AS | Real estate | 2008 |
| Gimleveien 22 Holding AS | Real estate | 2024 |
| Gimleveien 22 Næring AS | Real estate | 2024 |
| Gimpville AS | Information & communication | 2002 |
| Gina Krogsv 1 AS | Households | 1951 |