| Granbo Holding AS | Leinstrand | 2023 |
| Grand Bygg AS | Vollen | 2024 |
| Grand Solutions AS | Lørenskog | 2024 |
| Granda AS | Oslo | 2022 |
| Grandahl Bygg AS | Greåker | 2013 |
| Grandahl Rør AS | Halden | 2023 |
| Grandalen Holding AS | Eidsvoll | 2012 |
| Grande AS | Horten | 2007 |
| Grande Bygg AS | Vuku | 2017 |
| Grande Entreprenør AS | Verdal | 1980 |
| Grane Hytteservice AS | Trofors | 2008 |
| Grane/Søreng AS | Mo I Rana | 2012 |
| Graneishaugen AS | Etnedal | 2025 |
| Granerød Miljøsanering AS | Tjodalyng | 2013 |
| Granhaug Peismontering AS | Fjerdingby | 2022 |
| Granhaugen Graving & Transport AS | Stokke | 1999 |
| Granheim AS | Næroset | 2024 |
| Granheim Mur & Flisservice Nuf | Gardvik | 2014 |
| Granholt Bygg AS | Halden | 2023 |
| Granila SK S.R.O. | Sk-085 01 Bardejov | 2020 |
| Granitor Electro AB | Se-811 25 Sandviken | 2014 |
| Granitor Electro AS | Drammen | 2011 |
| Granitor Norway AS | Drammen | 2014 |
| Granitor Norway Holding AS | Drammen | 2018 |
| Granitor Systems AS | Drammen | 2014 |
| Granittveien 2 AS | Ytre Enebakk | 2015 |
| Granli Isolering Og Betongsaging AS | Skarnes | 2009 |
| Granli Maskin Da | Røn | 2001 |
| Granli Rør AS | Ørje | 2011 |
| Granli.No Blåseisolering Innlandet AS | Skarnes | 2017 |
| Granli.No Blåseisolering Viken AS | Skarnes | 2018 |
| Granli.No Entreprenør AS | Skarnes | 2018 |
| Granlund Entreprenør AS | Selåsvatn | 2008 |
| Granlund Inneklima AS | Kongsvinger | 2021 |
| Granmoveien Holding AS | Hokksund | 2005 |
| Granmoveien Invest AS | Hokksund | 2020 |
| Grannes Maskin AS | Høylandet | 1995 |
| Grannes VVS AS | Namsos | 1996 |
| Granqvistarn V Lennart Granqvist | Se-83693 Häggenås | 2013 |
| Granrud Elektriske AS | Oslo | 1991 |
| Granseth Maskin AS | Dokka | 2018 |
| Granstøl AS | Kvelde | 2021 |
| Grant Bygg & Eiendom AS | Skodje | 2019 |
| Granvin Maskinstasjon AS | Granvin | 2021 |
| Granvin Stasjon AS | Granvin | 1989 |
| Granås Maskin AS | Nannestad | 2006 |
| Granåsen Bygg AS | Trondheim | 2012 |
| Gratangen Multiservice AS | Gratangen | 2020 |
| Gratra Anlegg AS | Drammen | 2022 |
| Grav & Spreng AS | Tromsø | 1998 |
| Grav Holding AS | Spydeberg | 2021 |
| Grav Lagerseksjoner AS | Trøgstad | 2023 |
| Grav Litt AS | Moss | 2016 |
| Grav Maskin AS | Lørenskog | 2017 |
| Grav Og Bygg AS | Spydeberg | 2024 |
| Grav Og Plan AS | Lakselv | 2015 |
| Grav's Montering & Vedlikehold Limited Nuf | Ramnes | 2009 |
| Grava AS | Bryne | 2020 |
| Grava Entreprenør AS | Bryne | 2008 |
| Gravassryggen AS | Egersund | 2013 |
| Gravcompani Maskin Ans | Budalen | 2000 |
| Gravdal Blikkenslagerverksted AS | Larvik | 1987 |
| Gravdal Bygg AS | Førde | 2007 |
| Gravdal Consulting AS | Strandebarm | 2026 |
| Gravdal VVS AS | Reistad | 2016 |
| Gravdalgruppa AS | Førde | 1996 |
| Grave Og Planering AS | Gjerdrum | 1969 |
| Grave Og Riveteknikk AS | Vinterbro | 2011 |
| Grave Og Sprengningsservice AS | Frei | 1997 |
| Grave Og Transporttjeneste Ans | Kirkenes | 1988 |
| Grave Team AS | Gamle Fredrikstad | 2021 |
| Gravefirmaet Anton Almehagen AS | Sandefjord | 2023 |
| Gravehjelpen Runar Walther AS | Hafslundsøy | 2020 |
| Gravelars AS | Fauske | 2021 |
| Gravelseter Maskin & Transport AS | Etne | 2017 |
| Gravemaskin 1 AS | Kvaløya | 2007 |
| Gravemesteren AS | Nordkjosbotn | 2022 |
| Gravepartner AS | Hammerfest | 2014 |
| Graver AS | Leinstrand | 2004 |
| Graver Holding AS | Leinstrand | 2005 |
| Graver'N AS | Inderøy | 2018 |
| Graver'N Innlandet AS | Lillehammer | 2025 |
| GRAVER1 AS | Jar | 2013 |
| Gravere AS | Lørenskog | 2018 |
| Gravermoen Holding AS | Kolbotn | 2005 |
| Gravermoen Klima AS | Tyristrand | 2018 |
| Graveservice AS | Båtsfjord | 1993 |
| Graveservice K Rønning AS | Klæbu | 2001 |
| Graveservice Kirkenes AS | Hesseng | 2023 |
| Graveservice Kragerø AS | Sundebru | 2014 |
| Graveservice Sandstad AS | Oslo | 2016 |
| Graveservice Vestfold AS | Stokke | 2001 |
| Graveserviceoslo AS | Oslo | 2024 |
| Graveteam AS | Gamle Fredrikstad | 2025 |
| Graveteknikk AS | Mo I Rana | 2002 |
| Graveteknikk AS | Nordre Frogn | 2004 |
| Gravetjenester AS | Hurdal | 2015 |
| Gravetjenester Bardu AS | Bardu | 2025 |
| Gravfirma Jan Lundblad AB | Mysen | 2002 |
| Gravhaugen AS | Elverum | 2021 |