| Hamreheia 36 AS | Real estate | 2015 |
| Hamresanden Utvikling AS | Professional & scientific | 2013 |
| Hanan Frisør AS | Other services | 2023 |
| Handelens Hus AS | Real estate | 1965 |
| Handelsco AS | Wholesale & retail | 2013 |
| Handi AS | Wholesale & retail | 2015 |
| Handicus AS | Administrative & support | 2012 |
| Handlingskraft AS | Arts & recreation | 2017 |
| Hanna AS | | 2023 |
| Hannah's AS | Other services | 2024 |
| Hanne Holvik AS | Professional & scientific | 2015 |
| Hannevika Invest AS | Arts & recreation | 2022 |
| Hanol AS | Wholesale & retail | 2003 |
| Hanol Krossen AS | Wholesale & retail | 2008 |
| Hans Frivold Eiendom AS | Financial services | 2012 |
| Hans Haugen Holding AS | | 2025 |
| Hans Hermansen Ans | Transport & logistics | 2002 |
| Hans Johnsen Ans | Wholesale & retail | 1825 |
| Hans Johnsen Rådgivning AS | Professional & scientific | 1997 |
| Hans Jørgen Fiskaadal AS | Health & social care | 2003 |
| Hansen & Co. AS | Wholesale & retail | 2009 |
| Hansen & Justnæs AS | Manufacturing | 1985 |
| Hansen Consult AS | Professional & scientific | 1987 |
| Hanzo Holding AS | | 2020 |
| Hapa Norge AS | | 2021 |
| Happy Time Kvadraturen AS | Hospitality | 2015 |
| Happy Time Møvig AS | Hospitality | 2016 |
| Happy Time Søm AS | Hospitality | 2021 |
| Harald Eiendom AS | Real estate | 2024 |
| Harald Frigstad AS | Real estate | 1981 |
| Harald Knutsen AS | Real estate | 1967 |
| Harald Skeie Holding AS | Wholesale & retail | 2005 |
| Harambee Consulting AS | Professional & scientific | 2015 |
| Hard Dimension AS | Arts & recreation | 2025 |
| Hardcore Dealer Kristiansand AS | Wholesale & retail | 2016 |
| Hardcore Dealer Sørlandssenteret AS | Wholesale & retail | 2013 |
| Harring Drift AS | Other services | 2024 |
| Hartmanns Brygge Holding AS | Real estate | 2023 |
| Hartmanns Marina AS | Arts & recreation | 2002 |
| Hartvig-Nygård AS | | 2010 |
| Harv Invest AS | Professional & scientific | 2015 |
| Hasseleid Invest AS | | 2024 |
| Hats Invest AS | | 2022 |
| Haubiz Utleie AS | Administrative & support | 2024 |
| Haugaard Group AS | Professional & scientific | 2024 |
| Haugedal Invest AS | Real estate | 2024 |
| Haugesgate 27 AS | Real estate | 2019 |
| Haugevikkilen Eiendom AS | Real estate | 2021 |
| Haugland Interiør AS | Manufacturing | 2014 |
| Haugå AS | Real estate | 2024 |
| Haukom Eiendom AS | Real estate | 2022 |
| Haukvik Finans AS | Other services | 2024 |
| Haus & Co Holding AS | | 2026 |
| Haus Holding AS | | 2026 |
| Havet Eiendom Sør AS | Real estate | 2022 |
| Havet Holding AS | Hospitality | 2012 |
| Havfruen Drift AS | Education | 2023 |
| Havfruen Eiendom AS | Real estate | 2023 |
| Havfruen Holding AS | Real estate | 2023 |
| Havkanten Legesenter AS | Health & social care | 2025 |
| Havnebyen AS | | 2017 |
| Havnerøy Holding AS | Real estate | 2009 |
| Havrafting Sør AS | Transport & logistics | 2015 |
| Havrand Enterprise AS | Arts & recreation | 2024 |
| Havre Invest AS | Real estate | 2023 |
| Hayat Ans | Information & communication | 2021 |
| HB Anläggning AB Nuf | Construction | 2024 |
| HBB Bergen AS | Hospitality | 2012 |
| HBB Kristiansand AS | Hospitality | 2018 |
| HBB Stavanger AS | Hospitality | 2002 |
| HBB Trondheim AS | Hospitality | 2016 |
| HBB Tønsberg AS | Hospitality | 2018 |
| HBG AS | Real estate | 2020 |
| HBJ Drift AS | Real estate | 2021 |
| HC Trading Ans | Wholesale & retail | 2008 |
| HC Trading AS | Wholesale & retail | 2024 |
| HC Trading Holding AS | | 2024 |
| Hccch AS | | 2020 |
| HDC Marked AS | Wholesale & retail | 2020 |
| He Ventures AS | | 2025 |
| Headliner AS | Administrative & support | 2018 |
| Headlink AS | Information & communication | 2021 |
| Heag AS | Professional & scientific | 2009 |
| Healthlife Norge AS | Wholesale & retail | 2016 |
| Heaten AS | Information & communication | 2020 |
| Heatwave AS | Information & communication | 2017 |
| Heca Invest AS | Real estate | 2005 |
| Heco Ans | Wholesale & retail | 1996 |
| Heddval Invest AS | | 2026 |
| Hedengran Eiendom AS | Real estate | 2020 |
| Hedrik AS | Real estate | 2025 |
| Hee AS | | 2005 |
| Heenvest AS | | 2021 |
| Heggun Invest AS | Real estate | 2013 |
| Heidi's Bier Bar Drammen AS | Hospitality | 2015 |
| Heidi's Bier Bar Oslo AS | Hospitality | 2015 |
| Heilt Sjef AS | Real estate | 2007 |
| Heimar Invest AS | Real estate | 1996 |
| Heimgard Foods AS | Professional & scientific | 2025 |
| Heindl Heinrich | Manufacturing | 2001 |