| Odd Jensen Snekkerier AS | Manufacturing | 2000 |
| Oddvar Andreassen Og Sønner AS | | 2025 |
| Ot Lador AS | | 2025 |
| Ot Oceanium AS | | 2025 |
| Ot Stella Polaris AS | | 2025 |
| Ove Schei Live AS | Arts & recreation | 2015 |
| Ove Schei Ressurs AS | Transport & logistics | 2018 |
| Pawel Slawinski Bygg AS | Construction | 2023 |
| Pawel Slawinski Renovering AS | Construction | 2026 |
| Pc-I AS | Administrative & support | 2023 |
| Pernova AS | | 2020 |
| Pernova Holding AS | | 2020 |
| Perpetum AS | Professional & scientific | 2007 |
| Petrie Wines AS | Wholesale & retail | 2025 |
| Plug Hadsel AS | Energy | 2022 |
| Polar Oil AS | Real estate | 2020 |
| Polaris Seafood AS | Wholesale & retail | 2019 |
| Polaris Systems AS | Information & communication | 2026 |
| Preben Jensen AS | Construction | 2021 |
| Premium Eiendom AS | Real estate | 2018 |
| Premium Utleie AS | Administrative & support | 2022 |
| Priority Cargo AS | Transport & logistics | 2014 |
| Quality Hotel Richard With AS | Hospitality | 2020 |
| Quality Nursing Care AS | Health & social care | 2025 |
| R Antonsen AS | Other services | 2024 |
| Raften-Dalveien SA | Construction | 2016 |
| Ramsevik AS | | 2023 |
| Ranværingskvartalet AS | Real estate | 1994 |
| RBM Invest AS | Professional & scientific | 2021 |
| Real Sortland AS | Construction | 2026 |
| Realbygg Sortland AS | Construction | 2012 |
| RHB Invest AS | | 2019 |
| RK Nordheim AS | Professional & scientific | 2025 |
| Robin Bergvik-Andersen AS | Wholesale & retail | 2023 |
| Robin Hovind AS | | 2022 |
| RT Huset AS | Real estate | 2025 |
| Ryt Invest AS | Real estate | 2016 |
| Rødbrygga AS | Hospitality | 1989 |
| Rødbrygga Drift AS | Hospitality | 2006 |
| Rørlegger Otto Harry Olsen AS | Construction | 2004 |
| Rørvakta AS | Construction | 2004 |
| Røsnesvåg AS | Agriculture & fishing | 2014 |
| Saetran Ltd Nuf | Professional & scientific | 2022 |
| Salong Aurora AS | Other services | 2025 |
| Salong Saxo Hadsel AS | Other services | 2017 |
| Sanitær & Varme AS | Construction | 1991 |
| Sentrum TRAFIKKSKOL1 AS | Education | 2020 |
| Sentrum Ur & Smykker AS | Wholesale & retail | 2006 |
| SH Vedlikehold AS | Administrative & support | 2026 |
| Siber AS | | 2019 |
| Sivilingeniør Bård Sørensen AS | Professional & scientific | 2003 |
| SMH Lager AS | Transport & logistics | 2025 |
| SMH Produksjon AS | Energy | 2025 |
| SN Rør AS | Construction | 2020 |
| Sofheim Holding AS | Health & social care | 2018 |
| Soh Eiendom AS | Real estate | 2022 |
| Solheim Barnehage SA | Education | 1989 |
| Spyleteknikk AS | Construction | 2022 |
| SR Driftservice AS | Administrative & support | 2026 |
| Starvault AS | | 2025 |
| Stian Haug AS | Construction | 2021 |
| Stiby Seafood AS | Wholesale & retail | 2025 |
| Stokmarknes Aktietrykkeri | Wholesale & retail | 1895 |
| Stokmarknes Autosenter AS | Wholesale & retail | 2013 |
| Stokmarknes Byggrenovering AS | Construction | 2020 |
| Stokmarknes Miljøhavn AS | Real estate | 2022 |
| Stokmarknes Rengjøring AS | Administrative & support | 2012 |
| Stokmarknesbygget AS | Real estate | 2017 |
| Storheia Arena Drift AS | Administrative & support | 2023 |
| Storholmen Eiendom AS | Real estate | 2005 |
| Stålberget Eiendom AS | Real estate | 2017 |
| Stålberget Entreprenør AS | Construction | 2021 |
| Subsea Nor AS | Administrative & support | 2001 |
| Søndre Gate 32-34 AS | Real estate | 2022 |
| Tannlege Markus Norlunn Fredriksen AS | Health & social care | 2022 |
| Teigan AS | Agriculture & fishing | 2021 |
| Teneo AS | Information & communication | 2022 |
| Teneo Digital AS | Information & communication | 2002 |
| Thsb AS | | 2019 |
| Trollfjord AS | Real estate | 2015 |
| Trollfjord Eiendom AS | Real estate | 2024 |
| Trollfjord Fiber AS | Information & communication | 2022 |
| Trollfjord Ikt Senter AS | Information & communication | 2013 |
| Trykkerigaarden AS | Wholesale & retail | 2006 |
| Trykkmann Eiendom AS | Real estate | 1995 |
| Trykkmann Profil AS | Manufacturing | 2019 |
| Tumlebo Barnehage SA | Education | 1989 |
| Tunnel Safety System AS | Professional & scientific | 2018 |
| Turistsenteret Eiendom AS | Real estate | 1997 |
| Tverrelva Ltd Nuf | Professional & scientific | 2022 |
| Tveters Fysioterapi AS | Health & social care | 2021 |
| Tømmervikgruppen AS | Real estate | 1987 |
| Urtehaven Eiendom AS | Real estate | 2017 |
| Velo Renewable AS | Professional & scientific | 2024 |
| Vernebygg AS | Real estate | 2018 |
| Vesterålen Bad Og Bygg AS | Construction | 2022 |
| Vesterålen Byggeservice AS | Construction | 1997 |
| Vesterålen Fritid | Wholesale & retail | 2009 |
| Vesterålen Havneservice AS | Transport & logistics | 2023 |
| Vesterålen Invest AS | Administrative & support | 2020 |