| Nesttunvegen 92 AS | Real estate | 2019 |
| Nesttunvegen 99 Invest AS | Real estate | 2013 |
| Nesttunveien 100 AS | Real estate | 2001 |
| Nesttunveien 103 AS | Real estate | 2001 |
| Nesttunveien 94 AS | Real estate | 2017 |
| Nettnor Digital AS | Information & communication | 2024 |
| Neutrum Holding AS | Real estate | 1984 |
| Nevropsykologisk Helseteam AS | Health & social care | 2024 |
| Nhe Investment AS | | 2025 |
| Nimbus Solutions AS | Wholesale & retail | 2016 |
| Nish Holdings AS | | 2022 |
| Noahs Arc AS | Wholesale & retail | 2024 |
| Noatun Marine AS | Transport & logistics | 2016 |
| Noctua Holding AS | | 2026 |
| Noetic AS | Information & communication | 2020 |
| Nofas Bergen AS | Administrative & support | 2015 |
| Noja AS | Real estate | 2011 |
| Nor Varme AS | Construction | 2012 |
| Nordanger Services AS | Manufacturing | 2012 |
| Nordgårds Innkjøpsassistanse AS | Professional & scientific | 2018 |
| Nordic 24 Aktiv AS | Construction | 2017 |
| Nordic Arena Nettverk Bergen AS | Professional & scientific | 2011 |
| Nordisk Byggdesign AS | Construction | 2009 |
| Nordlys Filmrett AS | Information & communication | 2014 |
| Nordstaden AS | Information & communication | 2025 |
| Nordstrand Media AS | Arts & recreation | 2013 |
| Nordsyd AS | Real estate | 2016 |
| Norebø Holding AS | | 2017 |
| Norsemen Miniatures AS | Arts & recreation | 2021 |
| Norsk Agentkontakt Da | Wholesale & retail | 1995 |
| Norsk Låsservice AS | Real estate | 2013 |
| Norsk Låsservice Og Møre Beslag AS | Real estate | 2012 |
| Norske Nettbutikker AS | Wholesale & retail | 2012 |
| Norske Nettbutikker Holding AS | Wholesale & retail | 2005 |
| Norskinfo AS | Information & communication | 2012 |
| North Island AS | Financial services | 2012 |
| North Tandem AS | Wholesale & retail | 2018 |
| Northstep AS | Information & communication | 2012 |
| Norwegian Energy Consult AS | Professional & scientific | 2016 |
| Norwegian Product Solutions AS | Professional & scientific | 2022 |
| Norwegian Property Rental AS | Real estate | 2015 |
| Nova Bergen AS | Construction | 2007 |
| Nova Shipbrokers AS | Professional & scientific | 2023 |
| Novo Invest AS | | 2005 |
| Nutcracker AS | Professional & scientific | 2023 |
| Nuten Film AS | Information & communication | 2013 |
| Nuten Invest AS | Real estate | 2017 |
| Nybø Eiendomsutvikling AS | Real estate | 2023 |
| Nydal Bolig AS | Real estate | 2015 |
| Nydal Bygg Eftf. AS | Construction | 2003 |
| Nydal Byggevarer AS | Wholesale & retail | 2013 |
| Nydal Eiendom AS | Real estate | 1974 |
| Nye MZB Holding 2 AS | Real estate | 2026 |
| Nye MZB Holding AS | Real estate | 2026 |
| Nye NZB Holding 2 AS | Real estate | 2026 |
| Nye NZB Holding AS | Real estate | 2026 |
| Nye Rosendahl Management AS | Real estate | 1984 |
| Nygård & Krantz Eiendom AS | Real estate | 2012 |
| Nygårdsgaten 4 AS | Real estate | 2020 |
| Nyhavn 1 Utvikling AS | Real estate | 2017 |
| Nylund's Malerservice AS | Construction | 2023 |
| Nyskapende Technologi AS | Professional & scientific | 2018 |
| NZB Holding AS | Real estate | 2005 |
| Næringshus AS | Professional & scientific | 2012 |
| Næringsinvest AS | Real estate | 2007 |
| Nøstebarn AS | Wholesale & retail | 2020 |
| Nøttveit Holding AS | | 2021 |
| O Kavli AS | Manufacturing | 1994 |
| Oa Invest AS | Wholesale & retail | 2005 |
| Oase of Norway AS | Information & communication | 2023 |
| Oat Invest AS | | 2018 |
| Oat Studio AS | Wholesale & retail | 2025 |
| Obst! AS | Information & communication | 2014 |
| Octopus AS | Construction | 1996 |
| Odark Holding AS | Real estate | 2020 |
| Oddmund Knarvik AS | Wholesale & retail | 1987 |
| Odin Bygg AS | Construction | 2000 |
| Ohe Trading AS | Wholesale & retail | 1983 |
| Ok+ Bygg AS | Construction | 2024 |
| Ok+ Eiendom AS | Real estate | 2026 |
| Ok+ Holding AS | Construction | 2024 |
| Okaz AS | Wholesale & retail | 2025 |
| Olaf Johnsen & Søn AS | Construction | 1984 |
| Olderdalen Seksjonsbygg AS | Real estate | 2007 |
| Ole Pål Nesttun Malerfirma AS | Construction | 1989 |
| Oliken AS | | 2024 |
| Olimb Rørinspeksjon Bergen AS | Construction | 2021 |
| Omnia Bilombygging AS | Other services | 2016 |
| Onarheim Holding AS | | 2026 |
| Opa Glass AS | Construction | 1974 |
| Opa Glass Holding AS | Construction | 2020 |
| Oppussing Kameratene AS | Real estate | 2023 |
| Optex AS | Real estate | 1994 |
| Optibo Eiendom AS | Real estate | 2020 |
| Optibo Holding AS | Professional & scientific | 2021 |
| Optibo Utbygging AS | Professional & scientific | 2017 |
| Optimist Holding AS | | 2024 |
| Orchideja Bergen AS | Wholesale & retail | 2026 |
| Origo Terapi Og Veiledning AS | Health & social care | 2024 |
| Orion Bulk KS | Transport & logistics | 2019 |