| Skogli Takst Og Byggeledelse AS | Real estate | 2017 |
| Skogsøya Invest AS | Real estate | 2020 |
| Skåltofta Eiendom AS | Real estate | 2009 |
| Smart Sikkerhetssystem AS | Construction | 2025 |
| Smykkeskrinet AS | Wholesale & retail | 2011 |
| Snarset Invest AS | | 2020 |
| Sofie Marie AS | Agriculture & fishing | 2023 |
| Sommarøy Kystfiske AS | Agriculture & fishing | 2016 |
| Sommarøy Redskapslager AS | Real estate | 2013 |
| Sommarøy Utleie AS | Real estate | 2012 |
| Spiny Seafoods AS | Agriculture & fishing | 2021 |
| Sputnik Kystfiske AS | Agriculture & fishing | 2009 |
| SS Eiendomsutvikling Ans | Real estate | 2006 |
| Staven Eiendom AS | Real estate | 2019 |
| Staven Grus AS | Mining & quarrying | 2020 |
| Stavtinden Holding AS | Mining & quarrying | 2018 |
| Stavøy & Kvernø Transport Ans | Wholesale & retail | 1992 |
| Stedet AS | Hospitality | 2003 |
| Steffensen Eiendom AS | Real estate | 2009 |
| Steffensen Kystfiske AS | Agriculture & fishing | 2011 |
| Steinlandsfjord Vannverk SA | Water & waste | 2010 |
| Sterk Kuling AS | Hospitality | 2008 |
| Stig a. Johnsen AS | Agriculture & fishing | 2011 |
| Stig Lind Eiendom AS | Real estate | 1990 |
| Stil Og Farger Ans | | 1990 |
| Stolsen AS | Professional & scientific | 2008 |
| Storgata 43 AS | Real estate | 2011 |
| Storgata 45 AS | Real estate | 2010 |
| Storgata 52 AS | Real estate | 2014 |
| Strengelvåg Og Vedhøggan Utmarkslag SA | Real estate | 1987 |
| Strengelvåg Vannlag SA | Water & waste | 1958 |
| Strækka Eiendom AS | Real estate | 2022 |
| Studio Kotte AS | Professional & scientific | 2015 |
| Ståle Danielsen AS | Construction | 2016 |
| Ståle Nilsen Eiendom AS | Real estate | 2012 |
| Stø Kystfiske AS | Agriculture & fishing | 2024 |
| Sue Holding AS | | 2025 |
| Sundberg Førstehjelp & Brannvern AS | Education | 2025 |
| SVK346 AS | Financial services | 2018 |
| Sørdahl Eiendom AS | Real estate | 1996 |
| Sørholmen AS | Agriculture & fishing | 2011 |
| Ted Endresen Holding AS | Agriculture & fishing | 2005 |
| Tom Grande Holding AS | Agriculture & fishing | 2005 |
| Torskefisk AS | Agriculture & fishing | 2017 |
| Trollskogen Barnehage SA | Education | 2003 |
| Trond Stavøy Holding AS | | 2021 |
| TT Eiendom Myre AS | Real estate | 2025 |
| Tt-Holding AS | Real estate | 2020 |
| Tømrer Tor-Inge Hansen AS | Construction | 2023 |
| V.E Invest AS | | 2025 |
| Valhøgda Invest AS | Professional & scientific | 2008 |
| Vask Og Renhold MCH AS | Administrative & support | 2024 |
| Vertsbrygge Eiendom AS | Real estate | 2020 |
| Vesteng AS | Real estate | 1996 |
| Vesteralen Seafood AS | Wholesale & retail | 2021 |
| Vesterålen Bilberging AS | Transport & logistics | 2000 |
| Vesterålen Fishing AS | Arts & recreation | 2015 |
| Vesterålen Havbruk AS | Agriculture & fishing | 2012 |
| Vesterålen Havbruk Produksjonslag AS | Manufacturing | 1990 |
| Vesterålen Havbruk Statt AS | Agriculture & fishing | 2023 |
| Vesterålen Holding AS | | 2005 |
| Vesterålen Industripark AS | Real estate | 2023 |
| Vesterålen Lagerutleie AS | Real estate | 2022 |
| Vesterålen Laserrens AS | Administrative & support | 2026 |
| Vesterålen Logopedi AS | Health & social care | 2016 |
| Vesterålen Lyd AS | Administrative & support | 2019 |
| Vesterålen Multiservice AS | Construction | 2023 |
| Vesterålen Olje Eiendom AS | Real estate | 2010 |
| Vesterålen Sceneutleie AS | Administrative & support | 2022 |
| Vesterålen Seaweed AS | Agriculture & fishing | 2016 |
| Vesterålen Skogsdrift AS | Agriculture & fishing | 2015 |
| Victoriafisk AS | Agriculture & fishing | 2015 |
| Visit Øksnes AS | Administrative & support | 2016 |
| Vornes Kystfiske AS | Agriculture & fishing | 2012 |
| Vottestad Rådgivning AS | Professional & scientific | 2021 |
| Vågen Eiendom AS | Real estate | 2017 |
| Vågen Eiendom Service AS | Construction | 2023 |
| Wi to Nilsen & Co Ans | Wholesale & retail | 1984 |
| Woies Blomster AS | Wholesale & retail | 2003 |
| Woies Eiendom AS | Real estate | 1994 |
| Xl-Bygg Myre AS | Wholesale & retail | 2018 |
| Åsen Felleseie SA | Real estate | 2025 |
| Økonomiservice Nor AS | Professional & scientific | 2006 |
| Økoråd Øksnes AS | Professional & scientific | 2005 |
| Øksnes 8-9-10 AS | | 2026 |
| Øksnes Begravelsesbyrå AS | Other services | 2003 |
| Øksnes Bil & Maskin AS | Other services | 1988 |
| Øksnes Elektro AS | Construction | 1989 |
| Øksnes Entreprenør AS | Construction | 1996 |
| Øksnes Entreprenør Eiendom AS | Real estate | 1997 |
| Øksnes Flis & Mur AS | Construction | 2016 |
| Øksnes Handel AS | Wholesale & retail | 2023 |
| Øksnes Invest AS | Professional & scientific | 1995 |
| Øksnes Kystfiske AS | Agriculture & fishing | 2002 |
| Øksnes Møbelsenter AS | Wholesale & retail | 2019 |
| Øksnes Osteopati, Trening AS | Education | 2024 |
| Øksnes Utleie AS | Real estate | 2011 |
| Øksnes Vekst AS | Health & social care | 1992 |
| Øksnesavisa AS | Information & communication | 1996 |
| Øksnesfisk AS | Agriculture & fishing | 2026 |