| Go Mandal Trafikkskole AS | Education | 2012 |
| Go Utleie Da | Administrative & support | 2025 |
| God På Bunn AS | Water & waste | 2025 |
| Godly Gains AS | Wholesale & retail | 2023 |
| Golf Consult AS | Professional & scientific | 2019 |
| Goska Holding AS | Real estate | 2017 |
| Got Holding AS | Manufacturing | 2017 |
| Got Marine AS | Manufacturing | 2005 |
| Got Products AS | Construction | 2019 |
| Gran Design Og Innredning AS | Manufacturing | 2007 |
| Green Sealice Solutions AS | Agriculture & fishing | 2018 |
| Greenmoods AS | Wholesale & retail | 2023 |
| Greibesland Holding AS | Real estate | 2018 |
| Grenland Bedriftskunnskap AS | Professional & scientific | 2002 |
| Grss Invest AS | Real estate | 2020 |
| Grunnboring Sør AS | Professional & scientific | 2021 |
| Grønn Verden AS | Agriculture & fishing | 2020 |
| Gullsmed Danielsens Eftf AS | Wholesale & retail | 2016 |
| Gunnar Jakobsen AS | Construction | 2012 |
| Gustav Olsen Entreprenørforretning AS | Construction | 2021 |
| Gåseland AS | Administrative & support | 2018 |
| Gåseland Bygg Og Anlegg AS | Construction | 2023 |
| Gåseland Entreprenør AS | Construction | 2026 |
| H F Automater AS | Wholesale & retail | 1986 |
| H.B Holding AS | Real estate | 2012 |
| Haabe Invest AS | Transport & logistics | 2026 |
| Haag Invest AS | | 2026 |
| Haaland Samdrift Da | Agriculture & fishing | 2021 |
| Haaland Services AS | Administrative & support | 2016 |
| Haddeland Service AS | Other services | 2013 |
| Haddeland Skogsveisamvirke SA | Real estate | 2009 |
| Hag AS | Real estate | 2024 |
| Hagehei Advokatfirma AS | Professional & scientific | 2019 |
| Hageland Energi & Konstruksjon AS | | 2025 |
| Hagen Fysikalske AS | Health & social care | 2018 |
| Hagla Holding AS | Real estate | 2012 |
| Hald Internasjonale Skole AS | Education | 2004 |
| Halse Eiendom 2 AS | Real estate | 2025 |
| Halse Eiendom AS | Real estate | 2004 |
| Halv Tank AS | Professional & scientific | 2009 |
| Hammer Og Rødland AS | Construction | 2008 |
| Hansen & Støle Bygg AS | Real estate | 1999 |
| Hansen Trefelling AS | Agriculture & fishing | 2019 |
| Hansens Handel AS | Wholesale & retail | 2017 |
| Harkmarkfjorden Båthuslag SA | Real estate | 2015 |
| Harmoni Hudpleie AS | Other services | 2020 |
| Harnex AS | Administrative & support | 2017 |
| Haske AS | Real estate | 2005 |
| Hausvikstranda AS | Real estate | 2022 |
| Havmentis AS | Information & communication | 2026 |
| Havutsikt AS | Real estate | 2006 |
| HBC AS | Manufacturing | 1998 |
| Hca AS | Wholesale & retail | 2005 |
| HCG Invest AS | Real estate | 2005 |
| He Invest AS | | 2017 |
| Hebjar Holding AS | Agriculture & fishing | 2022 |
| Hedon AS | Professional & scientific | 2006 |
| Hee Konsult AS | Professional & scientific | 2021 |
| Heim - Interiør AS | Professional & scientific | 2023 |
| Helmax AS | Real estate | 2005 |
| Helse & Co AS | Health & social care | 2026 |
| Helsoteket AS | Wholesale & retail | 1994 |
| Herrlee AS | | 2024 |
| Hertha AS | Real estate | 2005 |
| Hestetroa Holding AS | Hospitality | 2010 |
| Hestås AS | Real estate | 2005 |
| Higi AS | Professional & scientific | 1995 |
| Himasi AS | | 2012 |
| Hiphop AS | | 2019 |
| Hjorteland Eiendom AS | Real estate | 2004 |
| Hkjellby AS | Professional & scientific | 2018 |
| HM Group AS | Construction | 2010 |
| HN Consult Agder AS | Professional & scientific | 2019 |
| Holand Og Haven AS | Health & social care | 2013 |
| Holding BM AS | Hospitality | 2012 |
| Hollendergata 3 AS | Real estate | 2007 |
| Holmegård Eiendom AS | Real estate | 1998 |
| Holte Haugland Bygg Og Eiendom AS | Administrative & support | 2024 |
| Holtetoppen AS | Real estate | 2006 |
| Holteøy AS | Professional & scientific | 2005 |
| Home Furniture AS | Wholesale & retail | 2024 |
| Homme Vannverk SA | Water & waste | 2023 |
| Homvollen Holding AS | Professional & scientific | 2006 |
| Horga AS | Wholesale & retail | 2022 |
| Hotelinvest AS | Real estate | 1997 |
| HS Industri & Service AS | Manufacturing | 2020 |
| HSH Prosjekt Da | Real estate | 2010 |
| HT Mandal AS | | 2020 |
| Hundeskolen Syd Da | Other services | 2017 |
| Hurlumhei Barnehage SA | Education | 1990 |
| Husfliden Eiendom AS | Real estate | 1989 |
| Hydramar AS | Professional & scientific | 1982 |
| Hygge AS | Professional & scientific | 2025 |
| Hylleodd 1 AS | | 2025 |
| Hylleodd 10 AS | | 2026 |
| Hylleodd 12 AS | | 2026 |
| Hylleodd 13 AS | | 2026 |
| Hylleodd 14 AS | | 2026 |
| Hylleodd 15 AS | | 2026 |
| Hylleodd 16 AS | | 2026 |