| Green Property Group AS | Real estate | 1996 |
| Green Receipt AS | Information & communication | 2020 |
| Green Resources AS | Financial services | 1995 |
| Green River Holdings AS | Real estate | 2019 |
| Green River Investment Management AS | Financial services | 2022 |
| Green River Travel & Mobility AS | Financial services | 2021 |
| Green Sea Harvest AS | Manufacturing | 2017 |
| Green Ships AS | Professional & scientific | 1990 |
| Green Sleep AS | Wholesale & retail | 2019 |
| Green Sleep Norge AS | Wholesale & retail | 2009 |
| Green Storage AS | Real estate | 2002 |
| Green Team AS | Professional & scientific | 2019 |
| Green Value AS | Real estate | 2021 |
| Green Ventures AS | Wholesale & retail | 2019 |
| Green Vitality AS | Wholesale & retail | 2015 |
| Green Wave Capital AS | | 2023 |
| Green-Holding AS | Real estate | 2026 |
| Greenaquacare AS | Professional & scientific | 2014 |
| Greenbarge 2023 AS | Transport & logistics | 2022 |
| Greenbarge AS | Transport & logistics | 2011 |
| Greenbean Da | Administrative & support | 2011 |
| Greenbit AS | Wholesale & retail | 2007 |
| Greenbit Energy AS | Wholesale & retail | 2019 |
| Greenbowser AS | Professional & scientific | 2020 |
| Greenbox AS | Information & communication | 2020 |
| Greenbuilt AS | Professional & scientific | 2015 |
| Greencap Partners AS | Professional & scientific | 2025 |
| Greencarrier Consolidators Norway AS | Transport & logistics | 1996 |
| Greencarrier Liner Agency Norway AS | Transport & logistics | 1984 |
| Greencats AS | | 2021 |
| Greencolli AS | Transport & logistics | 2022 |
| Greencom Technologies AS | Wholesale & retail | 2021 |
| Greenely AS | Energy | 2022 |
| Greener Holding AS | Real estate | 2020 |
| Greenera AS | | 2025 |
| Greenfield AS | Information & communication | 2016 |
| Greenfields AS | Wholesale & retail | 2021 |
| Greenfin Contracting Solutions AS | Professional & scientific | 2020 |
| Greengauge AS | Information & communication | 2011 |
| Greenh Kristiansund AS | Manufacturing | 2024 |
| Greenhouse AS | Real estate | 2000 |
| Greenhouse Frisør AS | Other services | 2014 |
| Greenhut Invest AS | Real estate | 2017 |
| Greenjet Nordics AS | Wholesale & retail | 2025 |
| Greenlit AS | | 2022 |
| Greenlogic AS | Information & communication | 2026 |
| Greenmission AS | Professional & scientific | 2019 |
| Greenmission Holding AS | Professional & scientific | 2023 |
| Greenmund Limited | Real estate | 2020 |
| Greenovation Norway AS | Professional & scientific | 2020 |
| Greenpoint Consulting AS | Professional & scientific | 2022 |
| Greenships Invest AS | Manufacturing | 2017 |
| Greenstar Holding AS | | 2024 |
| Greentec AS | Wholesale & retail | 2017 |
| Greentech Intelligence AS | Professional & scientific | 2017 |
| Greentech Solutions AS | Energy | 2019 |
| Greentech Water AS | Wholesale & retail | 2020 |
| Greentown AS | Financial services | 2005 |
| Greenudge Health AS | Health & social care | 2016 |
| Greenvalley AS | Professional & scientific | 2018 |
| Greenventive Development AS | Real estate | 2014 |
| Greenvest AS | Financial services | 2006 |
| Greenwave AS | Information & communication | 2000 |
| Greenwave Terminal Systems AS | Information & communication | 2018 |
| Greenwich Holdings AS | Professional & scientific | 2006 |
| Greenwich Land Securities AS | Real estate | 1997 |
| Greenwood AS | Education | 2026 |
| Greenwood Sales AS | Wholesale & retail | 2019 |
| Greenworks AS | | 2023 |
| Greenzone AS | Energy | 2010 |
| Grefsen Alle 12 a AS | Real estate | 1994 |
| Grefsen AS | Real estate | 1985 |
| Grefsen Auto AS | Wholesale & retail | 2017 |
| Grefsen Boligservice AS | Administrative & support | 2012 |
| Grefsen Boligutvikling AS | Real estate | 2016 |
| Grefsen Catering AS | | 2021 |
| Grefsen Fysioterapi AS | Real estate | 2003 |
| Grefsen Hudpleie AS | Other services | 2021 |
| Grefsen Invest Holding AS | Real estate | 2005 |
| Grefsen Og Torshov Eiendomsmegling AS | Real estate | 2001 |
| Grefsen Oppussing AS | Construction | 2019 |
| Grefsen Renholdsservice AS | Administrative & support | 1992 |
| Grefsen Sushi AS | Hospitality | 2017 |
| Grefsen Tannlegesenter AS | Health & social care | 2016 |
| Grefsen Utvikling Næring 1 AS | Real estate | 2021 |
| Grefsenhjemmet Sykehjemsdrift AS | Health & social care | 2013 |
| Grefsenhus AS | Real estate | 2007 |
| Grefsenkollen Drift AS | Hospitality | 1998 |
| Grefsenkollen Eiendom AS | Real estate | 2015 |
| Grefsenkollen Invest AS | | 2024 |
| Grefsenkollveien 8 AS | Real estate | 2006 |
| Grefsenlyst 14 Fus Barnehage AS | Education | 2009 |
| Grefsenlyst Fus Barnehage AS | Education | 2019 |
| Grefsenveien 105 AS | Real estate | 2025 |
| Grefsenveien 15 Holding AS | | 2025 |
| Grefsenveien 15 Næring AS | | 2025 |
| Grefsenveien 25 Holding AS | Real estate | 2025 |
| Grefsenveien 26 Eiendom AS | Real estate | 2018 |
| Grefsenveien 28 AS | Real estate | 2021 |
| Grefsenveien 6 B AS | Real estate | 2019 |