| Entec AS | Wholesale & retail | 1987 |
| Entech Agency AS | Professional & scientific | 2023 |
| Entelechia AS | Financial services | 2018 |
| Enteleki AS | Real estate | 2025 |
| Enteleki Eiendom AS | Real estate | 2026 |
| Enter Media AS | Professional & scientific | 2017 |
| Enter Norway Accounting AS | Professional & scientific | 2016 |
| Enter Norway Consulting & Legal AS | Professional & scientific | 2017 |
| Entercard Norge - Filial Av Entercard Group AB Nuf | Financial services | 2017 |
| Enterframe AS | Information & communication | 2026 |
| Entero AS | Real estate | 2016 |
| Enterprise Planning Da | Information & communication | 2007 |
| Enterprise Protection Inc | Administrative & support | 2010 |
| Enterprise Reporting AS | Information & communication | 2013 |
| Enterprise Solutions AS | Information & communication | 1998 |
| Enterprise Øverås AS | Information & communication | 2017 |
| Enterspace AS | Real estate | 2015 |
| Entertain Me AS | Information & communication | 2021 |
| Entertainment Invest AS | | 2016 |
| Entire Salami AS | | 2022 |
| Entity AS | Professional & scientific | 2015 |
| Entomed Norge AS | Wholesale & retail | 2001 |
| Entos AS | | 2013 |
| Entoto Labs AS | Information & communication | 2025 |
| Entourage AS | Education | 2005 |
| Entourage Holding AS | | 2025 |
| Entp Invest AS | | 2021 |
| Entra ASA | Real estate | 2012 |
| Entra Bryn AS | Real estate | 2018 |
| Entra Eiendom AS | Real estate | 2012 |
| Entra Felleskost AS | Professional & scientific | 2015 |
| Entra Kultur 1 AS | Real estate | 1999 |
| Entra Labs AS | Real estate | 2020 |
| Entra Opf Utvikling AS | Real estate | 2012 |
| Entra Opf Utvikling Holding AS | Real estate | 2012 |
| Entra Service AS | Real estate | 2015 |
| Entra Utleie AS | Real estate | 2005 |
| Entras Bolig AS | Real estate | 1998 |
| Entras Næring AS | Professional & scientific | 1984 |
| Entrecote Mat & Vinhus AS | Hospitality | 2022 |
| Entrega AS | Wholesale & retail | 2016 |
| Entrepedia AS | Information & communication | 2017 |
| Entrepreneurshipone AS | Professional & scientific | 2017 |
| Entreprenør Svein Rommen AS | Construction | 1985 |
| Entreprenør Tore Sandell AS | Construction | 2021 |
| Entreprenør Welin & Haneborg AS | Construction | 1992 |
| Entreprenørbygg Eiendom AS | Real estate | 1979 |
| Entreprisekontoret AS | Information & communication | 2025 |
| Entri Miljøreiser Ans | Administrative & support | 1990 |
| Entropia AS | | 2020 |
| Entrust Global SAS Nuf | Financial services | 2024 |
| Entrypoint Partners AS | Professional & scientific | 2021 |
| Entréen Næring 2 AS | Real estate | 2018 |
| Entur AS | Information & communication | 2016 |
| Entyskindian AS | Information & communication | 2020 |
| Enumero AS | | 2019 |
| Envac Norge AS | Wholesale & retail | 2000 |
| Envelope 1976 AS | Wholesale & retail | 2018 |
| Envemo Invest AS | Real estate | 2011 |
| Envester AS | Information & communication | 2020 |
| Envi Holding AS | Professional & scientific | 2016 |
| Envieco AS | Construction | 2020 |
| Envii Shops Norway AS | Wholesale & retail | 2014 |
| Envira Express AS | Real estate | 2024 |
| Enviro Consulting AS | Professional & scientific | 2018 |
| Enviro Elektro AS | Construction | 2020 |
| Enviro Entreprenør AS | Construction | 2016 |
| Enviro Gruppen AS | Construction | 2023 |
| Enviro IT AS | Information & communication | 2025 |
| Enviro Rørservice AS | Construction | 2024 |
| Envirofuels AS | Manufacturing | 2020 |
| Envirom Green AS | Manufacturing | 2012 |
| Envirom Group AS | Manufacturing | 2009 |
| Enviroom AS | Administrative & support | 2020 |
| Envision Green Transition II AS | Financial services | 2024 |
| Envision SPV I AS | Financial services | 2024 |
| Envisiontech AS | Financial services | 2021 |
| Envoi AS | Information & communication | 2026 |
| Envra AS | Information & communication | 2026 |
| Enzo Holding AS | Financial services | 2018 |
| Enzo Management Group AS | Professional & scientific | 2007 |
| Enøk Consult AS | Professional & scientific | 1989 |
| Eoa Capital AS | | 2021 |
| Eoh Invest AS | Wholesale & retail | 2017 |
| Eokas AS | Professional & scientific | 2023 |
| Eol Capital AS | | 2025 |
| Eolas AS | Professional & scientific | 2020 |
| Eolicada Energi AS | Professional & scientific | 2012 |
| Eolus Vind Norge Holding AS | Construction | 2018 |
| Eon Asset Management AS | Real estate | 2025 |
| Eon Eiendom AS | Real estate | 2025 |
| Eon Invest AS | | 2019 |
| Eonbit AS | Information & communication | 2006 |
| Eonlight AS | Financial services | 2012 |
| Eopsin AS | Real estate | 2024 |
| Eopt Home AS | Information & communication | 2024 |
| Eori AS | | 2025 |
| Eos Capital AS | | 2025 |
| Eos Energi AS | Professional & scientific | 2024 |
| Eos Holding AS | | 2023 |