| Hekk Og Hage AS | Administrative & support | 2001 |
| Hekneby Consulting AS | Professional & scientific | 2009 |
| Helge Haugen AS | Construction | 2024 |
| Helge Løvdal AS | Financial services | 2013 |
| Helge Og Inger Invest AS | Real estate | 2007 |
| Helge Røsstad Holding AS | Real estate | 2017 |
| Helge Skeie Holding AS | Financial services | 2005 |
| Helland Hårstudio AS | Other services | 2019 |
| Hellemyr Appartements AS | Real estate | 2021 |
| Hellemyr Hårspa AS | Other services | 1999 |
| Hellemyrbakken Eiendom AS | | 2025 |
| Hellinga AS | | 2026 |
| Hello Bangkok Thai Street Food AS | Wholesale & retail | 2025 |
| Hellum Holdings AS | | 2022 |
| Hellåslia AS | Construction | 2008 |
| Helse Huset AS | Health & social care | 2010 |
| Helse Markens AS | Wholesale & retail | 2025 |
| Helse Øst AS | Health & social care | 2022 |
| Helsekostsentralen AS | Wholesale & retail | 1998 |
| Helselag Invest AS | Real estate | 2017 |
| Helseringen Norge AS | Health & social care | 2010 |
| Helseteam AS | Health & social care | 2008 |
| Helto Holding AS | Health & social care | 2005 |
| Henemi Eiendom AS | Professional & scientific | 2007 |
| Hennig-Olsen Eiendom AS | Manufacturing | 2004 |
| Hennig-Olsen Holding AS | Manufacturing | 1991 |
| Hennig-Olsen Is AS | Manufacturing | 2004 |
| Henrik Olai AS | Real estate | 2017 |
| Henrik Wergelands Gate 11 AS | Real estate | 2023 |
| Henrik Wergelandsgate 50 AS | Real estate | 2018 |
| Henriks Herre AS | Wholesale & retail | 1985 |
| Heodse Invest AS | | 2020 |
| Heptehei Sol- Og Batteripark AS | Energy | 2025 |
| Herkimer AS | Arts & recreation | 2019 |
| Herlofsen & Hem Da | Wholesale & retail | 2024 |
| Herreklippen AS | Other services | 2020 |
| Herstel AS | Administrative & support | 2025 |
| Herøya Invest AS | Real estate | 2005 |
| Herøya Utbyggingsselskap AS | Real estate | 1988 |
| Hestiia Sørlandet AS | Wholesale & retail | 2011 |
| Heståsen Bygg 1 AS | Real estate | 2016 |
| Heståsen Bygg 3 AS | Real estate | 2016 |
| Heståsen Eiendom AS | Other services | 2017 |
| Heståsen Utvikling AS | Real estate | 2014 |
| Hevrøy Holding AS | Real estate | 2018 |
| Heys Holding AS | Real estate | 2014 |
| Hge Entreprenør AS | Real estate | 2024 |
| Hgi Invest AS | Financial services | 2018 |
| HH Interiorconsulting AS | Wholesale & retail | 2017 |
| HH Sushi AS | Hospitality | 2011 |
| HHK Invest AS | Financial services | 2010 |
| HHR AS | Professional & scientific | 2015 |
| HI5 Group AS | Wholesale & retail | 2020 |
| Hidan Eiendom AS | Real estate | 2023 |
| Hidden Booking AS | Administrative & support | 2022 |
| Hifi Kristiansand AS | Wholesale & retail | 2009 |
| Hifo AS | Real estate | 2009 |
| Hilde Myren AS | Health & social care | 2019 |
| Hillcon AS | Real estate | 2017 |
| Hille & Hennie AS | Real estate | 2026 |
| Hillegarn Eiendom AS | Real estate | 2007 |
| Hillegarn Eiendomsdrift AS | Real estate | 2004 |
| Hillesund Holding AS | Financial services | 2011 |
| Hillside AS | Professional & scientific | 1993 |
| Hilltop AS | Professional & scientific | 2005 |
| Hilmarsens Elektriske AS | Construction | 1993 |
| Hina Consulting AS | Transport & logistics | 2011 |
| Hinder Holding AS | Real estate | 2023 |
| Hindersland Invest AS | | 2025 |
| Hinrok Invest AS | | 2025 |
| Hirst-Sunde Holding AS | | 2026 |
| Hirst-Sunde Medisinske AS | | 2026 |
| Hissingdalen AS | Real estate | 2012 |
| Hive Autonomy AS | Information & communication | 2022 |
| Hive Autonomy Operations AS | Professional & scientific | 2026 |
| Hjah Invest AS | | 2018 |
| Hjalmar Aateigen AS | Construction | 1978 |
| Hjemlevering Rasul AS | Transport & logistics | 2022 |
| Hjerte Foto AS | Professional & scientific | 2014 |
| Hjertelykke AS | Wholesale & retail | 2025 |
| Hjetland Holding AS | | 2024 |
| Hjort Holding AS | Construction | 2022 |
| Hjorthaug Rådgivning AS | Professional & scientific | 2013 |
| Hjorthaug Rådgivning Og Invest AS | Professional & scientific | 2007 |
| Hjørnet 2 AS | Real estate | 2017 |
| Hjørnet 4 AS | Real estate | 2017 |
| Hjørnet 5 AS | Real estate | 2017 |
| Hjørnet 6 AS | Real estate | 2017 |
| HK Invest AS | Real estate | 2005 |
| HK Motor Holding AS | Real estate | 2013 |
| HK Motorservice AS | Wholesale & retail | 2025 |
| HK Motorservice Kristiansand Eiendom AS | Real estate | 1994 |
| HK Rør AS | Construction | 2018 |
| HK Utvikling AS | Real estate | 2020 |
| Hk-Operations AS | | 2025 |
| HKJ AS | Administrative & support | 2019 |
| HKR AS | | 2023 |
| HKS Maskin AS | Construction | 2024 |
| Hltf Eiendom AS | Arts & recreation | 2019 |
| HM Invest AS | Administrative & support | 2022 |