| Domkirkens Barnehage AS | Education | 2022 |
| Dorgvegen Drift SA | Transport & logistics | 2015 |
| Dragan Eiendom AS | Real estate | 2025 |
| Dragan Holding AS | Real estate | 2025 |
| Dragøy Grossist AS | Wholesale & retail | 2016 |
| Drangfelt Invest AS | | 2022 |
| Drecker Optikk AS | Health & social care | 2012 |
| Dreyer Økonomi AS | Professional & scientific | 2000 |
| Driftig AS | Real estate | 2005 |
| Driving Queen AS | Transport & logistics | 2025 |
| Dronesystemer AS | Professional & scientific | 2026 |
| Dronningens Gate 42 Narvik AS | Real estate | 2020 |
| Dronningens Gate 52 54 Narvik AS | Real estate | 2021 |
| Drop Shot AS | | 2026 |
| Drosje Nasir Imam AS | Transport & logistics | 2024 |
| Drytech AS | Manufacturing | 2003 |
| Dse Holding AS | | 2018 |
| DSM Bolig AS | Real estate | 2016 |
| Dta Invest AS | | 2026 |
| Dteam AS | | 2020 |
| Dualog AS | Information & communication | 1989 |
| Dualog Excel AS | Information & communication | 2001 |
| Dualog Fisknett AS | Information & communication | 2004 |
| Dualog Gofish AS | Information & communication | 2022 |
| Dualog Group AS | Information & communication | 2024 |
| Dualog Holding AS | Information & communication | 2023 |
| Duknes AS | Real estate | 2024 |
| Durmål AS | Real estate | 2025 |
| Dyp Invest AS | Real estate | 2007 |
| Dagenborg Maskin A/S | Wholesale & retail | 1985 |
| E Chavanne AS | Professional & scientific | 2024 |
| E Mikalsen Holding AS | | 2023 |
| E Mydland Holding AS | | 2017 |
| E&A Consult AS | Professional & scientific | 2016 |
| E.A. Smith Tromsø Eiendom AS | Real estate | 2016 |
| E.H.D Holding AS | | 2026 |
| Earthwise AS | Professional & scientific | 2024 |
| East AS | Hospitality | 2019 |
| Easytask AS | Other services | 2025 |
| Ebeltoften Familiebarnehage AS | Education | 2014 |
| Echi AS | Real estate | 2018 |
| Echpro AS | Real estate | 2014 |
| Eco Forvaltning AS | Real estate | 2017 |
| Ecoarts AS | Wholesale & retail | 2014 |
| Ecoconsult AS | Construction | 2016 |
| Ecofang AS | Agriculture & fishing | 2016 |
| Econor AS | Construction | 2005 |
| Econor Holding AS | Construction | 2020 |
| Ecovus AS | | 2018 |
| Edel Antikk & Vintage AS | Wholesale & retail | 2026 |
| Edmund AS | Financial services | 2005 |
| Edurt AS | | 2026 |
| Edvardsson Entreprenør Bygg AS | Construction | 2002 |
| Edynamikk Da | Information & communication | 2005 |
| Effektiv Regnskapsservice AS | Professional & scientific | 1985 |
| Eføy Eiendom AS | Real estate | 2021 |
| Eføy Service AS | Real estate | 2019 |
| Egil Hansen Holding AS | Financial services | 2005 |
| Eidkjosen Industripark AS | Manufacturing | 1989 |
| Eiendom & Norske Hus AS | Construction | 2005 |
| Eiendom Og Prosjekt AS | Professional & scientific | 2026 |
| Eiendomsgruppen AS | Real estate | 2000 |
| Eiendomsgruppen Nord-Norge AS | Real estate | 1999 |
| Eiendomsgruppen Trondheim AS | Real estate | 2014 |
| Eiendomsgruppen Utvikling AS | Real estate | 2019 |
| Eiendomsgruppen Vest AS | Real estate | 2008 |
| Eiendomsmegler 1 Nord-Norge AS | Real estate | 1978 |
| Eiendomspartner Nord AS | Real estate | 2022 |
| Eiendomspartner Prosjekt AS | Real estate | 2019 |
| Eiendomsselskapet Mellomveien AS | Real estate | 1996 |
| Eikrem Holding AS | Real estate | 2012 |
| Eimskip Norway AS | Transport & logistics | 1985 |
| Einar Sørensen Maskinentreprenør AS | Construction | 2005 |
| Einerhagen Eiendom AS | Real estate | 2015 |
| Eines Rør AS | Construction | 2019 |
| Eio Holding AS | Financial services | 2005 |
| Eira Og Mikalsen Gavetips Da | Information & communication | 2000 |
| Eirin Invest AS | | 2019 |
| Eiro AS | Construction | 2016 |
| Ejn AS | | 2026 |
| Ekak Eiendom AS | Real estate | 2025 |
| Ekak Invest AS | Real estate | 2022 |
| Ekrehagen Friluftsbarnehage SA | Education | 1988 |
| Ekspresslossing AS | Transport & logistics | 1992 |
| Ekstra Hender AS | Administrative & support | 2020 |
| El-Holding AS | | 2020 |
| El-Installasjon Tromsø AS | Construction | 2002 |
| El-Partner AS | Construction | 2016 |
| Elde AS | Real estate | 2016 |
| Elefant Indisk Restaurant AS | Hospitality | 2014 |
| Elektroco AS | Construction | 2017 |
| Element Majatehas Ou | Construction | 2009 |
| Elesco Tromsø AS | Other services | 2018 |
| Elevate Bidco AS | | 2025 |
| Elevate Norway AS | Administrative & support | 2025 |
| Eli AS | Real estate | 2016 |
| Elisabeth Velvære AS | Other services | 2014 |
| Elite Foto Tromsø AS | Wholesale & retail | 2012 |
| Ellingsen & Hesse Holding AS | | 2025 |
| Ellinor AS | Wholesale & retail | 2024 |