| Fjordmind AS | Information & communication | 2026 |
| Fjordn Invest AS | Financial services | 2012 |
| Fjordnes Holding AS | Information & communication | 2020 |
| Fjordquest Adventure AS | Administrative & support | 2024 |
| Fjordreise AS | Transport & logistics | 2022 |
| Fjords of Norway AS | | 2021 |
| Fjordskole AS | Education | 2021 |
| Fjordskue AS | | 2019 |
| Fjordspenn AS | | 2026 |
| Fjordstone Holding AS | | 2025 |
| Fjordsyn AS | Professional & scientific | 2005 |
| Fjordsystems AS | Information & communication | 2026 |
| Fjordtech Installation AS | Administrative & support | 2025 |
| Fjordutsikt AS | Real estate | 2019 |
| Fjordveien Eiendom AS | Real estate | 2008 |
| Fjordveien Invest AS | Real estate | 2020 |
| Fjordy AS | | 2020 |
| Fjorgyn AS | Professional & scientific | 2012 |
| Fjorten Trettifem AS | Professional & scientific | 2021 |
| Fjoryn AS | Professional & scientific | 2026 |
| Fjoseberg AS | Financial services | 2014 |
| Fjotland Holding AS | | 2020 |
| Fjoven AS | Information & communication | 2019 |
| FJT Holding AS | Real estate | 2015 |
| Fjær Konfekt AS | Wholesale & retail | 2023 |
| Fjære Invest AS | Financial services | 2016 |
| Fjærland Kraft AS | Energy | 2015 |
| Fjærvik Klinikken AS | Health & social care | 2023 |
| Fjærvoll Invest AS | | 2025 |
| Fjøren Fysioterapi AS | Health & social care | 2026 |
| Fjøren Invest AS | | 2026 |
| Fjørevegen 20 AS | Real estate | 2018 |
| Fjøyro Holding AS | Real estate | 2008 |
| FK Investment AS | | 2023 |
| FK Mobility AS | Professional & scientific | 2026 |
| FK34 II AS | Real estate | 2020 |
| FKB Invest AS | | 2021 |
| FKH Eiendom AS | Real estate | 2025 |
| FKH Invest AS | | 2021 |
| Fkkg AS | Financial services | 2008 |
| Fkom Solutions AS | Professional & scientific | 2020 |
| FKP Scorpio Norge AS | Arts & recreation | 2017 |
| FKS Invest AS | Real estate | 2023 |
| FKX Invest AS | Real estate | 2021 |
| FL & Fam AS | | 2024 |
| FL Investco AS | | 2021 |
| FL Prosjekt AS | Professional & scientific | 2005 |
| Fla AS | | 2025 |
| FLA40A AS | Real estate | 2020 |
| Flaaten Fox Capital AS | Financial services | 2020 |
| Flaaten Fox Holding AS | | 2022 |
| Flaatenbjørk Kompani AS | Arts & recreation | 2015 |
| Flabbergaster AS | | 2024 |
| Flachs Aps | Information & communication | 1996 |
| Fladby AS | Manufacturing | 2000 |
| Fladseth Invest AS | Arts & recreation | 2022 |
| Flaen Holding AS | | 2020 |
| Flaenveien Consulting AS | Professional & scientific | 2005 |
| Flage Interiør AS | Wholesale & retail | 2003 |
| Flagship AS | | 2023 |
| Flagstad Eiendom AS | Real estate | 2015 |
| Flairmonde AS | Professional & scientific | 2026 |
| Flaks Tech AS | Information & communication | 2025 |
| Flaksball AS | Professional & scientific | 2018 |
| Flambert AS | Information & communication | 2015 |
| Flamboyance Limited Nuf | Information & communication | 2015 |
| Flamenco Pizza Og Restaurant AS | Hospitality | 2025 |
| Flamingo Solutions AS | Information & communication | 2017 |
| Flamme Burger Catering Og Event AS. | Hospitality | 2025 |
| Flamme Burger Frogner AS | Hospitality | 2022 |
| Flamme Burger Grunerløkka AS | Hospitality | 2020 |
| Flamme Forlag AS | Information & communication | 2015 |
| Flammekaster AS | Information & communication | 2014 |
| Flammier AS | Professional & scientific | 2017 |
| Flander Elektro AS | Construction | 2011 |
| Flanders Invest AS | | 2020 |
| Flanders Investment & Trade | Professional & scientific | 1997 |
| Flaneur AS | | 2024 |
| Flang Holding AS | | 2026 |
| Flanx Holding AS | | 2021 |
| Flaps AS | Financial services | 2008 |
| Flare Communications AS | Information & communication | 2015 |
| Flarom Management AS | Transport & logistics | 1979 |
| Flaskebekk Eiendom AS | Real estate | 2016 |
| Flaskebekk Holding AS | Real estate | 2020 |
| Flaskehals AS | | 2022 |
| Flaskehalsen AS | | 2021 |
| Flaskeladden AS | | 2020 |
| Flaskepost AS | Education | 2019 |
| Flasnes AS | Financial services | 2018 |
| Flatcat Holding AS | | 2021 |
| Flatebyvegen 3 AS | Real estate | 2017 |
| Flatebyveien 7-9 AS | Real estate | 2023 |
| Flaten Tannklinikk AS | Health & social care | 2016 |
| Flatfjell AS | | 2024 |
| Flatla Holding AS | Professional & scientific | 2005 |
| Flatla Management AS | | 2023 |
| Flatlie Holding AS | | 2021 |
| Flattum Accounting, Consulting and Tax Services AS | | 2013 |
| Flatåsen Vann- Og Avløpslag Drift SA | Water & waste | 2019 |