| Phenix Holding AS | Administrative & support | 2016 |
| Phenix Human Capital AS | Administrative & support | 2018 |
| Pib AS | | 2019 |
| Pilot Consult AS | Administrative & support | 1998 |
| Pizza Mamma Mia AS | Hospitality | 2020 |
| Pli Invest AS | Financial services | 2005 |
| PLUS8 Invest AS | | 2023 |
| PLV Holding AS | Financial services | 2008 |
| Poppebarna AS | | 2019 |
| Prodigi AS | Professional & scientific | 2023 |
| Prospicio AS | | 2025 |
| Prosten AS | Financial services | 2017 |
| PRS Invest AS | | 2024 |
| Prub Invest AS | Real estate | 2012 |
| Pyromania AS | Manufacturing | 2015 |
| Papermill A/S | Wholesale & retail | 1984 |
| R&A Eiendom AS | Real estate | 2025 |
| Ramble on AS | Professional & scientific | 2021 |
| Rambukk Consulting AS | Professional & scientific | 2011 |
| Rapido AS | | 2019 |
| Rauskridnibbi AS | | 2023 |
| Rebell Production AS | Administrative & support | 2016 |
| Red View AS | Arts & recreation | 2014 |
| RF28 Holding AS | | 2025 |
| Ria Consult AS | Wholesale & retail | 2024 |
| Risbu AS | Real estate | 2003 |
| Risengveien Eiendom AS | Real estate | 2015 |
| Risikoledelse AS | Professional & scientific | 2021 |
| River Creek AS | Financial services | 2015 |
| Rolf Svendsen AS | Professional & scientific | 2017 |
| Ross-Havet AS | Financial services | 2011 |
| Rskb Eiendom AS | Real estate | 2017 |
| Runway Rock Fest AS | Administrative & support | 2026 |
| Rustad Investments AS | Real estate | 1996 |
| Sacto AS | Information & communication | 2026 |
| Sagace AS | Professional & scientific | 2026 |
| Sahara AS | Real estate | 2019 |
| Sailer Holding AS | Information & communication | 2019 |
| Sandvika Service AS | Manufacturing | 2020 |
| Sanida AS | Financial services | 2005 |
| Sankelab AS | Education | 2025 |
| Sato Invest AS | | 2023 |
| Sats På Helse AS | Professional & scientific | 2023 |
| SB Dalan AS | Professional & scientific | 2018 |
| Scandic Drive AS | Transport & logistics | 2015 |
| Scandinavian Leadership AS | Professional & scientific | 2003 |
| SD Nordics Holding AS | Professional & scientific | 2023 |
| Selitar AS | Real estate | 1990 |
| Selmu AS | | 2026 |
| Selvgjort Er Velgjort AS | Real estate | 2019 |
| Sestri AS | Professional & scientific | 2026 |
| SG Capital AS | | 2019 |
| Sherpa Business Consulting AS | Financial services | 2005 |
| Silver Spoon AS | Real estate | 2008 |
| Silversmith AS | Financial services | 2013 |
| Simen Andresen AS | Professional & scientific | 2019 |
| Sindre Schei Holding AS | | 2025 |
| Sinus Nitens AS | | 2026 |
| Siri Abrahamsen Consulting AS | Professional & scientific | 2008 |
| Slekt AS | Financial services | 2015 |
| Slippage Invest AS | | 2021 |
| Sloerassen Invest AS | Professional & scientific | 2014 |
| Smud Arkitektur AS | Professional & scientific | 2024 |
| Snoma Invest AS | | 2019 |
| Sobral Invest AS | | 2021 |
| Sonia Og Harman AS | Real estate | 2005 |
| Soo Invest AS | Financial services | 2005 |
| Spe Holding AS | Administrative & support | 2011 |
| Spisskompetanse AS | Health & social care | 2019 |
| SSH 181 Holding AS | | 2023 |
| Stangeby Holding AS | | 2021 |
| Stasjonsveien 56 AS | Real estate | 2015 |
| Staurset-Bakke AS | Professional & scientific | 2022 |
| Steinbit AS | Information & communication | 1998 |
| Stem Management AS | Real estate | 2003 |
| Strandvik Holdingselskap AS | | 2021 |
| Stubberudveien 4 AS | Real estate | 2021 |
| Studio Nord AS | Information & communication | 2024 |
| Summertown AS | Real estate | 2007 |
| Sundstein Eiendom AS | Real estate | 2026 |
| Supermade AS | | 2020 |
| Superson Invest AS | Real estate | 2015 |
| Svein Mjåset AS | Professional & scientific | 2010 |
| Svingen Gruppen AS | Real estate | 2005 |
| Sømhuset AS | Manufacturing | 2013 |
| T & T Tennisakademi Da | Education | 2016 |
| Takstmann Atle Arkøy AS | Real estate | 2012 |
| Tannlaus AS | Health & social care | 1998 |
| Tannlege Bratli AS | Health & social care | 2024 |
| Tannlegene Hugo AS | Health & social care | 2024 |
| TDL Invest AS | Transport & logistics | 2007 |
| Technologic AS | Information & communication | 2018 |
| Tega Invest AS | | 2018 |
| Tellefco Invest AS | Professional & scientific | 2021 |
| Terjetun Invest AS | | 2022 |
| TF Arnesen AS | Professional & scientific | 2025 |
| TF Arnesen Holding AS | Professional & scientific | 2025 |
| Tga Consulting AS | Financial services | 2005 |
| Themar Eiendom AS | Real estate | 2007 |
| Thisway Holding AS | Wholesale & retail | 2021 |