| Eie Eiendom & Utleie AS | Real estate | 2020 |
| Eiendom Andebu AS | Real estate | 2008 |
| Eiendom Midt AS | Real estate | 2022 |
| Eiendom Og Maskin AS | Real estate | 2013 |
| EIENDOM360 AS | Professional & scientific | 2022 |
| Eiendomsbasen AS | Real estate | 2025 |
| Eiendomscompagniet Trondheim AS | Real estate | 1990 |
| Eiendomskontroll AS | Professional & scientific | 2026 |
| Eiendomsmegler 1 Midt-Norge AS | Real estate | 1984 |
| Eiendomspartneren AS | Real estate | 2021 |
| Eiendomsselskapet Mellomila 88 AS | Real estate | 2006 |
| Eiendomsselskapet Sand AS | Real estate | 2000 |
| Eigen AS | Real estate | 2013 |
| Eignir AS | Real estate | 1994 |
| Eiklund AS | Real estate | 2015 |
| Eiksenteret Eiendom AS | Real estate | 2005 |
| Eilif Solem Consulting AS | Professional & scientific | 2012 |
| Einar Haagensli Holding AS | | 2023 |
| Einar Rønning AS | Wholesale & retail | 1994 |
| Einar Wuttudal Holding AS | Administrative & support | 2005 |
| Einarsen Drift AS | Construction | 2025 |
| Einarsen Investment AS | Construction | 2020 |
| Einarsen Takfornying AS | Construction | 2020 |
| Einkarl AS | | 2024 |
| Eios Holding AS | | 2025 |
| Eire AS | Wholesale & retail | 2024 |
| Eireca AS | | 2005 |
| Eirik Irgens AS | Education | 2020 |
| Eirik Jarls Gate 6 AS | Real estate | 2006 |
| Eirik Larsen Holding AS | Information & communication | 2018 |
| Eirik Larsen Invest AS | Financial services | 2011 |
| Eivi Holding AS | Financial services | 2017 |
| Eivind Tech AS | | 2025 |
| Eje AS | | 2023 |
| Ek Bluebridge AS | Professional & scientific | 2025 |
| Ek Butikkinvest AS | | 2021 |
| Ek Johanssen AS | Construction | 2023 |
| Ek Johnsen Holding AS | | 2019 |
| Ekaterina Krokstad Fotograf AS | Professional & scientific | 2023 |
| Ekkekko AS | | 2007 |
| Ekkofilm AS | Information & communication | 2006 |
| Ekle Sandtak AS | Real estate | 1982 |
| Ekon Midtnorge AS | Real estate | 2005 |
| Ekråd AS | Professional & scientific | 2022 |
| Eksam AS | Real estate | 2021 |
| Eksan International AS | Professional & scientific | 2018 |
| Eksosverkstedet Trondheim AS | Other services | 2006 |
| Eksperten Invest AS | Construction | 2018 |
| Eksplisitt AS | Professional & scientific | 2020 |
| Ekspress Pizza & Grill AS | Hospitality | 2017 |
| Ektuma Holding AS | | 2026 |
| El-Crystal Logistic & Solutions AS | Transport & logistics | 2016 |
| El-Focus AS | Construction | 2007 |
| El-Tema AS | Wholesale & retail | 2022 |
| El.Mas AS | Professional & scientific | 2023 |
| Ela Eiendom AS | Real estate | 2015 |
| Ela Frisør AS | Other services | 2015 |
| Ela Frisør Brattørgata AS | Other services | 2025 |
| Ela Holding AS | | 2025 |
| Ela Klinikken AS | Other services | 2013 |
| Eldr Energy AS | Energy | 2026 |
| Ele-Consult AS | | 2024 |
| Electric Vehicle Institute AS | Wholesale & retail | 2014 |
| Electrical Machines Composite Consulting AS | Professional & scientific | 2024 |
| Electromagnetic Geoservices UK Limited | Professional & scientific | 2005 |
| Elekt AS | Information & communication | 2018 |
| Elektriker 1 Trondheim AS | Construction | 2002 |
| Elektriker AS | Construction | 2006 |
| Elektriker Trondheim AS | Construction | 2023 |
| Elektrikerservice AS | Construction | 1995 |
| Elektro Support AS | Construction | 2017 |
| Elektromontør AS | Construction | 2023 |
| Elem Byggmix AS | Wholesale & retail | 2026 |
| Elem Takservice AS | Construction | 2024 |
| Elementary AS | Professional & scientific | 2013 |
| Elevate Collective AS | Professional & scientific | 2026 |
| Elevlogg Ans | Information & communication | 2001 |
| Elgeseter Eiendom AS | Real estate | 2021 |
| Elgeseter Gate 2 AS | Real estate | 2004 |
| Elgeseter Gate 31-10 AS | Real estate | 2019 |
| Elgeseter Gate 31-6 AS | Real estate | 2019 |
| Elgeseter Gate 4 Og 6 AS | Real estate | 2024 |
| Elgeseter Hårdesign AS | Other services | 1995 |
| Elgesetergate 16 Eiendom AS | Real estate | 2018 |
| Elgesetergt 58 AS | Households | 1981 |
| Eli Knutsen AS | Professional & scientific | 2017 |
| Elias Invest AS | Financial services | 2010 |
| Eliassen VVS AS | Construction | 2006 |
| Elida Productions AS | Administrative & support | 2018 |
| Eliløkken Eiendom AS | Real estate | 1975 |
| Eling AS | | 2020 |
| Elinor Batteries AS | Manufacturing | 2022 |
| Elisabeth a Foto AS | Professional & scientific | 2020 |
| Elisabeth Halvorsen Holding AS | | 2025 |
| Elite Blikk AS | Construction | 2019 |
| Elitept AS | Education | 2014 |
| Elitesalg AS | Wholesale & retail | 2025 |
| Elivate AS | Transport & logistics | 2023 |
| Elivate Group AS | Transport & logistics | 2024 |
| Eljuwo AS | | 2025 |