| Pink by Utseende.No Strømmen AS | Wholesale & retail | 2024 |
| Pink Inspiration AS | Wholesale & retail | 2017 |
| Pistol Energy AS | Manufacturing | 2024 |
| Pistol Energy Holding AS | Manufacturing | 2024 |
| Pizza & Mezze AS | Hospitality | 2025 |
| Placeholding AS | | 2024 |
| Plantax Holding AS | Real estate | 2021 |
| Platesjappa AS | Wholesale & retail | 2013 |
| PLATFORM24 AS | Professional & scientific | 2021 |
| PLL Holding AS | | 2026 |
| PLM Group Norge AS | Wholesale & retail | 1991 |
| Plogveien 1 AS | Real estate | 2014 |
| Plus Pack AS | Wholesale & retail | 1974 |
| Polaris Consulting AS | Professional & scientific | 2026 |
| Polf AS | Information & communication | 2023 |
| Power Port AS | Construction | 2023 |
| Pp-X AS | Information & communication | 2021 |
| Pratt & Whitney Military Aftermarket Services Ltd | Professional & scientific | 2022 |
| Premium Brands Norway AS | Wholesale & retail | 2009 |
| Pricia AS | Professional & scientific | 2011 |
| Prinsdal Torg AS | Real estate | 2002 |
| Privatetterforsker THH Con AS | | 2017 |
| Pro Akt Opplæring Da | Education | 1999 |
| Proaktiv Romerike Holding AS | | 2026 |
| Proderma AS | | 2024 |
| Proderma Scandinavia AS | Health & social care | 2020 |
| Profi Håndverk AS | Construction | 2019 |
| Profin AS | Financial services | 2023 |
| Promedicus Drift AS | Health & social care | 2021 |
| Prometo AS | Information & communication | 2014 |
| Prooptics AS | Information & communication | 2015 |
| Prooptics Holding AS | Information & communication | 2015 |
| Prooptics Ipr AS | Information & communication | 2016 |
| Prosjektkontoret Romerike AS | Construction | 1996 |
| Proud Pakistan AS | Hospitality | 2022 |
| Proximi Consulting AS | Information & communication | 2024 |
| PS Regnskap AS | Professional & scientific | 2013 |
| Pselacon AS | | 2021 |
| PST Eiendom AS | Real estate | 2008 |
| Psykiater Shaygani AS | Health & social care | 2010 |
| Psykologene Strand & Bors Birkeland AS | Health & social care | 2014 |
| Psykologspesialist Monica Flock AS | Health & social care | 2013 |
| Puben Til Faanes AS | Hospitality | 2015 |
| Public Nova Security AS | Administrative & support | 2017 |
| Pumpebilen AS | Transport & logistics | 2017 |
| Puslingen Og Gamlingen Ans | | 1990 |
| Påsan X AS | | 2025 |
| Q-Solutions AS | Construction | 2023 |
| Qleanair Scandinavia AB Nuf | Wholesale & retail | 2000 |
| Qsystems Retail AS | Information & communication | 1999 |
| Quality Food AS | Hospitality | 2023 |
| Quizgutta AS | Arts & recreation | 2022 |
| Ra & Ma Invest AS | | 2026 |
| Raa Capital AS | | 2025 |
| Radonmannen AS | Professional & scientific | 2012 |
| Railcom AS | Construction | 2016 |
| Rallab AS | Wholesale & retail | 2025 |
| Rama Krishna AS | Hospitality | 2021 |
| Raphael AS | Transport & logistics | 2025 |
| Rav Ans | Wholesale & retail | 2001 |
| Raymond Pettersen AS | Professional & scientific | 2016 |
| Real Bygg & Eiendom AS | Real estate | 2024 |
| Red AS | Real estate | 2011 |
| Regn 4U AS | Professional & scientific | 2009 |
| Regnskap 4U AS | Professional & scientific | 2020 |
| Regnskap Og Vikartjenester AS | Professional & scientific | 1985 |
| Regnskapsbyrå AS | Professional & scientific | 2000 |
| Regnskapsrom AS | Professional & scientific | 2024 |
| Regnskapsservice AS | Professional & scientific | 1962 |
| Rehub AS | Information & communication | 2024 |
| Reinor AS | Real estate | 2004 |
| Reis Entreprenør AS | | 2025 |
| Renhold Selam AS | Administrative & support | 2024 |
| Renovering Pluss AS | Information & communication | 2023 |
| Republic Sportspub AS | Hospitality | 2019 |
| Res Solution AS | Professional & scientific | 2024 |
| Resolve B4 AS | Professional & scientific | 2026 |
| Retailtech AS | Information & communication | 2017 |
| Rett Bygg AS | Construction | 2012 |
| Rett Leasing AS | Administrative & support | 2021 |
| Rettsinfo.No AS | Professional & scientific | 2018 |
| Retura Norge AS | Professional & scientific | 2001 |
| Reutz Holding AS | Financial services | 2016 |
| Reyr Eiendom AS | Real estate | 2019 |
| Rfe Holding AS | | 2021 |
| RGH Eiendom AS | Real estate | 2013 |
| RGH Partner AS | Real estate | 2011 |
| Riis Bygg AS | Real estate | 2005 |
| Riis Bygg Entreprenør AS | Professional & scientific | 2005 |
| Riisalleen Invest AS | Real estate | 1997 |
| Riisehana Eiendom AS | Real estate | 2018 |
| Riisehana Invest AS | Real estate | 2018 |
| Risvang Tannteknikk AS | Manufacturing | 1999 |
| Ritiratu AS | Real estate | 2018 |
| Ro Nordic AS | | 2026 |
| Robert Ler Revisjon AS | Professional & scientific | 2008 |
| Roblo Invest AS | Professional & scientific | 2013 |
| Robust Bolig AS | Real estate | 2019 |
| Robust SPV 2 AS | | 2021 |
| Robust SPV 3 AS | | 2021 |