| Nordland Bilopphugging AS | Wholesale & retail | 1993 |
| Nordlo Nord AS | Information & communication | 2023 |
| Norgesbygg AS | Construction | 2014 |
| Norkarlo Bygg AS | Construction | 2025 |
| Norsk Transportindustri AS | Professional & scientific | 1990 |
| Norwegian Rose AS | Mining & quarrying | 2000 |
| Norx Solution AS | Manufacturing | 2026 |
| Notkevich Holding AS | | 2024 |
| Nouri Alwan Marine Surveyors and Consultancy AS | Professional & scientific | 2021 |
| Ny Sveis Eiendom AS | Real estate | 2024 |
| Nye Parken Kafe AS | Hospitality | 2019 |
| Ocean Snacks AS | Manufacturing | 2018 |
| Odd Fellowhuset Fauske AS | Real estate | 2016 |
| Ojb AS | | 2019 |
| Omn Fysioterapi Bugge Strømsnes AS | Health & social care | 2014 |
| Opplæringskontoret for Energifag AS | Education | 2012 |
| Orlando Bar&Grill AS | Hospitality | 2017 |
| Orsle AS | Real estate | 2018 |
| P-C Stenhammer AS | Health & social care | 2019 |
| Parken Frisør AS | Other services | 2015 |
| Partrederiet Bjørnsvik Ans | Agriculture & fishing | 1995 |
| Patryk Holding AS | | 2023 |
| Paulsen Eiendom Og Utleie AS | Real estate | 2022 |
| Payback Lubricants Norge AS | Wholesale & retail | 2015 |
| PGH Bygg AS | Construction | 2020 |
| PGH Eiendom AS | Real estate | 2020 |
| PGH Equipment AS | Wholesale & retail | 2021 |
| PGH Holding AS | Real estate | 2018 |
| Pinestone AS | Professional & scientific | 2021 |
| Pixel Eiendom AS | Real estate | 2026 |
| Pixels AS | Real estate | 2005 |
| Pluvialis AS | | 2024 |
| Polarvakt AS | Administrative & support | 1998 |
| Polarvakt Eiendom AS | Administrative & support | 2002 |
| Polarvakt Holding AS | Administrative & support | 2005 |
| POWER4YOU AS | Administrative & support | 2019 |
| Proffteknikk AS | Wholesale & retail | 2010 |
| Proffteknikk Eiendom AS | Real estate | 2012 |
| Profiloffice AS | Professional & scientific | 1997 |
| Prosjekt Nord AS | Real estate | 2021 |
| Recogito AS | Information & communication | 2008 |
| Refvik Eiendom AS | Real estate | 2005 |
| Regnskap Nord AS | Professional & scientific | 1994 |
| Regnskapsinvest AS | Professional & scientific | 2007 |
| Ris & Ro Restaurant AS | Hospitality | 2025 |
| RMT Holding AS | Financial services | 2020 |
| Ronny Bringsli AS | Manufacturing | 2006 |
| RR Byggservice AS | Construction | 2018 |
| Rugås Industrier AS | Real estate | 2011 |
| Rødås Vannverk SA | Water & waste | 1980 |
| Rørdrift Invest AS | Real estate | 2007 |
| Rørleggern Fauske AS | Construction | 2001 |
| S H Møller AS | Real estate | 2019 |
| SA Technic Da | Professional & scientific | 2009 |
| Sagelva Invest AS | | 2026 |
| Salemonsen Holding AS | | 2026 |
| Salt Eiendom AS | Real estate | 2018 |
| Salten Aqua AS | Wholesale & retail | 2000 |
| Salten Auto AS | Other services | 2021 |
| Salten Bilberging AS | Transport & logistics | 2013 |
| Salten Bolig AS | Real estate | 2018 |
| Salten Cargo AS | Transport & logistics | 2011 |
| Salten Drift Og Vedlikehold AS | Construction | 2008 |
| Salten Kraftsamband AS | Energy | 2003 |
| Salten Skogservice AS | Agriculture & fishing | 1998 |
| Salten Stamfisk AS | Agriculture & fishing | 2007 |
| Salten Synssenter AS | Wholesale & retail | 2001 |
| Salten Tech AS | Information & communication | 2023 |
| Salten Transportsentral AS | Transport & logistics | 1988 |
| Salten Trevarefabrikkers Andelslag Ba | Manufacturing | 1999 |
| Salten Zoo AS | Wholesale & retail | 2023 |
| Saltenposten AS | Information & communication | 1996 |
| Sas-Holding AS | | 2019 |
| Saulo AS | | 2022 |
| SBP Hyttebygg AS | Construction | 2023 |
| Scsi AS | Hospitality | 2014 |
| Seal Nord AS | Real estate | 2025 |
| Sentralskoletomta AS | Real estate | 2025 |
| Serkon Service & Utleie AS | Administrative & support | 2015 |
| Sesa AS | | 2020 |
| Setmek AS | Manufacturing | 2021 |
| Sirma Holding AS | Information & communication | 2023 |
| Sisovasshytta SA | Administrative & support | 2006 |
| Siv.Ing. A.Nygård AS | Professional & scientific | 1995 |
| Sjøgata 60 AS | Real estate | 2019 |
| Sjøgata 70 Fauske AS | Real estate | 2018 |
| Sjøgata 74 AS | | 2025 |
| Sk.Invest AS | Professional & scientific | 2017 |
| Skippergata Fauske AS | Real estate | 2008 |
| Skogholt Fauske Begravelsesbyrå AS | Other services | 2002 |
| Skogholt Gartneri AS | Wholesale & retail | 1990 |
| Skogvoll Holding AS | | 2025 |
| Skogvoll Invest AS | Real estate | 2026 |
| SKS Handel AS | Energy | 2003 |
| SKS Produksjon AS | Energy | 1975 |
| SKS Vindkraft AS | | 2024 |
| Skyfitness Fauske AS | Arts & recreation | 2017 |
| Skår Eiendom AS | Real estate | 2001 |
| Skøtnes Holding AS | Financial services | 2015 |
| Sletta Invest AS | | 2022 |