| Farmtec AS | Wholesale & retail | 2025 |
| Fgmm Invest AS | | 2022 |
| Fiane Snekkertjenester AS | Construction | 2020 |
| Fire Gutter AS | Real estate | 2024 |
| Fiskebeinparkett AS | Construction | 2007 |
| Fjellheim Anlegg AS | Construction | 2005 |
| Fjellheim Eiendom AS | Real estate | 1990 |
| Fjord Senteret AS | Wholesale & retail | 1985 |
| Flislegger Nicolas Maier AS | Construction | 2025 |
| Flora Joar Mathisen Oddbjørg Mathisen Leif-Tore Langmyrlia Ans | Wholesale & retail | 1990 |
| Forvaltning Og Drift AS | Administrative & support | 2026 |
| Fritz Smithsgate 7 AS | Real estate | 2011 |
| Fusion of Asia, HTN AS | Hospitality | 2011 |
| Gammf Holding AS | | 2025 |
| Gardermoenmessa AS | Administrative & support | 2014 |
| Gastro Vin AS | Wholesale & retail | 1996 |
| Geir Byvold Holding AS | Real estate | 2012 |
| Gjeving Innvest AS | Real estate | 2025 |
| Gjeving Trevarefabrikk AS | Manufacturing | 2002 |
| Glastadheia Utbyggingsselskap AS | Real estate | 2006 |
| Glenn Lindland Holding AS | | 2020 |
| Glitretinn AS | Professional & scientific | 2022 |
| Global Nest Family AS | Professional & scientific | 2024 |
| Goderstad Eiendom AS | Real estate | 2012 |
| Godt Håndverk AS | Construction | 2003 |
| Goutbeek AS | Professional & scientific | 2013 |
| Greenphones AS | Wholesale & retail | 2012 |
| Grendstøl Industribygg AS | Real estate | 1987 |
| Grenstøl Gulv Og Maling AS | Construction | 2023 |
| Grenstøl Minilager Og Eiendom AS | Real estate | 2022 |
| Grenstøl Næringsbygg AS | Real estate | 2022 |
| GT Automotive AS | Wholesale & retail | 2020 |
| GT Automotive Invest AS | Real estate | 2021 |
| GT Invest & Holding AS | | 2022 |
| Gullsmed Jensens Eftf. AS | Wholesale & retail | 2013 |
| Guttormsen Kalk & Anlegg AS | Construction | 2005 |
| H Lunde Eiendom AS | Real estate | 2021 |
| H O S Eiendom AS | Real estate | 2018 |
| H2-SUPPLY AS | Professional & scientific | 2017 |
| Haagensli AS | Wholesale & retail | 2013 |
| Hagbarts Hus AS | Real estate | 2016 |
| Hagefjorden Brygge AS | Real estate | 2011 |
| Hageli T Holding AS | | 2021 |
| Halve Holding AS | Real estate | 2022 |
| Happytime Tvedestrand AS | Hospitality | 2026 |
| Haraldsen Transport AS | Transport & logistics | 2019 |
| Hatch Nordic AS | | 2023 |
| Hauglid Data AS | Wholesale & retail | 2013 |
| Hellig Holding AS | Real estate | 2024 |
| Helseklinikken Sør AS | Health & social care | 2025 |
| Herco Eiendom AS | Manufacturing | 2007 |
| Hesnesvegen Veglag Vidar Holm SA | Construction | 1997 |
| Heståsen AS | Real estate | 2018 |
| HHH Invest AS | Real estate | 2022 |
| Hinkel Invest AS | | 2021 |
| Hirschel-Haag Holding AS | | 2025 |
| Hissig Invest AS | Financial services | 2021 |
| Hissig Nettbutikker AS | Wholesale & retail | 2022 |
| Hold På AS | | 2022 |
| Holding - on AS | Real estate | 1996 |
| Holt Gartneri AS | Agriculture & fishing | 2012 |
| Hovedgata 30 AS | Real estate | 2017 |
| Hovedgata 38 Og 40 AS | Real estate | 2024 |
| Hovedgata 54 AS | Real estate | 2018 |
| HRM Consult AS | Professional & scientific | 2005 |
| HTN Eiendom 72 AS | Real estate | 2022 |
| Hypertech Da | Wholesale & retail | 2008 |
| Holmen AS | Manufacturing | 1984 |
| Håndverkservice Tvedestrand AS | Construction | 2012 |
| Hånes Utvikling AS | Real estate | 2012 |
| Højen AS | Manufacturing | 2005 |
| Høyde AS | Wholesale & retail | 2013 |
| I.A.Vik AS | Professional & scientific | 2013 |
| Ikm Safe Control AS | Professional & scientific | 1996 |
| Infraparken AS | Real estate | 2019 |
| Innotre Utvikling AS | Professional & scientific | 2023 |
| J & a Fokkens Consulting AS | Professional & scientific | 2005 |
| J K Løvdal Eiendom AS | Real estate | 2021 |
| J K Løvdal Holding AS | Construction | 2021 |
| JL Sveis Og Byggtjenester AS | Manufacturing | 2022 |
| Johansen Drifting AS | Arts & recreation | 2018 |
| Johnsen Invest & Holding AS | | 2022 |
| Jon Georg Lindal AS | Construction | 2021 |
| Jørgen Paulsen Holding AS | | 2021 |
| K.O. Holding AS | | 2017 |
| Kebø Invest AS | | 2024 |
| Kenneth & Peter Ans | Wholesale & retail | 2002 |
| Kittelsen Bygg AS | Construction | 2025 |
| Kjell Ove Sandmo AS | Administrative & support | 2006 |
| Kjenes Blomster Janne Gustavsen Og Gunvor Larsen Ans | Wholesale & retail | 1992 |
| Kjerne Kapital AS | Real estate | 2011 |
| Kltbygg AS | Wholesale & retail | 2018 |
| Kocco Holding AS | Hospitality | 2023 |
| Kodings AS | Information & communication | 2025 |
| Kolbjørnsdatter Holding AS | Education | 2014 |
| Komplett Byggdrift AS | Construction | 2020 |
| Konfektions AS Frøja | Manufacturing | 1974 |
| Konsulent S.Bakke AS | Professional & scientific | 2025 |
| Kontrast Eiendom AS | Real estate | 2010 |
| Krokvåg Vannverk SA | Water & waste | 1963 |