| Gkon Industri AS | Oslo | 2020 |
| GL 3BYGG AS | Trondheim | 2008 |
| GL Bygg AS | Hamar | 2011 |
| GL Byggservice AS | Langhus | 2021 |
| GL Glass AS | Mandal | 2014 |
| GL Gruppen AS | Kopervik | 2016 |
| GL Installasjon AS | Finnsnes | 2023 |
| GL Invest 2023 AS | Finnsnes | 2023 |
| GL Larsen Entreprenør AS | Nedre Eggedal | 2009 |
| GL Montasje AS | Gardvik | 2026 |
| GL Prosjektservice AS | Kopervik | 1998 |
| GL Yachtverglasung GmbH | De-25469 Halstenbek | 2019 |
| Gl-Bygg AS | Overhalla | 2015 |
| Gla'Snekkern AS | Trysil | 2017 |
| Glaciercore I AS | Sandane | 2026 |
| Glaciercore II AS | Sandane | 2026 |
| Gladheim Multiservice AS | Veggli | 2016 |
| Glady AS | Oslo | 2024 |
| Glajo Holding AS | Tiller | 2020 |
| Glamsland Maskin AS | Lillesand | 2017 |
| Glaneren Vann- Og Avløpslag SA | Oslo | 2024 |
| Glans Entrepenør AS | Oslo | 2025 |
| Glantz GmbH & Co KG | Hervik | 2006 |
| Glaseksperten | Dk-9800 Hjørring | 2017 |
| Glasomera I Alingsås AB | Halden | 2008 |
| Glass & Fasade AS | Stavanger | 2023 |
| Glass & Karmer Norge AS | Bergen | 2014 |
| Glass & Montasje AS | Bjerkreim | 2012 |
| Glass & Tre AS | Os | 2013 |
| Glass AS | Vettre | 2025 |
| Glass I Nor Solskjerming AS | Narvik | 2005 |
| Glass Larsen AS | Vanse | 2026 |
| Glass Og Dørservice AS | Namsos | 2021 |
| Glass Og Fasade Design AS | Fredrikstad | 2023 |
| Glass Og Fasade Kongsvinger AS | Matrand | 2006 |
| Glass Og Ramme AS | Steinkjer | 1999 |
| Glass Og Speil AS Alf Ole Og Lubis Glass Og Rammeverksted | Narvik | 1982 |
| Glass Senteret Eiker AS | Krokstadelva | 2002 |
| Glass Sikring AS | Sandane | 1999 |
| Glass Star AS | Tromsø | 2026 |
| Glass, Service Og Montasje AS | Oslo | 2017 |
| Glass-Rønning Invest AS | Nøtterøy | 2005 |
| Glass-Service Alta AS | Alta | 2022 |
| Glass-Service AS | Dal | 2008 |
| Glass-Service Svendsen Og Sønn AS | Oslo | 2018 |
| Glassbjerget AS | Kokstad | 1980 |
| Glassbua Kirkenær AS | Kirkenær | 2003 |
| Glasscon Drift AS | Fauske | 2022 |
| Glassekspert Gjesdal Knarvik AS | Isdalstø | 2004 |
| Glassenteret AS | Haugesund | 2022 |
| Glassfiber Teknikk 1 AS | Barkåker | 2024 |
| Glassfiber Teknikk AS | Barkåker | 2015 |
| Glassgrossisten AS | Sandnes | 2010 |
| Glassgruppen AS | Larvik | 2021 |
| Glasskompaniet AS | Frogner | 1989 |
| Glasslåven AS | Hønefoss | 2011 |
| Glassmakeren AS | Trondheim | 1983 |
| Glassmester 1 AS | Fjellhamar | 2006 |
| Glassmester a. Appelbom AS | Tromsø | 2007 |
| Glassmester Bodø AS | Bodø | 2016 |
| Glassmester Erling Eriksen AS | Tromsø | 2006 |
| Glassmester Hogstad AS | Kongsberg | 2022 |
| Glassmester Kaare Nilsen AS | Olsvik | 1993 |
| Glassmester Kai Dysthe AS | Sandefjord | 2016 |
| Glassmester Karl Olav Larsen A/S | His | 1980 |
| Glassmester Ketil Martinsen AS | Harstad | 2014 |
| Glassmester Knut Furulund Eft AS | Oslo | 1993 |
| Glassmester Larsen AS | Bjorbekk | 2023 |
| Glassmester Odd Foss AS | Asker | 1991 |
| Glassmester Olsen AS | Drammen | 2022 |
| Glassmester Reidar Hesler AS | Strømmen | 1986 |
| Glassmester Rolf Berglund AS | Skjetten | 2009 |
| Glassmester Svendsen AS | Oslo | 2005 |
| Glassmester Vegard Austevoll AS | Nesttun | 2025 |
| GLASSMESTER1 K.Larsen AS | Tiller | 2018 |
| Glassmesteren-Bergen AS | Valestrandsfossen | 2012 |
| Glasspesialisten Bodø AS | Bodø | 2014 |
| Glassproffen AS | Bodø | 2015 |
| Glasstek Avd Østfold AS | Moss | 2022 |
| Glasstek Innlandet Uniglass AS | Løten | 2012 |
| Glassteknikk AS | Fredrikstad | 2022 |
| Glasstjenester AS | Tranby | 2007 |
| Glassy AS | Dal | 2020 |
| Glastop Oü Nuf | Tromsø | 2020 |
| Glaz-Ter Pawel Dymkowski | 74240 Lipiany | 2008 |
| GLB Holding AS | Overhalla | 1988 |
| Gleco AB | Se-265 31 Åstorp | 2026 |
| Gleitschnellbau GmbH | De-83395 Freilassing | 2026 |
| Glendrange Eiendom AS | Søgne | 2023 |
| Glendrange Holding AS | Søgne | 2019 |
| Glenn Nikolaysen AS | Ytre Enebakk | 2008 |
| Glenn Syvertsen AS | Gran | 2018 |
| Glenne Bygg AS | Hof | 1989 |
| Glenn\'s Tømrertjenester AS | Hjellestad | 2025 |
| Glesum AS | Åsgreina | 2020 |
| Gleto Holding AS | Dal | 2024 |
| GLH Maskin AS | Stokke | 2014 |
| Glidebetong AS | Molde | 1992 |
| Glimre AS | Ål | 2019 |
| Glimt Bygg AS | Våler I Østfold | 2024 |