| Myklerudveien 9 AS | Real estate | 2012 |
| Myklerudveien Eiendom AS | Real estate | 2020 |
| MØBELSNEKKER1 AS | Manufacturing | 2012 |
| Møterom 4 AS | Professional & scientific | 2017 |
| Nesodden Advokatkontor AS | Professional & scientific | 2025 |
| Nesodden Hus AS | Construction | 2025 |
| Nesodden Hus Og Hage AS | Administrative & support | 2014 |
| Nesodden Vann & Varme AS | Construction | 2015 |
| Nilsen Og Hauge Sjøtjenester AS | Wholesale & retail | 2026 |
| Nmi Invest AS | | 2024 |
| Noextra Ans | Other services | 2004 |
| Nops AS | Real estate | 2024 |
| Nor Yachting AS | Wholesale & retail | 2003 |
| Nordic Academy of Martial Arts AS | Wholesale & retail | 2002 |
| Normann Eiendom AS | Real estate | 2010 |
| Norpump AS | Construction | 2023 |
| Norpump Service AS | Construction | 2025 |
| Norsk Marint Testsenter AS | Professional & scientific | 2025 |
| Norsk Pharma AS | Wholesale & retail | 2014 |
| Norsk Yrkesdykkerskole AS | Education | 1989 |
| Norway Investment AS | Real estate | 2016 |
| Nova Jet AS | | 2025 |
| Nyd Kompetanse AS | Education | 2005 |
| Næring Og Nærhet AS | Health & social care | 2024 |
| Odden Utvikling AS | | 2025 |
| ON24 Norge AS | Professional & scientific | 2024 |
| Orange Studio AS | Arts & recreation | 2008 |
| Oslo Follo Industri AS | Water & waste | 2017 |
| Oy-Hal AS | | 2018 |
| Patro AS | | 2012 |
| Pe to AS | Wholesale & retail | 1995 |
| Perma Nordic AS | Wholesale & retail | 2019 |
| Peroliv Invest AS | | 2025 |
| Pizzavibes by Nannestad & Vassbotn Da | Wholesale & retail | 2025 |
| Primitivo Ristorante AS | Hospitality | 2022 |
| Pro Cure AS | Professional & scientific | 2001 |
| Pro Shop AS | Professional & scientific | 1990 |
| Proveks AS | Wholesale & retail | 2004 |
| Purkholmen Holding AS | Wholesale & retail | 2023 |
| Q Solutions AS | Professional & scientific | 2012 |
| Qualivally AS | Information & communication | 2026 |
| Re-Duce AS | Professional & scientific | 2011 |
| Reduce Invest AS | Real estate | 2022 |
| Reiselederen AS | Administrative & support | 2017 |
| Retail Repair AS | Other services | 2020 |
| Retail Support Norge AS | Administrative & support | 2018 |
| Risting AS | Education | 2022 |
| Rocknroll Catering AS | Hospitality | 2005 |
| Ruud AS | Administrative & support | 2021 |
| Ryde Holding AS | | 2026 |
| Ryel AS | Real estate | 2019 |
| Ryel Elektriske AS | Construction | 2024 |
| Rørfordeleren AS | Construction | 2026 |
| Samcom AS | Construction | 2006 |
| Samuel Miniprosjekt AS | Construction | 1989 |
| Sea-Horse Production | | 1996 |
| Sefram AS | Real estate | 2022 |
| Sellit AS | Professional & scientific | 2008 |
| Sellit Holding Da | Real estate | 2001 |
| Selvær Kran AS | Transport & logistics | 2024 |
| Senseaid AS | Wholesale & retail | 2024 |
| Service Forum Da | Other services | 1991 |
| Shaugland Holding AS | | 2026 |
| Sibeth Hoff AS | Information & communication | 2019 |
| Sivilingeniør Albert Ølnes AS | Professional & scientific | 2005 |
| Skandinavisk Miljøteknikk Holding AS | | 2022 |
| Skandinavisk Oljesikkerhet AS | Wholesale & retail | 1989 |
| Skippers Brygga AS | Hospitality | 2024 |
| Skippers Holding AS | | 2024 |
| Skullerud Consulting AS | Professional & scientific | 2015 |
| Sleepingotto AS | Arts & recreation | 2017 |
| Sora Noir Da | Other services | 2026 |
| Soundcare AS | Manufacturing | 1996 |
| Spiskammerset Selskapsmat AS | Hospitality | 1999 |
| Stensrud Eiendom AS | Real estate | 2005 |
| Stille Stund AS | Health & social care | 2024 |
| Stratx AS | Professional & scientific | 2026 |
| Su Casa Coffee Roasters AS | Manufacturing | 2018 |
| Sunnere Jeg AS | Education | 2007 |
| Svein Tyreng AS | Construction | 2004 |
| Svenner Holding AS | Real estate | 2020 |
| T20 Eiendom AS | Real estate | 1999 |
| Tangen Sentrum AS | Real estate | 2025 |
| Tangenten Eiendom AS | Real estate | 2021 |
| Tank Og Spyleservice AS | Construction | 2023 |
| TBM Transport AS | Transport & logistics | 2021 |
| TBN Invest AS | Financial services | 2005 |
| Tea of Asia AS | Wholesale & retail | 2016 |
| Teas Søderlinds Hage AS | Real estate | 2025 |
| Teg Holding AS | Real estate | 2008 |
| Teknisk Management AS | Administrative & support | 2020 |
| Tekstuell AS | Professional & scientific | 2021 |
| Terraprint AS | Professional & scientific | 2025 |
| Tfok Holding 2 AS | | 2026 |
| Tfok Holding AS | Real estate | 2025 |
| Thrillout AS | Arts & recreation | 2013 |
| Thrillout Live AS | Information & communication | 2019 |
| Tiger Og Drage Da | Education | 2010 |
| Tind of Norway AS | Wholesale & retail | 2017 |
| Tmk-Racing AS | Arts & recreation | 2013 |