| Frøyshol Invest AS | | 2021 |
| FS Auto AS | Other services | 2017 |
| FS Autoco AS | Real estate | 2017 |
| Futsum Transport AS | Transport & logistics | 2023 |
| G O Eiendom Fersnes Og Paulsen Ans | Real estate | 2001 |
| G.O. Consulting & Investment AS | Professional & scientific | 2024 |
| Gamle Kirkevei 10 AS | Real estate | 2018 |
| Gard AS | Financial services | 2000 |
| Gard Krysset AS | Transport & logistics | 2023 |
| Gard Marine & Energy Insurance (Europe) AS | Financial services | 2014 |
| Gard Marine & Energy Limited Nuf | Financial services | 2005 |
| Gard P. & I. (Bermuda) Ltd Nuf | Financial services | 2010 |
| Garn Og Sybutikken AS | Wholesale & retail | 2017 |
| Gatelab AS | Wholesale & retail | 2013 |
| Gatesoft AS | Information & communication | 2010 |
| Gauslå Holding AS | Real estate | 2015 |
| Gautefall Invest AS | Real estate | 2020 |
| Gaveforum AS | Wholesale & retail | 1991 |
| Gavetid AS | Wholesale & retail | 2024 |
| Geir Berge AS | Wholesale & retail | 2021 |
| GFR Eiendom AS | Real estate | 2022 |
| GH Bygg Eiendom AS | Real estate | 2024 |
| GH Bygg Holding AS | Construction | 2023 |
| GH Bygg Og Stillasutleie AS | Construction | 2024 |
| Glamsland Solar AS | Energy | 2023 |
| Glinskort AS | Wholesale & retail | 2026 |
| Glitne Holding AS | Real estate | 2005 |
| GN Gastro AS | Health & social care | 2022 |
| Goboxing AS | Education | 2024 |
| Goderstad Holding AS | Administrative & support | 2020 |
| Goggsbo Eiendom AS | Real estate | 2003 |
| Goldstory AS | Wholesale & retail | 2021 |
| Good Karma Invest AS | | 2020 |
| Gorgen AS | | 2007 |
| Gossner Invest AS | | 2023 |
| Gotaas Invest AS | Construction | 2020 |
| Grand Hotel Arendal AS | Real estate | 2018 |
| Grand Hotel Arendal Drift AS | Hospitality | 2008 |
| Grandalsveien Veilag SA | Real estate | 1990 |
| Grandgården Arendal AS | Real estate | 2016 |
| Granehallen AS | Real estate | 1980 |
| Granveien 7 AS | Real estate | 2016 |
| Granvik AS | Financial services | 2017 |
| Green Norway AS | Professional & scientific | 2020 |
| Greenrecycle AS | Construction | 2026 |
| Greenways Holding AS | Wholesale & retail | 2015 |
| Grenstøl Handel AS | Real estate | 2019 |
| Grimstad Bruktbil AS | Other services | 2017 |
| Grimstad Renhold AS | Administrative & support | 2008 |
| Gromstad Auto AS | Other services | 1967 |
| Gromstad Motor Stoa AS | Wholesale & retail | 1992 |
| Grundes Byggshop AS | Wholesale & retail | 1991 |
| Grunnarbeid AS | Construction | 1988 |
| GT Autoinvest AS | Wholesale & retail | 2021 |
| Gulbrandsen Invest AS | Financial services | 2013 |
| Gulltopp AS | Wholesale & retail | 2016 |
| Gusto Nobile AS | Wholesale & retail | 2025 |
| Gårdsveien 9B AS | Real estate | 2021 |
| Gårdsveien Eiendom AS | Real estate | 1995 |
| Gørr Go Mad AS | Hospitality | 2012 |
| H. Hill Holding AS | Real estate | 2006 |
| H.A Autoparts AS | Wholesale & retail | 2018 |
| Haarfagre Boutique & Hairdresser AS | Other services | 2015 |
| Hag Offshore Nuf | Mining & quarrying | 2018 |
| Hairline AS | Other services | 2024 |
| Halland Technologies AS | Information & communication | 2022 |
| Hammer Arendal AS | Real estate | 2003 |
| Hannys AS | Construction | 2021 |
| Hans Thornes Vei 76 AS | Real estate | 2019 |
| Hansnes Invest AS | Professional & scientific | 2005 |
| Happy Gecko Krøgenes AS | Hospitality | 2024 |
| Happy Time Arendal Da | Hospitality | 2007 |
| Happy Time Pizza Og Kebab AS | Hospitality | 2023 |
| Haralds AS | Hospitality | 2025 |
| Harebakken Fysioterapi AS | Health & social care | 2026 |
| Harebakken Gull Og Ur AS | Wholesale & retail | 2008 |
| Harmoni Helse AS | Real estate | 2025 |
| Harmony AS | Wholesale & retail | 2021 |
| Hartvig Olsen Eiendom AS | Real estate | 1972 |
| Haslemo Eiendom AS | Real estate | 1995 |
| Haslemo Fysio AS | Health & social care | 2020 |
| Haslund Holding AS | | 2026 |
| Haste Eiendom AS | Real estate | 2006 |
| Haster AS | Information & communication | 2026 |
| Hauene Invest AS | | 2025 |
| Haugli Gruppen AS | | 2025 |
| Havblik Almenlegesenter Da | Health & social care | 1995 |
| Havnebussen AS | Transport & logistics | 2017 |
| Havnegaten 5 AS | Real estate | 2024 |
| Havnegården AS | Real estate | 2008 |
| Havnegården Eiendom AS | Real estate | 2015 |
| Havstad Dyreklinikk AS | Professional & scientific | 2010 |
| Havstad Elektro AS | Construction | 2013 |
| Hazel and Hazel AS | Wholesale & retail | 2025 |
| HBB Montasje AS | Administrative & support | 2025 |
| Health by Nature AS | Manufacturing | 1996 |
| Health by Nature Eiendom AS | Real estate | 2002 |
| Heen Eiendom AS | Real estate | 1985 |
| Heggland Bygg AS | Construction | 2012 |
| Heggland Eiendom Og Utleie AS | Construction | 2011 |