| Global Green Energy Flux AS | Information & communication | 2026 |
| Global Green Intelligent Energy AS | Professional & scientific | 2025 |
| Globalconnect AS | Information & communication | 2006 |
| Globalconnect Topholding AS | Information & communication | 2016 |
| Godske Norge AS | Wholesale & retail | 1995 |
| Golf Heab AS | Wholesale & retail | 1997 |
| Gosachsen Invest AS | | 2016 |
| GP Bygg Invest AS | Construction | 2022 |
| Gran Seil AS | Manufacturing | 2003 |
| Grappa Group AS | Wholesale & retail | 2003 |
| Greb Invest AS | | 2022 |
| Green Comfort AS | Wholesale & retail | 2011 |
| Greenpowerhub AS | Information & communication | 2019 |
| Grenke Bank AG Branch Norway Nuf | Financial services | 2015 |
| Grinde Capital AS | | 2025 |
| Grinnared Invest AS | Real estate | 2000 |
| Growthworks AS | | 2019 |
| Grønvollkvartalet AS | Real estate | 2017 |
| Grüner House AS | Information & communication | 2026 |
| Guli Vault AS | Real estate | 2014 |
| GVK Næring 1 AS | Real estate | 2020 |
| GVK Næring 3 AS | Real estate | 2020 |
| H&B Holding AS | Wholesale & retail | 2014 |
| H2CARRIER AS | Energy | 2020 |
| Haga Ventures AS | Professional & scientific | 2021 |
| Hagebyen A4 AS | Real estate | 2014 |
| Haldenveien 8 AS | Real estate | 2015 |
| Haleon Norway AS | Wholesale & retail | 2014 |
| Hamo Invest AS | Real estate | 2008 |
| Han Invest AS | Information & communication | 2018 |
| Harald Anderssen Invest AS | Financial services | 2005 |
| Harald Enerud Kunstformidling AS | Wholesale & retail | 2006 |
| Harald Løvar Agentur AS | Wholesale & retail | 1996 |
| Hask Tolk AS | Professional & scientific | 2025 |
| Hatfactory AS | Information & communication | 2015 |
| Hathor Invest AS | Other services | 2026 |
| Havnegaten Invest AS | Real estate | 2000 |
| HD Eiendomsutvikling Da | Construction | 2020 |
| Healthcare Norway AS | Health & social care | 2020 |
| Hechri Bil AS | Wholesale & retail | 2023 |
| Heffermehl AS | Real estate | 2022 |
| Hefo AS | | 2005 |
| Hege Lille AS | Health & social care | 2013 |
| Heka Holding AS | Wholesale & retail | 2010 |
| Helmar Et Al. AS | | 2025 |
| Hemer Eiendom AS | Real estate | 2007 |
| Hemmersbach Norway AS | Information & communication | 2013 |
| Herbalife International Luxembourg Sarl | Wholesale & retail | 2003 |
| Herbalife Norway Products AS | Wholesale & retail | 1995 |
| Hercules Holding AS | Real estate | 1996 |
| Hermod Farms AS | Real estate | 2006 |
| Hest Invest AS | Financial services | 1990 |
| HIGH5 Invest AS | | 2010 |
| Hilsen Holding AS | Financial services | 2014 |
| Himell Eiendom Hemsedal AS | Real estate | 2026 |
| Hipotential AS | Professional & scientific | 2017 |
| Hit Sauna AS | Other services | 2026 |
| HK Agentur AS | Wholesale & retail | 2012 |
| HMS Design & Utvikling AS | Professional & scientific | 1994 |
| Hmwh Invest AS | Financial services | 2007 |
| Hoard AS | Professional & scientific | 2021 |
| Hoco AS | Administrative & support | 1986 |
| Hodne Kapital Invest AS | Real estate | 2018 |
| Hodne Shipping AS | Transport & logistics | 1997 |
| Hoel Tech AS | Information & communication | 2020 |
| Hofmo JBR Agencies AS | Wholesale & retail | 2007 |
| Hokulea AS | | 2005 |
| Holbye Prod AS | | 2021 |
| Holi Installasjon AS | Wholesale & retail | 2024 |
| Holi Norge AS | Administrative & support | 2023 |
| Holi Norge Holding AS | | 2026 |
| Holmefjord Holding AS | | 2021 |
| Holt Invest AS | | 2024 |
| Holtekilen Båtservice AS | Manufacturing | 2024 |
| Holzweiler Fornebu AS | Wholesale & retail | 2014 |
| Horecamarket AS | Information & communication | 2001 |
| Horizon Innovation AS | Information & communication | 2016 |
| House of Retail Holding AS | | 2026 |
| House of Sport AS | Wholesale & retail | 2026 |
| House of Sport Holding AS | | 2026 |
| HP Norge AS | Wholesale & retail | 2015 |
| HPS Holding AS | | 2020 |
| Hse & Travel AS | Health & social care | 2008 |
| HTT Capital Holdings AS | | 2023 |
| Huawei Technologies Co. Ltd | Administrative & support | 2016 |
| Huawei Technologies Norway AS | Information & communication | 2007 |
| Hudhelse AS | Wholesale & retail | 2025 |
| Humimpact Global AS | Administrative & support | 2026 |
| Hundsund AS | Real estate | 2005 |
| Hundsund Skolerestaurant AS | Hospitality | 2008 |
| Huse & Berg AS | Administrative & support | 2008 |
| I.C.D.S. Constructors Limited Nuf | Professional & scientific | 2025 |
| Ibh Eiendom AS | Real estate | 2018 |
| Ida Holding AS | Financial services | 2013 |
| Idax Capital Management AS | Professional & scientific | 1999 |
| Ideforvaltning Asker AS | | 1996 |
| Idema Holding AS | | 2024 |
| Ifa AS | Professional & scientific | 2024 |
| IFCO NORGE Norsk avdeling av utenlandsk foretak NUF | Administrative & support | 1997 |
| Imh AS | | 2005 |