| Kirkenes Elektro AS | Construction | 1997 |
| Kirkenes Fysikalske Institutt AS | Health & social care | 2015 |
| Kirkenes Granitt Ans | Mining & quarrying | 1994 |
| Kirkenes Hud Og Fotklinikk AS | Health & social care | 2013 |
| Kirkenes Husflid AS | Wholesale & retail | 1998 |
| Kirkenes Industrial Logistics Area AS | Transport & logistics | 2004 |
| Kirkenes International Logistics Hub AS | Transport & logistics | 2023 |
| Kirkenes Invest Holding AS | Real estate | 2018 |
| Kirkenes Legesenter AS | Health & social care | 2000 |
| Kirkenes Port Service AS | Transport & logistics | 2024 |
| Kirkenes Regnskapskontor AS | Professional & scientific | 2007 |
| Kirkenes S&S Agency AS | Agriculture & fishing | 2021 |
| Kirkenes Ship Agency AS | Transport & logistics | 2020 |
| Kirkenes Storkjøkken AS | Hospitality | 2017 |
| Kirkenes Sykehus Eiendom AS | Real estate | 2018 |
| Kirkenes Taxi AS | Transport & logistics | 2007 |
| Kirkenes Trading & Supply Service AS | Wholesale & retail | 1983 |
| Kirkenes Transportsentral AS | Transport & logistics | 1997 |
| Kirkenes Trelast AS | Wholesale & retail | 2000 |
| Kirkenes Trelast Eiendom AS | Real estate | 1989 |
| Kirkenesdagene AS | Administrative & support | 2003 |
| Kirkeneskonferansen AS | Administrative & support | 2020 |
| Kirkenesterminalen AS | Transport & logistics | 1996 |
| Kirkenesvannet Eiendom AS | Real estate | 2005 |
| Kiship AS | Transport & logistics | 2010 |
| Kjøkkendrift No 1 Kirkenes AS | Wholesale & retail | 2014 |
| KKN Hvitevareservice Nuf | Wholesale & retail | 2018 |
| KN Eiendom Kirkenes AS | Real estate | 2013 |
| Knut Jakola Transport AS | Transport & logistics | 2007 |
| Kors Helsebemanning AS | Administrative & support | 2022 |
| Kystandeler AS | Real estate | 2026 |
| Kåre Tannvik AS | Professional & scientific | 1991 |
| Langfjordtunet AS | Real estate | 2020 |
| Life Finnmark AS | Wholesale & retail | 2003 |
| Linse AS | | 2005 |
| Lokstallen Kirkenes AS | Real estate | 2021 |
| Luggen AS | Other services | 1993 |
| Lunne Eiendom Da | Real estate | 1999 |
| Läkarjouren AS | Administrative & support | 1991 |
| Lønnbom AS | Real estate | 2001 |
| Ma Tek AS | Construction | 1998 |
| Mai Learning AS | Arts & recreation | 2024 |
| Maks Romanov Holding AS | Real estate | 2021 |
| Mamatoto AS | Real estate | 2004 |
| Marine Nord AS | Administrative & support | 2003 |
| Maritime Industrial Cluster Kirkenes AS | Professional & scientific | 2017 |
| Marius Holding AS | | 2022 |
| MASKINUTLEIER1 AS | Administrative & support | 2025 |
| Me-Invest AS | | 2008 |
| Meierigården Kirkenes AS | Real estate | 2012 |
| Mia Fisk AS | Agriculture & fishing | 2025 |
| Mikalsen Motor AS | Other services | 2007 |
| Mikkola Ventilasjon- Og Blikkenslagerverksted AS | Construction | 1998 |
| Mitas AS | Wholesale & retail | 2017 |
| Mjøsa Energy AS | Information & communication | 2023 |
| Mnilsen Invest AS | | 2026 |
| Moder Nord AS | Manufacturing | 2005 |
| Monord Eiendom AS | Real estate | 2026 |
| Moro Kirkenes AS | Real estate | 2015 |
| Morten Fisk AS | Agriculture & fishing | 2025 |
| Munat AS | Health & social care | 2022 |
| Music Partner Ans | Administrative & support | 1990 |
| Musikkgarasjen AS | Administrative & support | 2002 |
| Mye Tjenester AS | Administrative & support | 2020 |
| Myra Mangesysleri AS | Real estate | 2016 |
| Matsenteret AS | Real estate | 1984 |
| Nexuus Holding AS | Professional & scientific | 2024 |
| Nilsens Regnskap AS | Professional & scientific | 2007 |
| Nor-Mal Ans | Administrative & support | 1990 |
| Nord-Øst AS | Agriculture & fishing | 2026 |
| Nordhus Food Truck AS | Hospitality | 2019 |
| Nordica AS | Wholesale & retail | 1999 |
| Nordvent AS | Manufacturing | 1995 |
| Norsk Test AS | Information & communication | 2001 |
| Norway Catch AS | Agriculture & fishing | 2017 |
| Norway King Crab Sales AS | Wholesale & retail | 2018 |
| Nsbeauty AS | Other services | 2024 |
| Nye Basilica Cafe & Restaurant AS | Hospitality | 2019 |
| Nye JRH Invest AS | Transport & logistics | 2021 |
| Nye Parnasset Invest AS | Real estate | 2023 |
| Nye Rundkjøringa AS | Real estate | 2019 |
| Norvakt Kirkenes A/S | Administrative & support | 1988 |
| Oah Service AS | Construction | 2024 |
| Ocean Carbon Exchange AS | Professional & scientific | 2022 |
| Ofelas AS | Hospitality | 2000 |
| Optima Shadow Power AS | Professional & scientific | 2025 |
| Oshaugs Tjenester AS | Other services | 2021 |
| Pacific Salmon AS | Manufacturing | 2022 |
| Pajussi Norge AS | Transport & logistics | 2025 |
| Pan Import Export Da | | 1993 |
| Par 39 AS | Real estate | 2005 |
| Parnasset Invest AS | Real estate | 2013 |
| Pasvikturist AS | Administrative & support | 2008 |
| Pedersen Elektro AS | Construction | 1989 |
| Pikene På Broen AS | Arts & recreation | 2001 |
| Pluss Eiendom AS | Real estate | 2003 |
| Pobedit AS | Wholesale & retail | 2017 |
| Polar Experience AS | Hospitality | 2026 |
| Polarhus AS | Construction | 2015 |
| Prestefjellet Barnehage AS | Education | 1991 |