| Eyvi Holding AS | Professional & scientific | 2022 |
| Ez Bygg AS | Construction | 2019 |
| F J L Holding AS | Real estate | 2007 |
| F13 Invest AS | | 2025 |
| F48 Invest AS | Real estate | 2015 |
| F7 Invest AS | | 2022 |
| Faa Invest AS | Real estate | 2011 |
| Face Fwrd AS | Wholesale & retail | 2020 |
| Faffene Holding AS | | 2021 |
| Fagersand Gyn AS | Health & social care | 2023 |
| Fagersand Helse AS | Health & social care | 2018 |
| Fagervik Holding AS | | 2021 |
| Fair Play Center AS | Arts & recreation | 1999 |
| Fair Play Games AS | Administrative & support | 1996 |
| Falckenbergsgate 7 SA | Real estate | 1955 |
| Fam.Johnsen AS | Wholesale & retail | 2024 |
| Fanny Lykke AS | Other services | 2025 |
| Fantasifabrikken AS | Information & communication | 1995 |
| Farge Og Flis AS | Construction | 2026 |
| Farmandstredet Klokker Og Smykker AS | Wholesale & retail | 2017 |
| Farmann Glass AS | Wholesale & retail | 2011 |
| Farmannsveien 12/14 AS | Real estate | 2019 |
| Farmannsveien 18 AS | Real estate | 2021 |
| Farmannsveien 18-22 Tønsberg AS | Real estate | 2003 |
| Farmannsveien 9 AS | Real estate | 1993 |
| Farnes Holding AS | Manufacturing | 2018 |
| Farnese AS | Manufacturing | 2014 |
| Fasting Eiendom AS | Real estate | 2012 |
| Faugli Holding AS | Wholesale & retail | 2016 |
| Favoritt AS | Construction | 2010 |
| Feelgood Helse & Livsmestring AS | Arts & recreation | 2023 |
| Fiber Recycling AS | Professional & scientific | 2025 |
| Field Development International AS | Professional & scientific | 2007 |
| Fight Hub AS | Wholesale & retail | 2026 |
| Fina AS | Manufacturing | 2019 |
| Final Touch AS | Professional & scientific | 2005 |
| Finetec Corp | Professional & scientific | 2007 |
| Finkom AS | Professional & scientific | 2024 |
| Finøk Henning Heimtun AS | Wholesale & retail | 2021 |
| Firesjue Design AS | Wholesale & retail | 2023 |
| First Hageservice AS | Administrative & support | 2020 |
| Fiskal Metering Support (FMS) AS | Professional & scientific | 2021 |
| Fiskesjefen AS | Wholesale & retail | 2024 |
| Fitnesspoint Jarlsø AS | Arts & recreation | 1989 |
| Fix Tønsberg AS | Wholesale & retail | 2020 |
| Fixe AS | Administrative & support | 2021 |
| Fjeld Gruppen AS | Real estate | 2022 |
| Fjordgaten 13 Eiendom AS | Real estate | 1985 |
| Fjordgaten 7 AS | Real estate | 2005 |
| Fjordgaten 9 AS | Real estate | 2014 |
| Fjordgaten Invest AS | Real estate | 1997 |
| Fjordgløtt Panorama AS | Real estate | 2007 |
| Fjordlys AS | Real estate | 2022 |
| Fjordstrand Eiendom AS | | 2024 |
| Flatout AS | Education | 2024 |
| Flatt Hav AS | Real estate | 2021 |
| Flove Norge AS | Professional & scientific | 2017 |
| Flow Helse AS | Other services | 2022 |
| Flowment AS | Transport & logistics | 2023 |
| Flybåten Husvik Brygge AS | Transport & logistics | 2014 |
| Flying Green AS | Professional & scientific | 2020 |
| Flyt Finans AS | Real estate | 1989 |
| Flyt Ledelse AS | Professional & scientific | 2014 |
| Flyt Ledelse Drift AS | Professional & scientific | 2026 |
| Focus Productions AS | Arts & recreation | 2012 |
| Fokserødveien 43 AS | Real estate | 2018 |
| Folden Mat AS | Manufacturing | 2025 |
| Foldenbanden AS | Hospitality | 2016 |
| Folkbo AS | Real estate | 2018 |
| Folksom AS | Real estate | 1992 |
| Folksom Bolig AS | Real estate | 2003 |
| Folksom Eiendom AS | Real estate | 2013 |
| Folksom Utvikling AS | Real estate | 2017 |
| Follan Holding AS | | 2023 |
| Fonnweb AS | Information & communication | 2018 |
| Fonterra AS | | 2026 |
| Foran DS AS | Construction | 2012 |
| Forbis AS | Financial services | 2005 |
| Foredragsholder AS | Professional & scientific | 2020 |
| Forfatterentreprenøren AS | Information & communication | 2021 |
| Formue Forum AS | Education | 2022 |
| Fosswinckels Gate 54 Og Professor Hansteens Gate 82 AS | Real estate | 2019 |
| Fotens Klinikk AS | Health & social care | 2017 |
| FOTKLINIKK1 Trude Grennes AS | Health & social care | 2018 |
| Fotostudio AS | Real estate | 2019 |
| Foxy Holding AS | Construction | 2019 |
| Foyn Eiendom AS | Real estate | 1997 |
| Foyn Holding AS | Real estate | 2014 |
| Foyn Tegnekontor AS | Professional & scientific | 2018 |
| Foyngården Drift AS | Hospitality | 2015 |
| Foynhaven AS | Administrative & support | 2015 |
| Foynkvartalet AS | Real estate | 2013 |
| Foynkvartalet Næring AS | Real estate | 2004 |
| Fraktbestilling AS | Transport & logistics | 2023 |
| Fram Digital AS | Information & communication | 2021 |
| Frama AS | Real estate | 2012 |
| Framover Holding AS | Real estate | 2024 |
| Fransa Retail Norway AS | Wholesale & retail | 1999 |
| Fraqture Holding AS | Professional & scientific | 2022 |
| Fratero AS | | 2023 |