| Oko AS | Financial services | 2005 |
| Olav Hauge Kolonial AS | Wholesale & retail | 2002 |
| Ole Jakob Ferkingstad Maskin AS | Construction | 2019 |
| Ole Morgan Eliussen AS | | 2025 |
| Pagurus Sales AS | Agriculture & fishing | 2023 |
| Pajama AS | Transport & logistics | 2026 |
| Pang and Ramys Restaurant AS | Hospitality | 2022 |
| Partrederiet Grindhaug Da | Agriculture & fishing | 2017 |
| PBS Bemanning AS | Administrative & support | 2007 |
| PCV Burger Åkra AS | Hospitality | 2024 |
| Pema Invest AS | Real estate | 1993 |
| Per Inge Sjurseth AS | Construction | 2013 |
| Perlestrikk AS | Wholesale & retail | 2013 |
| Playfair Mining Norway AS | Professional & scientific | 2021 |
| Pop Inn Frisørsalong AS | Other services | 2002 |
| QUALIS1 AS | Professional & scientific | 2021 |
| R J S Rørmerking Ans | Construction | 1999 |
| Raglamyrvegen 8 AS | Real estate | 2004 |
| Rbinv AS | | 2024 |
| Reidar Sund AS | Professional & scientific | 2005 |
| Rental Technology & Services AS | Professional & scientific | 2002 |
| Rettvest Holding AS | | 2019 |
| Rindane 8 AS | Real estate | 2020 |
| Rindane AS | Real estate | 2023 |
| Rismyhr Invest AS | Financial services | 2005 |
| Rogaland Rensefisk AS | Agriculture & fishing | 2022 |
| Rolling Blue Visions Holding AS | | 2022 |
| Rondhagen AS | Agriculture & fishing | 2019 |
| RTS Holdco AS | | 2025 |
| RTS Invest AS | | 2024 |
| Ryvingen Barnehage SA | Education | 2001 |
| Rådhusgaten 12 AS | Real estate | 2020 |
| Rådhusgaten Invest AS | Real estate | 1998 |
| Rådhusvegen 11 13 AS | Real estate | 2001 |
| Sandabue AS | Agriculture & fishing | 2017 |
| Sandhåland Invest AS | | 2022 |
| SBS Investering AS | Real estate | 2005 |
| Sea Motion Energy AS | Professional & scientific | 2005 |
| Seihammaren AS | Agriculture & fishing | 2007 |
| Seim-Holding AS | Construction | 2024 |
| Seiskjer AS | Agriculture & fishing | 2020 |
| Shoe Me Åkra AS | Wholesale & retail | 2013 |
| Sia Labie Koki | Administrative & support | 2011 |
| Sika Invest Åkrehamn AS | Professional & scientific | 2024 |
| Simonsen Bolig AS | Real estate | 2026 |
| Simonsen Eiendomsutvikling AS | Real estate | 2026 |
| Simras AS | Administrative & support | 2025 |
| Siso Invest AS | Real estate | 2005 |
| Siviløkonom Thormodsæter AS | Professional & scientific | 2005 |
| Sjøen Eiendomsutvikling AS | Real estate | 1998 |
| Sjøen Hus AS | Construction | 1980 |
| Sjøheim Eiendom AS | Real estate | 1987 |
| Sko Invest AS | | 2021 |
| Skofle AS | Real estate | 2013 |
| Skoi Trening Og Helse AS | Arts & recreation | 2010 |
| Skudenes & Aakra Sparebank | Financial services | 1876 |
| Skudetrål Holding AS | Real estate | 2005 |
| Skår AS | Agriculture & fishing | 2001 |
| Sletten Budservice AS | Transport & logistics | 2019 |
| Sletten Taxi AS | Transport & logistics | 2021 |
| Slogmåkane Eiendom AS | Real estate | 2016 |
| Smink Og Sveis AS | Wholesale & retail | 2019 |
| Smutt Holding AS | | 2026 |
| Snakk AS | Real estate | 2019 |
| Snartaberg AS | | 2025 |
| So Lund AS | Construction | 2024 |
| Solland Hytte- Og Veilag Ba | Real estate | 2005 |
| Sporten Åkra AS | Wholesale & retail | 2008 |
| ST Forvaltning AS | Other services | 2006 |
| ST Service AS | Other services | 2025 |
| Stajoh AS | Wholesale & retail | 2022 |
| Stajoh Gulv AS | Construction | 2024 |
| Stajoh Holding AS | | 2024 |
| Stall Frisk Ans | Education | 2023 |
| Steinsøy Investering AS | | 2019 |
| Stempel AS | Wholesale & retail | 2009 |
| Sten Hauge AS | Real estate | 2017 |
| Stian Tønnesen Invest AS | Financial services | 2017 |
| Stina Og Knuts Cafe Ans | | 1992 |
| Stongsvingen 134 AS | Real estate | 2021 |
| Stongsvingen 85 B AS | Real estate | 2022 |
| Stongsvingen 85 C AS | Real estate | 2017 |
| Stongsvingen AS | Real estate | 2021 |
| Stongsvingen Eiendom AS | Real estate | 2007 |
| Stongsvingen Holding AS | | 2025 |
| Storholmen Eiendom Stong AS | Real estate | 2007 |
| Studio Haarr AS | Other services | 1998 |
| Stålbyggeren AS | Manufacturing | 1997 |
| Subsea Technology & Rentals Norway AS | Professional & scientific | 2024 |
| Surf Service - Kvernenes Og Knutsen Ans | | 1989 |
| Svein Johannessen AS | Wholesale & retail | 1987 |
| Swevw Holding AS | | 2026 |
| Systemsvikt Forlag AS | Information & communication | 2025 |
| Systuen AS | Manufacturing | 2021 |
| Sølvi Invest AS | | 2012 |
| Sørbø Bolig AS | Real estate | 2014 |
| Sørheim AS | Construction | 2016 |
| Sørheim Eiendom AS | Real estate | 2022 |
| Tannlegene Fiskå Og Hallaråker AS | Health & social care | 2004 |
| Taxi Gul AS | Transport & logistics | 2025 |