| H.F Mechanic & Trading AS | Arts & recreation | 2018 |
| Haaco AS | Real estate | 1966 |
| Haakon Laastad Invest AS | | 2024 |
| Haakon Nordvik Holding AS | Real estate | 2024 |
| Haaland Helse AS | Health & social care | 2023 |
| Haaland Jensen Import Ans | Wholesale & retail | 2002 |
| Haavaasen Eiendom AS | Real estate | 2022 |
| Haavik Eiendom AS | Real estate | 2024 |
| Haca Med AS | Health & social care | 2024 |
| Haga Holding AS | Real estate | 2005 |
| Hagland Bulk II AS | Transport & logistics | 1994 |
| Hagland Bulk II KS | Transport & logistics | 1994 |
| Hagland Bulk Shipping AS | Transport & logistics | 1990 |
| Hagland Bulk Transport AS | Transport & logistics | 1997 |
| Hagland Bulk Transport KS | Transport & logistics | 2005 |
| Hagland Eiendom AS | Real estate | 1984 |
| Hagland Eiendomsutvikling AS | Real estate | 2005 |
| Hagland Finans AS | Professional & scientific | 1985 |
| Hagland Gård AS | Hospitality | 1995 |
| Hagland Holding AS | Professional & scientific | 2018 |
| Hagland Invest AS | Administrative & support | 2003 |
| Hagland Rederi AS | Transport & logistics | 1997 |
| Hagland Shipping AS | Transport & logistics | 1983 |
| Hagland Tomteselskap AS | Real estate | 2016 |
| Hagri Eiendom AS | Real estate | 2025 |
| Hagri Invest AS | | 2021 |
| Hallbjørn AS | Real estate | 2020 |
| Hallens Kiosk Og Grill Ans | Wholesale & retail | 1998 |
| Halleraker Holding AS | Arts & recreation | 2020 |
| Hallink AS | Health & social care | 2022 |
| Hallquist Eiendom AS | Real estate | 2006 |
| Halseid Kultur AS | Arts & recreation | 2021 |
| Halvveis Holding AS | | 2023 |
| Hammer Kapital AS | | 2026 |
| Hamningberg Holding AS | Real estate | 2005 |
| Hamrane Eiendom AS | Real estate | 2011 |
| Hamre Dagligvare AS | Wholesale & retail | 2012 |
| Handbak Holding AS | Professional & scientific | 2024 |
| Handyman Nielsen Da | Construction | 2007 |
| Hangrymind AS | | 2025 |
| Hans a. Tøgersen AS | Wholesale & retail | 2005 |
| Hans Haugesgt 38 AS | Real estate | 1997 |
| Hansavågen Eiendom AS | Real estate | 2017 |
| Hanskemagasinet Haugesund AS | Wholesale & retail | 1926 |
| Hanto Eiendom AS | Other services | 2012 |
| Happy Nutrition AS | Wholesale & retail | 2025 |
| Har Moni AS | | 2026 |
| Harald 205 AS | Real estate | 2025 |
| Harald Halvorsen AS | Transport & logistics | 2006 |
| Harald Hårfagre AS | Energy | 2021 |
| Harald Miljeteig Utvikling AS | Real estate | 2005 |
| Haraldsgata 136 AS | Wholesale & retail | 2013 |
| Haraldsgata 143 AS | Real estate | 2017 |
| Haraldsgata 159 AS | Real estate | 2019 |
| Haraldsgata 74 AS | Real estate | 2025 |
| Haraldsgata 76 AS | Real estate | 2025 |
| Haraldsgata Eiendom AS | Real estate | 2025 |
| Haraldsgata Legekontor AS | Wholesale & retail | 2016 |
| Haraldsgaten 100 AS | Real estate | 2003 |
| Haraldsgaten 109 AS | Wholesale & retail | 1987 |
| Haraldsgaten 118 AS | Real estate | 2006 |
| Haraldsgaten 121 AS | Real estate | 2003 |
| Haraldsgaten 140 AS | Real estate | 1972 |
| Haraldsgaten 168 AS | Real estate | 1983 |
| Haraldsgaten 170 Ans | Real estate | 1996 |
| Haraldsgaten 53 AS | Real estate | 2013 |
| Haraldsgaten Eiendom AS | Real estate | 2007 |
| Haraldsgaten Forretningsbygg AS | Real estate | 2001 |
| Haraldsgt 95 AS | Real estate | 2004 |
| Haraldshaugen Camping AS | Hospitality | 2010 |
| Haraldsvangen AS | Wholesale & retail | 2017 |
| Hardanger Eiendomsselskap AS | Real estate | 1996 |
| Haro Investering AS | | 2014 |
| Harpix AS | Health & social care | 2014 |
| HARSØR200 AS | Real estate | 2012 |
| Hasseløy Boligbyggelag AS | Households | 1951 |
| Hasseløy Bygg & Rigg AS | Manufacturing | 2025 |
| Hasseløy Eiendom AS | Real estate | 2013 |
| Hasseløy Nord Felt a AS | Real estate | 2022 |
| Hasseløy Nord Felt H AS | Real estate | 2022 |
| Hasseløy Utvikling AS | Real estate | 2002 |
| Haug Byggteknikk AS | Construction | 2017 |
| Haugaland Atlantis Games | Wholesale & retail | 2009 |
| Haugaland Bilberging AS | Transport & logistics | 2016 |
| Haugaland Bilvask AS | Other services | 2018 |
| Haugaland Buss AS | Transport & logistics | 1999 |
| Haugaland Bygg & Malerservice AS | Construction | 2024 |
| Haugaland Båtkompetanse AS | Education | 2022 |
| Haugaland Båtsenter AS | Wholesale & retail | 2015 |
| Haugaland Eiendomsselskap AS | Real estate | 2022 |
| Haugaland Elektroservice Da | Other services | 2000 |
| Haugaland Fjord & Fritid AS | Wholesale & retail | 2014 |
| Haugaland Flyttehjelp AS | Transport & logistics | 2020 |
| Haugaland Handelspark AS | Real estate | 2006 |
| Haugaland Hundeskole Ans | Agriculture & fishing | 1996 |
| Haugaland Idrettsbarnehage AS | Education | 2021 |
| Haugaland Klatring Og Turn AS | Arts & recreation | 2023 |
| Haugaland Klimateknikk AS | Construction | 2026 |
| Haugaland Kraft AS | Energy | 2015 |
| Haugaland Kraft Energi AS | Energy | 2015 |