| Hovind AS | Information & communication | 2011 |
| Hovindbekken Eiendom AS | Real estate | 2013 |
| Hovinmoen Utvikling AS | Real estate | 2009 |
| Hovinv 11 Og 13 AS | Households | 1950 |
| Hovlding AS | | 2021 |
| Hovrud Norway Import Da | Wholesale & retail | 1996 |
| Hovseter Eiendom AS | Real estate | 2005 |
| Hovseter Frukt Og Grønt AS | Wholesale & retail | 2017 |
| Hovseter Grill AS | Hospitality | 2018 |
| Hovseter Kafe Ans | Hospitality | 1998 |
| Hovsgutua 10 Ans | Real estate | 2017 |
| Hovslager AS | Agriculture & fishing | 2012 |
| How Holding AS | Financial services | 2014 |
| Howard Holding AS | | 2005 |
| Howart Compliance Norge AS | Professional & scientific | 2019 |
| Howden Financial Advisory AS | Financial services | 2009 |
| Howden Norway AS | Financial services | 2005 |
| Howden Norway Marine & Energy AS | Financial services | 2022 |
| Howdhar Butikkdrift AS | Wholesale & retail | 2023 |
| Howdhar Drive AS | Transport & logistics | 2024 |
| Howdhar Holding AS | Wholesale & retail | 2023 |
| Howie Holding AS | Professional & scientific | 2011 |
| Howl Da | Arts & recreation | 2008 |
| Hox Holding AS | | 2020 |
| Hox Meedom Holding AS | Real estate | 2006 |
| Hox News AS | | 2021 |
| Hoxhol Da | Wholesale & retail | 2000 |
| Hoxma Agenda AS | Real estate | 2005 |
| Hoya Lens Sweden AB | Wholesale & retail | 2010 |
| Hoyerhold AS | | 2026 |
| Hoylu AS | | 2024 |
| Hoylu Norge AS | Information & communication | 2019 |
| Hoyoo Macaan Holding AS | | 2018 |
| Hozman Holding AS | | 2025 |
| Hoås Consult AS | Professional & scientific | 2024 |
| HP Consulting AS | Professional & scientific | 2012 |
| HP Fabrikker AS | Real estate | 1939 |
| HP International Sarl | Wholesale & retail | 2015 |
| Hpa Holding AS | Financial services | 2014 |
| HPF Consulting AS | Professional & scientific | 2023 |
| HPF Holding AS | | 2019 |
| HPH Holdco AS | | 2021 |
| Hphm Holding AS | | 2025 |
| HPK Eiendom AS | Real estate | 2018 |
| HPL Consulting AS | Professional & scientific | 2021 |
| HPL Prosjekt AS | Professional & scientific | 2008 |
| HPL Sparebøsse AS | Financial services | 2014 |
| Hpmc AS | Professional & scientific | 2013 |
| HPR Holding AS | Real estate | 2015 |
| HPS Collective AS | Education | 2025 |
| HQ Live AS | Information & communication | 2023 |
| HQP Norway AS | Wholesale & retail | 2019 |
| Hqtk Invest AS | Information & communication | 2020 |
| HR & Business AS | Professional & scientific | 2022 |
| HR & Co AS | Real estate | 2011 |
| HR & Stenseng AS | Other services | 2020 |
| HR Ekspertene AS | Professional & scientific | 2017 |
| HR Gruppen Capus AS | Administrative & support | 1986 |
| HR Huset AS | Professional & scientific | 2005 |
| HR Huset Management AS | Administrative & support | 2019 |
| HR Malerservice AS | Construction | 2018 |
| HR Nordic AS | Professional & scientific | 2022 |
| HR Nordic Holding AS | Information & communication | 2018 |
| HR Nordic Invest AS | Information & communication | 2018 |
| HR Nordic Mipco AS | | 2020 |
| HR Nordic Topco AS | Information & communication | 2018 |
| HR Panorama AS | Information & communication | 2023 |
| HR Rekruttering Og Vikartjenester AS | Administrative & support | 2018 |
| HR Rør AS | Construction | 2013 |
| HR Shakers AS | Professional & scientific | 2026 |
| Hr-Navigator AS | Professional & scientific | 2014 |
| Hr-Tjenester AS | Professional & scientific | 2015 |
| Hrafn Holding AS | | 2023 |
| HRB Invest AS | Real estate | 2021 |
| Hrbg AS | | 2021 |
| Hrcb AS | Hospitality | 2026 |
| Hrco AS | Hospitality | 2024 |
| HRF AS | | 2023 |
| HRF Salg AS | Wholesale & retail | 2026 |
| Hri 201 Holding AS | | 2023 |
| Hrimap AS | Information & communication | 2024 |
| Hrimnir Ramen AS | Hospitality | 2017 |
| Hring Holding AS | | 2025 |
| HRJ AS | Arts & recreation | 2013 |
| HRK Invest AS | | 2022 |
| HRM Invest AS | Professional & scientific | 2014 |
| HRM Kompetanse AS | Professional & scientific | 2018 |
| HRM Partner AS | Professional & scientific | 2014 |
| HRM Solution AS | Professional & scientific | 2005 |
| HRM Solutions AS | Professional & scientific | 2011 |
| HRN Bidco AS | | 2024 |
| HRN Holdco AS | | 2024 |
| HRN Holding AS | | 2025 |
| Hro Holding AS | | 2012 |
| Hro Invest AS | | 2024 |
| Hroli AS | Real estate | 2005 |
| HRP AS | Professional & scientific | 2005 |
| HRP Holding AS | Financial services | 2015 |
| HRP Mgmtco AS | Financial services | 2017 |
| HRP Partners AS | Professional & scientific | 2020 |