| PBT Eiendomsdrift AS | Administrative & support | 2015 |
| Pelin AS | Professional & scientific | 2002 |
| Pelles Verksted AS | Other services | 1992 |
| Pels & Pote AS | Wholesale & retail | 2014 |
| Petrus Media AS | Information & communication | 2014 |
| Phoenix Utvikling AS | Wholesale & retail | 2018 |
| Pilar Regnskap SA | Professional & scientific | 1969 |
| Pillar 00001 AS | Professional & scientific | 2026 |
| Pillar 00002 AS | Professional & scientific | 2026 |
| Pluss Truck Sales & Rentals AS | Administrative & support | 2007 |
| Pondius Capital AS | Wholesale & retail | 2022 |
| Pondius Holding AS | Wholesale & retail | 2005 |
| Pondius Operations AS | Wholesale & retail | 2022 |
| Pondius Real Estate AS | Real estate | 2022 |
| Portfix AS | Manufacturing | 2025 |
| POT-POURRI Jørgensen og Jørgensen | | 1986 |
| Poulsen Holding AS | Real estate | 2007 |
| Prefab Engineering AS | Manufacturing | 2023 |
| Prenta AS | Professional & scientific | 2022 |
| Presencia AS | Professional & scientific | 2023 |
| Prestegården Salg Og Service AS | Wholesale & retail | 2015 |
| Primo Piano AS | Hospitality | 2010 |
| Prinsegata 29 AS | Real estate | 2017 |
| Pro Stokke AS | Hospitality | 2022 |
| Profilklær AS | Manufacturing | 2008 |
| Prosjektgulv AS | Wholesale & retail | 2003 |
| Proweb AS | Information & communication | 1995 |
| Pukk & Graveservice AS | Construction | 2001 |
| Pukk & Graveservice Drift AS | Construction | 2015 |
| Puls Holding AS | Construction | 2024 |
| Påbygg Service AS | Manufacturing | 2024 |
| Quantum Holding AS | Real estate | 2020 |
| Ra Gartneri AS | Agriculture & fishing | 1989 |
| Raae Holding AS | | 2026 |
| Raco AS | Real estate | 1998 |
| Raglamyrveien 19 AS | Wholesale & retail | 1990 |
| Ragnar Sollie Ans | Construction | 1990 |
| Ragnhildrød Maskinlag SA | Administrative & support | 1962 |
| Railix AS | Real estate | 2000 |
| Rajan Byggservice AS | Construction | 2017 |
| Ramdalveien 4 AS | Real estate | 2016 |
| Regnskapskontoret Stokke AS | Professional & scientific | 2011 |
| Reidulf Berg Transport AS | Transport & logistics | 2024 |
| Resum Consulting AS | Education | 2021 |
| RHH Holding AS | | 2025 |
| Rimestad Holding AS | | 2025 |
| RK Vekst AS | Real estate | 2005 |
| Rk-Prosjekt AS | Professional & scientific | 2019 |
| Rmig AS | Wholesale & retail | 1957 |
| Roar Antonsen AS | Real estate | 2016 |
| Roar Hidle Holding AS | Construction | 1995 |
| Robion AS | | 2024 |
| Roeg Holding AS | Wholesale & retail | 2022 |
| Rolf Abrahamsen Holding AS | Financial services | 2017 |
| Rolf Hegna AS | Energy | 1998 |
| Rolfstad AS | Construction | 2024 |
| Royal Cleaning AS | Administrative & support | 2025 |
| RSG AS | Wholesale & retail | 1998 |
| RSG Eiendom AS | Real estate | 2006 |
| Rubicon Eiendom AS | Real estate | 2020 |
| Rufix AS | Transport & logistics | 1994 |
| Rune Bøe Holding AS | Construction | 2019 |
| Rasmussen & Skjelbred A/S | Construction | 1988 |
| Rådhusgaten 7 AS | Real estate | 2024 |
| Rødbølveien 16 AS | Real estate | 2019 |
| Røisgård Eiendom AS | Real estate | 2008 |
| Røisgård Holding AS | Real estate | 2006 |
| Røisgårds Transport AS | Transport & logistics | 1996 |
| Rørleggermester Aasvang AS | Construction | 2015 |
| Rørleggermester Rune Bøe AS | Construction | 2020 |
| Safeclean Stokke AS | Water & waste | 2014 |
| Sagabu AS | | 2021 |
| Sail on AS | Administrative & support | 2017 |
| Sandefjord Minigolf & Café AS | Arts & recreation | 2018 |
| Sandefjord Sprengningsservice AS | Construction | 2008 |
| Sandefjord Transport AS | Transport & logistics | 2005 |
| Sandsje-Hvitsten AS | Manufacturing | 1980 |
| Sandsje-Hvitsten Eiendom AS | Manufacturing | 1984 |
| Sandvik Kaldnes AS | Manufacturing | 2005 |
| Sandvik Kaldnes Eiendom AS | Real estate | 1991 |
| SB Nor AS | Real estate | 2019 |
| Scandinavian Motorcenter Nuf | Manufacturing | 2008 |
| Second Time AS | Wholesale & retail | 2020 |
| Seethru AS | Administrative & support | 2022 |
| Seippel AS | Construction | 2013 |
| Select Care AS | Health & social care | 2013 |
| Select NG AS | Wholesale & retail | 2019 |
| Selltech AS | Professional & scientific | 2025 |
| Selltech Holding AS | | 2025 |
| Senab Eikeland Øst AS | Wholesale & retail | 2016 |
| Sentrum Grill & Pizza AS | Hospitality | 2016 |
| Sfjt Property AS | Real estate | 2019 |
| Shaban & Øvland AS | Wholesale & retail | 2013 |
| Shant Holding AS | Wholesale & retail | 2022 |
| Sign Tech AS | Manufacturing | 2011 |
| SIGN1 Tønsberg AS | Manufacturing | 2015 |
| Skagerak Consulting AS | Professional & scientific | 1999 |
| Skagerak Itb AS | Professional & scientific | 2007 |
| Skagerak Økonomipartner AS | Professional & scientific | 2020 |
| Skalleberg Gartneri AS | Agriculture & fishing | 2017 |