| Feeding Wolves AS | Real estate | 2024 |
| Feel International AS | Construction | 2011 |
| Feeling Fine AS | Other services | 2016 |
| Feim AS | | 2025 |
| Fema AS | | 2026 |
| Ferkingstad Og Alsaker AS | Professional & scientific | 2000 |
| Ferrule Media AS | Information & communication | 2018 |
| Feøy Havgløtt AS | Real estate | 2015 |
| Fiks Ferdig Montert AS | Construction | 2022 |
| Filmrederiet AS | Information & communication | 2020 |
| Finthus.No AS | Wholesale & retail | 2016 |
| Fischer & Knutsen Eiendom AS | Real estate | 1994 |
| Five Scholars Norge Nuf | Information & communication | 2021 |
| Fjeldstad Konsulenttjenester AS | Professional & scientific | 2023 |
| Fjellbooking AS | Real estate | 2016 |
| Fjellco AS | | 2025 |
| Fjelldalen Eiendom AS | Real estate | 2025 |
| Fjellmyr Invest AS | Financial services | 2014 |
| Fjellstemmen Barnehage SA | Education | 1988 |
| Fjetland Takst AS | Construction | 2003 |
| Fjordstuene Eiendom AS | Real estate | 2023 |
| Fjordstuene Fosen Ans | Hospitality | 2023 |
| Fjordstuene Gjestegaard AS | Hospitality | 2007 |
| Fjordviking AS | Administrative & support | 2019 |
| FK Haugesund AS | Arts & recreation | 2021 |
| FKH Holding AS | Arts & recreation | 2009 |
| FL Eiendom AS | Real estate | 2021 |
| FL Investering AS | Wholesale & retail | 2021 |
| Flagship Media AS | Professional & scientific | 2026 |
| Flathauggata 54 AS | Real estate | 2020 |
| Flawax Ans | Professional & scientific | 2004 |
| Floater Services AS | Professional & scientific | 2008 |
| Flotmyr BKB2 AS | Real estate | 2021 |
| Flotmyr BS1 AS | Real estate | 2021 |
| Flotmyr BS2 AS | Real estate | 2021 |
| Flotmyr Eiendom AS | Real estate | 2005 |
| Flotmyr Helsehus AS | Health & social care | 2020 |
| Flotmyrgaarden Consulting AS | Professional & scientific | 2008 |
| Flotmyrgården Utbygging AS | Real estate | 2008 |
| Flow Ventures 1 AS | | 2022 |
| Fluenta AS | Manufacturing | 2007 |
| FLX Gruppen AS | | 2025 |
| FLX Media AS | Information & communication | 2022 |
| Flyplassveien AS | Real estate | 2008 |
| Flytten Kapital AS | | 2025 |
| Flåtech AS | Professional & scientific | 2021 |
| Fodit Import AS | Wholesale & retail | 2000 |
| Fodnebø Invest AS | Hospitality | 2005 |
| Fomu AS | Real estate | 2023 |
| Fomu Invest AS | Real estate | 2023 |
| Fomu Medical AS | Health & social care | 2023 |
| Fondshuset AS | Financial services | 2017 |
| Foretaksutvikling AS | Administrative & support | 1987 |
| Formbar Glassverksted AS | Manufacturing | 2016 |
| Former AS | Wholesale & retail | 1996 |
| Fortius Offshore Wind AS | | 2024 |
| Foss Future AS | Real estate | 2016 |
| Foto Erik AS | Wholesale & retail | 1998 |
| Fotomagi Da | Professional & scientific | 2004 |
| Fotvegen 2 AS | Real estate | 2005 |
| Frakkagjerdvegen 256 AS | Real estate | 2018 |
| Fraksinus AS | Professional & scientific | 2021 |
| Fraksinus Holding AS | | 2025 |
| Frank Lie Mur Og Flis AS | Construction | 2021 |
| Fremje AS | Professional & scientific | 2020 |
| Fremje Holding AS | Professional & scientific | 2021 |
| Fremje Invest AS | Real estate | 2023 |
| Fresh Eiendom AS | Real estate | 2016 |
| Fresk AS | Financial services | 2005 |
| From Beyond Creative AS | Information & communication | 2025 |
| Frøiland & Frøiland AS | Professional & scientific | 1997 |
| Frøland Mur Og Bygg AS | Wholesale & retail | 2015 |
| Frøyas Hjerte AS | Health & social care | 2024 |
| Frøyland Elektro AS | Construction | 1994 |
| Frøyland Holding AS | Construction | 2007 |
| FS Lager AS | Real estate | 2022 |
| Funfinitum AS | Administrative & support | 2023 |
| Furre AS | Health & social care | 2015 |
| Fus AS | Administrative & support | 2007 |
| Futura Bygg AS | Real estate | 2019 |
| FVF Holding AS | | 2018 |
| Fyfu Invest AS | | 2023 |
| Fysioterapeutene Haugesund AS | Health & social care | 2022 |
| Fysioterapi Senteret I Haugesund Ans | Health & social care | 1977 |
| Følje AS | Real estate | 1982 |
| Førde Legesenter AS | Real estate | 1997 |
| Føresvikvegen 2 AS | Real estate | 2023 |
| Føresvikvegen 40 AS | Real estate | 2023 |
| Førland Barnehage Eiendom AS | Education | 2007 |
| Førland Gård Og Sankeri Da | Agriculture & fishing | 2024 |
| Føys Holding AS | Financial services | 2023 |
| G Berg Holding AS | Real estate | 2007 |
| Ga Karlsen Holding AS | Manufacturing | 2019 |
| Galleri Hantho AS | Wholesale & retail | 2010 |
| Galleri Knapphuset Da | Wholesale & retail | 2010 |
| Game Ninja AS | Wholesale & retail | 2016 |
| Garanti Eiendomsmegling Haugesund AS | Real estate | 2020 |
| Gard Barnehage SA | Education | 1993 |
| Gard Fysioterapi Eiendom AS | Real estate | 2015 |
| Gard Kiosken AS | Wholesale & retail | 1997 |