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| Gatt Consulting & Entreprenør AS | Stord | 2026 |
| Gattulven AB | Se-475 32 Ökerö | 2018 |
| Gauden AS | Åkrehamn | 2026 |
| Gaugernakkel AS | Sandefjord | 2024 |
| Gaul Invest AS | Ålesund | 2024 |
| Gaula Regnskap AS | Ler | 1989 |
| Gauldalsadvokatene AS | Støren | 2021 |
| Gausdal Bioconsulting AS | Loddefjord | 2023 |
| Gausdal Biogass Da | Østre Gausdal | 2023 |
| Gausdal Consult AS | Oslo | 2020 |
| Gausdal Eiendomsservice AS | Østre Gausdal | 2019 |
| Gaustech AS | Oslo | 2015 |
| Gaute Consulting AS | Stavanger | 2005 |
| Gaute Moen Regnskap AS | Stavanger | 1987 |
| Gautech AS | Sauda | 2023 |
| Gautestad Takst Og Konsult AS | Evje | 2012 |
| Gavelstad Consulting AS | Trollåsen | 2016 |
| Gavgrid AS | Søreidgrend | 2022 |
| Gaviota AS | Ålesund | 2006 |
| Gaztransport & Technigaz | 78470 Saint-Remy-Les-Chevreuse | 2020 |
| GB Investments AS | Steinsland | 2023 |
| GB Kapital AS | Oslo | 2016 |
| GB Ocean AS | Mandal | 2017 |
| GB Offshore Limited | Plymouth Pl3 0Ra England | 2018 |
| GB Rådgivning AS | Korsvegen | 2010 |
| GB Value AS | Harøy | 2014 |
| Gba Engineering and Construction Limited | Sandnes | 2007 |
| Gba Marine AS | Kolbjørnsvik | 2004 |
| Gba Prosjekt- Og Anleggsledelse AS | Skien | 2025 |
| Gba VVS Rådgivning AS | Stjørdal | 2015 |
| Gbbt AS | Asker | 2011 |
| GBG AS | Blommenholm | 2009 |
| Gbhj AS | Jar | 2022 |
| Gbi Holding AS | Bergen | 2004 |
| GBJ Admin Service AS | Kråkerøy | 1987 |
| GBJ Consult AS | Oslo | 2011 |
| GBK AS | Oslo | 2022 |
| GBK Services Ltd Nuf | London Ec1V 2Nx | 2026 |
| GBR AS | Haslum | 2008 |
| GC Sport AS | Svelvik | 2019 |
| Gce Node Service AS | Kristiansand S | 2015 |
| Gce-Group | 7334Dl Apeldoorn | 2023 |
| GCG AS | Oslo | 1972 |
| Gci AS | Ranheim | 2017 |
| GCM Consulting AS | Oslo | 2013 |
| GCM Consulting Nuf | Oslo | 2018 |
| GCP Aqua AS | Drammen | 2024 |
| GCP German Cathodic Protection GmbH & Co KG | 45307 Essen | 2010 |
| GCP Materials AS | Kongsvinger | 2024 |
| GCP Packaging AS | Drammen | 2024 |
| GD Consulting Norway Ltd Nuf | Risør | 2006 |
| GD Support AS | Eidsvoll | 2019 |
| GDB Controls | 1948 Dk Beverwijk | 2018 |
| GDD Consulting AS | Stavanger | 2023 |
| GDH Investments S.A.R.L | Oslo | 2002 |
| Gdtek AS | Oslo | 2011 |
| Ge Consulting AS | Hafrsfjord | 2012 |
| Ge Energy | Lincoln Ln2 2Nr England | 2008 |
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| Ge Oil & Gas Australia Pty Ltd | Jandakot Wa 6164 | 2015 |
| Ge Power Norway AS | Oslo | 1998 |
| Ge Renewable Norway AS | Oslo | 2006 |
| Ge Sensing Emea Unlimited Company | Ie-Shannon Co Clare V14 V992 | 2017 |
| Gea Bischoff GmbH | De-45136 Essen | 2021 |
| Gea Food Solutions Nordic Norsk Avdeling Av Utenlandsk Foretak Nuf | Oslo | 1996 |
| Gea Liquid Technologies | Dk-8660 Skanderborg | 2023 |
| Gea Liquid Technologies Germany GmbH | De-31157 Sarstedt | 2019 |
| Gea Scandinavia AS | Trondheim | 2026 |
| Gean Invest AS | Tau | 2008 |
| Gear Tech Norway AS | Rjukan | 2024 |
| Gearbox AS | Oslo | 2024 |
| Gearconsult AS | Oslo | 1998 |
| Geb Holding AS | Sandnes | 2005 |
| Geber AS | Trondheim | 2005 |
| Gebhardt Fördertechnik GmbH | 74889 Sinsheim | 2017 |
| Gebhardt Marketing Services GmbH | 74889 Sinsheim | 2017 |
| Gebrüder Haldan GmbH & Co KG | Asker | 2006 |
| Gec AS | Jar | 2024 |
| Gec Holding AS | Trondheim | 1988 |
| Gedeon Richter Nordics AB | Se-113 43 Stockholm | 2012 |
| Gee Maritime Projects AS | Sogndal | 2025 |
| Gee-Aitch Communications Limited | Po5 1Pp Southsea | 2014 |
| Geelmuyden Kiese AS | Oslo | 1995 |
| Geelmuyden.Kiese | 1162 København K | 2016 |
| Geelmuyden.Kiese Gruppen AS | Oslo | 2006 |
| Geerts Automatisering BV | 3911 Cj Rhenen | 2010 |
| Geeses AS | Stavanger | 2024 |
| Geeves AS | Oslo | 2020 |
| Gefi AS | Rykkinn | 2016 |
| Gefion Engineering AS | Mathopen | 1999 |
| Gefjon Holding AS | Kristiansand S | 2014 |
| Gefu Consulting AS | Oslo | 2022 |
| Gefyl Invest AS | Nesttun | 2017 |
| Gegenpress AS | Trondheim | 2011 |
| Geh Holding AS | Grimstad | 2019 |
| Gehe Arkitekter AS | Oslo | 2014 |
| Geia AS | Hvalstad | 2022 |
| Geibry Holding AS | Olden | 2008 |
| Geilen Trykk & Design AS | Sandnes | 2023 |