| Endre Kapital AS | Real estate | 2007 |
| Endre Lima Løvås Invest AS | Professional & scientific | 2001 |
| Endrekraft AS | Education | 2022 |
| Endresen Kapital AS | Financial services | 2023 |
| Endresjo Investering AS | Real estate | 2012 |
| Endury AS | Manufacturing | 2017 |
| Endury Eiendom AS | Real estate | 2017 |
| Endury Holding AS | Real estate | 1986 |
| Endury Management AS | Real estate | 2005 |
| Enec AS | Professional & scientific | 2017 |
| Enerbits AS | Wholesale & retail | 2022 |
| Energi Og Vann AS | Professional & scientific | 2021 |
| Energiboring AS | Construction | 2025 |
| Energistasjonen AS | Wholesale & retail | 2019 |
| Energy AS | Professional & scientific | 2020 |
| Energy Transition Norway SA | Professional & scientific | 2018 |
| Energy Ventures Holding AS | Professional & scientific | 2007 |
| Energy Ventures II AS | | 2005 |
| Energychange AS | Professional & scientific | 2024 |
| Energyfirst Holding AS | Professional & scientific | 2015 |
| Energysaving AS | Construction | 2022 |
| Enerqitech AS | Professional & scientific | 2021 |
| Enertek Innova AS | Professional & scientific | 2017 |
| Enesta AS | Professional & scientific | 2018 |
| Enforme AS | Health & social care | 2006 |
| Enga Fysikalske AS | Health & social care | 2024 |
| Engage Innovate AS | Professional & scientific | 2014 |
| Engelsminnegate 24 Da | Real estate | 2009 |
| Engen Og Gjengen Holding AS | | 2023 |
| Engerbakk AS | Health & social care | 2023 |
| Engiadina AS | | 2024 |
| Engineering Ids AS | Professional & scientific | 2018 |
| Enginuity AS | Professional & scientific | 2022 |
| Englehår AS | Other services | 2026 |
| Engström Holding AS | | 2026 |
| Engøy NO.9 AS | Manufacturing | 2018 |
| Enigma Design AS | Professional & scientific | 2005 |
| Enoma Invest AS | | 2021 |
| Enorm Invest AS | | 2022 |
| Enovaworks AS | Professional & scientific | 2023 |
| Enp AS | Professional & scientific | 2016 |
| Enserio AS | Real estate | 2021 |
| Ensign AS | Professional & scientific | 2001 |
| Enso Kapital AS | | 2025 |
| Ensogo AS | Information & communication | 2024 |
| Entablado AS | Arts & recreation | 2025 |
| Entenca AS | Real estate | 2017 |
| Enter Energy AS | Energy | 2020 |
| Enternett AS | Information & communication | 1997 |
| Enternett Eiendom AS | Real estate | 2007 |
| Entreprenørfirma Frode Olsson AS | Construction | 1995 |
| Ents AS | Wholesale & retail | 2021 |
| Enviro Engros AS | Wholesale & retail | 2019 |
| Envirosol AS | Manufacturing | 2020 |
| Envirotech International AS | Manufacturing | 1990 |
| Envision Holding AS | Financial services | 2005 |
| Envizion AS | Professional & scientific | 2020 |
| Envo Topco AS | | 2025 |
| Envy Auto AS | Wholesale & retail | 2021 |
| Eny AS | | 2019 |
| Enzin AS | Professional & scientific | 2023 |
| Eon Valves Norway AS | Manufacturing | 2022 |
| Eor Strategy AS | Professional & scientific | 2022 |
| Epicasa AS | Wholesale & retail | 2004 |
| Eplestien Eiendom AS | Real estate | 2019 |
| Epoke Atelier AS | Wholesale & retail | 2026 |
| Epsco Norge AS | Administrative & support | 2006 |
| Epsilon Invest AS | Financial services | 2018 |
| EPSILON13 AS | | 2019 |
| Eqon AS | Professional & scientific | 2018 |
| Eqon Norway AS | Professional & scientific | 2026 |
| Eqon SPV AS | | 2026 |
| Eqqo AS | Information & communication | 2021 |
| Equanim Solutions AS | Professional & scientific | 2020 |
| Equi Venture AS | Financial services | 2021 |
| Equine Fusion AS | Professional & scientific | 2005 |
| Equinor Algeria AS | Mining & quarrying | 2003 |
| Equinor Angola AS | Mining & quarrying | 1990 |
| Equinor Angola Block 1/14 AS | Mining & quarrying | 2020 |
| Equinor Angola Block 15 AS | Mining & quarrying | 1997 |
| Equinor Angola Block 16/21 AS | Mining & quarrying | 2026 |
| Equinor Angola Block 17 AS | Mining & quarrying | 1997 |
| Equinor Angola Block 19 AS | Mining & quarrying | 2025 |
| Equinor Angola Block 25 AS | Mining & quarrying | 1994 |
| Equinor Angola Block 29 AS | Mining & quarrying | 2020 |
| Equinor Angola Block 31 AS | Mining & quarrying | 1994 |
| Equinor Angola Block 31/21 AS | Mining & quarrying | 2022 |
| Equinor Angola Block 34 AS | Mining & quarrying | 2025 |
| Equinor Angola Block 35 AS | Mining & quarrying | 2025 |
| Equinor Angola Block 40 AS | Mining & quarrying | 2011 |
| Equinor Angola Block 46 AS | Mining & quarrying | 2021 |
| Equinor Angola Block 47 AS | Mining & quarrying | 2021 |
| Equinor Angola Ultradeep AS | Mining & quarrying | 2026 |
| Equinor Apsheron AS | Mining & quarrying | 1995 |
| Equinor Argentina AS | Mining & quarrying | 2018 |
| Equinor ASA | Mining & quarrying | 1972 |
| Equinor Asset Management AS | Financial services | 1999 |
| Equinor BTC Caspian AS | Mining & quarrying | 2000 |
| Equinor BTC Finance AS | Mining & quarrying | 2002 |
| Equinor China AS | Mining & quarrying | 1996 |