| Gubberudvegen 2 AS | Real estate | 2025 |
| Gubemusic.Com AS | Wholesale & retail | 2007 |
| Gud På Gitar Da | Education | 2017 |
| Gudbrand Tandberg AS | | 2023 |
| Gudbrandsdalsvegen 187 AS | Real estate | 2017 |
| Gudbrandsdalsveien 194 AS | Real estate | 2006 |
| Gudbrandsrud Invest AS | | 2024 |
| Gude Deberitz AS | Professional & scientific | 2013 |
| Gude Holding AS | Financial services | 2018 |
| Gudem Holding AS | | 2019 |
| Gudes Gate 1 Moss AS | Real estate | 2018 |
| Gudes Gate 12 AS | Real estate | 2006 |
| Gudes Gate 2 AS | Real estate | 2023 |
| Gudes Gate 5 AS | Real estate | 2019 |
| Gudesen Holding AS | | 2020 |
| Gudesgate 10 AS | Real estate | 1999 |
| Gudfar Invest AS | Financial services | 2006 |
| Gudleik Holding AS | | 2019 |
| Gudmestad Holding AS | Real estate | 2024 |
| Gudmoren AS | Arts & recreation | 2025 |
| Gudmund AS | Financial services | 2013 |
| Gudmundsen Transport AS | Transport & logistics | 2013 |
| Gudrun Sjøden AS | Wholesale & retail | 1994 |
| Guerra Capital Group Limited | Real estate | 2021 |
| Guerra Invest AS | Administrative & support | 2022 |
| Guerrero AS | Professional & scientific | 2022 |
| Guerrilla AS | Information & communication | 2022 |
| Guestr AS | Information & communication | 2026 |
| Gugi Invest Og Eiendom AS | Real estate | 2021 |
| Gugu AS | Real estate | 2016 |
| Guidelights AS | Health & social care | 2016 |
| Guiding Moon AS | Information & communication | 2022 |
| Guildenstern AS | Arts & recreation | 2022 |
| Guildenstern Holding AS | Arts & recreation | 2022 |
| Guillotin AS | Manufacturing | 2021 |
| Gujac Holding AS | Real estate | 2006 |
| Gukild AS | Arts & recreation | 2023 |
| GUL3 AS | Real estate | 2020 |
| Gulbis Holding AS | | 2023 |
| Gulbrand Gråstein AS | Real estate | 2013 |
| Gulbrandsen & Olimb AS | Construction | 1997 |
| Gulbrandsen Agencies AS | Wholesale & retail | 1991 |
| Gulbrandsen AS | | 2025 |
| Gulbrandsen Eiendom AS | Real estate | 2012 |
| Gulbrandsen Grøftegraveri AS | | 2019 |
| Gulbrandsen Technology AS | Professional & scientific | 2017 |
| Gulbrandsen Utvikling AS | Real estate | 2005 |
| Gulbrandsrud Holding AS | | 2023 |
| Guld & Metallhandel Sverige Handelsbolag | Wholesale & retail | 2012 |
| Guldberg AS | Information & communication | 2012 |
| Guldberg Bygg AS | Construction | 2024 |
| Guldberg Invest AS | Professional & scientific | 1991 |
| Guldbergsvei 33 Utvikling AS | Real estate | 2023 |
| Guldborgen AS | | 2024 |
| Guldfrei Eiendom AS | Real estate | 2020 |
| Guldhaugsletta AS | Construction | 2017 |
| Guldheim AS | Real estate | 2005 |
| Guldvik AS | Real estate | 2001 |
| Gule Invest AS | Financial services | 2020 |
| Gule Og Grønne Skoger AS | | 2009 |
| Gule Og Skrivarhaug Eiendomsforvaltning AS | Real estate | 2011 |
| Gule Sider AS | Information & communication | 1992 |
| Gulebransjer Internett Da | Information & communication | 2002 |
| Gulebransjer Media Da | Information & communication | 2002 |
| Gulen Invest AS | | 2021 |
| Guler Holding AS | | 2018 |
| Guleto LM AS | | 2025 |
| Gulf Support AS | Transport & logistics | 2024 |
| Gulf Support II AS | | 2024 |
| Gulimo Invest AS | Financial services | 2005 |
| Gull Bygg AS | Construction | 2022 |
| Gull Fra Innlandet AS | Wholesale & retail | 2022 |
| Gullak Holding AS | Financial services | 2005 |
| Gullas AS | | 2020 |
| Gullaug Næring 1 AS | Real estate | 1980 |
| Gullaug Utvikling AS | Real estate | 2008 |
| Gullbekken AS | Information & communication | 2024 |
| Gullbekkhei Invest AS | | 2019 |
| Gullberg & Bostadløkken AS | Wholesale & retail | 2020 |
| Gullberg Brugaard AS | | 2024 |
| Gullberg Invest AS | | 2015 |
| Gullbergelva Kraftverk AS | Energy | 2018 |
| Gullborgen AS | Wholesale & retail | 1954 |
| Gullborgen Holding AS | Wholesale & retail | 2005 |
| Gullbranson AS | Information & communication | 2015 |
| Gulleråsveien 17 AS | Real estate | 2011 |
| Gulleråsveien 6 B AS | Real estate | 2009 |
| Gullestad I AS | Real estate | 2009 |
| Gullestad Medisinske Holding AS | Financial services | 2014 |
| Gullfaks AS | Real estate | 2012 |
| Gullfall Holding AS | | 2022 |
| Gullfaxi AS | Transport & logistics | 2025 |
| Gullfisken Invest AS | | 2023 |
| Gullfjell Holding AS | | 2025 |
| Gullfuglen AS | | 2026 |
| Gullfuglen Invest AS | | 2020 |
| Gullgrossisten AS | Wholesale & retail | 2021 |
| Gullgruven I AS | Real estate | 2017 |
| Gullgruven II AS | Real estate | 2017 |
| Gullgruven Senter AS | Real estate | 2013 |