| Finne Holding AS | | 2016 |
| Finske Tømmerhus AS | Real estate | 2019 |
| Finske Tømmerhus Telemark AS | Real estate | 2019 |
| Fix Solutions AS | Construction | 2025 |
| Fixio AS | | 2025 |
| Fjellstø Bolig AS | Real estate | 2021 |
| Fjellstø Drift AS | Real estate | 2010 |
| Fjellstø Gruppen AS | Real estate | 2015 |
| Fjellstø Partner AS | Real estate | 2019 |
| Fjellvekst Holding AS | Real estate | 2012 |
| Fjellygata Utvikling AS | Real estate | 2023 |
| Fjordgløtt Trevare AS | Manufacturing | 2024 |
| Fjordns AS | Information & communication | 2026 |
| Fjordscooter AS | Administrative & support | 2025 |
| Fjære Holding AS | Real estate | 2017 |
| Flamingo Gruppen AS | Administrative & support | 2021 |
| Flashmedia AS | Information & communication | 2006 |
| Flatebakken Holding AS | | 2023 |
| Flex Multiservice AS | Administrative & support | 2026 |
| Flex Trim & Mosjon AS | Arts & recreation | 2013 |
| Flex Vallermyrene AS | Arts & recreation | 2023 |
| Flex-Holding AS | Arts & recreation | 2019 |
| Flogstad Invest AS | Financial services | 2016 |
| Floodegården AS | Real estate | 2020 |
| Floodmyrvegen 19 AS | Real estate | 2021 |
| Floodmyrvegen 22 AS | Real estate | 2026 |
| Floodmyrvegen 23 AS | Real estate | 1996 |
| Floodmyrvegen Eiendom AS | Real estate | 2022 |
| Floodmyrveien 40 AS | Real estate | 2022 |
| Flora Botanica AS | Wholesale & retail | 2021 |
| Flow Technology Holding AS | Professional & scientific | 2016 |
| Flowth AS | | 2026 |
| Fluff Brow AS | Wholesale & retail | 2020 |
| Flåtten Supermarked AS | Wholesale & retail | 1994 |
| Fnilsen AS | Real estate | 2019 |
| Folkets Røst AS | Information & communication | 2025 |
| Follaug Eiendom AS | Real estate | 2004 |
| Formium Design Ans | Professional & scientific | 2004 |
| Formo Invest AS | Transport & logistics | 2005 |
| Forsikringssenter Sør AS | Financial services | 2018 |
| Foss Elektro AS | Construction | 2003 |
| Fosse Klimaservice AS | Construction | 2023 |
| Fossøy AS | Arts & recreation | 2023 |
| Fotograf Danny Twang AS | Professional & scientific | 2016 |
| Fotoner AS | Professional & scientific | 2022 |
| Foyn Forvaltning AS | Real estate | 2018 |
| Fragmasense AS | Professional & scientific | 2003 |
| FRAMEWORKS1975 AS | Information & communication | 2024 |
| Framtre Entreprenør AS | Agriculture & fishing | 2020 |
| Framtre Industrier AS | Manufacturing | 2021 |
| Framtre Invest AS | Real estate | 1997 |
| Framtre Logistikk 1 AS | Transport & logistics | 1994 |
| Framtre Logistikk 2 AS | Transport & logistics | 2015 |
| Framtre Logistikk AS | Real estate | 2018 |
| Framtre SA | Wholesale & retail | 2005 |
| Franche Marine AS | Professional & scientific | 2005 |
| Frank Eriksen Holding AS | Administrative & support | 2018 |
| Fredbo Holding AS | Real estate | 2019 |
| Fredbo Invest AS | | 2011 |
| Fredbovegen Holding AS | Real estate | 2018 |
| Frednes Brygge AS | Real estate | 2002 |
| Frednes Consult AS | Professional & scientific | 2005 |
| Frednes Eiendom AS | Real estate | 2007 |
| Frednes III Utbygging AS | Real estate | 2021 |
| Frednes IV Utbygging AS | Real estate | 2023 |
| Frednesøya 11 AS | Real estate | 2007 |
| Fredriksen Bygg & Boligservice AS | Construction | 2001 |
| Freke Holding AS | | 2021 |
| Frena AS | | 2020 |
| Friar Venture AS | Financial services | 2023 |
| Frier AS | Administrative & support | 2023 |
| Friis Investments AS | Professional & scientific | 2010 |
| Friisebrygga Legesenter AS | Health & social care | 2012 |
| Frisak Holding AS | Real estate | 2010 |
| Fristad Invest AS | | 2014 |
| Frisørkjeden Tango Norge AS | Administrative & support | 1999 |
| Frito AS | Manufacturing | 1987 |
| Frivema Invest AS | Financial services | 2005 |
| FRK Beauty AS | Other services | 2017 |
| FRK. Flora AS | Wholesale & retail | 2010 |
| Frode Svarstad-Elverhøy AS | Wholesale & retail | 2019 |
| Fruktkongen AS | Wholesale & retail | 2016 |
| Fryd Regnskap AS | Professional & scientific | 2022 |
| Frøysgate 25 AS | Real estate | 2026 |
| FTJ Holding AS | | 2018 |
| Funnemark Eiendom AS | Real estate | 2005 |
| Furmanite | Manufacturing | 2011 |
| Future Lab AS | Professional & scientific | 2015 |
| Fysiosnorre AS | Health & social care | 2015 |
| G S Holding AS | Wholesale & retail | 2005 |
| G1 Holding AS | Real estate | 2016 |
| Ga Bilformidling AS | Wholesale & retail | 2017 |
| Galtung Kompetanseutvikling AS | Professional & scientific | 2014 |
| Game Eiendom AS | | 2021 |
| Game Forlag AS | Information & communication | 2018 |
| Gamle Urædd AS | Real estate | 2023 |
| Gap Consulting AS | Professional & scientific | 2014 |
| Gap Opp AS | Health & social care | 2011 |
| Gass Og Rør Eiendom AS | Real estate | 2022 |
| Gass Og Rørservice AS | Construction | 2015 |