| Future Exploration AS | Real estate | 2003 |
| FXF AS | | 2025 |
| Fycon AS | Professional & scientific | 2004 |
| Fylde Petroleum Ltd | Professional & scientific | 2011 |
| Fyndel AS | Financial services | 2012 |
| Fyrholmen AS | Transport & logistics | 2005 |
| Fyrlykt AS | Information & communication | 2019 |
| Fyrstikk AS | Professional & scientific | 2024 |
| Fysio- & Manuellterapi AS | Health & social care | 2021 |
| ForsBrokers A/S | Real estate | 1985 |
| Føl Deg Vel AS | Wholesale & retail | 2012 |
| Føniks Eiendom AS | Real estate | 2025 |
| Føniks Forvaltning AS | Real estate | 2020 |
| Føniks Innovasjon AS | Professional & scientific | 2019 |
| Førtito AS | | 2023 |
| G Arkitekter AS | Professional & scientific | 2006 |
| G Haugsgjerd Trafikkskole AS | Education | 1983 |
| G Vask AS | Administrative & support | 2022 |
| G&T Solutions AS | Professional & scientific | 2022 |
| G-Mann Invest AS | Hospitality | 2003 |
| G-Nrgy Norway AS | Energy | 2025 |
| G-Service AS | Construction | 2023 |
| G-Squared AS | Professional & scientific | 2018 |
| G. Aksdal Service AS | Construction | 2023 |
| G4Z Group AS | Professional & scientific | 2024 |
| Gaak Holding AS | Other services | 2017 |
| Gabbas Holding AS | Financial services | 2005 |
| Gaining by Sharing AS | Professional & scientific | 2017 |
| Gainzi AS | Professional & scientific | 2021 |
| Gajo Invest AS | Real estate | 2001 |
| Gala - Bygg Da | Construction | 2009 |
| Galdor Exploration AS | Mining & quarrying | 2026 |
| Galei AS | Financial services | 2018 |
| Galeivågen Eiendom AS | Real estate | 1999 |
| Galleri Eiendomsmegling AS | Real estate | 2021 |
| Galleri Hervold AS | Wholesale & retail | 2021 |
| Galleri Opdahl AS | Wholesale & retail | 2020 |
| Galta Invest AS | Financial services | 2012 |
| Gamle Eigerøyveien 33 AS | Real estate | 2016 |
| Gamle Forusvei 11 AS | Real estate | 2013 |
| Gamle Forusvei 6 AS | Real estate | 1993 |
| Gamle Forusveien 10 AS | Real estate | 2014 |
| Gamle Forusveien 12C AS | Real estate | 2008 |
| Gamle Forusveien 51 AS | Real estate | 2006 |
| Gamle Forusveien 51B AS | Real estate | 2007 |
| Gamle Forusveien 53 AS | Real estate | 1974 |
| Gamle Forusveien 53B AS | Real estate | 2011 |
| Gamleveien 4 Cø AS | Real estate | 2025 |
| Gamleveien 57 AS | Construction | 2011 |
| Gamleveien Lura AS | Real estate | 1995 |
| Gampen Invest AS | Financial services | 2012 |
| Gand Eiendom AS | Real estate | 2005 |
| Gangaren 10 AS | Real estate | 2011 |
| Ganggoit Holding AS | | 2026 |
| Gank Hodl AS | | 2022 |
| Gaply AS | Information & communication | 2019 |
| Gardermoen Tomt AS | Real estate | 2006 |
| Gardin Vest AS | Real estate | 2020 |
| Garnbørsen AS | Wholesale & retail | 2017 |
| Garneng Academy AS | Education | 2018 |
| Garneng Kapital AS | Professional & scientific | 2012 |
| Garnkilden AS | Wholesale & retail | 2015 |
| Garp City AS | Professional & scientific | 2013 |
| Garpestad AS | Information & communication | 2005 |
| Gas Turbine Services Norway AS | Wholesale & retail | 2003 |
| Gastro Nova AS | Health & social care | 2005 |
| Gateway.Fm AS | Information & communication | 2021 |
| Gausdal Investering AS | Real estate | 1999 |
| Gausel Frisør Ans | Other services | 1991 |
| Gausel Invest AS | Financial services | 2017 |
| Gausel Investering AS | Real estate | 1998 |
| Gauselbakken 8 Eiendom AS | Real estate | 2014 |
| Gauselbakken AS | Real estate | 2003 |
| Gauselbakken Barnehage SA | Education | 2003 |
| Gauselskogen Eiendom 14208 AS | Real estate | 2021 |
| Gauselsplitten Eiendom AS | Real estate | 2004 |
| Gauseltoppen Invest AS | Real estate | 2015 |
| Gauselveien 90 AS | Real estate | 1998 |
| Gauselvågen 58 AS | Real estate | 2018 |
| Gauselvågen 64 AS | Real estate | 2020 |
| Gaute Consulting AS | Professional & scientific | 2005 |
| Gaute Moen Regnskap AS | Professional & scientific | 1987 |
| Gave & Hobbykroken Ans | Wholesale & retail | 1991 |
| GB Montasje AS | Construction | 2020 |
| Gbe Invest AS | Financial services | 2015 |
| GBT AS | Real estate | 2010 |
| GCB Enterprise AS | Real estate | 2006 |
| Gco Holding AS | Real estate | 2022 |
| GDD Consulting AS | Professional & scientific | 2023 |
| Ge Lager AS | Real estate | 2024 |
| Ge Oil & Gas UK Limited | Manufacturing | 1995 |
| Gebeco AS | Real estate | 1997 |
| Gece AS | Financial services | 2005 |
| Geeses AS | Professional & scientific | 2024 |
| Geezaproductions AS | Arts & recreation | 2021 |
| Gehalt AS | Real estate | 2023 |
| Geitastova Barnehage SA | Education | 1994 |
| Gekkie AS | Information & communication | 2026 |
| Gelix AS | Professional & scientific | 2024 |
| Gellein Management Consulting AS | Professional & scientific | 2005 |