| Goggen Sportpub AS | Hospitality | 2003 |
| Goks Eiendom AS | Real estate | 2009 |
| Gokso Utvikling AS | Real estate | 2013 |
| Goldenwood AS | Real estate | 2007 |
| Goldmed AS | Health & social care | 2012 |
| GP Technology AB | Professional & scientific | 2018 |
| GR Investering AS | | 2026 |
| GR Prosjekt AS | Professional & scientific | 2026 |
| Grain & Grape AS | Wholesale & retail | 2024 |
| Granitor Electro AS | Construction | 2011 |
| Granitor Norway AS | Construction | 2014 |
| Granitor Norway Holding AS | Construction | 2018 |
| Granitor Systems AS | Construction | 2014 |
| Granittlia Utvikling AS | Real estate | 2019 |
| Granly Boligutvikling AS | Real estate | 2021 |
| Grans Forretningsbygg AS | Real estate | 2000 |
| Gratra Anlegg AS | Construction | 2022 |
| Gratra Eiendom 2025 AS | Real estate | 2025 |
| Gravarhovda Eiendom AS | Real estate | 2019 |
| Gravdalsveien Veilag SA | Real estate | 1990 |
| Gravdaltoppen AS | Real estate | 2021 |
| Gravograph Norge AS | Wholesale & retail | 1990 |
| Grebo Eiendom AS | Real estate | 1999 |
| Green-Utengen AS | | 2010 |
| Greencore AS | Professional & scientific | 2021 |
| Greenhouse Film Productions AS | Information & communication | 2018 |
| Greenklinikken AS | Health & social care | 2009 |
| Grefsenveien 126 AS | Real estate | 2019 |
| Grev Wedel Legesenter Da | Health & social care | 2013 |
| Grev Wedels Parkeringshus AS | Transport & logistics | 2013 |
| Greve Laserklinikk AS | Health & social care | 2021 |
| Grillen 1 AS | Hospitality | 2020 |
| Grimsrud Anlegg AS | Construction | 2025 |
| Groki Holding AS | | 2022 |
| Grothaug Holding AS | Real estate | 2021 |
| Grothaug Invest AS | Real estate | 2022 |
| Growth Struktur AS | Professional & scientific | 2012 |
| GRT Eiendom AS | Real estate | 2012 |
| Gruba AS | Wholesale & retail | 1998 |
| Grube Bygg Og Maskin Da | Construction | 2016 |
| Grundfos Water Treatment Norway AS | Wholesale & retail | 2004 |
| Gråterudveien 16-18 AS | Real estate | 2004 |
| Gråterudveien 16B AS | Real estate | 2023 |
| Gråterudveien 18A AS | Real estate | 2023 |
| Gråterudveien 18B AS | Real estate | 2023 |
| Gråterudveien 20 AS | Real estate | 2007 |
| Gråterudveien 26 AS | Real estate | 2018 |
| Gråterudveien 8 AS | Real estate | 2022 |
| Gråterudveien Næringspark AS | Real estate | 2019 |
| Grøndahl Consult Og Invest AS | Real estate | 2001 |
| Grøndal Bilbutikken AS | Wholesale & retail | 2003 |
| Grøndal Invest AS | Wholesale & retail | 2005 |
| Grøndal Mobility AS | Administrative & support | 1985 |
| Grønland 1 AS | Real estate | 2018 |
| Grønland 32 B AS | Real estate | 2008 |
| Grønland 34 AS | Real estate | 2015 |
| Grønland 38 AS | Real estate | 2008 |
| Grønland 57 AS | Real estate | 2025 |
| Grønland 65 AS | Real estate | 2014 |
| Grønland 68 AS | Real estate | 2011 |
| Grønland 9 AS | Real estate | 1986 |
| Grønland Blikk Vent Og Sveis Da | Construction | 2000 |
| Grønland Hagesenter AS | Agriculture & fishing | 1997 |
| Grønn Byggutvikling AS | Professional & scientific | 2013 |
| Grønn Helse Invest AS | Wholesale & retail | 2023 |
| Grønn Holdning AS | Real estate | 2024 |
| Grønn Næringskompetanse AS | Professional & scientific | 2011 |
| Grønn Renhold AS | Administrative & support | 2017 |
| Grønne Hus AS | Real estate | 2005 |
| Grønvold Eiendomsselskap AS | Real estate | 1985 |
| GSG Viken AS | Wholesale & retail | 2015 |
| GT 3 Eiendom AS | Real estate | 2021 |
| GT Partner AS | Construction | 2019 |
| Gtila AS | Administrative & support | 2021 |
| Guddal Service AS | Manufacturing | 2018 |
| Guilty Drammen AS | Transport & logistics | 2024 |
| Gul AS | Wholesale & retail | 2011 |
| Guldlisten 16 AS | Real estate | 2000 |
| Guldlisten Eiendom AS | Real estate | 2020 |
| Gullaug Bensin AS | Real estate | 2015 |
| Gullbarn AS | Manufacturing | 2017 |
| Gullhaugen AS | Real estate | 2019 |
| Gullhaugen Eiendomsutvikling AS | Real estate | 2020 |
| Gullhaugen Holding AS | Administrative & support | 2019 |
| Gulliksen AS | Transport & logistics | 1996 |
| Gulliksen Eiendom AS | Real estate | 2000 |
| Gulliksen Holding AS | Transport & logistics | 2005 |
| Gulliksrud Eiendom AS | Real estate | 2018 |
| Gullsmed Adolf Ruud AS | Wholesale & retail | 1985 |
| Gullsmed Horgen AS | Wholesale & retail | 2021 |
| Gullsmed Olaf E Olsen AS | Wholesale & retail | 1995 |
| Gulskogen Bakeri AS | Wholesale & retail | 2022 |
| Gulskogen Eiendom AS | Real estate | 2023 |
| Gulskogen Foto AS | Wholesale & retail | 2021 |
| Gulskogen Fysioterapi Og Akupunktur Da | Health & social care | 1998 |
| Gulskogen Helsesenter Da | Health & social care | 2002 |
| Gulskogen Legesenter AS | Health & social care | 2020 |
| Gulskogen Optikk AS | Wholesale & retail | 2010 |
| Gulskogen Ur Og Smykker AS | Wholesale & retail | 2009 |
| Gulskogen Utviklingsselskap AS | Real estate | 2017 |