| Holt AS | Professional & scientific | 2019 |
| Holt Consulting AS | Professional & scientific | 2016 |
| Holt Investment AS | Real estate | 2012 |
| Holt Oil AS | Financial services | 2005 |
| Holt Plan Og Takst AS | Professional & scientific | 2017 |
| Holt Properties AS | Real estate | 2021 |
| Holt-Seeland Holding AS | | 2022 |
| Holtab Norge AS | Professional & scientific | 2025 |
| Holtan's Billakkering AS | Other services | 2011 |
| Holtbråtveien 69 AS | Real estate | 2025 |
| Holte Academy AS | Education | 2016 |
| Holte Consulting AS | Professional & scientific | 2000 |
| Holte End AS | | 2020 |
| Holte Media AS | Information & communication | 2016 |
| Holtedahl AS | Financial services | 2018 |
| Holtegata 25 AS | Hospitality | 1965 |
| Holtegata 28 Eiendom AS | | 2026 |
| Holtegaten 26 AS | Real estate | 1994 |
| Holtegaten 28 AS | Real estate | 2010 |
| Holtegaten 29 AS | Real estate | 2012 |
| Holtegaten 29 Holding AS | Real estate | 2020 |
| Holtekilen Bolig AS | Real estate | 2021 |
| Holten Institutt Drift AS | Health & social care | 1998 |
| Holteng AS | Information & communication | 2021 |
| Holtensys Holding AS | Information & communication | 2025 |
| Holter&Thompson AS | Professional & scientific | 2024 |
| Holter-Sørensen & Co AS | Wholesale & retail | 1965 |
| Holterkollveien 6 AS | Real estate | 2005 |
| Holterkollveien 6 Bolig AS | Real estate | 2026 |
| Holtermann AS | Manufacturing | 2003 |
| Holtermann Solutions AS | Wholesale & retail | 2013 |
| Holtermann Trade Finance AS | Professional & scientific | 2020 |
| Holtermanns Veg Utvikling AS | Real estate | 2023 |
| Holtespar AS | Real estate | 2019 |
| Holtet Boligselskap 1 AS | Households | 1960 |
| Holtet Boligutvikling AS | Real estate | 2012 |
| Holtet Eiendomsutvikling AS | Real estate | 2019 |
| Holtet Fysio- Og Manuellterapi AS | Health & social care | 2021 |
| Holtet Gruppen AS | Transport & logistics | 2020 |
| Holtet Gruppen Eiendom AS | Real estate | 2022 |
| Holtet Jern Og Farge AS | Wholesale & retail | 1996 |
| Holtet Linje AS | Real estate | 2019 |
| Holtet Linje II AS | Real estate | 2016 |
| Holtet Matsenter AS | Wholesale & retail | 2006 |
| Holtet Pizza Og Kebabhus AS | Hospitality | 2020 |
| Holtet Spesialisttannhelse AS | Health & social care | 2015 |
| Holtet Takeaway AS | Hospitality | 2021 |
| Holtet Tannlegesenter AS | Health & social care | 2017 |
| Holtex AS | Wholesale & retail | 1987 |
| Holth Elektro AS | Construction | 2005 |
| Holthe Klinikk AS | Health & social care | 2025 |
| Holthegruppen AS | Administrative & support | 2026 |
| Holting AS | | 2019 |
| Holton Eiendom AS | Real estate | 2019 |
| Holton Estate AS | Real estate | 1991 |
| Holtre AS | Real estate | 2022 |
| Holtskog Underholdning AS | Arts & recreation | 2026 |
| Holtskogen 7 AS | Real estate | 2024 |
| Holtz Invest AS | | 2021 |
| Holum Studio AS | Professional & scientific | 2021 |
| Holvig AS | | 2022 |
| Holviga Invest AS | | 2025 |
| Holwech AS | | 2022 |
| Holy Holding AS | | 2025 |
| Holyflow AS | Education | 2024 |
| Holywater AS | | 2015 |
| Holø Invest AS | | 1998 |
| Homa Limited | Wholesale & retail | 2012 |
| Homan Innovation AS | Health & social care | 2025 |
| Homan Restaurantdrift AS | Hospitality | 2017 |
| Homan Zandi Holding AS | Real estate | 2005 |
| Homansbyen Butikkdrift AS | Wholesale & retail | 2014 |
| Homansbyen Eiendom AS | Real estate | 1992 |
| Homble Eiendom AS | Real estate | 1993 |
| Homble Park AS | Real estate | 2025 |
| Homble Solheim Advokatfirma AS | Professional & scientific | 2023 |
| Home Aspelund & Skram Bygg Da | Construction | 2005 |
| Home Food AS | Hospitality | 2018 |
| Home for Athletes AS | Education | 2025 |
| Home Holding AS | Real estate | 2023 |
| Home Konzept AS | Wholesale & retail | 2006 |
| Home of Attire AS | Wholesale & retail | 2018 |
| Home of Beauty AS | Other services | 2016 |
| Home of Golf AS | Arts & recreation | 2025 |
| Home Phoenix AS | Real estate | 2020 |
| Home Prima Domus AS | Real estate | 2023 |
| Home Run AS | | 2017 |
| Home Style AS | Professional & scientific | 2023 |
| Home Styling AS | Professional & scientific | 1994 |
| Home-Workspace AS | Professional & scientific | 2018 |
| HOME2ASIA Da | Professional & scientific | 2007 |
| Homeaid AS | Real estate | 2025 |
| Homedining AS | Information & communication | 2026 |
| Homekey AS | Information & communication | 2024 |
| Homekey Holdco AS | | 2026 |
| Homely AS | Administrative & support | 2017 |
| Homemade Oslo AS | Hospitality | 2024 |
| Homer Holding AS | | 2025 |
| Homesourcing AS | Information & communication | 2019 |
| Hometown AS | Construction | 2015 |