| Aiste AS | Professional & scientific | 2026 |
| Alternative Konstrukjoner AS | Construction | 2026 |
| Arktix Group AS | | 2026 |
| Arktix Maritime AS | Administrative & support | 2026 |
| Austerfjord Elgvald SA | Arts & recreation | 1983 |
| Austerfjord Grunneierlag SA | Real estate | 1967 |
| Autoline AS | Manufacturing | 1998 |
| B.E.K. Consulting AS | Information & communication | 2017 |
| Bankbygget AS | Real estate | 2003 |
| Berg-Vikeland Grunneierlag SA | Real estate | 1995 |
| BL Investeringsselskap AS | | 2026 |
| Blanda Ved & Virke AS | Agriculture & fishing | 2021 |
| Blomåsveien Gårdslag SA | Real estate | 1983 |
| Bolyst Nord AS | Construction | 2025 |
| Borkenes Sanitær & Varme AS | Construction | 1997 |
| Bremnes Arv Og Poesi Ans | Arts & recreation | 2022 |
| Bygdeveien 24 AS | Real estate | 2010 |
| CONSTRUCTIVE3D AS | Professional & scientific | 2025 |
| Dale Veglag SA | Real estate | 2014 |
| Dalheim Gårdsysteri AS | Manufacturing | 2018 |
| Desoto Technologies AS | Information & communication | 2007 |
| Dog Activities AS | Manufacturing | 2013 |
| DW Eiendom AS | Real estate | 2022 |
| DW Holding North AS | Construction | 2022 |
| DW Snekkerservice AS | Construction | 2017 |
| Dyretransport Nord Ans | Transport & logistics | 2005 |
| Dyrøy Grunneierlag SA | Real estate | 2019 |
| Eidissen Merkantil AS | Professional & scientific | 1998 |
| Ekte Entreprenør AS | Construction | 2017 |
| El-Service AS | Construction | 2004 |
| Elde Moloanlegg SA | Transport & logistics | 1982 |
| Eldevik Industridesign AS | Real estate | 2010 |
| Evensen Bussreiser AS | Transport & logistics | 1996 |
| FHP Anleggsteknikk AS | Construction | 2019 |
| Fiks AS | Construction | 2016 |
| Fjorden Investeringer AS | | 2024 |
| Fjæra Eiendom AS | Real estate | 2020 |
| Fonn Bygg AS | Construction | 1998 |
| Fonn Fisk AS | Agriculture & fishing | 2017 |
| Fresk Invest AS | Real estate | 1990 |
| Geoskog AS | Professional & scientific | 2014 |
| Gevy AS | | 2023 |
| Gåra Næringspark AS | Manufacturing | 2004 |
| Hacon Holding AS | Professional & scientific | 2010 |
| Haconsult AS | Professional & scientific | 2026 |
| Harald Vasseng Holding AS | | 2025 |
| Harstad Apartment AS | Real estate | 2009 |
| Hovslager MJ AS | Agriculture & fishing | 2018 |
| HRH Holding AS | | 2010 |
| Hus Og Utleie AS | Real estate | 2021 |
| Håkonsen Investeringer AS | Manufacturing | 2022 |
| Hålogaland Bygg Og Betong AS | Construction | 2010 |
| Håndverksenteret Eiendom AS | Real estate | 2012 |
| Iglo Entreprenør AS | Construction | 2025 |
| Indre Strand Gårdslag SA | Agriculture & fishing | 1998 |
| Inoriq Eiendom AS | Administrative & support | 2018 |
| Is Eiendom Invest AS | Real estate | 2017 |
| J E H Invest AS | Real estate | 2015 |
| Jentra AS | Transport & logistics | 2021 |
| Jør AS | Real estate | 1991 |
| Karma Services AS | Professional & scientific | 2023 |
| Kjetil Mikalsen AS | Wholesale & retail | 2010 |
| Kjærvik Holding AS | Professional & scientific | 2019 |
| Kompella AS | Real estate | 1990 |
| Kompella Fabrikken AS | Real estate | 2025 |
| Kompella Mottaksdrift AS | Health & social care | 2025 |
| Krumtapp AS | Professional & scientific | 2006 |
| Kvedfjord Fabrikker AS | Real estate | 1918 |
| Kveøy Grendehus Ba | Other services | 1980 |
| Kveøy Og Salen Grunneierlag SA | Agriculture & fishing | 1968 |
| Kveøy Sankelag SA | Agriculture & fishing | 1978 |
| Kvæfjord Grus & Pukk AS | Mining & quarrying | 1992 |
| Kvæfjord Matkultur SA | Wholesale & retail | 2019 |
| Kvæfjord Miljøjord SA | Manufacturing | 2019 |
| Kystkreativ AS | Professional & scientific | 2024 |
| Legeveiledning I Kvæfjord AS | Professional & scientific | 2024 |
| Leikvika Diesel SA | Arts & recreation | 2018 |
| Leikvika Fuel AS | Wholesale & retail | 2017 |
| Leikvika Næringseiendom AS | Real estate | 2003 |
| Leikvika Rorbuer AS | Real estate | 2017 |
| Luna Mat AS | Hospitality | 2024 |
| Martin Fix IT AS | Construction | 2022 |
| Maskinutleie Nord Da | Administrative & support | 2002 |
| Max Dialog AS | Administrative & support | 2013 |
| Meistad Holdning AS | Financial services | 2021 |
| Monteringsteknikk AS | Construction | 2024 |
| Motorhuset Borkenes AS | Other services | 1986 |
| Mp-Invest AS | | 2024 |
| Nordabit Da | Information & communication | 2025 |
| Nyovermalt AS | Real estate | 2025 |
| Olaåsen 4H Mestringsgård AS | Health & social care | 2017 |
| Olaåsen Gård Da | Agriculture & fishing | 2007 |
| Omilia Translations AS | Professional & scientific | 2019 |
| P M E Invest AS | Real estate | 2014 |
| Punn Salen Da | Real estate | 2012 |
| Quinzee AS | Hospitality | 2025 |
| Rebel Harstad AS | Other services | 2023 |
| Refsnes Matglede AS | Hospitality | 2017 |
| Rørnes Kapital AS | | 2026 |
| Saltind AS | Agriculture & fishing | 2020 |