| Fatherhood AS | Information & communication | 2012 |
| Faust Invest AS | | 2025 |
| FB2 Invest AS | Financial services | 2014 |
| Felt Rådgivning Og Holding AS | Professional & scientific | 2006 |
| Feltstykket Invest AS | | 2023 |
| Fifth Generation AS | Real estate | 2020 |
| Fikan 3 AS | | 2025 |
| Fiksern AS | Arts & recreation | 1988 |
| Filmparken AS | Real estate | 1932 |
| Fineline AS | Information & communication | 2015 |
| Fjellopplevelser AS | Real estate | 2009 |
| Flaufjell AS | | 2024 |
| Fleischco AS | | 2019 |
| Flisa Eiendom AS | Real estate | 1988 |
| Flores & Co Renhold AS | Administrative & support | 2009 |
| Folkestad Eiendomsutvikling AS | Real estate | 2006 |
| Folkhem AS | Real estate | 2026 |
| Formafutura AS | Wholesale & retail | 2017 |
| Formosa AS | Wholesale & retail | 2009 |
| Fosli Rådgivning AS | Professional & scientific | 2017 |
| Foto Film AS | Professional & scientific | 1960 |
| Fotronic AS | Professional & scientific | 1991 |
| Fotterapeut Ann-Charlotte Berglund AS | Health & social care | 2024 |
| Fougner Holding & Invest AS | Construction | 2022 |
| Fra Mauro AS | | 2023 |
| Framnes Invest AS | Real estate | 2005 |
| Franz Messel-Jenssen Ltd Nuf | Professional & scientific | 2009 |
| Fredriksen Investment AS | | 2020 |
| Fsml AS | Wholesale & retail | 2022 |
| Furulia 16 AS | Financial services | 2016 |
| Furuto AS | | 2019 |
| Furuvik AS | Real estate | 1979 |
| Future Ventures AS | | 2025 |
| Færevaag Holding AS | | 2022 |
| G&T Capital AS | Information & communication | 2023 |
| G-Capital AS | | 2022 |
| G20 Invest AS | | 2022 |
| G5 Eiendom AS | Real estate | 2018 |
| Gama AS | | 2019 |
| Ganbatte AS | | 2018 |
| Gand Holding AS | | 2025 |
| Gapas Invest AS | | 2014 |
| Gbhj AS | Professional & scientific | 2022 |
| GBK Invest AS | | 2014 |
| Gec AS | Professional & scientific | 2024 |
| Geft Holding AS | Financial services | 2005 |
| Generals Invest AS | Real estate | 2020 |
| Gil-Invest AS | Professional & scientific | 1984 |
| Gilbert A/S | Manufacturing | 1987 |
| Gineline Holding AS | Financial services | 2018 |
| Gjermesøya Sjøhus AS | Real estate | 2021 |
| GL Services AS | Professional & scientific | 2016 |
| Glis AS | Arts & recreation | 2007 |
| GM Group AS | Construction | 2021 |
| Godt AS | Professional & scientific | 2022 |
| Godt Eiendomsprosjekt AS | Professional & scientific | 2022 |
| Goodlife AS | Financial services | 2017 |
| Goose Capital AS | | 2026 |
| Goto Capital AS | Wholesale & retail | 2025 |
| Gottsunda Invest AS | Real estate | 2017 |
| Goxplore Norway AS | Administrative & support | 2024 |
| GP Capital Partners AS | | 2025 |
| Gratius AS | Financial services | 2012 |
| GRAVER1 AS | Construction | 2013 |
| Gravfoto AS | Other services | 2021 |
| Gravlegater AS | Administrative & support | 2020 |
| Gravstellerne AS | Administrative & support | 2015 |
| Gravstellerne Distrikt AS | Other services | 2014 |
| Green Iglo AS | Professional & scientific | 2012 |
| Greentrade International AS | Wholesale & retail | 1991 |
| Grete AS | Financial services | 2008 |
| Grimsholmen AS | Real estate | 2025 |
| Gråssvoll Ans | Real estate | 2002 |
| GT Stray AS | Real estate | 2005 |
| Gudbrandsdal Laft AS | Real estate | 2021 |
| Guli AS | Transport & logistics | 2020 |
| Gullpastillen Holding AS | Information & communication | 2024 |
| Gunnar Kural Rokseth Og Co Ans | | 1989 |
| Gusshaugen AS | Professional & scientific | 2014 |
| Guzmar Technology Da | Wholesale & retail | 2018 |
| GVJ Invest AS | Real estate | 2009 |
| GW Holding AS | Real estate | 2017 |
| Gålåstrand Invest AS | | 2019 |
| H. Kavli & Co AS | | 2024 |
| Haap AS | Real estate | 2012 |
| Haereid AS | | 2015 |
| Hai Invest AS | Real estate | 1999 |
| Hakris Invest AS | Financial services | 2005 |
| Halaas Berntsen Holding AS | | 2026 |
| Handybygg AS | Construction | 2023 |
| Hanegal Invest AS | | 2018 |
| Hankø Holding AS | Real estate | 2005 |
| Hannek 1 AS | | 2021 |
| Hannek 2 AS | Education | 2021 |
| Hannek 4 AS | Real estate | 2020 |
| Hans Aksjeselskap | | 2026 |
| Hans Martin Myhre AS | Information & communication | 2016 |
| HAR2 Invest AS | | 2020 |
| Hardanger in West AS | | 2025 |
| Hartz Productions AS | Information & communication | 2025 |