| Hiram Invest AS | | 2023 |
| Hird AS | Information & communication | 2024 |
| Hire Holding AS | Construction | 2017 |
| Hire Norway AS | Administrative & support | 2007 |
| Hireforce Invest AS | | 2024 |
| Hiro AS | Information & communication | 2018 |
| Hiro Eiendom AS | Real estate | 2021 |
| Hiro Holding AS | Real estate | 2021 |
| Hiro Invest AS | | 2020 |
| Hirondelle AS | Hospitality | 2021 |
| Hirrow AS | Wholesale & retail | 2023 |
| Hirsch Holding AS | | 2021 |
| His 2015 AS | Real estate | 2015 |
| His Capital AS | Financial services | 2022 |
| His Holding AS | | 2022 |
| Hish Holding AS | Professional & scientific | 2025 |
| Hisno Invest AS | Real estate | 2013 |
| Hispatrans Limited | Transport & logistics | 2022 |
| Hissig AS | Other services | 2026 |
| Hist Holding AS | Financial services | 2014 |
| Historiehuset Holding AS | Education | 2014 |
| Historiske Mestre AS | Construction | 2015 |
| Historiske Reiser Da | Administrative & support | 2000 |
| Histra Consulting AS | Professional & scientific | 2022 |
| Hisøy Miljø AS | Professional & scientific | 2024 |
| Hit Kompetanse AS | Information & communication | 2000 |
| Hitachi Energy Norway AS | Construction | 2018 |
| Hitachi Rail Norway AS | Information & communication | 2018 |
| Hitchhiker AS | Hospitality | 2012 |
| Hite AS | Professional & scientific | 2021 |
| Hitio International AS | Administrative & support | 2017 |
| Hitnsa AS | Information & communication | 2026 |
| Hitra Vind AS | Energy | 2002 |
| Hittersjoen Holding AS | | 2022 |
| Hive AS | Professional & scientific | 2023 |
| Hive Consulting AS | Professional & scientific | 2018 |
| Hive Holdings AS | | 2019 |
| Hive HR AS | Professional & scientific | 2024 |
| Hive Initiative AS | Professional & scientific | 2023 |
| Hiven AS | Information & communication | 2023 |
| Hiwi AS | Financial services | 2003 |
| Hiwi Design AS | Professional & scientific | 2012 |
| HJ Elektro AS | Construction | 2020 |
| HJ Invest AS | | 2019 |
| HJ Matglede AS | Wholesale & retail | 2025 |
| HJ Nyberg AS | Real estate | 2014 |
| HJ Teknikk AS | Professional & scientific | 2016 |
| HJ Transport AS | Transport & logistics | 2026 |
| HJ Øyelege AS | Health & social care | 2024 |
| Hj&Hj AS | | 2022 |
| HJ2 Holding AS | Real estate | 2022 |
| HJ7 Holding AS | Manufacturing | 2020 |
| Hja AS | | 2024 |
| Hjalmar Bjørge AS | Transport & logistics | 1994 |
| Hjalmar Brantings Vei 2 Eiendom AS | Real estate | 2017 |
| Hjalmar Johansens Gate 12 AS | Real estate | 1987 |
| Hjalmar Wessels Vei 6 AS | Real estate | 2015 |
| Hjalmar Wilhelmsen AS | Wholesale & retail | 1999 |
| Hjamho AS | Financial services | 2014 |
| Hjarl AS | Information & communication | 2020 |
| Hjarnaa Holding AS | | 2026 |
| Hjasto AS | | 2024 |
| Hje Invest AS | Financial services | 2005 |
| Hjelde Capital AS | | 2022 |
| Hjelde Invest AS | Financial services | 2005 |
| Hjelle Investering AS | | 2015 |
| Hjelle Konsulenttjenester AS | Information & communication | 2026 |
| Hjellegjerde Bolig AS | Real estate | 1998 |
| Hjellegjerde Eiendom AS | Real estate | 2004 |
| Hjellegjerde Equity AS | | 2024 |
| Hjelmaas AS | Professional & scientific | 2014 |
| Hjelme AS | Professional & scientific | 2021 |
| Hjelms Lab AS | | 2025 |
| Hjelmstad Invest AS | Real estate | 2006 |
| Hjelp I Norge AS | Education | 2018 |
| Hjelp Regnskap AS | Professional & scientific | 2017 |
| Hjelpemiddelspesialisten AS | Wholesale & retail | 1997 |
| Hjelper Hjerne AS | Health & social care | 2023 |
| Hjelpi AS | Financial services | 2011 |
| Hjelpp AS | Construction | 2016 |
| Hjelseth Advokatfirma AS | Professional & scientific | 2017 |
| Hjem Entreprenør AS | Construction | 2026 |
| Hjem Holding AS | | 2022 |
| Hjem Til Deg AS | Administrative & support | 1997 |
| Hjem.No Invest Holding AS | Financial services | 2024 |
| Hjemgård Kommunikasjon AS | Education | 2012 |
| Hjemkjørte Møbler AS | Wholesale & retail | 2019 |
| Hjemla AS | Information & communication | 2025 |
| Hjemlaadvokatene.No AS | Professional & scientific | 2026 |
| Hjemlengsel AS | Professional & scientific | 1993 |
| Hjemme - Massasje AS | Other services | 2014 |
| Hjemme Hos Samvirke SA | Health & social care | 2019 |
| Hjemmeavliving AS | Professional & scientific | 2021 |
| Hjemmeavlivning AS | Professional & scientific | 2021 |
| Hjemmedekor AS | Wholesale & retail | 2022 |
| Hjemmefest AS | Administrative & support | 2024 |
| Hjemmel Lysaker Torg 45 Bygg E Ans | Real estate | 1995 |
| Hjemmel Lysaker Torg 45 Bygg F Ans | Real estate | 1995 |
| Hjemmel Stavanger Airport Hotel AS | Real estate | 1990 |
| Hjemmelegene AS | Health & social care | 2017 |