| G Flansa AS | Hospitality | 2013 |
| G Jørgensen AS | | 2021 |
| G Management & Productions AS | Arts & recreation | 2016 |
| G R Fuglesangs Sønner AS | Wholesale & retail | 1989 |
| G Thorsnes Holding AS | | 2026 |
| G Thrane Invest AS | Financial services | 2005 |
| G Travel International AS | Administrative & support | 2020 |
| G W Linnekogel & Søn AS | Real estate | 1992 |
| G&A Air AS | Transport & logistics | 2014 |
| G&A Prosjekt AS | Construction | 2021 |
| G&G Brothers AS | Construction | 2012 |
| G&G Byggservice AS | Construction | 2024 |
| G&G Consulting AS | Wholesale & retail | 2021 |
| G&P Invest AS | | 2024 |
| G&P Service AS | Administrative & support | 2012 |
| G&S Holding AS | Professional & scientific | 2008 |
| G&V Maritim AS | Professional & scientific | 2021 |
| G-Dog AS | | 2024 |
| G-Paradise AS | | 2021 |
| G-Shop AS | Wholesale & retail | 2022 |
| G-Squad AS | | 2026 |
| G-Star Holding AS | | 2024 |
| G. Berggren AS | Wholesale & retail | 2018 |
| G. Christensen Eiendom AS | Real estate | 2007 |
| G. Greve Creations AS | Arts & recreation | 2019 |
| G. Greve Holding AS | Professional & scientific | 2016 |
| G. Gustavsson & Sønner Bilverksted AS | Other services | 2005 |
| G. Nilsen Holding AS | | 2025 |
| G. O. Johnsen AS | Wholesale & retail | 1961 |
| G. R. Fuglesang Shipping AS | Transport & logistics | 2005 |
| G.Bryn Holding AS | | 2025 |
| G.Cas 1 AS | | 2024 |
| G.I.G Collective Da | Information & communication | 2026 |
| G.Invest AS | | 2024 |
| G.M Invest AS | | 2024 |
| G.Ni Arkitektur AS | Professional & scientific | 2014 |
| G.R. Rudsar AS | Real estate | 2005 |
| G.S Invest AS | | 2025 |
| G11 Invest AS | Professional & scientific | 2016 |
| G15 Street-Food AS | Hospitality | 2018 |
| G18 Invest AS | | 2021 |
| G1812 Invest AS | Financial services | 1990 |
| G2 Brands AS | Professional & scientific | 2014 |
| G2 Digital AS | Professional & scientific | 2025 |
| G238 Holding AS | Administrative & support | 2022 |
| G25 Næring AS | Real estate | 2025 |
| G25 Parkering AS | Real estate | 2025 |
| G35 Properties AS | Real estate | 2024 |
| G4 Invest AS | | 2021 |
| G8 Nails AS | Health & social care | 2015 |
| G82 -Finans AS | Real estate | 2017 |
| G83.NO AS | Construction | 2019 |
| G8N Service AS | Construction | 2018 |
| G9 Holding AS | | 2021 |
| G90 Næring 1 AS | Real estate | 2025 |
| G90 Næring 2 AS | Real estate | 2025 |
| G90 Parkering AS | Real estate | 2025 |
| G90 Utvikling 1 AS | Real estate | 2025 |
| G90 Utvikling 2 AS | Real estate | 2025 |
| G99 Holding AS | Real estate | 2019 |
| Ga Bars AS | Hospitality | 2025 |
| Ga Bilben Holding AS | Financial services | 2015 |
| Ga Bygg Tjenester AS | Construction | 2016 |
| Ga Consult AS | Professional & scientific | 2024 |
| Ga Modefine S a | Administrative & support | 2003 |
| Ga Snekker Og Maler AS | Construction | 2022 |
| Ga Steimler Holding AS | | 2021 |
| Ga-Prosjekt AS | Real estate | 2020 |
| GAA65 AS | Hospitality | 2016 |
| Gaard Eiendom AS | Real estate | 2016 |
| Gaard Forbes AS | Real estate | 2022 |
| Gaard Holding AS | Hospitality | 2018 |
| Gaard Kapital AS | Real estate | 2022 |
| Gaard Og Grunn AS | Other services | 2021 |
| Gaard Virtual Kitchen AS | Hospitality | 2021 |
| Gaarde Industries AS | Financial services | 2005 |
| Gaardskompaniet AS | Real estate | 1998 |
| Gaasa AS | Hospitality | 2009 |
| Gaathaug Holding AS | | 2023 |
| Gab Bygg AS | Real estate | 2007 |
| Gab Gesellschaft Zur Aufbereitung Von Baustoffen MBH | Mining & quarrying | 2007 |
| Gaba Israel Norge Trade and Tourisme AS | Wholesale & retail | 1994 |
| Gabel & Kristensen Ans | | 1997 |
| Gabel Eiendom AS | Real estate | 2011 |
| Gabels Gate 16 AS | Real estate | 1912 |
| Gabels Gate 38 AS | Real estate | 2014 |
| Gabels Gate 9B AS | Real estate | 2021 |
| Gabels Invest AS | Financial services | 2005 |
| Gabels Mat & Vin AS | Hospitality | 2016 |
| Gabels Park AS | Health & social care | 2022 |
| Gabels Rådgivning AS | Professional & scientific | 2014 |
| Gabi AS | Real estate | 2005 |
| Gabler Triton AS | Professional & scientific | 1997 |
| Gabo AS | Real estate | 1998 |
| Gabonakken AS | | 2022 |
| Gabos Hud-, Fot- Og Massasjeterapi AS | Other services | 2016 |
| Gabriel Norway Nuf | Wholesale & retail | 1997 |
| Gabriel Scott Invest AS | Professional & scientific | 2021 |
| Gabrielle Leithaug AS | Arts & recreation | 2017 |
| Gabriellen AS | | 2019 |