| Go on Shop Porsgrunn AS | Wholesale & retail | 2024 |
| Go on Shop Sandnes Sentrum AS | Wholesale & retail | 2022 |
| Go on Shop Sørlandssenteret N01 AS | Wholesale & retail | 2024 |
| God Driv Uko AS | | 2025 |
| God Tid AS | Real estate | 2008 |
| GOD9ER AS | Wholesale & retail | 2018 |
| GODBIT1.NO AS | Wholesale & retail | 2019 |
| Gode Steder AS | Professional & scientific | 2025 |
| Godhei Holding AS | | 2025 |
| Godiskongen AS | Wholesale & retail | 2023 |
| Godliåsen Kvitfjell AS | Real estate | 2007 |
| Gofoten Kristiansand AS | Health & social care | 2013 |
| Gogang AS | Arts & recreation | 1999 |
| Gogcon AS | | 2026 |
| Golfboxen AS | Administrative & support | 2025 |
| Golflab AS | Administrative & support | 2020 |
| Golli Kapital AS | | 2024 |
| Gonnar Versto Holding AS | Manufacturing | 2024 |
| Good Vibes AS | Professional & scientific | 2019 |
| Goodman Holding AS | | 2019 |
| Goodtimes Event AS | Professional & scientific | 2013 |
| Gorilla Holding AS | | 2016 |
| Gorka Holding AS | | 2026 |
| Gosh Norge AS | Professional & scientific | 2001 |
| Gosling Holding AS | | 2026 |
| Got Safe Yards AS | Manufacturing | 2016 |
| Got Vinje Industri AS | Manufacturing | 2016 |
| Gottestøyl Invest AS | Professional & scientific | 2004 |
| Gottestøyl Utvikling AS | Real estate | 2014 |
| Gottis AS | Wholesale & retail | 2021 |
| Gourmetguttane AS | Hospitality | 2024 |
| GP Eiendom Fagerholt AS | Real estate | 2007 |
| GPD AS | Construction | 2014 |
| GQ Service AS | Construction | 2017 |
| Gracewave-Grace Water Ventures AS | Professional & scientific | 2013 |
| Gral Eiendom AS | Real estate | 2024 |
| Gral Holding AS | Construction | 2024 |
| Granlivegen 26 AS | Real estate | 2025 |
| Granni Tech AS | Information & communication | 2025 |
| Gratis Tur AS | | 2025 |
| Gravermoen AS | Professional & scientific | 2015 |
| GRB Invest AS | Real estate | 2010 |
| Gre AS | Real estate | 2011 |
| Gre Eiendom AS | Real estate | 2017 |
| Greek Chef AS | Hospitality | 2023 |
| Green Bio AS | Energy | 2021 |
| Green Bio Sør AS | Energy | 2001 |
| Green Collective AS | Wholesale & retail | 2019 |
| Green Highlander Eiendom AS | Real estate | 2024 |
| Green Highlander Holding AS | Real estate | 1986 |
| Green Hyco AS | Information & communication | 2020 |
| Green Line Helsekost AS | Wholesale & retail | 2013 |
| Green Nordic AS | Professional & scientific | 2022 |
| Green Property Technology AS | Professional & scientific | 2025 |
| Green Vision Holding AS | Real estate | 2020 |
| Green-Technologies AS | Professional & scientific | 2023 |
| Green-Technologies Heat AS | Professional & scientific | 2025 |
| Green-Technologies Production AS | Professional & scientific | 2025 |
| Greenblock AS | Professional & scientific | 2025 |
| Greenlight Safety Management AS | Professional & scientific | 2020 |
| Gregers Holding AS | | 2005 |
| Greipstadgruppen AS | Real estate | 2021 |
| Grener Eiendom AS | | 2023 |
| Grenmar Eiendomsforvaltning AS | Real estate | 2009 |
| Grepa Invest AS | Real estate | 2017 |
| Greppestøl Lystgård AS | Hospitality | 2022 |
| Grieg Martens AS | Professional & scientific | 2013 |
| Grim Auto AS | Construction | 2022 |
| Grim Bakeri Og Konditori AS | Manufacturing | 1999 |
| Grim Eiendom AS | Real estate | 2008 |
| Grim Kulturbryggeri AS | Information & communication | 2025 |
| Grim Torv AS | | 2026 |
| Grim Torv Invest AS | Hospitality | 2012 |
| Grim Torv Veterinærhus AS | Professional & scientific | 2011 |
| Grims Have AS | Health & social care | 2020 |
| Grimstad Storhandel AS | Real estate | 2025 |
| Grimstad Stormarked Invest AS | Real estate | 2005 |
| Grindberg Olivias Hus AS | Wholesale & retail | 2007 |
| Gripon AS | Manufacturing | 1997 |
| Grit Solution AS | Wholesale & retail | 2018 |
| Grivisvingen AS | Real estate | 2016 |
| Gro. Gestaltterapi AS | Health & social care | 2020 |
| Groff AS | Transport & logistics | 2018 |
| Groos Invest AS | Real estate | 2005 |
| Grooseveien 2 Eiendom AS | Real estate | 2010 |
| Grosi AS | Transport & logistics | 2025 |
| Grouse AS | | 2022 |
| Grov Group AS | Real estate | 2021 |
| Grov's Classic Garage AS | Wholesale & retail | 2008 |
| Growai AS | Information & communication | 2021 |
| Growhubs AS | Education | 2025 |
| Grundetjern Og Li AS | Professional & scientific | 2016 |
| Grunn Solid AS | Construction | 2021 |
| Grødums Auto AS | Other services | 1990 |
| Grøft&Løft AS | Construction | 2024 |
| Grøgårdsmyrbakken 1 AS | Real estate | 2025 |
| Grønn Jord AS | Education | 2019 |
| Grønn Villa AS | Real estate | 2020 |
| Grønningen AS | Real estate | 2021 |
| Grønnpå AS | Construction | 2025 |