| Gorn Technical Services Ltd | Ab55 5Aw Banffshire Scotland | 2011 |
| Gorud Drift AS | Hokksund | 2018 |
| Gos AS | Hyggen | 2019 |
| Goscore AS | Bergen | 2019 |
| Gosubsea AS | Kopervik | 2020 |
| Got AS | Alta | 2020 |
| Gothenburg Storyline Studios AB Nuf | Se-417 56 Göteborg | 2023 |
| Goticket AS | Tananger | 2016 |
| Gotowly AS | Ålesund | 2026 |
| Gottex Brokers SA | Ch-1009 Pully | 2025 |
| Gotur AS | Godøya | 2023 |
| Gowell Technology Norway AS | Sandnes | 2025 |
| Goxplore Norway AS | Jar | 2024 |
| Goxplore Worldwide AS | Oslo | 2020 |
| GP & Co AS | Lillestrøm | 2024 |
| GPB Invest AS | Hobøl | 2005 |
| Gps-Holding AS | Husøysund | 2017 |
| GQ Seabed Equipment AS | Stavanger | 2023 |
| GR Anleggsgartner AS | Erdal | 2018 |
| GR Cruiseservice Bergen Ans | Søreidgrend | 2007 |
| GR Skeie AS | Rauland | 2022 |
| GR Truck Og Maskin Ans | Tjeldstø | 2001 |
| Grabb Da | Ørsta | 2000 |
| Graboplan KFT | 9027 Györ | 2010 |
| Graff AS | Oslo | 2021 |
| Graff Executive Search AS | Oslo | 2013 |
| Graffiti Rengjøring AS | Oslo | 1995 |
| Graffitifjerneren AS | Snarøya | 2023 |
| Grafton Commodity Trading Limited Nuf | London Ec1N 6Td England | 2025 |
| Grafton Management AS | Oslo | 2006 |
| Grafton Norge AS | Oslo | 1985 |
| Gran Snødrift AS | Gran | 2011 |
| Grand Canyon 2 KS | Fosnavåg | 2014 |
| Grandcruvin AS | Gamle Fredrikstad | 2018 |
| Grande Talent AS | Sola | 2026 |
| Grandi Navi Veloci S.P.A Nuf | Cap 90146 Palermo (Pa) | 2020 |
| Grandus AS | Måløy | 2019 |
| Grane Potetmaskin Da | Trofors | 2009 |
| Granerud Smedsrud Maskinservice Da | Skreia | 2003 |
| Granholm Talent AS | Sola | 2026 |
| Granit Personalutleie Da | Fauske | 2012 |
| Granite AS | Oslo | 2019 |
| Granli AS | Skarnes | 2001 |
| Granlid Invest AS | Hattfjelldal | 2023 |
| Granlid Maskin AS | Hattfjelldal | 2025 |
| Granly AS | Stokmarknes | 2000 |
| Granlys Truck AS | Sellebakk | 2018 |
| Gransherad Bensin AS | Gransherad | 2003 |
| Grant Thornton Sweden AB Nuf | Se-103 94 Stockholm | 2026 |
| Grapefruit AS | Kragerø | 2017 |
| Graphic Packaging International Bremen GmbH Nuf | De-28309 Bremen | 2026 |
| Gravdahl Invest AS | Hønefoss | 2025 |
| Gravdal Hage Og Anlegg AS | Godvik | 1998 |
| Graveklar AS | Breivik I Salten | 2026 |
| Gravglans Da | Skien | 2025 |
| Gravik Eiendomservice AS | Naustbukta | 2023 |
| Gravitas Maskin AS | Asker | 2021 |
| Gravlegater AS | Jar | 2020 |
| Gravpasserne AS | Bøstad | 2025 |
| GRAVSTELL365 Norge AS | Bjørndalstræ | 2015 |
| Gravstellerne AS | Jar | 2015 |
| Gravtec AS | Avaldsnes | 2025 |
| Great Place to Be AS | Svolvær | 2019 |
| Great Vacation AS | Borgenhaugen | 2024 |
| Greatpeople AS | Oslo | 2022 |
| Green Clean AS | Oslo | 2022 |
| Green Farms Bio AS | Heggedal | 2019 |
| Green Future AS | Oslo | 1997 |
| Green Garden AS | Oslo | 2024 |
| Green Gardens AS | Aurskog | 2015 |
| Green Hydrogen Systems | Dk-6000 Kolding | 2023 |
| Green Mountain Services AS | Rennesøy | 2024 |
| Green Rental AS | Ingeberg | 2025 |
| Green Seas International Ltd | Ro-9000592 Constanta | 2007 |
| Green Services AS | Ålesund | 1994 |
| Green Shipping AS | Haugesund | 1997 |
| Green Team Service AS | Tennfjord | 2006 |
| Green Yard Competence AS | Feda | 2026 |
| Greenbean Da | Oslo | 2011 |
| Greendoor Logistics AS | Bergen | 2009 |
| Greenified AB | Se-421 30 Västra Frölunda | 2021 |
| Greenlander AS | Tromsø | 2016 |
| Greenmec AS | Skatval | 2015 |
| Greenplanet AS | Tistedal | 2020 |
| Greenpool AS | Frogner | 2020 |
| Greenride AS | Kolbotn | 2026 |
| Greenscape AS | Lillestrøm | 2024 |
| Greentrain AS | Vigra | 2025 |
| Greenworks Norge AS | Skollenborg | 2025 |
| Grefsen Boligservice AS | Oslo | 2012 |
| Grefsen Renholdsservice AS | Oslo | 1992 |
| Greg Tech Ltd | Glasgow G42 9Xg Scotland | 2020 |
| Grenland Fallskjermfly AS | Skien | 2022 |
| Grenland Maskinutleie AS | Skien | 2022 |
| Grenland Multiservice AS | Porsgrunn | 2019 |
| Grenland Pokerrun AS | Porsgrunn | 2025 |
| Grenland Port & Gjerde AS | Skien | 2020 |
| Grenland Rail Materiell AS | Skien | 2023 |
| Grenland Renhold AS | Skien | 2023 |
| Grenland Stillasutleie AS | Porsgrunn | 2013 |