| Frontline Invest AS | Real estate | 2015 |
| Funplays Norway AS | Arts & recreation | 2006 |
| Furuveien 7 AS | Real estate | 2022 |
| Fusion Lab AS | Wholesale & retail | 2026 |
| Future Then AS | Information & communication | 2021 |
| Fylkeshuset Sarpsborg AS | Real estate | 1987 |
| Fysioterapeut Bjørn Johnsen AS | Health & social care | 2013 |
| Fysioterapeut Jon Dahle AS | Health & social care | 2012 |
| G P Holding AS | Wholesale & retail | 2005 |
| G&F Holding AS | Real estate | 2016 |
| G&G Lie Holding AS | | 2022 |
| Ga Bygg Nuf | Construction | 2022 |
| Gabler & Skinnarmo AS | Professional & scientific | 2025 |
| Gain Safety AS | Information & communication | 2025 |
| Galatea AS | Professional & scientific | 2019 |
| Galleri Ene AS | Wholesale & retail | 2019 |
| Gamle Gleng AS | Real estate | 1985 |
| Gartit Creative AS | Information & communication | 2018 |
| Gass Og Energiteknikk AS | Wholesale & retail | 2021 |
| GBT Solutions AS | Information & communication | 2022 |
| Geitle AS | | 2021 |
| Geoteknikk Anlegg AS | Construction | 2021 |
| Geoteknikk AS | Professional & scientific | 2016 |
| Gerstrup Holding AS | | 2019 |
| Get Fit AS | Education | 2024 |
| GGR Holding AS | Real estate | 2008 |
| Ghibli Invest AS | Professional & scientific | 2006 |
| Gjærhuset AS | Real estate | 2001 |
| Gla'Laksen AS | Wholesale & retail | 1990 |
| Gladtvet Øyelege AS | Health & social care | 2020 |
| Glassmester Strand AS | Other services | 2017 |
| Glemmen Eiendom I AS | Real estate | 2009 |
| Gleng Eiendom AS | Real estate | 2023 |
| Gleng Legesenter Da | Health & social care | 2013 |
| Glengsgata 19 AS | Real estate | 2014 |
| Glenn Selskapsmat AS | Hospitality | 2018 |
| Glera AS | | 2021 |
| Global Advokatvakt AS | Professional & scientific | 2023 |
| Glomma Invest AS | Real estate | 1997 |
| Gof Holding AS | Professional & scientific | 2023 |
| Gofoss AS | Professional & scientific | 2023 |
| Golimo Holding AS | | 2022 |
| Gongong Dutlidane AS | Health & social care | 2020 |
| Grandahl Bil AS | Wholesale & retail | 2001 |
| Grandahl Eiendom AS | Real estate | 1995 |
| Grandahl Verksted AS | Other services | 2017 |
| Gretland Bil AS | Wholesale & retail | 2016 |
| Gretland Eiendom AS | Real estate | 2020 |
| Groth Holding AS | Real estate | 2016 |
| Grotterødløkka AS | Education | 2005 |
| Grålum Graveservice Og VVS AS | Administrative & support | 2026 |
| Grålum Pizza AS | Hospitality | 2025 |
| Grønland Medisin AS | Health & social care | 2017 |
| Grønnerød Holding AS | Real estate | 2019 |
| Gsa Bygg AS | Construction | 2011 |
| GT Bygg Og Eiendomstjenester AS | Construction | 2010 |
| Gundersen Sports AS | Wholesale & retail | 2019 |
| Gunnadalen AS | | 2025 |
| Gunnar Magnussen Eiendom AS | Real estate | 2015 |
| Gustav Bjerknes AS | Real estate | 1956 |
| Gyllensten Gourmet AS | Wholesale & retail | 2014 |
| Glomma Papp AS | Manufacturing | 1954 |
| Gårdsinvest AS | Real estate | 2019 |
| Gåsemyr Holding AS | | 2023 |
| Gåtemakeriet AS | | 2020 |
| Gøste Holding AS | Health & social care | 2022 |
| H P Holding AS | Financial services | 2005 |
| H. Invest AS | Financial services | 2016 |
| H. P. Fjellborg AS | Professional & scientific | 2025 |
| H.C.R Mur Og Flis AS | Construction | 2023 |
| Haffy Media AS | Information & communication | 2019 |
| Hafslund Eiendom AS | Real estate | 2022 |
| Hageby Bygg Og Eiendom AS | Construction | 2022 |
| Haircuts Holding AS | Other services | 2014 |
| Haircuts Management AS | Wholesale & retail | 2021 |
| Halden Bil AS | Wholesale & retail | 2006 |
| Halden VGS AS | Real estate | 2022 |
| Halden VGS Eiendomsselskap AS | Real estate | 2019 |
| Hallbergs Belysning Nuf | Wholesale & retail | 2014 |
| Halvorsen Karlsborg AS | Real estate | 1983 |
| Halvorsrød Holding AS | | 2021 |
| Handleriet AS | Wholesale & retail | 2020 |
| Hankon AS | Other services | 2022 |
| Hannestad Barnehage AS | Education | 2022 |
| Hano Invest AS | Real estate | 2009 |
| Hano to AS | | 2025 |
| Hansen Eiendom Ans | Real estate | 1998 |
| Hansen Norge AS | | 2007 |
| Hansen Olje Og Varmeservice AS | Transport & logistics | 2012 |
| Hasta Nuf | Wholesale & retail | 2006 |
| Hatle Holding AS | | 1990 |
| Hawaii Pizza Kebab AS | Hospitality | 2020 |
| HCR Mur Og Flis AS | Wholesale & retail | 2021 |
| Heaps AS | Professional & scientific | 2023 |
| Hege Nyberg Butikkdrift AS | Wholesale & retail | 2024 |
| HEITMANN NORGE Norsk avdeling av utenlandsk foretak NUF | Administrative & support | 1995 |
| Helen & Kristian AS | Manufacturing | 2023 |
| Helse Og Velferd Holding AS | Arts & recreation | 2013 |
| Hendan Holding AS | Wholesale & retail | 2022 |
| Henning Asklien AS | Professional & scientific | 2014 |