| Happis AS | Hospitality | 2022 |
| Happy & Bored AS | | 2021 |
| Happy 2 AS | Professional & scientific | 2005 |
| Happy AS | Professional & scientific | 2012 |
| Happy Camper AS | | 2021 |
| Happy Campers AS | Professional & scientific | 2010 |
| Happy Care AS | Health & social care | 2013 |
| Happy Chair AS | Professional & scientific | 2009 |
| Happy Day in the House AS | Wholesale & retail | 2015 |
| Happy Endings AS | Manufacturing | 2011 |
| Happy Food and Frukt AS | Wholesale & retail | 2021 |
| Happy Foods AS | Hospitality | 2014 |
| Happy Helpers AS | Administrative & support | 2018 |
| Happy Holding AS | Arts & recreation | 2024 |
| Happy Homes AS | Real estate | 2008 |
| Happy Indian Tree AS | Hospitality | 2010 |
| Happy Invest AS | Real estate | 2020 |
| Happy Life AS | Professional & scientific | 2026 |
| Happy Life Invest AS | | 2023 |
| Happy Meal AS | Hospitality | 2024 |
| Happy Media AS | Professional & scientific | 2020 |
| Happy Mouth AS | Information & communication | 2020 |
| Happy N AS | Administrative & support | 2018 |
| Happy Nails AS | Other services | 2019 |
| Happy Place AS | | 2023 |
| Happy Price Oslo AS | Wholesale & retail | 2021 |
| Happy Rebels AS | Wholesale & retail | 2014 |
| Happy Sushi AS | Hospitality | 2023 |
| Happy Time Oslo AS | Hospitality | 2013 |
| Happy Wife Holding AS | Professional & scientific | 2023 |
| Happybytes AS | Information & communication | 2017 |
| Happyfish AS | Financial services | 2013 |
| Happymom AS | Arts & recreation | 2013 |
| Happynext AS | Administrative & support | 2020 |
| Happynorwegian AS | Wholesale & retail | 2016 |
| Happypaddle AS | Administrative & support | 2026 |
| Happypath AS | Information & communication | 2025 |
| Happyvans AS | Administrative & support | 2018 |
| Happyvibes Norge AS | Wholesale & retail | 2024 |
| Hapt AS | Arts & recreation | 2025 |
| Haptic Architects AS | Professional & scientific | 2010 |
| Haraba Holding AS | | 2015 |
| Harahorn Eiendom AS | Real estate | 2010 |
| Harald a Jakhelln AS | | 1974 |
| Harald AS | Financial services | 2005 |
| Harald Beharie AS | Arts & recreation | 2025 |
| Harald Claes Garasjer AS | Real estate | 2025 |
| Harald Flaen AS | Real estate | 2007 |
| Harald Hardrådesgate 23-25 AS | Real estate | 2022 |
| Harald Hjelle Arkitekter AS | Professional & scientific | 2004 |
| Harald Hovland AS | Professional & scientific | 2003 |
| Harald Investco AS | Financial services | 2025 |
| Harald Karsten AS | Professional & scientific | 2022 |
| Harald Krosby AS | Professional & scientific | 2013 |
| Harald L Schage AS | Wholesale & retail | 1967 |
| Harald Lønsethagen Holding AS | | 2020 |
| Harald Mathisen Holding AS | Real estate | 2005 |
| Harald Mowinckel AS Ltd | Wholesale & retail | 1926 |
| Harald Norway Bidco AS | Professional & scientific | 2022 |
| Harald Rautenberg | Wholesale & retail | 2012 |
| Harald Solberg | Wholesale & retail | 1934 |
| Harald Stange & Co AS | Real estate | 1922 |
| Harald Voigt AS | Financial services | 1994 |
| Haralden Holding AS | Real estate | 2016 |
| Haraldini AS | Health & social care | 2023 |
| Haraldini Eiendom AS | Real estate | 2024 |
| Haralditt AS | Professional & scientific | 2019 |
| Haraldrud Eiendomselskap AS | Real estate | 2007 |
| Haraldrud Utvikling AS | Real estate | 2001 |
| Haraldrudveien 11 AS | Real estate | 2004 |
| Haraldrudveien 18 AS | Real estate | 2013 |
| Haraldrudveien 18 Holding AS | Real estate | 2018 |
| Haraldrudveien 22 AS | Real estate | 2020 |
| Haraldrudveien 31 AS | Real estate | 2011 |
| Haraldrudveien 31 Eiendom AS | Real estate | 2023 |
| Haraldrudveien 35 AS | Real estate | 2016 |
| Haraldrudveien 35 Eiendom AS | Real estate | 2023 |
| Haraldrudveien 40 AS | Real estate | 1971 |
| Haralds Vei 9 AS | Real estate | 2008 |
| Haraldsen Invest AS | | 2005 |
| Haraldsen Taksering AS | Real estate | 2021 |
| Haraldson Holding AS | | 2020 |
| Haraldstad Invest AS | Financial services | 2018 |
| Haraldsvei 12 AS | Real estate | 2004 |
| Haraldsø Holding AS | | 2025 |
| Haraldvangen AS | Hospitality | 2007 |
| Haram Eiendom AS | Real estate | 2017 |
| Haram Møbelsnekkeri AS | Manufacturing | 2025 |
| Haranca AS | | 2013 |
| Harar Holding AS | | 2026 |
| Harbak Mat AS | Wholesale & retail | 2026 |
| Harbarn AS | Real estate | 2010 |
| Harberg Invest AS | | 2023 |
| Harbil AS | | 2011 |
| Harbitz Blomster AS | Wholesale & retail | 2020 |
| Harbitz Cowork AS | Real estate | 2019 |
| Harbitz Eiendom AS | Real estate | 2017 |
| Harbitz Eiendom II AS | Real estate | 2019 |
| Harbitz Industries AS | Professional & scientific | 2011 |
| Harbitz Invest AS | Professional & scientific | 1992 |