| GH Verdi AS | | 2024 |
| Ghaderi Holding AS | | 2022 |
| Ghildal AS | Health & social care | 2025 |
| Gida AS | Financial services | 2013 |
| Gimle Budbil AS | Transport & logistics | 2024 |
| Gimle Sushi AS | Hospitality | 2023 |
| Gimlevegen Holding AS | Real estate | 2005 |
| GJ Hus AS | Real estate | 2025 |
| Gjerdrum Boligselskap AS | Real estate | 2022 |
| GJS - Glenn Jørgen Sandaker AS | Education | 2002 |
| Gjøkeredet AS | Information & communication | 1995 |
| Gjølstad AS | Health & social care | 2013 |
| Glacier Invest AS | | 2018 |
| Gladek Norge AS | Wholesale & retail | 2021 |
| Glasstek Avd Østfold AS | Construction | 2022 |
| Glassverket Bakeri AS | Hospitality | 2019 |
| Glitreøynir AS | | 2026 |
| Gllc Invest AS | Financial services | 2012 |
| Global Goodies AS | Hospitality | 2024 |
| Global Integration AS | Information & communication | 2025 |
| Global Investment Holding AS | Real estate | 2016 |
| Global Smak AS | Wholesale & retail | 2025 |
| Glomlia Utleie AS | Real estate | 2023 |
| Glomma Consult AS | Professional & scientific | 2022 |
| GMG Invest AS | Financial services | 2018 |
| GMT Consulting AS | Professional & scientific | 2024 |
| GN Holding AS | | 2019 |
| GN Living AS | Real estate | 1997 |
| Gneislit AS | Financial services | 2007 |
| Go Bua AS | Wholesale & retail | 2004 |
| Goal Investment AS | Real estate | 1997 |
| Gobolig AS | Real estate | 2018 |
| Godkontroll.No AS | Professional & scientific | 2014 |
| Golden Cars AS | Wholesale & retail | 2021 |
| Goldmine Holding AS | Wholesale & retail | 2024 |
| Gordejev Holding AS | | 2014 |
| Graham Film AS | Information & communication | 2019 |
| Granimax Norge AS | Wholesale & retail | 2023 |
| Granittveien Næring AS | Real estate | 2021 |
| Granli-Invest AS | Real estate | 2021 |
| Granum AS | Real estate | 2007 |
| Granum Holding II AS | Real estate | 2008 |
| Grav Litt AS | Construction | 2016 |
| Graving & Uteanlegg AS | Construction | 2018 |
| Green Hydrogen Bodø AS | Manufacturing | 2023 |
| Green Hydrogen Norway AS | Manufacturing | 2023 |
| Greengrass AS | Professional & scientific | 2026 |
| Greenport Services AS | Transport & logistics | 1999 |
| Greenside Invest AS | Real estate | 2022 |
| Greenstep Norge AS | Professional & scientific | 2022 |
| Grei Og God AS | Wholesale & retail | 2011 |
| Grenseløst SA | Arts & recreation | 2005 |
| Grete Askland AS | Professional & scientific | 2018 |
| Greva Skovdahl AS | Real estate | 2005 |
| Grindøy AS | Real estate | 2006 |
| Grinn Ba | Construction | 2003 |
| Gromholt AS | Financial services | 2005 |
| Grow Digital AS | Information & communication | 2020 |
| Grunnstein Da | Health & social care | 2000 |
| Gry Eriksen AS | Professional & scientific | 2025 |
| Grytdal Invest AS | | 2024 |
| Grønnere Miljø AS | Hospitality | 2014 |
| Grønnere Verden AS | Wholesale & retail | 2021 |
| GS Indus Nuf | Wholesale & retail | 2014 |
| Gta Norge AS | Administrative & support | 2019 |
| GTD Bygg AS | Construction | 2024 |
| Gubbeskogen Fus Barnehage AS | Education | 2018 |
| Gudrun H. Grindaker AS | Professional & scientific | 2018 |
| Gugguu AS | Manufacturing | 2023 |
| Gullsmed 1 AS | Wholesale & retail | 2005 |
| Gullsmed Johnsen AS | Wholesale & retail | 1998 |
| Gullåsen Restaurantdrift AS | Hospitality | 1998 |
| Gunthers Eftf AS | Construction | 2022 |
| Guttulsrød AS | Real estate | 1997 |
| Guttulsrød Eiendomsmegling AS | Real estate | 2014 |
| Gve 1 AS | Real estate | 2021 |
| Gym City AS | Arts & recreation | 2025 |
| Gågaten 257 Ans | Real estate | 2003 |
| H Kristiansen & Sønner AS | Transport & logistics | 1989 |
| H&H Investment Group AS | Real estate | 2015 |
| H&H Næringsbygg AS | Real estate | 2021 |
| H-Tec AS | Construction | 2020 |
| Haaland Takst AS | Professional & scientific | 2024 |
| Haarverket AS | Other services | 2017 |
| Hagtorn Utemiljø AS | Administrative & support | 2017 |
| Hairdesign AS | Other services | 2015 |
| Hairmania AS | Other services | 2015 |
| Hairstation Professional AS | Wholesale & retail | 2009 |
| Haldor M Og Aas Ruth Anne Skålnes Ans | Agriculture & fishing | 1995 |
| Halfhill Invest AS | Real estate | 2017 |
| Hall Inspirasjon AS | Wholesale & retail | 2018 |
| Hallo Fresh Food AS | Wholesale & retail | 2023 |
| Halløkka AS | Real estate | 1993 |
| Halløkka Holding AS | Real estate | 2005 |
| Halvorsen Transport Og Anlegg AS | Transport & logistics | 2007 |
| Hanand AS | | 2026 |
| Hanche AS | | 2020 |
| Handa AS | Information & communication | 2026 |
| Handelsbygg 16 AS | Real estate | 2022 |
| Hans E. Holme AS | Real estate | 2011 |