| Green Building Holding AS | | 2022 |
| Green Digital Wave AS | Professional & scientific | 2020 |
| Greenlander AS | Administrative & support | 2016 |
| Greger Eiendom AS | Real estate | 2011 |
| Greka AS | Financial services | 2005 |
| Grev Mortensen Invest AS | | 2025 |
| Griff Holding AS | | 2025 |
| Griffen Holding AS | | 2024 |
| Grillos Pizzeria AS | Hospitality | 2016 |
| Grimsholm Eiendom AS | Real estate | 1996 |
| Grimsholm Fiskedrift AS | Agriculture & fishing | 2015 |
| Grimsholm Holding AS | Real estate | 2017 |
| Gro Skaar-Ing AS | Professional & scientific | 2024 |
| Growing Freedom AS | Education | 2020 |
| Grønneg 32/34/36 Ans | Real estate | 1994 |
| Grønnegata 32 AS | Real estate | 2012 |
| Grønnegaten 52-56 AS | Households | 1960 |
| Grønnegt. 58/60 AS | Real estate | 2012 |
| Grønnporten AS | Financial services | 2005 |
| Grønt Landskap AS | Administrative & support | 2019 |
| Grøtsund Industripark AS | Real estate | 2024 |
| Gründerhjelpa AS | Professional & scientific | 2025 |
| Gt-Holding AS | | 2018 |
| Guarani AS | Professional & scientific | 2011 |
| Gullhavet AS | Administrative & support | 2019 |
| Gullsmed Kristiansen AS | Wholesale & retail | 1995 |
| Gunniver AS | Real estate | 2014 |
| Gurgite Vasto AS | | 2020 |
| Guro Dahl AS | Health & social care | 2022 |
| Guttorm Holding AS | | 2022 |
| Gvvs AS | Construction | 2024 |
| Gyn Nord AS | Health & social care | 2024 |
| Gystad Eiendom AS | Real estate | 2017 |
| Gystad Holding AS | Real estate | 2019 |
| Gågaten AS Tromsø | Other services | 1993 |
| Gørrissen & Co AS | Real estate | 2005 |
| H Mydland AS | Manufacturing | 2002 |
| H-Media AS | Professional & scientific | 2020 |
| H2RK AS | Real estate | 2015 |
| H5P Group AS | Information & communication | 2013 |
| Haar by Mette AS | Other services | 2022 |
| Haave Sletten AS | Professional & scientific | 2025 |
| Habil AS | Real estate | 2017 |
| Habil Forvaltning AS | Real estate | 2017 |
| Habil Helse Norge AS | Professional & scientific | 2025 |
| Haeno Holding AS | | 2026 |
| Hag Eiendom Ans | Real estate | 1997 |
| Hagb. Kræmer AS | Real estate | 2017 |
| Hagefestn AS | Arts & recreation | 2022 |
| Hagen Johansens Vei Utleie AS | Real estate | 2025 |
| Hagen-Olsen Eiendom AS | Real estate | 1999 |
| Hagfors Holding AS | Construction | 2018 |
| Hagfors Maskin Da | Administrative & support | 2013 |
| Hahemm AS | | 2025 |
| Hakapik AS | Information & communication | 2025 |
| Halibut Arctic Capital AS | Professional & scientific | 2020 |
| Halvors Tradisjonsfisk AS | Manufacturing | 2008 |
| Halvorsen Agenturer AS | Wholesale & retail | 1996 |
| Halvorsen Drivstoff Og Eiendom AS | Wholesale & retail | 2005 |
| Hamna Friluftsbarnehage SA | Education | 1995 |
| Hampen AS | Wholesale & retail | 2022 |
| Hamperokken AS | Professional & scientific | 2015 |
| Handelshuset Ema AS | Real estate | 1989 |
| Haneseth Tromsø AS | Construction | 1987 |
| Hangar Drift AS | Transport & logistics | 2007 |
| Hans Egedes Gate 12 Harstad AS | Real estate | 2024 |
| Hans Åge Yndestad Holding AS | | 2017 |
| Hanso Eiendomsutvikling AS | Real estate | 2004 |
| Hanssen-Viklund Holding AS | | 2025 |
| Hansvoll Eiendom AS | Real estate | 2015 |
| Happyskin AS | Wholesale & retail | 2017 |
| Hardersen Invest AS | | 2025 |
| Harila Eiendom AS | Real estate | 2010 |
| Harila Holding AS | Real estate | 2009 |
| Harmoni Akupunkturklinikk AS | Health & social care | 2025 |
| Harmoni Thai AS | Other services | 2018 |
| Harstadbotn Dyreklinikk AS | Professional & scientific | 2021 |
| Hartvigsen Begravelsesbyrå Tromsø AS | Other services | 2002 |
| Haseid AS | Health & social care | 2001 |
| Hasetann AS | Health & social care | 2021 |
| Hass Holding AS | Construction | 2021 |
| Hasselberg Holding AS | Transport & logistics | 2002 |
| Hasselberg Transport AS | Transport & logistics | 1990 |
| Hatlen AS | Professional & scientific | 1999 |
| Hatteng Eiendom AS | Real estate | 2025 |
| Haugen Legetjenester AS | Health & social care | 2023 |
| Haugsnes Invest AS | | 2021 |
| Haugstua I AS | Wholesale & retail | 2005 |
| Havbåen AS | Agriculture & fishing | 2019 |
| Havna Hotell AS | Real estate | 1990 |
| HBT Pubdrift AS | Administrative & support | 2019 |
| HE1B AS | Professional & scientific | 2012 |
| Heave Blood & Die Da | Arts & recreation | 2017 |
| Hege E AS | Professional & scientific | 2016 |
| Hegn Arkitektur AS | Professional & scientific | 2025 |
| Hegra Eiendom AS | Professional & scientific | 2005 |
| Heia Mods AS | Real estate | 2017 |
| Heilovegen 23 Bolig AS | Real estate | 2017 |
| Heim Vertskap AS | Hospitality | 2025 |
| Heimdal Travel AS | Administrative & support | 2024 |