| Caspara Invest AS | Real estate | 2024 |
| Cbo-Holding AS | | 2023 |
| Consept Eiendom AS | Real estate | 2002 |
| Corner Jenssen Agentur AS | Wholesale & retail | 2016 |
| Crossfit Senja AS | Arts & recreation | 2020 |
| Dalgård Holding AS | Agriculture & fishing | 2011 |
| Data-Produkt AS | Information & communication | 1976 |
| Datek Løfteteknikk Nord AS | Manufacturing | 2023 |
| Dekkerhus Holding AS | Hospitality | 2022 |
| Dental Design AS | Manufacturing | 1997 |
| Dione Takeaway AS | Hospitality | 2022 |
| Dyretransport Nord AS | Transport & logistics | 2024 |
| E S Eiendom Ans | Real estate | 1996 |
| E.P Holding AS | | 2025 |
| Eclips AS | Other services | 2011 |
| Ecologs AS | Wholesale & retail | 2021 |
| Eiendomsfirma Awh Da | Real estate | 2008 |
| Eiendomsgruppen Nord AS | Real estate | 2011 |
| Eilif Rydeng AS | Wholesale & retail | 1979 |
| Eir Atelier AS | Other services | 2008 |
| Ejak Holding AS | Professional & scientific | 2019 |
| El Fokus AS | Construction | 2025 |
| Eldi Refa AS | Manufacturing | 2026 |
| Elektrokontakt AS | Construction | 2003 |
| Eliassen Installasjon AS | Construction | 2011 |
| Ellama AS | | 2014 |
| Elvestaden AS | Transport & logistics | 2026 |
| Eminik Eiendom AS | | 2023 |
| En Kaffe TÈ AS | Hospitality | 2012 |
| EXPRESS1 AS | Transport & logistics | 2017 |
| Fagerfjell Beitelag SA | Agriculture & fishing | 1980 |
| Fagerlidal 6 AS | Real estate | 2013 |
| Fagerlidalen Miljøterapi AS | Real estate | 2012 |
| Faj Holding AS | Real estate | 2017 |
| Fasit AS | | 2012 |
| Fastlege Torgeir Ullestad Holme AS | Health & social care | 2017 |
| FDV Troms AS | Real estate | 2005 |
| Feel Good Store AS | Wholesale & retail | 2013 |
| Fenomental AS | Education | 2015 |
| Fifa Holding AS | | 2015 |
| Fimek AS | Manufacturing | 2016 |
| Fimek Eiendom AS | Real estate | 2018 |
| Fimek Holding AS | Manufacturing | 2017 |
| Fimek Utleie AS | Wholesale & retail | 2017 |
| Finansnes AS | | 2021 |
| Finnfjord AS | Manufacturing | 1983 |
| Finnfjord Miljøenergi AS | Energy | 2010 |
| Finnfjord Service Og Invest AS | Administrative & support | 2021 |
| Finnfjordbotn Storkiosk AS | Wholesale & retail | 2019 |
| Finnsnes Billakkering AS | Other services | 2008 |
| Finnsnes Blomsteratelie AS | Wholesale & retail | 1990 |
| Finnsnes Byggservice AS | Construction | 2020 |
| Finnsnes Catering AS | Hospitality | 1995 |
| Finnsnes Dykk & Anleggservice AS | Agriculture & fishing | 2018 |
| Finnsnes Eiendomsutvikling AS | Real estate | 2008 |
| Finnsnes Feriesenter AS | Hospitality | 2020 |
| Finnsnes Fjernvarme AS | Energy | 2015 |
| Finnsnes Foto AS | Professional & scientific | 1998 |
| Finnsnes Havn AS | Real estate | 2009 |
| Finnsnes Herremote AS | Wholesale & retail | 2011 |
| Finnsnes Hotell AS | Hospitality | 1984 |
| Finnsnes Hotelldrift AS | Hospitality | 2015 |
| Finnsnes Interiør & Møbler AS | Manufacturing | 1997 |
| Finnsnes Lavpris AS | Wholesale & retail | 2012 |
| Finnsnes Panorama AS | Real estate | 2013 |
| Finnsnes Renholdsservice AS | Administrative & support | 2015 |
| Finnsnes Rør Og Elektro AS | Construction | 2013 |
| Finnsnes Selvvask AS | Other services | 2026 |
| Finnsnes Taxi Eiendom AS | Real estate | 2014 |
| Finnsnes Taxisentral Ba | Transport & logistics | 2004 |
| Finnsnes Terminalbygg AS | Real estate | 2003 |
| Finnsnes Termotransport AS | Transport & logistics | 2002 |
| Finnsnes Vaktmesterservice AS | Administrative & support | 2001 |
| Fisk I Nor AS | Agriculture & fishing | 2007 |
| Fiskeriservice Senja AS | Wholesale & retail | 2011 |
| Flo Engvoll AS | Agriculture & fishing | 2016 |
| Flow Kapital AS | | 2026 |
| Flowfrisør AS | Other services | 2026 |
| FMH Drift AS | Manufacturing | 2016 |
| Folkebladet AS | Information & communication | 1965 |
| Fossbakk Invest AS | | 2026 |
| Frisørhjerte AS | Other services | 2019 |
| Froeya Service Ltd | | 2015 |
| Frontruta Bilglass AS | Other services | 2016 |
| Frostamo Invest AS | Real estate | 2014 |
| Frøystad Finnsnes AS | Wholesale & retail | 2020 |
| Galleri Aglapsvik AS | Arts & recreation | 2020 |
| Gardia AS | Administrative & support | 2005 |
| Geir Løkke Invest AS | | 2026 |
| Gisi Holding AS | Real estate | 2021 |
| Gisund Båthavn SA | Arts & recreation | 1991 |
| Gisund Invest AS | | 2023 |
| GL Installasjon AS | Construction | 2023 |
| GL Invest 2023 AS | Construction | 2023 |
| Glossie Mani Pedi AS | Other services | 2025 |
| GO2 American Diner AS | Hospitality | 2019 |
| Gozzip Frisør AS | Other services | 2011 |
| Greie Gutter AS | Real estate | 2025 |
| Gundersen Elektro AS | Construction | 1992 |
| Gundersen Elektro Eiendom AS | Construction | 1996 |