| H Mohamed Invest Nuf | Transport & logistics | 2023 |
| H Myklebust AS | Professional & scientific | 1970 |
| H Nicolaisen AS | | 2021 |
| H O Bolig Og Næringsbygg AS | Real estate | 1991 |
| H Og S AS | Wholesale & retail | 2025 |
| H Oustad AS | Arts & recreation | 1999 |
| H P W Holding AS | Financial services | 2005 |
| H Prosjekt AS | Real estate | 2022 |
| H Sundsli AS | Professional & scientific | 2019 |
| H Sønstebø AS | Real estate | 1983 |
| H Transport AS | Transport & logistics | 2017 |
| H Ødegaard & Co AS | Wholesale & retail | 1982 |
| H&C Anlagenmontagen GmbH | Construction | 2026 |
| H&F Partners AS | Professional & scientific | 2019 |
| H&H Invest AS | Other services | 2005 |
| H&H Kapital AS | Real estate | 2008 |
| H&I Kjøkken Og Elektro AS | Wholesale & retail | 2022 |
| H&J Helsetjenester AS | Health & social care | 2025 |
| H&J Holding AS | Health & social care | 2024 |
| H&L Consulting AS | Professional & scientific | 2023 |
| H&L Eiendom AS | Real estate | 2023 |
| H&M Giachino | Professional & scientific | 1987 |
| H&M Verden AS | Wholesale & retail | 2024 |
| H&R Capital AS | | 2019 |
| H&R Invest AS | Real estate | 2009 |
| H+M Steel AS | Information & communication | 2002 |
| H-2 Danmark AS | Financial services | 2005 |
| H-2 Eiendom AS | Real estate | 2007 |
| H-2 Eiendom Hylle 3 AS | Real estate | 2020 |
| H-2 Handel Holding AS | Real estate | 2018 |
| H-2 Hotell Kristiansund AS | Real estate | 2006 |
| H-2 Nord Eiendom AS | Real estate | 2006 |
| H-2 Utleie Bergen AS | Real estate | 2014 |
| H-Elvenes Invest AS | | 2025 |
| H-I Elektro AS | Construction | 1996 |
| H-I Invest AS | Construction | 2005 |
| H-R Invest AS | Information & communication | 2017 |
| H-Veien Bygg AS | Construction | 2018 |
| H. Butlers Nordiske Bartenderskole Ltd Nuf | Education | 2005 |
| H. Bøckmann Holding AS | | 2021 |
| H. Consult and Invest AS | Mining & quarrying | 2014 |
| H. Habberstad Holding AS | | 2023 |
| H. Holst-Berg II AS | | 2025 |
| H. Jordal Holding AS | | 2024 |
| H. M. Dobloug Holding AS | Health & social care | 2017 |
| H. Maråk Holding AS | | 2023 |
| H. Nygaard AS | | 2025 |
| H. S. Nielsen Eiendom AS | Construction | 2006 |
| H.-P. Murstad For Men A/S | Wholesale & retail | 1988 |
| H.E Bortheim Holding AS | | 2024 |
| H.E. Pennypacker AS | | 2015 |
| H.G. Johnsen Holding AS | | 2021 |
| H.H.Holding AS | | 2021 |
| H.Henriksen Bidco AS | | 2025 |
| H.I.G. Petro AS | Real estate | 2017 |
| H.I.G. Petro II AS | Real estate | 2017 |
| H.J.Hammer AS | Education | 2019 |
| H.J.S. Larsen Invest AS | Real estate | 2005 |
| H.M. Telle AS | Real estate | 2015 |
| H.Narvestad Holding AS | | 2026 |
| H.P. Finne AS | Professional & scientific | 2004 |
| H.P. Invest AS | | 2026 |
| H.R Kapital AS | | 2024 |
| H.R.Holth Invest AS | Professional & scientific | 2023 |
| H.R.Malerservice AS | Construction | 2019 |
| H.Rædergård Holding AS | | 2024 |
| H.Sohrabi Holding AS | Health & social care | 2020 |
| H.St Holding AS | | 2020 |
| H1 Capital AS | Financial services | 2018 |
| H10 Holding AS | Manufacturing | 2020 |
| H10 Productions AS | Arts & recreation | 2021 |
| H100 Norway AS | Information & communication | 2025 |
| H11 Holding AS | | 2023 |
| H2 Capital AS | | 2024 |
| H2 Consulting AS | Information & communication | 2025 |
| H2 Holdings AS | | 2024 |
| H2 Miljø AS | Construction | 2022 |
| H2 Produksjoner AS | Information & communication | 2025 |
| H24LIFE Limited | | 2022 |
| H2INK AS | Professional & scientific | 1987 |
| H2MILJØ Holding AS | | 2025 |
| H2N Holdings AS | | 2026 |
| H2O Eiendom AS | Real estate | 2019 |
| H2O Holding AS | | 2023 |
| H2O Rørservice AS | Construction | 2026 |
| H2W Studio AS | Professional & scientific | 2012 |
| H2X Utleie AS | Administrative & support | 2024 |
| H3 Gruppen AS | Arts & recreation | 2014 |
| H32 Utvikling AS | Real estate | 2022 |
| H3DESIGN AS | Professional & scientific | 2020 |
| H46 Utvikling AS | | 2020 |
| H5 Norge AS | Information & communication | 2015 |
| H76 Eiendom AS | Real estate | 2017 |
| H7GT2 AS | Real estate | 2017 |
| H9 Offentlig Eiendom AS | Real estate | 2020 |
| Ha Bygg AS | Construction | 2017 |
| Ha Connected AS | Information & communication | 2026 |
| Ha Det På Badet Nett & Prosjekt AS | Professional & scientific | 2022 |
| Ha Frisinger Invest AS | | 2026 |
| Ha Konsult AS | Real estate | 2020 |