| Ener Drift AS | Real estate | 1999 |
| Ener Kapital AS | Professional & scientific | 2007 |
| Enfermeros AS | Health & social care | 2022 |
| Engebukta Invest AS | | 2020 |
| Enter AS | Wholesale & retail | 1993 |
| Enter Prosjektadministrasjon AS | Professional & scientific | 2008 |
| Enterprise Logistics Nuf | Real estate | 2022 |
| Enviro Offshore AS | Wholesale & retail | 2021 |
| Ep Maskin AS | Construction | 2017 |
| Epolok AS | Real estate | 1986 |
| Eriksrud Motorsport AS | Professional & scientific | 2026 |
| Eringis Byggeservice AS | Construction | 2021 |
| Ermira Eiendom AS | Real estate | 2012 |
| Erp-Konsulenten AS | Information & communication | 2016 |
| Esa-Besi AS | | 2026 |
| Esir AS | | 2021 |
| Esni Invest AS | | 2020 |
| Essence 8 AS | | 2020 |
| Esta CC Holding AS | Other services | 2021 |
| Esta Eiendom AS | Real estate | 2019 |
| Estoril AS | Professional & scientific | 1998 |
| Ets Utvikling AS | | 2019 |
| Evjen Industrier AS | Professional & scientific | 2023 |
| Evolva AS | | 2025 |
| Exentra AS | Information & communication | 2009 |
| Exita Holding AS | | 2024 |
| Exow AS | Information & communication | 2025 |
| F. Kjær Holding AS | Financial services | 2017 |
| Fa Invest AS | Real estate | 2014 |
| Farmasi Norway AS | Wholesale & retail | 2025 |
| FB Productions AS | Administrative & support | 2013 |
| Fedits AS | Information & communication | 2023 |
| Feng Shui Arkitekten AS | Professional & scientific | 2024 |
| Fiberconnect AS | Construction | 2013 |
| Filagården AS | Real estate | 2018 |
| Fink IT AS | Information & communication | 2018 |
| Finstad Engros AS | Wholesale & retail | 2017 |
| First Light TV AS | Information & communication | 2011 |
| Firstcorp AS | Professional & scientific | 2002 |
| Fjeldborg AS | Real estate | 2022 |
| Fjellskar Bygg AS | Construction | 2016 |
| Fjellskarveien Veilag SA | Real estate | 1964 |
| Flatåsen 1 Vann- Og Avløpslag SA | Water & waste | 2025 |
| Flyin AS | Information & communication | 2025 |
| Flåten Holding AS | | 2023 |
| Fokuferd AS | Information & communication | 2005 |
| Fonna Holding AS | Real estate | 2024 |
| Fornyerservice AS | Real estate | 1993 |
| Fort AS | Construction | 2024 |
| Foss Bruk AS | Real estate | 1985 |
| Foss Eiendom AS | Real estate | 1986 |
| Fosslien Graveservice AS | Construction | 2020 |
| Fotograf Wallinga AS | Professional & scientific | 2024 |
| FPM Holding AS | Wholesale & retail | 2018 |
| Fredrik Kjeldsberg Invest AS | Real estate | 2005 |
| Frode C. Kleven AS | Financial services | 2017 |
| Frost Development AS | Arts & recreation | 2016 |
| Fuglehunden AS | Information & communication | 2001 |
| Furubakken Invest AS | Real estate | 1997 |
| Fuz AS | Real estate | 2023 |
| Fødebagen AS | Health & social care | 2021 |
| G. Hagen Invest AS | Manufacturing | 2010 |
| Galleberg Barnehage SA | Education | 2002 |
| Galleberg Godshus AS | Real estate | 2006 |
| Gallebergveien 119 Holding AS | Real estate | 2017 |
| Gallebergveien Eiendom AS | Real estate | 2017 |
| Gampedalen Invest AS | | 2026 |
| Gastromat AS | Manufacturing | 1966 |
| Gaudium Ans | Wholesale & retail | 2006 |
| Geba Holding AS | Real estate | 2008 |
| Geir Ramskjell Holding AS | Financial services | 2018 |
| GERONIMO54 Invest AS | | 2021 |
| Gexpo Invest AS | Real estate | 2025 |
| Gexpo Utvikling AS | Real estate | 2025 |
| Gir AS | Professional & scientific | 1994 |
| Gran Anlegg- Og Vedlikeholdsservice AS | Manufacturing | 2019 |
| Gran Gård Drift AS | Manufacturing | 2004 |
| Gran Industries AS | Health & social care | 2022 |
| Gran Skog Og Landbruk AS | Agriculture & fishing | 2024 |
| Gran Søndre AS | Hospitality | 2019 |
| Grande Sæther Holding AS | | 2026 |
| Granlund Eiendom AS | Real estate | 2010 |
| Gravity AS | Professional & scientific | 2025 |
| Greb AS | | 2005 |
| Gregersen Invest AS | | 2020 |
| Grepperud Bygg Og Eiendom AS | Real estate | 2020 |
| Grepperud Invest AS | Real estate | 2020 |
| Grill Fasting Maskin AS | Agriculture & fishing | 2024 |
| Grillen 2 AS | Hospitality | 2020 |
| Gros Helsekost AS | Wholesale & retail | 1988 |
| Grunnentreprenøren AS | Construction | 1991 |
| Grytebakke Gård AS | Arts & recreation | 2017 |
| Grythe Holding AS | Construction | 2018 |
| Grythe Maskin AS | Construction | 2018 |
| GS Bygg Og Anlegg AS | Construction | 2016 |
| GT Johansen Engineering AS | Professional & scientific | 2026 |
| GTM Tømrer AS | Construction | 2013 |
| Gulbrandsgard Holding AS | Wholesale & retail | 2020 |
| Gulliksen & Sønn Ans | Administrative & support | 1990 |
| Gulliksrud Invest AS | Manufacturing | 2005 |