| Gunnar Eriksen AS | Real estate | 1987 |
| H K Sørensen AS | Construction | 1987 |
| H.D. Eidissen Eiendom AS | Real estate | 2013 |
| H.D. Eidissen Regnskapskontor AS | Professional & scientific | 1997 |
| Hagensen Holding AS | Construction | 2025 |
| Hako Invest AS | Construction | 2006 |
| Handarbeidsstua AS | Wholesale & retail | 1999 |
| Hanssen Handverkerservice AS | Construction | 2012 |
| Hanssen Og Myrbakk Holding AS | Real estate | 2011 |
| Hara Eiendom AS | Real estate | 2014 |
| HBK Holding AS | | 2025 |
| Heaven Norge AS | Hospitality | 2022 |
| Heim Og Pedersen Da | Wholesale & retail | 2002 |
| Heimbo AS | Real estate | 1999 |
| Hel Invest AS | Financial services | 2005 |
| Helgesen Invest Finnsnes AS | Professional & scientific | 2026 |
| Helgesen Maskin AS | Administrative & support | 2026 |
| Helsehuset Midt Troms AS | Real estate | 2016 |
| Hersvik 6 AS | Real estate | 2021 |
| Hompen AS | Construction | 2026 |
| Hotell Skansen AS | Hospitality | 2002 |
| HTR Transport AS | Transport & logistics | 2023 |
| HUDPLEIER1 AS | Other services | 2013 |
| Hugen Holding AS | | 2023 |
| Humint AS | Real estate | 1996 |
| Idéhuset Artic Quilter AS | Wholesale & retail | 2000 |
| In Decor AS | Other services | 2018 |
| Ina Moor AS | Education | 2022 |
| Ina Moor Holding AS | Education | 2024 |
| Inordeiendom AS | Real estate | 2023 |
| Intersport Finnsnes AS | Wholesale & retail | 1976 |
| Ira Multiservice AS | | 2019 |
| Ironwood AS | Financial services | 2014 |
| Isabel Richardsen AS | Wholesale & retail | 2026 |
| J.J Djupvik Holding AS | | 2025 |
| Jactt Holding AS | Administrative & support | 2021 |
| Jah Finanser AS | Agriculture & fishing | 2016 |
| Jakob Eiendom AS | Real estate | 1997 |
| Jakob Invest 1 AS | Real estate | 2007 |
| Jakob Invest 2 AS | Real estate | 2007 |
| Jamo Invest Nord AS | Other services | 2021 |
| Jats AS | Real estate | 2005 |
| Jenkon AS | Professional & scientific | 2012 |
| JHV Multiservice AS | Construction | 2021 |
| Jie Holding AS | Wholesale & retail | 2017 |
| Jim Lothar Jenssen Nuf | Health & social care | 2009 |
| JLB Partner AS | Health & social care | 2026 |
| JM Service Marine AS | Manufacturing | 2024 |
| JMW Holding AS | | 2019 |
| Jo Byggmontasje AS | Construction | 2005 |
| Jo-Inge Invest AS | Real estate | 2008 |
| Johannas Ur Og Optikk AS | Wholesale & retail | 2009 |
| Johansen Fiskeprodukter AS | Wholesale & retail | 2015 |
| Johansen Gruppen AS | | 2025 |
| Joko-Eiendom AS | Real estate | 2019 |
| Jotobe Finanser AS | Financial services | 2005 |
| JR Consult AS | Professional & scientific | 2010 |
| Juda Ben Hur AS | Agriculture & fishing | 2022 |
| Juniorfood AS | Hospitality | 2016 |
| Jø Eiendom AS | | 2026 |
| K. Abrahamsen AS | | 2022 |
| K. Pettersen AS | Construction | 2012 |
| Kai - Kanten Invest AS | Real estate | 2026 |
| Karlsen På Taket AS | Administrative & support | 2026 |
| Kato Invest AS | | 2023 |
| Kelmer AS | Professional & scientific | 2005 |
| Kelmer Invest AS | | 2026 |
| Keneth Larsen Holding AS | Agriculture & fishing | 2018 |
| KHS Holding AS | Professional & scientific | 1987 |
| Kick Finnsnes Trening Og Helse AS | Arts & recreation | 2015 |
| Kime Akva AS | Agriculture & fishing | 2020 |
| Kings Food AS | Hospitality | 2024 |
| Kiropraktorklinikken Finnsnes AS | Health & social care | 1999 |
| Kittelsen Og Martinussen Data Service Ans | Wholesale & retail | 1999 |
| KJ Invest AS | Wholesale & retail | 2005 |
| Kjøkkenteam Finnsnes AS | Wholesale & retail | 2019 |
| Kjøleservice AS | Construction | 2020 |
| Klaustad Transport AS | Transport & logistics | 2006 |
| Klinisk Pedagog Kristin Jakobsen AS | Health & social care | 2013 |
| KM Handel AS | Wholesale & retail | 2015 |
| KM Proff Bygg AS | Construction | 2021 |
| Knar Utleie Ans | Administrative & support | 2000 |
| Krissa AS | | 2023 |
| Kunnskapsparken Senja AS | Real estate | 2019 |
| Kurs I Helse AS | Education | 2021 |
| KVAMM1 AS | Professional & scientific | 2025 |
| Kveldro Holding AS | | 2020 |
| Kvistad Eiendom AS | Real estate | 1993 |
| Kvistad Holding AS | Real estate | 2005 |
| Kvittinden Holding AS | | 2007 |
| Kårvikhamn Båtforening Ba | Arts & recreation | 2009 |
| Laukhelle Lakselva SA | Other services | 1950 |
| Leiknes AS | Professional & scientific | 1986 |
| Leiknes Granheim AS | Real estate | 2021 |
| Leiknes Holding AS | | 2008 |
| Lenvik Billakkering AS | Other services | 2004 |
| Lenvik Frivilligsentral SA | Health & social care | 2007 |
| Lenvikhalvøya Beitelag SA | Agriculture & fishing | 1976 |
| Les Amis Konditori AS | Hospitality | 2026 |
| Lga Invest AS | Professional & scientific | 2008 |