| Feriehusmiddelhavet AS | | 2013 |
| Fiksemann AS | Construction | 2020 |
| Finn Carlsen Turistbusser AS | Administrative & support | 1990 |
| Finora AS | Professional & scientific | 2022 |
| Finstad Veitransport AS | Transport & logistics | 2020 |
| Finstadgruppen AS | Real estate | 2007 |
| Fire Vegger AS | Construction | 2010 |
| Fireqt AS | | 2015 |
| Firesafe AS | Construction | 1990 |
| Firesafe Group AS | Construction | 2022 |
| Firkant AS | Wholesale & retail | 2017 |
| Firm Holding AS | Hospitality | 2022 |
| Fitpartner AS | Other services | 2013 |
| Fjellhamar Bygg AS | Construction | 2012 |
| Fjellhamar Byggservice AS | Construction | 2020 |
| Fjellhamar Flislegger AS | Construction | 2024 |
| Fjellhammerveien 3 AS | Real estate | 2000 |
| Fjellheimhytta AS | Construction | 2020 |
| Fjellheimhytta Bygg AS | Construction | 2022 |
| Fjellkonsern AS | | 2018 |
| Fjellveien 19 Utvikling AS | Real estate | 2022 |
| FK Services AS | Administrative & support | 2019 |
| Fleksibel Innovasjons & Solutions AS | Wholesale & retail | 2023 |
| Fleur Agency AS | Professional & scientific | 2025 |
| Flexi Systue AS | Other services | 2016 |
| Flexirom AS | Real estate | 2025 |
| Floorman AS | Wholesale & retail | 2018 |
| Florell AS | Wholesale & retail | 2025 |
| Florys Parfyme AS | Wholesale & retail | 2026 |
| Flotte Greier AS | Health & social care | 2021 |
| Flow Holding AS | Professional & scientific | 2012 |
| FMK Group AS | | 2026 |
| Fmkn Holding AS | Construction | 2012 |
| FNP Område AS | Real estate | 2019 |
| FNP Tomt 1 AS | Real estate | 2019 |
| FNP Tomt 2 AS | Real estate | 2019 |
| FNP Tomt 3 AS | Real estate | 2019 |
| FNP Tomt 6 AS | Real estate | 2024 |
| FNP Tomt 7 AS | Real estate | 2024 |
| Foa Investments AS | | 2014 |
| Form Og Verk AS | Professional & scientific | 2026 |
| Formula Auto AS | Wholesale & retail | 2024 |
| Forstaden Tyrihans Boligutvikling AS | Construction | 2021 |
| Fosskok SA | Administrative & support | 2025 |
| Fotballspesialisten Da | Administrative & support | 2005 |
| Foxy Invest AS | Financial services | 2013 |
| Fram Auto AS | Wholesale & retail | 2022 |
| Framtid Media AS | Professional & scientific | 2025 |
| Framtid Tech AS | Information & communication | 2026 |
| Fredbo AS | Hospitality | 2022 |
| Frem Romerike AS | Professional & scientific | 2026 |
| Fremad HV AS | | 2025 |
| Fremgang Fysioterapi AS | Health & social care | 2025 |
| French Tacos Norge AS | Hospitality | 2023 |
| Friske Dyr Lørenskog AS | Professional & scientific | 2024 |
| Frognerveien 44 AS | Real estate | 2020 |
| Frui Vita Invest AS | | 2025 |
| FS Team Bygg Og Eiendom AS | Real estate | 2022 |
| FS Team Investments AS | Transport & logistics | 2018 |
| FS Team Services AS | Administrative & support | 2018 |
| FS Team Transport AS | Transport & logistics | 2018 |
| Fullout AS | Wholesale & retail | 2024 |
| Funko AS | Wholesale & retail | 2017 |
| Furuveien Invest AS | | 2015 |
| Fus I Alt AS | Arts & recreation | 2020 |
| Future Funding AS | Professional & scientific | 2020 |
| Future Generation Fund AS | Real estate | 2023 |
| Fyro Bygg AS | Construction | 2021 |
| Fysionora AS | Health & social care | 2021 |
| Fåland Håndverk AS | Construction | 1976 |
| G Smith AS | Professional & scientific | 2022 |
| G Transport Service AS | Transport & logistics | 2025 |
| G.B. Myhre Holding AS | Wholesale & retail | 2005 |
| Gadfly AS | Real estate | 2016 |
| Gaf Invest AS | Real estate | 2021 |
| Gamlestølen Front AS | Real estate | 2021 |
| Gardermoen Nord Eiendomsutvikling AS | Real estate | 2022 |
| Gasior Malhus AS | Construction | 2025 |
| Gaskraft AS | Wholesale & retail | 2006 |
| Gatech Norge AS | Wholesale & retail | 2025 |
| Geberit AS | Wholesale & retail | 2004 |
| Gese Holding AS | Financial services | 2023 |
| Gfo Invest AS | | 2022 |
| Gill Triaden AS | Wholesale & retail | 2018 |
| Gimre Thermo AS | Transport & logistics | 2018 |
| Gisle Heiberg Ringen AS | Health & social care | 2017 |
| Glede I Bevegelse AS | Arts & recreation | 2012 |
| Global Turf Systems AS | Wholesale & retail | 2014 |
| Globus Frisør AS | Other services | 2018 |
| Glynitveien 9 AS | Real estate | 2008 |
| GM Utleie AS | Construction | 2018 |
| GMM Holding AS | Wholesale & retail | 2020 |
| Golden Node AS | Information & communication | 2023 |
| Grace Budbil Services Limited Nuf | Transport & logistics | 2022 |
| Grafisk Kompani AS | Wholesale & retail | 2012 |
| Grand Solutions AS | Construction | 2024 |
| Grav Maskin AS | Construction | 2017 |
| Gravere AS | Construction | 2018 |
| Green Day AS | Real estate | 2015 |
| Grey Cell AS | Professional & scientific | 2013 |