| Pamir AS | Professional & scientific | 1998 |
| Party Animals Da | Arts & recreation | 2006 |
| PDG Invest AS | | 2026 |
| Pedersens Regnskapskontor AS | Professional & scientific | 2001 |
| Pedmaster AS | Professional & scientific | 2024 |
| Pixiliated AS | Wholesale & retail | 2023 |
| Port Og Alarmsystem AS | Manufacturing | 2004 |
| Porto Groom AS | Other services | 2021 |
| Pro Concept AS | Real estate | 2016 |
| Pw-Invest AS | Real estate | 2017 |
| RB Norge AS | Wholesale & retail | 2016 |
| Re-Tech AS | Water & waste | 2023 |
| Refring Maskin & Massetransport AS | Transport & logistics | 2024 |
| Rita Og Bjørn Myrås Ans | Real estate | 1996 |
| RK Komplett AS | Wholesale & retail | 2025 |
| Robertson Holding AS | | 2025 |
| Roer Holding AS | | 2026 |
| Rosnes Gartneri Da | Agriculture & fishing | 1988 |
| Rygge Eiendomservice AS | Construction | 2016 |
| Rygge Elektro AS | Construction | 2019 |
| Rygge Grunneierlag | Real estate | 1977 |
| Rygge Gårdsdrift, Anlegg Og Bygg Nuf | Professional & scientific | 2022 |
| Rygge Kiropraktorklinikk AS | Health & social care | 2018 |
| Rygge Last Og Buss AS | Wholesale & retail | 2014 |
| Rygge Meieri AS | Manufacturing | 2019 |
| Rygge Mølle Og Handelsforretning AS | Real estate | 1879 |
| Rygge Og Omland Kontraktdyrkerlag SA | Agriculture & fishing | 1961 |
| Rygge Sivile Lufthavn AS | Real estate | 1999 |
| Rygge Tannlegesenter AS | Health & social care | 1992 |
| Rygge Torg AS | Real estate | 2022 |
| Ryggeraet 49 AS | Real estate | 2006 |
| Ryggeveien Næringsbygg AS | Real estate | 2000 |
| Ryggeveien Næringspark AS | Real estate | 2026 |
| Råde Graveservice AS | Construction | 1978 |
| Råde Graveservice Eiendom AS | Construction | 1990 |
| Råde Rørleggerservice AS | Construction | 2006 |
| Rådeskogen Vanningslag SA | Agriculture & fishing | 1986 |
| Rødsrud Plastmottak AS | Wholesale & retail | 2001 |
| Rørleggermester Oven AS | Construction | 2017 |
| Rørskogen Lagermoduler AS | Real estate | 2021 |
| Rørteamet AS | Construction | 2023 |
| Røstad Familiecamping AS | Hospitality | 2005 |
| Sai Holding AS | Construction | 2022 |
| Sanitær- Og Varmeteknikk AS | Construction | 2023 |
| Scan Hogg Eiendom AS | Real estate | 2011 |
| Skarpaas Invest AS | | 2024 |
| Skjebergveien 21 AS | Real estate | 2024 |
| SKL Maskin AS | Wholesale & retail | 2026 |
| Skoglunds AS | Wholesale & retail | 2023 |
| Skumtech AS | Manufacturing | 1998 |
| Smart Spectra Eiendom AS | Real estate | 2016 |
| Solano AS | Wholesale & retail | 2019 |
| Solberghøgda Vanningslag SA | Water & waste | 2023 |
| Spectra Auto Østfold AS | Wholesale & retail | 2011 |
| Spiraltrapp.No AS | Manufacturing | 2023 |
| ST. Croixgaten 8 AS | Real estate | 2022 |
| Starcarauto AS | Wholesale & retail | 2023 |
| Stasjonsveien 10 AS | Real estate | 2021 |
| Stasjonsveien 19 AS | Wholesale & retail | 2005 |
| Statsminister Torpsvei 51 AS | Real estate | 2026 |
| Stig Gammelsrød AS | Agriculture & fishing | 2020 |
| Storgata 1 Næring AS | Real estate | 2024 |
| Storveien 5 a Eiendom AS | Real estate | 1990 |
| Studio Touchup AS | Other services | 2022 |
| Super Bygg AS | Construction | 2017 |
| Susanne Braathe Invest AS | | 2025 |
| Svaneveien 14 AS | Real estate | 2024 |
| Svaneveien 3 AS | Real estate | 1967 |
| Systemdekke Og Forskaling AS | Construction | 2022 |
| T Hausmann AS | Professional & scientific | 2013 |
| T.S.B. Snekker AS | Construction | 2017 |
| Tannlege Tonje Schille AS | Health & social care | 2020 |
| Teleservice AS | Wholesale & retail | 1990 |
| Terra AS | Transport & logistics | 1995 |
| TH Industribygg AS | Construction | 2021 |
| The Voice of Norway AS | Information & communication | 2024 |
| Thea Katarina Bråten AS | Other services | 2021 |
| Thema International Norge Ans | Wholesale & retail | 2001 |
| Thib AS | Real estate | 2026 |
| Thu V H Holding AS | | 2025 |
| Tomie Holding AS | | 2021 |
| Troll Logistikk AS | Wholesale & retail | 2022 |
| Tveter Sports Consult AS | Education | 2026 |
| Tøp Invest AS | Financial services | 2023 |
| Unik Byggmester AS | Construction | 2024 |
| Unitree AS | Administrative & support | 2021 |
| Urstad Eiendom AS | Real estate | 1999 |
| Varme & Elektrokomfort AS | Construction | 2014 |
| Varna Forlag AS | Information & communication | 2018 |
| Veltry AS | Professional & scientific | 2025 |
| Veterinærklinikk Hanne Kure AS | Professional & scientific | 2011 |
| Viei Holding AS | Real estate | 2024 |
| Vika Grønt SA | Other services | 2005 |
| Viken Bygg & Montasje AS | Construction | 2020 |
| Viking Hengerpartner AS | Wholesale & retail | 2025 |
| Voksing House Holding AS | Other services | 2013 |
| Voldbrua Vanningslag SA | Agriculture & fishing | 1978 |
| WI-TO SALONGEN Nina Vold Løkkeberg og Marit Bø Nilsen ANS | Other services | 1988 |
| Wold Bygg AS | Construction | 2025 |
| Woodchuck AS | Manufacturing | 2020 |