| Grand Symbol Yachts AS | Wholesale & retail | 1989 |
| Grand Taj Restaurant AS | Hospitality | 2016 |
| Grand Wines AS | Wholesale & retail | 2019 |
| Granda AS | Construction | 2022 |
| Grandafamily International Limited | Real estate | 2021 |
| Grande Bil MD AS | Wholesale & retail | 2023 |
| Granden Holding AS | | 2026 |
| Grandiflora Invest AS | | 2018 |
| Grandir AS | Professional & scientific | 2012 |
| Grandmist Games AS | Information & communication | 2026 |
| Grandtas AS | | 2016 |
| Granen AS | | 2020 |
| Graneng Holding AS | | 2018 |
| Granfoss AS | Professional & scientific | 2021 |
| Grange Road AS | Professional & scientific | 2011 |
| Grangex Sydvaranger AS | Mining & quarrying | 2023 |
| Granhaug Da | Real estate | 1997 |
| Granhaug Industrier AS | Real estate | 1996 |
| Granheim Agency AS | Education | 2005 |
| Granholmen Og Hvaler Miljølandbruk AS | Agriculture & fishing | 2007 |
| Granholt Coaching AS | Education | 2025 |
| Granida Invest AS | Financial services | 2005 |
| Granit Funktion Og Forvaring AS | Wholesale & retail | 2009 |
| Granite AS | Administrative & support | 2019 |
| Granitt Og Betongvare AS | Wholesale & retail | 1998 |
| Granitten Bolig AS | Real estate | 2026 |
| Granittoppen Bolig 1 AS | Real estate | 2025 |
| Granittoppen Bolig 2 AS | Real estate | 2025 |
| Granittoppen Holding AS | Real estate | 2025 |
| Granittveien 4 AS | Real estate | 2015 |
| Granlien AS | Real estate | 2006 |
| Granly AS | Real estate | 1994 |
| Granly Eiendom AS | Financial services | 2005 |
| Granly Holding AS | Wholesale & retail | 2005 |
| Granly Og Hauger Ans | Wholesale & retail | 1989 |
| Granly Økonomiservice AS | Professional & scientific | 1986 |
| Granne AS | Real estate | 1989 |
| Granni AS | Financial services | 2014 |
| Granrud Elektriske AS | Construction | 1991 |
| Granrud Holding AS | | 2016 |
| Granrudtorget AS | Real estate | 2006 |
| Grans Holdco AS | Financial services | 2016 |
| Gransdalen 29 AS | Real estate | 2002 |
| Gransdalen 31 AS | Real estate | 2020 |
| Gransdalen Legesenter AS | Health & social care | 1993 |
| Gransdalen Legesenter Drift AS | Health & social care | 2015 |
| Gransjøen AS | Transport & logistics | 2006 |
| Granskingsfirmaet Kvamme AS | Professional & scientific | 2005 |
| Granskogen AS | Financial services | 1994 |
| Granskudd Da | Information & communication | 2024 |
| Granstunet Eiendom AS | Real estate | 2004 |
| Grant Holding AS | | 2020 |
| Grantchester AS | Financial services | 2018 |
| Grantify AS | Information & communication | 2026 |
| Granum & Co AS | Wholesale & retail | 2019 |
| Granut AS | Real estate | 2008 |
| Granvang Holding AS | | 2025 |
| Granvoll KA1 AS | Real estate | 2022 |
| Granvoll KA2 AS | Real estate | 2022 |
| Granåsbakken AS | Real estate | 2010 |
| Granåsbakken Utvikling AS | Real estate | 2020 |
| Granåsen AS | Real estate | 2019 |
| Granåsen Utvikling AS | Real estate | 2011 |
| Grape Architects AS | Professional & scientific | 2015 |
| Grape Company AS | Wholesale & retail | 2016 |
| Grape Holding AS | Professional & scientific | 2012 |
| Grapes AS | Information & communication | 2017 |
| Grapestone Fine Wines AS | Wholesale & retail | 2013 |
| Graphene Composites Norway AS | Professional & scientific | 2021 |
| Graphic Properties AS | | 2017 |
| Graphlab AS | Information & communication | 2024 |
| Graphogame SPV AS | Financial services | 2023 |
| Graphx A/S | Manufacturing | 2000 |
| Grappa Musikkforlag AS | Information & communication | 1986 |
| Grappolo AS | Wholesale & retail | 2012 |
| Graps AS | | 2026 |
| Graroe AS | Information & communication | 2023 |
| Grasdalen 20-30 AS | Real estate | 2019 |
| Grasmyr Holding AS | | 2023 |
| Graspify AS | Information & communication | 2021 |
| Grassfish Norway AS | Information & communication | 2004 |
| Grasveien AS | Real estate | 2025 |
| Gratax Regnskap AS | Professional & scientific | 2023 |
| Grav-Terrassen AS | Other services | 1956 |
| Gravdalsveien 10 C AS | Real estate | 2014 |
| Grave Consulting AS | Professional & scientific | 2018 |
| Grave Holding AS | Professional & scientific | 2018 |
| Gravel Invest AS | | 2024 |
| Gravenstein AS | Real estate | 2021 |
| Graver Consulting AS | Professional & scientific | 2021 |
| Graveservice Sandstad AS | Construction | 2016 |
| Graveserviceoslo AS | Construction | 2024 |
| Graveyard AS | Information & communication | 2026 |
| Gravitek AS | Construction | 2019 |
| Gravitek Holding AS | Construction | 2019 |
| Gravity Holding AS | | 2026 |
| Gravity Invest AS | | 2015 |
| Gravomsorg AS | Other services | 2025 |
| Gravvold AS | Information & communication | 1985 |
| Gravy AS | Wholesale & retail | 2016 |