| E.L. Invest AS | | 2025 |
| E9 Consulting AS | Professional & scientific | 2023 |
| Eagle 123 AS | Real estate | 2006 |
| Eah Investering AS | | 2025 |
| Eah Kapital AS | Financial services | 2016 |
| Eg Trading AS | Professional & scientific | 2013 |
| Egedahl AS | | 2021 |
| Eh Consulting AS | Professional & scientific | 2007 |
| Ehkb Invest AS | Real estate | 2005 |
| Ei Holding AS | | 2021 |
| Eianova AS | | 2025 |
| Eide Investing AS | | 2022 |
| Eiendom Vest AS | Real estate | 1993 |
| Eige Holding AS | | 2013 |
| Eike AS | Administrative & support | 2021 |
| Eiklit AS | | 2024 |
| Eilus Holding AS | Real estate | 2017 |
| Eirik Mikalsen AS | Wholesale & retail | 2015 |
| Ekj Engineering AS | Professional & scientific | 2005 |
| Ekoland AS | | 2026 |
| Ekt Vekst AS | | 2025 |
| Eldrehagen AS | Health & social care | 2017 |
| Electron & Ion Sensing AS | Professional & scientific | 2026 |
| Element Design & Drafting AS | Professional & scientific | 2014 |
| Eljovik AS | Real estate | 2009 |
| Elmira AS | Hospitality | 2022 |
| Elstur Holding AS | Financial services | 2005 |
| Emda Engineering AS | Professional & scientific | 1994 |
| Emerald AS | Professional & scientific | 2021 |
| Emerald Resources AS | Professional & scientific | 2017 |
| Emno AS | Professional & scientific | 2005 |
| Emt Holding AS | Real estate | 2020 |
| Energivekst II AS | Financial services | 2013 |
| Ense AS | | 2024 |
| Ente Invest AS | Real estate | 2017 |
| Eqivita AS | Professional & scientific | 2016 |
| Erat AS | Professional & scientific | 2026 |
| Esker & Stanser AS | Manufacturing | 1990 |
| Espen Ellingsen Invest AS | | 2026 |
| Estetiske Studio AS | Other services | 2014 |
| Ev Lyd AS | Arts & recreation | 2019 |
| Eventboks AS | Administrative & support | 2023 |
| Exceller AS | | 2016 |
| Explore Interactive AS | Information & communication | 2013 |
| Extra Madla AS | Wholesale & retail | 2026 |
| Fairhair Labs AS | Professional & scientific | 2024 |
| Falk Invest AS | Professional & scientific | 2005 |
| Fang AS | Professional & scientific | 2005 |
| Far AS | Administrative & support | 2005 |
| Farmerstrong Invest AS | | 2019 |
| Farstad Glass Og Interiør AS | Construction | 1991 |
| Farstad Holding AS | Construction | 2010 |
| Fast Konsulenttjenester AS | Real estate | 2014 |
| Fastrum AS | Professional & scientific | 2023 |
| Fastrum Holding AS | Professional & scientific | 2023 |
| FB3S3 AS | Real estate | 2024 |
| FBL AS | Professional & scientific | 2024 |
| Fela Invest AS | | 2022 |
| Fertro AS | Professional & scientific | 2005 |
| Fest & Fun Ballongstudio AS | Arts & recreation | 2016 |
| FFP Holding AS | Wholesale & retail | 2015 |
| FFP Invest AS | Wholesale & retail | 2016 |
| Fife Holdings AS | Real estate | 2015 |
| Figurati AS | | 2017 |
| Finance Resources Mab AS | Professional & scientific | 2017 |
| Finko Invest AS | | 2025 |
| Firma Worwa AS | Construction | 2015 |
| Firmainvesteringer AS | Wholesale & retail | 2020 |
| Firmware Design AS | Professional & scientific | 2014 |
| First Red Holding AS | Financial services | 2005 |
| First Seagull AS | Financial services | 2022 |
| Fiskum Bud Og Transport AS | Transport & logistics | 2019 |
| Fixit Renholdsbyrå AS | Administrative & support | 2016 |
| Fjellaker.No Da | Professional & scientific | 2005 |
| Fjermestad Rådgivning AS | Professional & scientific | 2021 |
| Fji AS | Professional & scientific | 2014 |
| Fjord Advisory AS | Professional & scientific | 2023 |
| Fjord Quality AS | Real estate | 1995 |
| Fjorden Sjokolade AS | Manufacturing | 2023 |
| Fk-P Invest AS | Real estate | 2012 |
| Fknutsen AS | | 2020 |
| Flaate Mobilitet AS | Administrative & support | 2016 |
| Flirgott AS | | 2020 |
| Flora Invest AS | | 2018 |
| Fluma AS | Professional & scientific | 1999 |
| Flyt Psykologbistand AS | Health & social care | 2011 |
| Foilscape AS | Professional & scientific | 2021 |
| Folgefond AS | | 2026 |
| Forloop Invest AS | Information & communication | 2021 |
| Forlorn Da | Arts & recreation | 2001 |
| Forte Concept AS | Professional & scientific | 2009 |
| Forthun AS | Professional & scientific | 2012 |
| Forus Engineering AS | Professional & scientific | 2008 |
| Fossekallen Kraft AS | Energy | 2007 |
| Fotograf Jeanette Larsen AS | Professional & scientific | 2006 |
| Fotograf Renate Aadnesen AS | Professional & scientific | 2024 |
| Frakaostilkraft AS | Wholesale & retail | 2026 |
| Fratonija AS | | 2022 |
| Fredheim Invest AS | Financial services | 2005 |
| Fredrik Dale Holding AS | | 2021 |