| Homevalley Invest AS | | 2024 |
| Homework AS | | 2022 |
| Homex AS | Other services | 2024 |
| Homexo AS | Professional & scientific | 2015 |
| Homla Næring AS | Real estate | 2020 |
| Homleid AS | Wholesale & retail | 2026 |
| Homlungen AS | Professional & scientific | 2016 |
| Homm Holding AS | | 2023 |
| Hommersand Invest AS | Financial services | 2005 |
| Hommersåk Eiendom AS | Real estate | 2025 |
| Hommersåkveien 20 Eiendom AS | Real estate | 2014 |
| Hommevik AS | Professional & scientific | 2007 |
| Homni AS | Real estate | 2024 |
| Homo Sapiens AS | | 2025 |
| Hon 054 Holding AS | | 2023 |
| Hone Digital AS | Information & communication | 2020 |
| Honest Food AS | Hospitality | 2017 |
| Honey Global Concept | Administrative & support | 2016 |
| Honeybay Holding AS | Arts & recreation | 2022 |
| Honeybay Music AS | Arts & recreation | 2022 |
| Honeycomb AS | Information & communication | 2017 |
| Hong Holding AS | Real estate | 1992 |
| Honningbarna AS | Arts & recreation | 2017 |
| Honningdal Elektro AS | Construction | 2019 |
| Honningkrukken Ventures AS | | 2023 |
| Honningsvåg Handelseiendom AS | Real estate | 2016 |
| Honos Consulting AS | Professional & scientific | 2012 |
| Honungsdugg AS | | 2018 |
| Hooloovoo AS | | 2022 |
| Hoomey Boligsalg AS | Information & communication | 2014 |
| Hoong Eiendom AS | Hospitality | 2016 |
| Hoong Holding AS | Hospitality | 2003 |
| Hoot AS | Administrative & support | 2025 |
| Hooyo Catering AS | Hospitality | 2012 |
| Hop on AS | Transport & logistics | 2024 |
| Hop on Denmark AS | Administrative & support | 2025 |
| Hop on Eiendom AS | Real estate | 2024 |
| Hop on Starline AS | Transport & logistics | 2019 |
| Hop on Sweden AS | Administrative & support | 2025 |
| Hopae Norway AS | Information & communication | 2025 |
| Hope & Co AS | Professional & scientific | 2025 |
| Hope Appliances AS | Wholesale & retail | 2023 |
| Hope Hair AS | Other services | 2007 |
| Hope Hair Holding AS | | 2025 |
| Hope Holtet AS | Other services | 2011 |
| Hope Insights AS | | 2025 |
| Hope-Holding AS | | 2024 |
| Hopes & Dreams AS | Professional & scientific | 2022 |
| Hopland & Co AS | Professional & scientific | 2005 |
| Hopp for Håp AS | Information & communication | 2018 |
| Hoppsy Daisy Holding AS | Real estate | 2006 |
| Hopptimistens Innsamlingsstiftelse - Hjelpemiddelstøtte for Funksjonshemmede | Other services | 2014 |
| Hopsneset AS | Professional & scientific | 2020 |
| Hopsneset Eiendom AS | Real estate | 2004 |
| Hopstock Eiendom AS | Real estate | 1988 |
| Hopstock Helse AS | Health & social care | 2019 |
| Hor Invest AS | | 2022 |
| Horatio AS | Real estate | 2018 |
| Horda Booking AS | Professional & scientific | 2025 |
| Horeca AS | Administrative & support | 2002 |
| Horecas AS | Wholesale & retail | 2020 |
| Horg AS | Professional & scientific | 2019 |
| Horgmo Holding AS | Financial services | 2022 |
| Horisont Consulting AS | Financial services | 2005 |
| Horisont Consulting Group AS | Professional & scientific | 2022 |
| Horisont Eiendomsmegling AS | Real estate | 2010 |
| Horisont Holding AS | Professional & scientific | 2022 |
| Horisont Kapitalforvaltning AS | Financial services | 2012 |
| Horisont Reiser Ans | Administrative & support | 1993 |
| Horisonterra Aktiebolag Nuf | Construction | 2014 |
| Horix Holding AS | | 2023 |
| Horizon Holding AS | | 2023 |
| Horizon Invest AS | | 2026 |
| Horizon Maritime Offshore AS | Transport & logistics | 2019 |
| Horizon Norway AS | Professional & scientific | 2024 |
| Horizon RCS Europe Limited | Administrative & support | 2014 |
| Horizon Wines AS | Wholesale & retail | 2009 |
| Horizons Global Technology Norway AS | Information & communication | 2023 |
| Horizonte AS | Information & communication | 2013 |
| Horkuc D.O.O. Nuf | Construction | 2023 |
| Horn & Co AS | Professional & scientific | 2020 |
| Horn African Visum Og Reise Service Ans | Administrative & support | 2016 |
| Horn Collection Da | Wholesale & retail | 1992 |
| Horn I Siden AS | Education | 2017 |
| Horn Invest AS | | 2019 |
| Horn Investmenst AS | | 2026 |
| Horn Investment AS | | 2024 |
| Horn Media Group AS | Professional & scientific | 1996 |
| Horn of North AS | Wholesale & retail | 2013 |
| Horn-Berlin Holding AS | | 2009 |
| Hornaas Musikk AS | Wholesale & retail | 1993 |
| Hornberg AS | | 2021 |
| Hornburg Invest AS | | 2022 |
| Horndal Investering AS | Financial services | 2018 |
| Hornelen Kapital AS | | 2023 |
| Horneman Consult Invest AS | Professional & scientific | 2016 |
| Horneria AS | Wholesale & retail | 2026 |
| Horngården Da | Real estate | 2010 |
| Hornslien Horizons Holding AS | | 2021 |
| Hornstuen Health, Consulting & Development AS | Health & social care | 2026 |