| Forefront Holdings AS | Information & communication | 2006 |
| Forlaget Mandagsfilosofene Da | Professional & scientific | 2000 |
| Fornebu Klatre Eksamen Og Sertifikater Da | Professional & scientific | 2000 |
| Fornebu Trafikkskole AS | Education | 2010 |
| Foss Trading Ans | Information & communication | 2006 |
| Foureuro Ans | | 1999 |
| Fox Distribution AS | Wholesale & retail | 2012 |
| Freda AS | Hospitality | 2025 |
| Fredrik Hagelund AS | Administrative & support | 2023 |
| Freeware Da | Information & communication | 1999 |
| Friadgangno Da | Information & communication | 2000 |
| Frimann Capital AS | | 2024 |
| Frimerker Blader Da | Professional & scientific | 2000 |
| Frimerker Og Domener Da | Professional & scientific | 2000 |
| Friskmeldt Lederskap Da | Professional & scientific | 2016 |
| Frogner Emisjoner Da | Professional & scientific | 2000 |
| Front Holding Torgerson AS | Financial services | 2020 |
| Front of House AS | Administrative & support | 2023 |
| Fruitopia AS | Professional & scientific | 2014 |
| Frukthagen Næring AS | Real estate | 2023 |
| Fruvika AS | Real estate | 2016 |
| FSB Invest AS | Information & communication | 2021 |
| Funderud Invest AS | Real estate | 2018 |
| Fy Og Fy Penger Da | Professional & scientific | 2000 |
| Fyi Om Slips Da | Information & communication | 2000 |
| G. Garmann Invest AS | Real estate | 2024 |
| Ga Investeringer AS | | 2024 |
| Gag AS | Real estate | 2007 |
| Gallerino Da | Wholesale & retail | 1999 |
| Gallia Invest AS | Real estate | 2000 |
| Gambling Infosenter Da | Information & communication | 1999 |
| Gamle Drammensvei 48B AS | Real estate | 1987 |
| Gano Da | Professional & scientific | 2000 |
| Garn & Tepper Da | Professional & scientific | 2000 |
| Gas Finans AS | | 2020 |
| Gemini AS | Real estate | 1995 |
| Geminus Holding AS | | 2026 |
| General Engineering Building Services Wojciech Miller | Construction | 2006 |
| Genia Pro AS | Construction | 2025 |
| Geomind AS | Information & communication | 2021 |
| Gevir II AS | | 2024 |
| Giblomster Da | Wholesale & retail | 1999 |
| Giertsolini Invest AS | | 2025 |
| Giljes Holding AS | | 2025 |
| Gin Og Sirkus Da | Professional & scientific | 2000 |
| Gjøstøl Invest AS | Financial services | 2017 |
| Glad Tro Da | Professional & scientific | 2000 |
| GLF Capital AS | | 2025 |
| Globe AS | | 2024 |
| GML. Ringeriksvei 6 AS | Real estate | 2011 |
| GML. Ringeriksvei 6 Holding AS | | 2026 |
| Go Go Girl Da | Professional & scientific | 2000 |
| Go Gun Da | Professional & scientific | 2000 |
| Goatcheese to Me & You Da | Information & communication | 2000 |
| God Som Non Da | Professional & scientific | 2000 |
| Godmorgen Gummigutter Da | Professional & scientific | 2000 |
| Gol Panorama AS | Real estate | 2020 |
| Goldcrest AS | Professional & scientific | 2005 |
| Gono Da | Information & communication | 2000 |
| Good Corp Ltd Nuf | Professional & scientific | 2016 |
| Granholm Hobby Import Ans | | 1992 |
| Grape Expectations AS | Real estate | 2018 |
| Grasrot Gutt Da | Professional & scientific | 2000 |
| Greenroom Invest AS | | 2021 |
| Greensmith AS | Agriculture & fishing | 2023 |
| Gregusson Inho AS | Financial services | 2017 |
| Grevegården Invest AS | | 2021 |
| Grevik Vann Og Avløp AS | Water & waste | 2010 |
| Grevik Vann Og Avløp SA | Water & waste | 2011 |
| Gross Management AS | Financial services | 2006 |
| Grødevigen Vann Og Avløp Drift SA | Water & waste | 2012 |
| Grønne Skoger AS | | 2020 |
| Grønnekinn AS | Professional & scientific | 2005 |
| Grøsland & Co AS | | 2024 |
| GSP Invest AS | Financial services | 2005 |
| GTZ Capital AS | Financial services | 2017 |
| Guderud Eiendom AS | Real estate | 1992 |
| Guler Frukt & Grønt Ans | Wholesale & retail | 2001 |
| Gunstad Jon AS | | 2023 |
| Gyldenløve Invest Holding AS | | 2005 |
| Gynekolog Birgitte Benthien AS | Health & social care | 2013 |
| Gulbrandsen og Grønsleth AS | Professional & scientific | 1988 |
| Ha Group AS | | 2023 |
| Haak Invest AS | | 2005 |
| Haak Investment AS | Professional & scientific | 2005 |
| Haakon H Dahl AS | Professional & scientific | 2025 |
| Haav Holding AS | | 2005 |
| Habitat Bolig AS | Real estate | 2022 |
| Halex Invest AS | Financial services | 2018 |
| Halldner & Partners AB | | 2007 |
| Halvorsensauar AS | | 2012 |
| Hamar Klatre AS | Arts & recreation | 2026 |
| Han Og Parfyme Da | Professional & scientific | 2000 |
| Handyman Norge AS | Construction | 2007 |
| Hangö Invest AS | Real estate | 2006 |
| Hansens Gigantiske Eiendomskonglomerat AS | Real estate | 2015 |
| Hauanveien 45 AS | Real estate | 2019 |
| Hauge Industrier A/S | Financial services | 1966 |
| Haukir AS | Health & social care | 2018 |
| Haukir Holding AS | Health & social care | 2018 |