| Norwegian Eye AS | Administrative & support | 2017 |
| Ntu Arktis AS | Professional & scientific | 2021 |
| Nyboloft Byggevare AS | Wholesale & retail | 2016 |
| Nyboloft Entreprenør AS | Construction | 2002 |
| Nytt Firma AS | Professional & scientific | 2023 |
| Nyvoll Foto AS | Professional & scientific | 2024 |
| O-K Hanssen Eiendom AS | Real estate | 2021 |
| O. Nilsen A/S | Wholesale & retail | 1983 |
| O.M. Rønning Skipselektronikk Nuf | Wholesale & retail | 2006 |
| Odd Fellow Huset AS | Real estate | 1997 |
| Oddbjørn Holding AS | | 2021 |
| Orange Holding AS | Real estate | 2015 |
| Osm Forvalting AS | Real estate | 2021 |
| Osm Holding AS | Real estate | 2012 |
| Oü Spex Nuf | Construction | 2008 |
| Pathas Holding AS | | 2024 |
| Pedersen Bygg Og Mur AS | Construction | 2024 |
| Periferi Da | Information & communication | 1995 |
| Piungen AS | Agriculture & fishing | 2018 |
| Planinsitu AS | Professional & scientific | 2022 |
| Planting Holding AS | | 2025 |
| Planting Kystfiske AS | Agriculture & fishing | 2024 |
| Polarnatt Film AS | Information & communication | 2022 |
| Polarnatt Media AS | Information & communication | 2018 |
| Polartek AS | Professional & scientific | 2025 |
| Polen Reiser AS | Administrative & support | 2016 |
| Porsa Kraftlag AS | Energy | 1956 |
| Presis Eiendom AS | Real estate | 2009 |
| Printhuset AS | Manufacturing | 2003 |
| Pro Barents AS | Professional & scientific | 2002 |
| Proconsult AS | Professional & scientific | 2020 |
| Propet AS | Wholesale & retail | 2024 |
| Propretario Invest AS | Professional & scientific | 2020 |
| Prosjekt Og Drift AS | Professional & scientific | 2016 |
| Prærien Lavpris AS | Wholesale & retail | 1998 |
| Psykologspesialist Malin Fors AS | Health & social care | 2021 |
| På Hjørne Burgerhuset AS | Hospitality | 2021 |
| På Hjørne Eiendom AS | Real estate | 2003 |
| R-Hansen AS | Agriculture & fishing | 2023 |
| Randi Blix AS | | 2020 |
| Raw Studios AS | Information & communication | 2023 |
| Redning Og Kran Service AS | Transport & logistics | 2022 |
| Rentalcare Norge AS | Administrative & support | 2021 |
| Riktig Tall AS | Professional & scientific | 2017 |
| Ringveien 71 B Tromsø AS | Real estate | 2019 |
| Risvåg Holding AS | | 2022 |
| Risvågveien Utleiebygg Ans | Real estate | 1998 |
| Robstrøm Gruppen AS | Real estate | 2024 |
| Ronald Aslaksen AS | Professional & scientific | 2008 |
| Rossmolla Eiendom AS | Real estate | 2000 |
| Rossmollgata 86 AS | Real estate | 2011 |
| Rune Kjønsvik AS | Health & social care | 2001 |
| Rusteksperten AS | Manufacturing | 2018 |
| Rypefjord Marina AS | | 2008 |
| Rønning Skipselektronikk AS | Wholesale & retail | 2023 |
| Rørlegger Berntsen AS | Construction | 1991 |
| Rørlegger Berntsen Eiendom AS | Real estate | 2016 |
| Rørtek Hammerfest AS | Construction | 2022 |
| Rørtek Hammerfest Eiendom AS | Real estate | 2024 |
| Rørtek Holding AS | Construction | 2022 |
| Rørtek Holding AS | | 2026 |
| Sakaya Eiendom AS | Real estate | 2012 |
| Sakaya Hammerfest AS | Hospitality | 2012 |
| Salsa Salong AS | Other services | 2006 |
| Salsgata 16 AS | Real estate | 2012 |
| Samibooking AS | Administrative & support | 2024 |
| Samsa Service AS | Professional & scientific | 2023 |
| Scanar AS | Transport & logistics | 1994 |
| Scanfish Norway AS | Wholesale & retail | 2000 |
| Seilmakeren Hammerfest AS | Manufacturing | 2015 |
| Selskap 1 Holding AS | Real estate | 2024 |
| SGS Holding AS | Real estate | 2006 |
| Si Isaksen Holding AS | Professional & scientific | 2018 |
| Sigmakon AS | Financial services | 2014 |
| Sjøgata 21 Hammerfest AS | Real estate | 2025 |
| Sjøgata 6-3 AS | Real estate | 2002 |
| Sjøgata 6-4 AS | Real estate | 2002 |
| Sjøgata 8-10 AS | Real estate | 2012 |
| Sjøgata Dagligvare AS | Wholesale & retail | 2016 |
| Sjøgren Gjenvinning AS | Water & waste | 2008 |
| Sjøgren Service AS | Administrative & support | 2022 |
| Skansen Holding Hammerfest AS | Financial services | 2005 |
| Skjerven Holding AS | Professional & scientific | 2014 |
| Skytterhuset Innkvartering AS | Hospitality | 2019 |
| Smartbigbag Solutions AS | Professional & scientific | 2024 |
| Smarthotel Hammerfest AS | Hospitality | 2014 |
| Smfp Holding AS | | 2026 |
| Smågodt Fra Trine AS | Wholesale & retail | 2007 |
| Sommerfryd 1 AS | Real estate | 2022 |
| Sommerro Investering AS | | 2021 |
| Sot Hammerfest AS | Hospitality | 2018 |
| Spesialistlege M. Sherif AS | Health & social care | 2025 |
| ST Elisabeth AS | Real estate | 2002 |
| Stellaris Dansteater AS | Arts & recreation | 1994 |
| Step in Frisør Hammerfest AS | Other services | 2019 |
| Sterk Vekst AS | Information & communication | 2023 |
| Stockfish Holding AS | Real estate | 2008 |
| Storgata 23 Hammerfest AS | Real estate | 2017 |
| Storm Utleie AS | Real estate | 2025 |
| Storm Ventures AS | Real estate | 2021 |