| Plusa Holding AS | Construction | 2014 |
| PMB AS | Construction | 2013 |
| Pogo Ventures AS | Financial services | 2007 |
| Polbygg SP Z O O | Construction | 2008 |
| Polsk Senter AS | Information & communication | 2014 |
| Polsk Senter AS | Professional & scientific | 2020 |
| Power Node AS | Construction | 2024 |
| Pres Consulting AS | Professional & scientific | 2020 |
| Pres Holding AS | Real estate | 2018 |
| PRG Holding AS | Financial services | 2005 |
| Primetech AS | Information & communication | 2024 |
| Pristesteren AS | Professional & scientific | 2021 |
| Privatide AS | | 1989 |
| Proffbygg Bad & Renovering AS | Construction | 2022 |
| Proffbygg Holding AS | Construction | 2022 |
| Proffbygg PL AS | Construction | 2006 |
| Proffmaler AS | Construction | 2020 |
| Prosperity Farms AS | Agriculture & fishing | 2021 |
| Providensia AS | Information & communication | 2017 |
| Proxflyer AS | Professional & scientific | 2003 |
| Przedsiebiorstwo Handlowo Uslugowe Zbigniew Marcinczak | Mining & quarrying | 2006 |
| Prøsch & Tøstie AS | Wholesale & retail | 2009 |
| Psykolog Steffen Holthe AS | Health & social care | 2020 |
| PTK Advisory AS | Professional & scientific | 2019 |
| PTW Platou Invest AS | Financial services | 2017 |
| Puffin Invest AS | | 2023 |
| Pvo Invest AS | Financial services | 2006 |
| Ragni Invest AS | Administrative & support | 2005 |
| Raisin AS | Financial services | 2005 |
| Ramstad Terapi Og Yoga AS | Health & social care | 2025 |
| Ramstadsletta 15 AS | Real estate | 2014 |
| Randgaard Consulting AS | Professional & scientific | 2026 |
| Randles AS | | 2020 |
| Randsborg Eiendom AS | Manufacturing | 1997 |
| Randsborg Holding AS | Manufacturing | 2005 |
| RC Mester AS | Wholesale & retail | 2019 |
| RD Engineering AS | Professional & scientific | 2011 |
| Reclaim AS | Wholesale & retail | 2025 |
| Reco Bygg Og Skadeteknikk AS | Construction | 2004 |
| Regulo AS | Professional & scientific | 2015 |
| Reimo AS | Real estate | 1939 |
| Reimo Høvik AS | Real estate | 2022 |
| Reinertsen Invest AS | | 2023 |
| Remainly AS | | 2019 |
| Ren Power AS | Professional & scientific | 2022 |
| Renberg AS | | 2023 |
| Renneville AS | Real estate | 1997 |
| Renova - Anlegg, Transport & Eiendom AS | Real estate | 2021 |
| Renova - Gjenvinning, Anlegg & Transport AS | Construction | 2021 |
| Renova Holding AS | Real estate | 2021 |
| Repara AS | Information & communication | 2026 |
| Response Norge AS | Administrative & support | 1988 |
| Resultatpartner AS | Professional & scientific | 1995 |
| Rewind AS | Information & communication | 2024 |
| RH Invent AS | Manufacturing | 2025 |
| Ribspesialisten Akershus Marineservice Nuf | Manufacturing | 2009 |
| Ride on Bike AS | Wholesale & retail | 2024 |
| Ride on Bike Holding AS | Wholesale & retail | 2024 |
| Rieve Holding AS | Professional & scientific | 2015 |
| Ringkjøb Eiendom AS | Real estate | 1986 |
| Rinsenshine - Bilpleie AS | Other services | 2023 |
| Risbruna AS | Financial services | 2007 |
| Rivage AS | Wholesale & retail | 1988 |
| Rivit AS | Construction | 2012 |
| Rizon AS | Professional & scientific | 2025 |
| RM. Rudsar AS | Financial services | 2005 |
| Rodtind Holding AS | Wholesale & retail | 2010 |
| Rolv Lea AS | Professional & scientific | 2018 |
| Romcreo AS | Professional & scientific | 2008 |
| Rukke Invest AS | Financial services | 2017 |
| Ruvigny Thompson AS | Professional & scientific | 2016 |
| RWM AS | Real estate | 2014 |
| Røco AS | | 2000 |
| S&B Event Advisory AS | Professional & scientific | 2025 |
| S. Johnsen Holding AS | | 2025 |
| Saga Service Partner Prosjekt AS | Construction | 2025 |
| SAIL2ZERO AS | Professional & scientific | 2020 |
| Saillogic AS | Transport & logistics | 2015 |
| Saillogic Services AS | Administrative & support | 2015 |
| Sailor Swift Da | Arts & recreation | 2024 |
| Saint Firenze AS | Wholesale & retail | 2026 |
| Sakran AS | | 2020 |
| Salts Healthcare Norge AS | Professional & scientific | 2023 |
| Sandvik Og Hoem Invest AS | Financial services | 2018 |
| Sandviksveien 26 Ans | Real estate | 1986 |
| Sandviksveien 26 Eiendom AS | Real estate | 2011 |
| Sandviksveien 64 Da | Real estate | 2013 |
| Saraeh AS | | 2021 |
| Saroce AS | Health & social care | 2015 |
| Scalign AS | Information & communication | 2025 |
| Scandinavian Hub AS | Wholesale & retail | 2021 |
| Scandinavian Offshore Management AS | Transport & logistics | 2013 |
| Scandinavie AS | Real estate | 1994 |
| Scandinaviegaarden AS | Real estate | 2019 |
| Schrøder Holding AS | Information & communication | 2005 |
| Sectra Communication Aktiebolag Nuf | Information & communication | 2003 |
| Securus AS | Real estate | 2006 |
| Securus Consulting AS | Professional & scientific | 2015 |
| Seim Consult AS | Education | 1997 |
| Sel I Stuen AS | | 2021 |