| Gulosen Eiendom AS | Trondheim | 2007 |
| Gulset Butikkeiendom AS | Oslo | 1999 |
| Gulset Eiendomsinvest AS | Skien | 1999 |
| Gulseth Eiendom AS | Oslo | 2024 |
| Gulsetveien 80 AS | Skien | 2018 |
| Gulshagen III AS | Slependen | 2020 |
| Gulskogen Bolig- Og Næringsutvikling AS | Reistad | 2009 |
| Gulskogen Eiendom AS | Drammen | 2023 |
| Gulskogen Senter AS | Surnadal | 2016 |
| Gulskogen Stasjon 2 Bolig AS | Oslo | 2025 |
| Gulskogen Stasjon 3 Bolig AS | Oslo | 2025 |
| Gulskogen Stasjon 5 Bolig AS | Oslo | 2025 |
| Gulskogen Utviklingsselskap AS | Drammen | 2017 |
| Gulsrud Invest AS | Blommenholm | 1987 |
| Gulsteinen Invest AS | Farsund | 2008 |
| Gulsvik Fjord Til Fjell AS | Flå | 2021 |
| Gulv Under Føttene AS | Mjøndalen | 2021 |
| Gulvgruppen Holding AS | Kristiansand S | 2013 |
| Guma Eiendom AS | Levanger | 2022 |
| Guma Invest AS | Rådal | 2023 |
| Gumabe AS | Haugesund | 2005 |
| Gummi-Centralen Eiendom AS | Asker | 1986 |
| Gummikrysset Eiendom AS | Hønefoss | 2019 |
| Gummiskogen AS | Hønefoss | 2019 |
| Gumpen Bileiendom AS | Kristiansand S | 2018 |
| Gumpen Bileiendom Holding AS | Kristiansand S | 2018 |
| Gumpen Eiendom AS | Kristiansand S | 2002 |
| Gumpens Bilutleie AS | Kristiansand S | 1973 |
| Gumpens Invest AS | Kristiansand S | 2018 |
| Gumø AS | Reistad | 2005 |
| Gunde Kapital AS | Bærums Verk | 2019 |
| Gunder Solvesen Eiendom AS | Porsgrunn | 2023 |
| Gunders AS | Holmestrand | 2005 |
| Gunders Boliger AS | Tolvsrød | 2023 |
| Gunders Eiendom AS | Stange | 2020 |
| Gunders Holding AS | Ålesund | 2018 |
| Gunders Invest AS | Tolvsrød | 2023 |
| Gundersen Eiendom Aalesund AS | Ålesund | 2018 |
| Gundersen Eiendom AS | Hafslundsøy | 1982 |
| Gundersen Eiendom AS | Larvik | 1997 |
| Gundersen Eiendom Kragerø AS | Kragerø | 2025 |
| Gundersen Gruppen AS | Kapp | 2006 |
| Gundersen Gården AS | Bodø | 1999 |
| Gundersen Invest AS | Kapp | 2014 |
| Gundersen Living AS | Kapp | 2019 |
| Gundersen Muskel & Maskin AS | Brattholmen | 2023 |
| Gundersen Utvikling AS | Skien | 2019 |
| Gundersens Holding AS | Halden | 2021 |
| Gundersrud Forretningsbygg 2 AS | Nesøya | 2020 |
| Gunderstad Holding AS | Førresfjorden | 2022 |
| Gundesø Invest AS | Oslo | 2007 |
| Gunerius AS | Aurskog | 2005 |
| Gunerius Holding AS | Askim | 2021 |
| Gunerius Invest AS | Kristiansand S | 2000 |
| Gungne Invest AS | Tiller | 2019 |
| Gunhild AS | Stavanger | 2005 |
| Gunhild Strøm AS | Rødberg | 1990 |
| Gunhildvågen Industripark AS | Florø | 2012 |
| Gunhildvågen Utvikling AS | Florø | 2012 |
| Gunn Eiendom AS | Skedsmokorset | 2020 |
| Gunn's Holding AS | Sandnes | 2015 |
| Gunnar Aase AS | Alversund | 2006 |
| Gunnar Aase Eiendom AS | Øvre Ervik | 1998 |
| Gunnar Borgen Eiendom AS | Skien | 1999 |
| Gunnar Eriksen AS | Finnsnes | 1987 |
| Gunnar Invest AS | Jørpeland | 2024 |
| Gunnar JP Vold AS | Sirevåg | 1999 |
| Gunnar Jørgensen Eiendom AS | Ålesund | 2000 |
| Gunnar Klo & Co Eiendom AS | Myre | 1996 |
| Gunnar Knudsens Veg 144 AS | Skien | 2024 |
| Gunnar Knutsen Eiendom 2 AS | Asker | 2007 |
| Gunnar Knutsen Holding AS | Asker | 2007 |
| Gunnar Knutsen Invest AS | Asker | 2007 |
| Gunnar Lande Holding AS | Tingvatn | 2019 |
| Gunnar Landgraff Eiendom AS | Haslum | 2005 |
| Gunnar Magnussen Eiendom AS | Sarpsborg | 2015 |
| Gunnar Myklebust AS | Uskedalen | 2021 |
| Gunnar Nilsens Gate 25 AS | Oslo | 2013 |
| Gunnar Nilsens Gate Eiendom AS | Fredrikstad | 2018 |
| Gunnar Ottesen Holding AS | Alta | 2008 |
| Gunnar Ruud Eiendom AS | Oslo | 1947 |
| Gunnar Ruud Invest AS | Oslo | 2005 |
| Gunnar Røssland Eigedom AS | Husnes | 2006 |
| Gunnar Schjelderups Vei 11 AS | Oslo | 2000 |
| Gunnar Stenberg Eiendom AS | Oslo | 1996 |
| Gunnar Syversen Eiendom AS | Fredrikstad | 2019 |
| Gunnar Syversen Holding AS | Fredrikstad | 2019 |
| Gunnar Vollset AS | Tiller | 1966 |
| Gunnarsrud AS | Drammen | 2026 |
| Gunnelandet 9 AS | Gressvik | 2014 |
| Gunnerius Holding AS | Tolvsrød | 2017 |
| Gunners AS | Bergen | 2005 |
| Gunnerud Eiendom AS | Drammen | 2002 |
| Gunnesmæl Invest AS | Trondheim | 2012 |
| Gunnigt. 6 AS | Blommenholm | 2006 |
| Gunnilåra Eiendom AS | Selbu | 2008 |
| Gunnis AS | Vollen | 1994 |
| Gunniver AS | Tromsø | 2014 |
| Guno AS | Heimdal | 2008 |
| Gunsti Eiendom AS | Søgne | 2025 |