| Grunderverk AS | | 2019 |
| Grundig Renhold AS | Administrative & support | 2002 |
| Grunnmurede AS | Professional & scientific | 2006 |
| Grynet Invest AS | | 2020 |
| Grøde Grønt AS | Agriculture & fishing | 2008 |
| Grønn Glede AS | Transport & logistics | 2025 |
| Grønnestad Holding AS | | 2023 |
| Grønnestad Hårdesign Olavskleivå AS | Other services | 1999 |
| Grønnestad Hårklinikk & Frisør AS | Other services | 2000 |
| Grønnevik Invest AS | Wholesale & retail | 2021 |
| Grøsfjeld Advokatfirma AS | Professional & scientific | 2017 |
| Grøsfjeld Invest AS | Professional & scientific | 2017 |
| Grøsser AS | Professional & scientific | 2018 |
| Grøtting Holding AS | Real estate | 2014 |
| GS Drift AS | Wholesale & retail | 2012 |
| GS Nyco AS | | 2023 |
| Gs-Holding AS | | 2014 |
| GSF Holding AS | | 2019 |
| GSG Invest AS | Real estate | 2015 |
| Gso Invest AS | | 2025 |
| GT Green AS | | 2021 |
| Gta Ventures AS | Financial services | 2024 |
| Gtai AS | Information & communication | 2025 |
| GTB Ventures AS | | 2025 |
| Gtech AS | Professional & scientific | 2009 |
| GTS Auto Repair AS | Other services | 2026 |
| Guatilla AS | Manufacturing | 2026 |
| Gudbjørg Simonsen AS | Professional & scientific | 2022 |
| Gudmestad Invest AS | Education | 2024 |
| Gudmundsen AS | | 2019 |
| Guest Drilling Consultants AS | Professional & scientific | 2014 |
| Guid AS | | 2014 |
| Guidecompaniet AS | Administrative & support | 1999 |
| Gulaksveien Utbygging AS | Real estate | 2023 |
| Gulbrand Gråstein Invest AS | | 2023 |
| Gulfstream Bidco AS | Information & communication | 2023 |
| Gulfstream Holdco AS | Information & communication | 2023 |
| Gulfstream Midco AS | Information & communication | 2023 |
| Gullregninvest AS | Administrative & support | 2012 |
| Gullsmed Bernhard Hansen AS | Wholesale & retail | 1979 |
| Gullsmed Christensen Tasta AS | Manufacturing | 2012 |
| Gullveig AS | | 2023 |
| Gulvmax AS | Wholesale & retail | 1998 |
| Gulvsliperen AS | Construction | 2019 |
| Gulvsliperen Stavanger AS | Construction | 2025 |
| Gundersen Solutions AS | Construction | 2023 |
| Gunhild AS | Real estate | 2005 |
| Gunn Claire Holding AS | | 2007 |
| Guttavibez AS | Arts & recreation | 2024 |
| GVH AS | Real estate | 2005 |
| Gyda Holding AS | Professional & scientific | 2005 |
| Gyldenlakk AS | | 2017 |
| Gym Supply AS | Wholesale & retail | 2013 |
| Gymtech AS | Wholesale & retail | 2024 |
| Gymtech Home AS | Wholesale & retail | 2026 |
| Gynekolog Bærheim AS | Health & social care | 2021 |
| Gynekolog GG Dale AS | Health & social care | 2024 |
| Gynekolog Johanne H Toft AS | Health & social care | 2025 |
| Gynekolog Praksis AS | Health & social care | 2024 |
| Gysland Eiendom AS | Real estate | 1977 |
| Gunnarshaug Eiendomsselskap A/S | Real estate | 1982 |
| Gådjå Etiopisk Restaurant AS | Hospitality | 2014 |
| H & M Malerservice AS | Construction | 2019 |
| H & T Langva AS | Professional & scientific | 1927 |
| H E D Invest AS | Wholesale & retail | 1989 |
| H Hauge Eiendom AS | Real estate | 1998 |
| H K Albretsen AS | Professional & scientific | 2021 |
| H T Bygg AS | Real estate | 1976 |
| H&G Eiendom AS | Real estate | 2016 |
| H. Dykesteen Eiendom AS | Professional & scientific | 2013 |
| H. Helgø Invest AS | | 2019 |
| H. Holding AS | | 2016 |
| H. Lærdal Holding AS | Financial services | 2017 |
| H. Øgreid & Sønner AS | Professional & scientific | 2014 |
| H.K Holding AS | | 2025 |
| H/S Invest AS | Financial services | 2011 |
| H100 Holding AS | Real estate | 2025 |
| H39 Eiendom AS | Real estate | 2020 |
| Haaberg Holding AS | | 2024 |
| Haak Atira AS | | 2025 |
| Haak Royan AS | | 2025 |
| Haakon Vii's Gate 9 Utleie AS | Real estate | 2015 |
| Haakon Vii`S Gate 9 AS | Real estate | 2001 |
| Haakonsen Holding AS | | 2025 |
| Haalandlydproduksjoner AS | Information & communication | 2026 |
| Haarr Takst AS | Real estate | 2022 |
| Haastein AS | Real estate | 2006 |
| Haavik Consulting AS | Professional & scientific | 2011 |
| Habi - Viste Hotell AS | Real estate | 2005 |
| Habi AS | Construction | 1993 |
| Habi Breibakken 12 AS | Real estate | 2016 |
| Habi Fabrikkveien 3 AS | Real estate | 2005 |
| Habi Fabrikkveien 9 AS | Real estate | 1997 |
| Habi Holding AS | Real estate | 2021 |
| Habi Steinkargata 20 AS | Real estate | 2008 |
| Habi Sølvberggården AS | Real estate | 1974 |
| Habir AS | | 2005 |
| Habita AS | Hospitality | 2020 |
| Hadle Selsås Holding AS | Financial services | 2016 |
| Haferkamp & Partnere AS | Real estate | 2016 |