| Eccera IT Academy AS | Education | 2020 |
| Eccera IT Solutions AS | Information & communication | 2001 |
| Eco Renhold AS | Administrative & support | 2016 |
| Econio AS | Professional & scientific | 1973 |
| Econsulting AS | Information & communication | 2019 |
| Econsulting Prosjekt AS | Professional & scientific | 2025 |
| Ecosør AS | Construction | 2009 |
| Ecosør Eiendom AS | Real estate | 2023 |
| Ecosør Holding AS | Construction | 2009 |
| Ecotech AS | Information & communication | 2025 |
| Ecowide AS | | 2024 |
| Ecowide Norge AS | Professional & scientific | 2025 |
| Edelis Invest AS | Real estate | 2013 |
| Edelt Metall AS | Wholesale & retail | 2018 |
| Edrupt Services AS | Information & communication | 2023 |
| Edvardsen Demroen Holding AS | | 2017 |
| Edvardsen Elektro AS | Construction | 2013 |
| Edward Sveen AS | Professional & scientific | 2023 |
| Een Holding AS | | 2020 |
| Effektiv Energi AS | Professional & scientific | 2013 |
| Eggum Wangen Holding AS | Financial services | 2018 |
| Egrob Holding AS | Wholesale & retail | 2005 |
| Eho Holding AS | Financial services | 2015 |
| Eide AS | Health & social care | 1987 |
| Eidsiva Eiendom AS | Real estate | 2004 |
| Eidsiva Energi AS | Energy | 2001 |
| Eidsiva Hafslund Vind Da | Professional & scientific | 2023 |
| Eidsiva Vekst AS | Professional & scientific | 2001 |
| Eiendom 2317 AS | Real estate | 2013 |
| Eiendom Energi Og Enøk Selskapet 3 E Da | Real estate | 1999 |
| Eiendomshuset Optimum AS | Real estate | 2016 |
| Eiendomsinvest AS | Real estate | 1987 |
| Eiendomsprosess AS | Construction | 2017 |
| Eiendomsutvikling Østlandet AS | Real estate | 2005 |
| Ektehaandverk AS | Manufacturing | 2017 |
| Elcam RTT AS | Manufacturing | 1993 |
| Eleganterom AS | Wholesale & retail | 2019 |
| Eligo AS | | 2021 |
| Elins Babysvømming AS | Education | 2017 |
| Eliteur AS | Wholesale & retail | 2024 |
| Ellis Invest AS | Professional & scientific | 2013 |
| Elmontasje AS | Construction | 2019 |
| Elop Technology AS | Professional & scientific | 2021 |
| Elotech Eiendom AS | Real estate | 2008 |
| Elotech Invest AS | Real estate | 2008 |
| Elprosjekt AS | Professional & scientific | 2017 |
| Elsikkerhet Norge AS | Professional & scientific | 2004 |
| Elta Eiendomsdrift AS | Real estate | 2012 |
| Elta Holding AS | Real estate | 2012 |
| Elta Restaurantdrift AS | Hospitality | 2010 |
| Elverhøy-Halvorsen AS | Real estate | 2024 |
| Elvesletta 12 Eiendom AS | Real estate | 2022 |
| Elvesletta 7 AS | Manufacturing | 1991 |
| Elvia AS | Energy | 1998 |
| Emaus Eiendom AS | Real estate | 2020 |
| Emvijo Holding AS | | 2019 |
| Encircle Games AS | Information & communication | 2014 |
| End Game AS | | 2018 |
| Endeavour II AS | | 2024 |
| Endeavour II Investments AS | | 2024 |
| Enervit Nutrition AS | Wholesale & retail | 2013 |
| Engen AS | Real estate | 2009 |
| Enger Home AS | Wholesale & retail | 1999 |
| Ens Eiendom AS | Real estate | 2021 |
| Enticore AS | Professional & scientific | 2010 |
| Enzyferm AS | Professional & scientific | 2023 |
| Erik Jacobsen Eiendom AS | Real estate | 2005 |
| Erik Jacobsen Holding AS | Real estate | 2005 |
| Eriksen Data Hamar AS | Other services | 2013 |
| Ert Invest AS | Financial services | 2005 |
| Erto AS | Transport & logistics | 2024 |
| Es-As Holding AS | | 2023 |
| Eshaghi Holding AS | Real estate | 2017 |
| Espern AS | Arts & recreation | 2003 |
| Espern Eiendom AS | Real estate | 1996 |
| Espern Eiendom Holding AS | Real estate | 2023 |
| Espern Express Lillehammer AS | Arts & recreation | 2020 |
| Ess Consulting AS | Professional & scientific | 2023 |
| Essu AS | Real estate | 2023 |
| Esubsea AS | Professional & scientific | 2021 |
| Etylia AS | | 2018 |
| Eventlaget AS | Administrative & support | 2017 |
| Evolvr AS | Information & communication | 2014 |
| Exerceo AS | Professional & scientific | 2024 |
| Exo Media AS | Professional & scientific | 2020 |
| Explotion Da | Arts & recreation | 2007 |
| Extra Eiendom AS | Real estate | 2024 |
| Eynden Holding AS | | 2020 |
| Fab Entreprenør AS | Construction | 2025 |
| Fabelaktiv AS | Information & communication | 1985 |
| Fair Enough AS | Professional & scientific | 2018 |
| Fakta Eiendom AS | Real estate | 1992 |
| Fakta Råd & Regnskap AS | Professional & scientific | 1998 |
| Falsensgate 14 AS | Real estate | 1987 |
| Falsensgate Holding AS | Real estate | 2024 |
| Fama Thoresen AS | | 2021 |
| Fanny Holding AS | Real estate | 2006 |
| Fara Research AS | Professional & scientific | 2022 |
| Farbar AS | Professional & scientific | 2026 |
| Farmacare Holding AS | Wholesale & retail | 2021 |