| Gaston Schul Customs AS | Transport & logistics | 2013 |
| Getera AS | Construction | 2017 |
| Gjerdrum Solstudio Da | Other services | 2007 |
| Gold Hand Handyman AS | Construction | 2020 |
| GP Logistikk AS | Transport & logistics | 2016 |
| Granu AS | Wholesale & retail | 2024 |
| Gray Invest AS | | 2026 |
| Gromt AS | Transport & logistics | 2017 |
| Grønn Leveranse AS | Transport & logistics | 2019 |
| Grønn Leveranse Transport AS | Transport & logistics | 2021 |
| Gystad Skog AS | | 2000 |
| GZS AS | Hospitality | 2015 |
| Haga Rør & Varme AS | Construction | 2017 |
| Hagrola Consulting AS | Professional & scientific | 2008 |
| Haie AS | Professional & scientific | 2019 |
| Hallbing Holding AS | | 2023 |
| Halldor Holding AS | Financial services | 2018 |
| Hasle Bilservice Og Karosseri AS | Other services | 2025 |
| Hauerberg Eiendom Da | Real estate | 1994 |
| Haugerveien 5 AS | Real estate | 2005 |
| HCS Nordics AS | Wholesale & retail | 2026 |
| Heg Holding AS | Real estate | 2005 |
| Heimvaag AS | Professional & scientific | 2025 |
| Herthea AS | | 2005 |
| Hertzen Futureventures AS | | 2024 |
| Hevonen AS | Education | 2024 |
| Hillern AS | Real estate | 2005 |
| Hilton Eiendom AS | Administrative & support | 2024 |
| Hilton Invest AS | Real estate | 2015 |
| Hj-Consulting AS | Information & communication | 2012 |
| Hogopp 897 Holding AS | | 2023 |
| Holfreight AS | Transport & logistics | 2002 |
| Holms Rør AS | Construction | 2022 |
| Holship Norge AS | Transport & logistics | 1996 |
| Holt Kapital AS | | 2026 |
| Holter Montasje AS | Information & communication | 2026 |
| Honningcentralen SA | Manufacturing | 1927 |
| Hse Transport AS | Transport & logistics | 2013 |
| HTV Eiendom AS | Real estate | 1974 |
| HTV Entreprenør AS | Construction | 2017 |
| HTV Invest AS | Professional & scientific | 2005 |
| HTV Rørfornying AS | Construction | 2017 |
| Hurum Holdings AS | | 2021 |
| Hurum Invest AS | Professional & scientific | 2021 |
| Høytrykks-Vakta AS | Water & waste | 2016 |
| Iag Branding AS | Professional & scientific | 2021 |
| Ikenga Services AS | Transport & logistics | 2026 |
| Imf Industrier AS | Professional & scientific | 1991 |
| Import Og Handel AS | Wholesale & retail | 2026 |
| Infas AS | Real estate | 1998 |
| Injoso AS | | 2024 |
| Inox Technology AS | Wholesale & retail | 2018 |
| Ishaan MC AS | Wholesale & retail | 2017 |
| Iulian Transport AS | Transport & logistics | 2021 |
| Izn AS | Wholesale & retail | 2026 |
| Jaktia AS | Wholesale & retail | 2017 |
| Jeh Aktiv AS | Administrative & support | 2021 |
| Jeh Holding AS | Hospitality | 2018 |
| Jessheim Rørleggerbedrift AS | Construction | 2021 |
| Jetbit AS | Information & communication | 2026 |
| JGL AS | Hospitality | 2014 |
| Jobconsult AS | Administrative & support | 2017 |
| John Berthelsen Holding AS | Other services | 2005 |
| JSB AS | Construction | 2025 |
| Jutoexport AS | Wholesale & retail | 2025 |
| JVS Produkter AS | Wholesale & retail | 2023 |
| Jødahl Takst Og Bygg AS | Construction | 2021 |
| Jørgensens Smie AS | Manufacturing | 2012 |
| K. Kværner Industri AS | Manufacturing | 2017 |
| Kai Øveraasen Holding AS | Financial services | 2005 |
| Karbonrens Norge AS | Other services | 2017 |
| KB Kløfta Apotek AS | Wholesale & retail | 2025 |
| Kebab Kongen Kløfta AS | Hospitality | 2025 |
| Keller Invest AS | | 2019 |
| Kems AS | Real estate | 2017 |
| Kikt AS | | 2025 |
| Kirkestuen Rør AS | Construction | 2026 |
| KL Audio AS | | 2023 |
| Kl-Teknikk AS | Professional & scientific | 2013 |
| Kløfta Bilhåndvask AS | Other services | 2021 |
| Kløfta Bilservice AS | Other services | 2010 |
| Kløfta Bygg Og Transport AS | Transport & logistics | 2023 |
| Kløfta Dagligvare AS | Wholesale & retail | 2024 |
| Kløfta Eiendom AS | Real estate | 2013 |
| Kløfta Fotterapi AS | Health & social care | 2021 |
| Kløfta Hårdesign AS | Other services | 2017 |
| Kløfta Kvikk Service Da | Wholesale & retail | 1989 |
| Kløfta Legesenter AS | Health & social care | 1997 |
| Kløfta Pizzaservice AS | Hospitality | 2013 |
| Kløfta Sushi AS | Hospitality | 2017 |
| Kløfta Tannhelsesenter AS | Health & social care | 2018 |
| Kløfta Tannlegesenter AS | Health & social care | 2018 |
| Kløfta Vedlikehold AS | Administrative & support | 2013 |
| Knallskudd Media - Kvaløy | Professional & scientific | 2013 |
| Knatten Kna AS | Real estate | 2011 |
| Kollen Malerpartner AS | Construction | 2022 |
| Kolstø AS | Real estate | 2018 |
| Kopperud&Sønn Transport AS | Transport & logistics | 2012 |
| KR Økonomi AS | Professional & scientific | 1986 |
| Kragset Utleie AS | Real estate | 2013 |