| Felix Farmasi AS | Wholesale & retail | 2001 |
| Felix Holding AS | Wholesale & retail | 2005 |
| Fell Connect AS | Professional & scientific | 2020 |
| Fell Group AS | Wholesale & retail | 2021 |
| Fell Logistics AS | Wholesale & retail | 2012 |
| Fell Marine AS | Professional & scientific | 2013 |
| Fell Technology AS | Professional & scientific | 2013 |
| Fellestrust AS | Information & communication | 2019 |
| Fend AS | Information & communication | 2023 |
| Fenero AS | Professional & scientific | 2013 |
| Fermento AS | Information & communication | 2026 |
| Ferrometall AS | Wholesale & retail | 2010 |
| Fevang AS | Real estate | 2005 |
| Fevang Eiendom Ans | Real estate | 1988 |
| Fevang Lørenskog AS | Real estate | 2018 |
| Fevang NRG AS | Professional & scientific | 2023 |
| Fevang Rådhusgata AS | Real estate | 2011 |
| FG Service AS | Administrative & support | 2023 |
| Fgr.Land AS | | 2026 |
| FH Auto AS | Wholesale & retail | 2021 |
| Fibertech Holding AS | Real estate | 2011 |
| Fica AS | Real estate | 2005 |
| Fidnor AS | Wholesale & retail | 2006 |
| Fierce Fitness AS | Health & social care | 2022 |
| Filtbygg AS | Real estate | 2019 |
| FIN2018 AS | | 2018 |
| Final Outlines AS | Professional & scientific | 2016 |
| Finans Og Bolig 2 AS | Real estate | 2023 |
| Finansforvaltning Eiendom AS | Real estate | 1998 |
| Finansgården Drammen AS | Real estate | 2005 |
| Findal & Krogh AS | Wholesale & retail | 1994 |
| Finn Tek AS | Wholesale & retail | 1995 |
| Finnerud Holding AS | Financial services | 2015 |
| Finthus AS | Real estate | 2025 |
| Fire Invest AS | Wholesale & retail | 2019 |
| Firmaturogevent AS | Administrative & support | 2013 |
| First Autoco AS | Other services | 2016 |
| First Bedriftsmegling AS | Real estate | 2012 |
| First Mile AS | Wholesale & retail | 2019 |
| First Risk Capital AS | Real estate | 2008 |
| Firstagenda AS | Information & communication | 2024 |
| Fishwell Technology AS | Information & communication | 2019 |
| Fiskern AS | Wholesale & retail | 2015 |
| Fiskexpressen AS | Wholesale & retail | 2020 |
| Fiskumparken A1.3 AS | Real estate | 2020 |
| Fiskumparken A2.1 AS | Real estate | 2020 |
| Fiskumparken A2.2 AS | Real estate | 2023 |
| Fiskumparken A2.3 AS | Real estate | 2023 |
| Fiskumparken A3.1 AS | Real estate | 2020 |
| Fiskumparken A3.2 AS | Real estate | 2020 |
| Fiskumparken C1-2 AS | Real estate | 2025 |
| Fiskumparken C1-3 AS | Real estate | 2025 |
| Fiskumparken C1-4 AS | Real estate | 2025 |
| Fiskumparken C1-5 AS | Real estate | 2025 |
| Fiskumparken C1-6 AS | Real estate | 2025 |
| Fiskumparken C1-7 AS | Real estate | 2025 |
| Fiskumparken C2 AS | Real estate | 2020 |
| Fiskumparken C3 AS | Real estate | 2020 |
| Fiskumparken C4 AS | Real estate | 2020 |
| Fittings of Norway AS | Wholesale & retail | 2011 |
| Fixmob AS | Other services | 2021 |
| Fjeld Edutainment AS | Professional & scientific | 2011 |
| Fjell Legesenter AS | Health & social care | 2005 |
| Fjordbyen Infrastruktur AS | Construction | 2022 |
| Fjordimex AS | Wholesale & retail | 2026 |
| Fjære AS | Administrative & support | 1971 |
| FK Investering AS | | 2024 |
| FKG Invest AS | | 2018 |
| Fleetwood Andy AS | Professional & scientific | 2023 |
| Flex Mobility AS | Professional & scientific | 2023 |
| Flex Renhold Oslo AS | Transport & logistics | 2020 |
| Flexible Building System Norway AS | Wholesale & retail | 2018 |
| Flexible Building Systems International AS | Real estate | 2021 |
| Flexima AS | | 2022 |
| Flexiprint AS | Manufacturing | 2016 |
| Floate Drammen AS | Other services | 2021 |
| Flow and Cleaning Technology AS | Professional & scientific | 2016 |
| Flow Ventures AS | | 2022 |
| Fluently AS | Information & communication | 2025 |
| Fluor Eiendom AS | Real estate | 2025 |
| Flymestring AS | Education | 2026 |
| FM Holding AS | Real estate | 2006 |
| Folkestadveien Utvikling AS | Real estate | 2026 |
| Folkets Hus Drammen SA | Real estate | 1976 |
| Folmo AS | Health & social care | 2021 |
| Fonn Capital AS | Financial services | 2020 |
| Fonzo's Tacos AS | Hospitality | 2026 |
| For Ordens Skyld AS | Hospitality | 2024 |
| Forbruker Gruppen Invest Da | Administrative & support | 2001 |
| Forfatter Invest AS | | 2023 |
| Forfatterskolen AS | Education | 2014 |
| Forhandlerforeningen for Dekk Og Felger I Norge AS | Other services | 2017 |
| Fori Kapital AS | Wholesale & retail | 2010 |
| Fornebu Entreprenør AS | Construction | 2023 |
| Fornebu-Entreprenør AS | Construction | 2024 |
| Forretningspartner Drammen AS | Professional & scientific | 2017 |
| Forse Konsult AS | Professional & scientific | 2010 |
| Forsikringsformidlerskolen AS | Education | 2022 |
| Foss AS | Professional & scientific | 2012 |
| Foss Development Nuf | Professional & scientific | 2016 |