| Fredrik Invest AS | Wholesale & retail | 2014 |
| Fredrik Kvaløy AS | Information & communication | 2025 |
| Fredrik Langes GT 19/21 Seksjon 2 AS | Real estate | 2014 |
| Fredrik Og Ann-Karin AS | | 2006 |
| Fredrik Pe AS | | 2020 |
| Fredrik Selmers Vei 4 AS | Real estate | 2015 |
| Fredrik Selmers Vei 6 AS | Real estate | 2019 |
| Fredrik Selmersvei 5 AS | Real estate | 2012 |
| Fredrik Skavlan AS | Arts & recreation | 1999 |
| Fredrik Solvang AS | Arts & recreation | 2025 |
| Fredrik Svedberg Holding AS | | 2023 |
| Fredrikfikser AS | Construction | 2022 |
| Fredrikke Fritidseiendom AS | Real estate | 2006 |
| Fredrikke Holding AS | Real estate | 2005 |
| Fredrikke Onsrud Holding AS | Real estate | 2017 |
| Fredriks Fabrikk AS | Financial services | 2016 |
| Fredriks Røkeri AS | Manufacturing | 2018 |
| Fredriks Røkeri Holding AS | Manufacturing | 2019 |
| Fredriksen Film AS | Information & communication | 2013 |
| Fredriksen Group AS | | 2020 |
| Fredriksen Levin AS | Financial services | 2017 |
| Fredrikstad Byinvest 2 AS | Real estate | 2018 |
| Fredrikstad Byinvest AS | Real estate | 2018 |
| Fredrikstad Kontorbygg AS | Real estate | 2017 |
| Fredrikstad Kontorbygg Holding AS | Financial services | 2017 |
| Fredrikstad VGS AS | Real estate | 2024 |
| Fredrikstad Videregående Ops AS | Real estate | 2025 |
| Fredriksten Studentbolig AS | Hospitality | 2019 |
| Freds Butikkdrift AS | Wholesale & retail | 2019 |
| Free Motion Hasle AS | Education | 2019 |
| Free Motion Holding AS | Professional & scientific | 2019 |
| Free Motion Majorstua AS | Education | 2019 |
| Free Speech Productions AS | Administrative & support | 2020 |
| Free Tech AS | | 2020 |
| Freebit AS | Information & communication | 2021 |
| Freebit Holding AS | Administrative & support | 1998 |
| Freedom Consulting AS | Professional & scientific | 2000 |
| Freedom From Fear AS | Information & communication | 1995 |
| Freek AS | | 2020 |
| Freeman Bygge- Og Elektrofirma AS | Construction | 2024 |
| Freeman Shipping & Offshore AS | Financial services | 2005 |
| Freemountain Norway AS | Professional & scientific | 2014 |
| Freeseating AS | Information & communication | 2021 |
| Freeski Holding AS | | 2024 |
| Freestyle Adventure AS | Administrative & support | 1996 |
| Freestyle Consulting AS | Professional & scientific | 2024 |
| Freethemedia AS | Professional & scientific | 2025 |
| Freeze Line AS | Wholesale & retail | 2019 |
| Freg AS | Real estate | 1996 |
| Fregn AS | Education | 2023 |
| Freia Invest AS | | 2020 |
| Freidig Holding AS | Professional & scientific | 1990 |
| Freidigveien 3 AS | Real estate | 2015 |
| Freight AS | Information & communication | 2023 |
| Freightman Norway AS | Transport & logistics | 1995 |
| Freija AS | Professional & scientific | 2022 |
| Freiste AS | Information & communication | 2025 |
| Frej AS | | 2026 |
| Frekk AS | Wholesale & retail | 2024 |
| Frekk Forlag AS | Information & communication | 2012 |
| Freklo AS | Real estate | 2017 |
| Frekva Invest AS | Real estate | 2008 |
| Frekvens AS | Information & communication | 2018 |
| Frekvens Digital AS | Information & communication | 2026 |
| Frelina Invest AS | | 2005 |
| Frelor AS | | 2022 |
| Frelsesarmeens Eiendommer AS | Real estate | 1899 |
| Frelsesarmeens Næringseiendom AS | Real estate | 1959 |
| Frelsesarmeens Offisersskole AS | Education | 2019 |
| Frem AS | Real estate | 2014 |
| Frem Bygg AS | Real estate | 2015 |
| Frem Capital AS | | 2020 |
| Frem Drift AS | Administrative & support | 2018 |
| Frem Eiendom AS | Real estate | 2016 |
| Frem Gruppen AS | Real estate | 2014 |
| Frem Kapital AS | | 2025 |
| Frem Real AS | Real estate | 2019 |
| Frem Revisjon AS | Professional & scientific | 1998 |
| Frem Skog AS | Agriculture & fishing | 2019 |
| Frem Utleie AS | Hospitality | 2016 |
| Frem Utvikling AS | Real estate | 2014 |
| Fremaca AS | Real estate | 2005 |
| Fremar AS | Financial services | 2005 |
| Fremar Industri Invest AS | Real estate | 2005 |
| Frembo AS | Real estate | 2025 |
| Frembringer AS | Wholesale & retail | 2026 |
| Fremby AS | Information & communication | 2017 |
| Fremdrift Bolteløkka AS | Real estate | 2022 |
| Fremdrift Fuglesangåsen AS | Real estate | 2022 |
| Fremdrift Holding AS | Real estate | 2021 |
| Fremgang AS | Professional & scientific | 2025 |
| Fremja AS | Health & social care | 2014 |
| Fremja Eiendom AS | Real estate | 2016 |
| Fremmede Fugler Forlag Ans | Professional & scientific | 2026 |
| Fremming Invest AS | Financial services | 2005 |
| Fremmot AS | Professional & scientific | 2023 |
| Fremr AS | Real estate | 2001 |
| Fremra AS | Information & communication | 2025 |
| Fremragende Lederskap AS | Professional & scientific | 2019 |
| Fremspir AS | Professional & scientific | 2019 |