| Get Julie Granum AS | Hospitality | 2023 |
| Gevingåsen AS | Real estate | 2002 |
| Gi Lyd AS | Arts & recreation | 2020 |
| Giebnie Holding AS | | 2021 |
| Gikki AS | Wholesale & retail | 2023 |
| GJB AS | Real estate | 2004 |
| Gjøken Gjøken AS | Hospitality | 2020 |
| Gjølme Pukkverk AS | Mining & quarrying | 2022 |
| Gke Holding AS | Professional & scientific | 2013 |
| Gladsø Invest AS | | 2025 |
| Gligaard Holding AS | | 2019 |
| Global Marked Stjørdal AS | Wholesale & retail | 2026 |
| God Flyt Va Teknikk AS | Water & waste | 2024 |
| Gods & Gull AS | Wholesale & retail | 2022 |
| Green Orbit AS | Professional & scientific | 2020 |
| Greenfox Group AS | Information & communication | 2021 |
| Greenfox Marine AS | Information & communication | 2020 |
| Greenfox Solutions AS | Information & communication | 2021 |
| Grendal Holding AS | | 2025 |
| Grong Pukkverk AS | Mining & quarrying | 1997 |
| Gråbrek Eiendom AS | Real estate | 1989 |
| Gråbrek Holding AS | | 1996 |
| Gullranka AS | | 2025 |
| Gus AS | | 2021 |
| Gårdsbua AS | Wholesale & retail | 2019 |
| H2 Marketplace AS | Information & communication | 2024 |
| Haab Holding AS | Real estate | 2004 |
| Hadron AS | Professional & scientific | 2019 |
| Hagia Grunnan AS | Wholesale & retail | 1984 |
| Halle Eiendom AS | Real estate | 2001 |
| Halle Holding AS | Construction | 2002 |
| Halsen Sykepleieartikler AS | Wholesale & retail | 2004 |
| Hammer Holding AS | Agriculture & fishing | 2013 |
| Hammer Planteskole & Hagesenter AS | Agriculture & fishing | 2013 |
| Hanofa AS | Hospitality | 1992 |
| Hastadklev Bil Og Fritid AS | Other services | 2020 |
| Hastadklev Holding AS | Other services | 2012 |
| Hastadklev Verksted Stjørdal AS | Other services | 2018 |
| Haugberg Holding AS | Financial services | 2021 |
| Haupin AS | Manufacturing | 2022 |
| Hav AS | | 2023 |
| Havani AS | Professional & scientific | 2010 |
| Havani Eiendom AS | Real estate | 2010 |
| Havna Båtservice Eiendom AS | Real estate | 2003 |
| Havna Panorama AS | Real estate | 2018 |
| Havnepiren Eiendomsutvikling AS | Real estate | 2008 |
| He Restaurantdrift AS | Hospitality | 2016 |
| Hegra Bygg AS | Construction | 2001 |
| Hegra Utvikling AS | Real estate | 2026 |
| Hegratunet AS | Real estate | 2016 |
| Heia-Bygg AS | Construction | 2023 |
| Helberg Eiendom AS | Manufacturing | 1987 |
| Helberg Holding AS | Manufacturing | 2003 |
| Helitrans AS | Transport & logistics | 1998 |
| Hell Auto Holding AS | Wholesale & retail | 2005 |
| Hell Bygg AS | Real estate | 2014 |
| Hell Eiendom II AS | Real estate | 2010 |
| Hell Frisør AS | Other services | 2022 |
| Hell Kulturutvikling AS | Arts & recreation | 2018 |
| Hell Media AS | Professional & scientific | 2013 |
| Hell Musikk Ans | Arts & recreation | 1999 |
| Hell Tango Da | Education | 2023 |
| Hell Treningstudio AS | Arts & recreation | 2005 |
| Hellsenteret AS | Real estate | 1999 |
| Helsemagasinet AS | Wholesale & retail | 1999 |
| Hernes AS | Construction | 2005 |
| Hernes Eiendom AS | Real estate | 2004 |
| Hernes Transport AS | Transport & logistics | 1987 |
| Hestvik Holding AS | Transport & logistics | 2023 |
| Hitstar Invest AS | | 2018 |
| Hjalmasetr AS | Real estate | 2025 |
| Hjellegjerde Holding AS | Real estate | 2023 |
| Hjellnes AS | Transport & logistics | 2006 |
| Hjellnes Transport AS | Transport & logistics | 2013 |
| Hjelpdal Da | Agriculture & fishing | 2014 |
| Hjelseng Eiendom AS | Real estate | 2006 |
| Hjelseng Gård AS | Administrative & support | 2015 |
| HLB Konsult AS | Professional & scientific | 2016 |
| HLV Holding AS | | 2023 |
| HMF Midt Norge AS | Wholesale & retail | 2024 |
| HN Finance AS | | 2026 |
| Hognesaunet AS | Real estate | 2025 |
| Hognesaunveien 98 AS | Real estate | 2012 |
| Holmen Eiendom AS | Real estate | 1990 |
| Holmen Næring AS | Real estate | 2025 |
| Hommelvik Panorama AS | Real estate | 2015 |
| Hopp Trøndelag AS | Administrative & support | 2024 |
| Horsefactory Horses AS | Agriculture & fishing | 2015 |
| Hovden-Invest AS | Real estate | 2019 |
| Hoven & Rønsåsbjørg Eiendom AS | Real estate | 2026 |
| Hoven Holding AS | | 2026 |
| Hovstad Samdrift Da | Agriculture & fishing | 2001 |
| Hudlege Stenersen AS | Health & social care | 2015 |
| Husby Bolig AS | Real estate | 2004 |
| Husbyåsen Utbyggingsselskap AS | Real estate | 2006 |
| Husfliden AS | Wholesale & retail | 1965 |
| Husflidens Hus AS | Wholesale & retail | 1997 |
| Hårloftet AS | Other services | 2017 |
| Hørselslaben AS | Manufacturing | 2009 |
| Høy Puls AS | Wholesale & retail | 1998 |