| Fast Eiendom AS | Real estate | 1996 |
| Fi Eiendom AS | Real estate | 2011 |
| Finnmark Forsikringssenter AS | Financial services | 2016 |
| Finnmark Gruppen AS | Real estate | 2022 |
| Finnmark Hydrogen AS | Manufacturing | 2024 |
| Finnmark Productions AS | Information & communication | 2024 |
| Finnmark Taxi AS | Transport & logistics | 1994 |
| Finnmarksrøya AS | Agriculture & fishing | 2015 |
| Finotech AS | Manufacturing | 2018 |
| Fiskebeck Eiendom AS | Real estate | 2012 |
| Fiskebeck Handverk AS | Construction | 1998 |
| Fiskebeck Holding AS | Real estate | 1995 |
| Fiskebeck Prosjekt AS | Professional & scientific | 1997 |
| Fiskebåten AS | Agriculture & fishing | 2014 |
| Flai AS | Information & communication | 2025 |
| Floer Eiendom AS | Real estate | 1999 |
| Floerconsult AS | Professional & scientific | 2026 |
| Focaccia-Blues AS | Manufacturing | 2026 |
| Forny AS | Professional & scientific | 2018 |
| Forny Invest AS | Real estate | 2011 |
| Fotograf Silje L. Kvammen AS | Professional & scientific | 2022 |
| Frank Sjappa Ans | Wholesale & retail | 1996 |
| Fred Holding AS | Real estate | 1988 |
| Fresnel AS | Information & communication | 2022 |
| Frost Holdco AS | | 2019 |
| Frø Arctic AS | Real estate | 2023 |
| Fyllingsveien 6 AS | Real estate | 2013 |
| G Bye Jern og Stållager AS | Real estate | 1984 |
| Galaasen AS | Agriculture & fishing | 2021 |
| Galaasen Forsikringsformidling AS | Financial services | 2024 |
| Garm Holding AS | Real estate | 2020 |
| General Maskin Service AS | Manufacturing | 2024 |
| Gma Holding AS | Real estate | 2019 |
| Grave Og Transporttjeneste Ans | Construction | 1988 |
| Greentech AS | Professional & scientific | 2022 |
| Grenseløs AS | Wholesale & retail | 2004 |
| Grunnøyfisk AS | Agriculture & fishing | 2022 |
| GT Finans 2 AS | Real estate | 2019 |
| Gti Eiendom AS | Real estate | 2006 |
| H Hatle AS | Arts & recreation | 1996 |
| H.Torbjørnsen Invest AS | | 2025 |
| Halabi Hindie AS | Hospitality | 2023 |
| Haldorsen Eiendom AS | Real estate | 2012 |
| Hangaren AS | Real estate | 2025 |
| Hanne Nilsen AS | Other services | 2024 |
| Hans Vægersvei 17 AS | Real estate | 1995 |
| Hans Væggers Vei 15 AS | Real estate | 2019 |
| Hans Væggersvei 11-13 AS | Construction | 1971 |
| Hans Væggersvei 16 AS | Construction | 1996 |
| Hansen Elektriske AS | Construction | 2016 |
| Hartikainen AS | Mining & quarrying | 2026 |
| Hatle-Johannesen Regnskap AS | Professional & scientific | 2004 |
| Havneveien 8 AS | Real estate | 2023 |
| Hebero Invest AS | Real estate | 2014 |
| Helt På Grensa Holding AS | Financial services | 2017 |
| High North Development Group AS | Real estate | 2005 |
| High North Energy AS | Energy | 2023 |
| High North Management AS | Real estate | 2013 |
| High North Quality AS | Wholesale & retail | 2020 |
| Holding Pluss AS | Real estate | 2013 |
| Hurtigruten Barents AS | | 2018 |
| Hurtigruten Sjø AS | Transport & logistics | 2003 |
| HX Crew AS | Transport & logistics | 2021 |
| Interiørverden AS | Wholesale & retail | 1994 |
| Intrahouse Data Centers AS | Information & communication | 2021 |
| Intrahouse Glomfjord AS | Information & communication | 2021 |
| Isobygg Kirkenes AS | Construction | 2017 |
| Iya's Salong AS | Other services | 2025 |
| Jakobsnes Utvikling AS | Real estate | 2015 |
| Jarfjord AS | Administrative & support | 2024 |
| Jarus AS | Transport & logistics | 2004 |
| Jejin AS | Hospitality | 2021 |
| Jentan Eiendom AS | Real estate | 2013 |
| Johan Knudtzens Gate 19 AS | Agriculture & fishing | 2015 |
| Jostein Tørstad AS | Health & social care | 2005 |
| Jsi Installasjon AS | Construction | 2008 |
| Jylid Eiendom AS | Real estate | 2005 |
| K.K. Eiendom AS | Real estate | 2011 |
| Kafe Visit AS | Hospitality | 2016 |
| Kaisvingen 4 AS | Real estate | 2024 |
| Kaisvingen 8 AS | Real estate | 2009 |
| Kaiveien 2 AS | Real estate | 2023 |
| Kajumi Holding AS | | 2023 |
| Kfi Eiendom AS | Real estate | 1999 |
| Kha Eiendom AS | Real estate | 2018 |
| Kielland Torkildsens Gate 1 AS | Real estate | 2014 |
| Kimek AS | Manufacturing | 1986 |
| Kimek Eiendom AS | Real estate | 2017 |
| Kimek Holding AS | Real estate | 2013 |
| Kimek Offshore AS | Mining & quarrying | 2000 |
| Kimek Offshore Resources AS | Mining & quarrying | 2007 |
| Kirkenes Bad & Kjøkken AS | Construction | 1995 |
| Kirkenes Begravelsesbyrå AS | Other services | 2024 |
| Kirkenes Bil AS | Wholesale & retail | 1993 |
| Kirkenes Bolig Eiendom AS | Real estate | 2018 |
| Kirkenes Bygg & Takst AS | Real estate | 2020 |
| Kirkenes Bygg AS | Construction | 2020 |
| Kirkenes Bygg Og Eiendomsutvikling AS | Real estate | 2019 |
| Kirkenes Diving AS | Administrative & support | 2017 |
| Kirkenes Dyreklinikk AS | Professional & scientific | 2024 |