| Sørlandets Innkjøpsring Da | Other services | 2001 |
| Sørlandets Osteopatiske Senter Da | Health & social care | 2007 |
| Sørlandets Sportsfiske Service Ans | Wholesale & retail | 1992 |
| Sørlandets Storkjøkken Service AS | Manufacturing | 2003 |
| Sørlandets Sylinderservice AS | Wholesale & retail | 1969 |
| Sørlandets Travpark AS | Arts & recreation | 1987 |
| Sørlands Transport AS | Transport & logistics | 2021 |
| Sørlands-Vekst AS | Manufacturing | 1985 |
| Sørlandsadvokatene Da | Professional & scientific | 2003 |
| Sørlandschips AS | Manufacturing | 2006 |
| Sørlandsdekk AS | Other services | 2023 |
| Sørlandsdykk AS | Construction | 2017 |
| Sørlandsforskning AS | Professional & scientific | 2005 |
| Sørlandshallen Cowork AS | Real estate | 2021 |
| Sørlandshallen Eiendom AS | Real estate | 1993 |
| Sørlandsk Eiendom AS | Real estate | 2021 |
| Sørlandskjøkken Kristiansand AS | Wholesale & retail | 2022 |
| Sørlandskjøtt AS | Manufacturing | 1998 |
| Sørlandskjøtt Eiendom AS | Real estate | 2021 |
| Sørlandskomper AS | Manufacturing | 2018 |
| Sørlandsmegleren Sædberg Og Lian AS | Real estate | 2009 |
| Sørlandsparken BHT AS | Health & social care | 2013 |
| Sørlandsparken Dinitrolsenter AS | Other services | 1979 |
| Sørlandsparken Eiendom AS | Real estate | 2024 |
| Sørlandsparken Eiendom Holding AS | Real estate | 2022 |
| Sørlandsparken Es AS | Real estate | 2010 |
| Sørlandsparken Holding AS | Real estate | 2020 |
| Sørlandsparken Hund Og Katt Senter AS | Wholesale & retail | 2006 |
| Sørlandsparken Næringsforening AS | Other services | 1996 |
| Sørlandsparken Osteopati & Fysioterapi AS | Real estate | 2011 |
| Sørlandsparken Tomteutvikling AS | Real estate | 2020 |
| Sørlandsparken Øst AS | Real estate | 2010 |
| Sørlandsparken Øst Logistikk AS | Real estate | 2010 |
| Sørlandssenteret Specsavers AS | Wholesale & retail | 2013 |
| Sørlandstak AS | Construction | 2014 |
| Sørlandstakst AS | Real estate | 2022 |
| Sørleggeren Varme Og Kjøleteknikk AS | Construction | 2026 |
| Sørleggeren VVS AS | Construction | 2020 |
| Sørli Anlegg AS | Administrative & support | 2015 |
| Sørli Gruppen AS | | 2025 |
| Sørlås AS | Other services | 2026 |
| Sørmaskin Management AS | Real estate | 1967 |
| Sørmaskin SWT AS | Wholesale & retail | 1992 |
| Sørnorsk Filmsenter AS | Information & communication | 2008 |
| Sørover AS | Health & social care | 1999 |
| Sørover Holding AS | Health & social care | 2017 |
| Sørskog AS | Agriculture & fishing | 2024 |
| Sørsvannsveien 10-14 AS | Real estate | 2002 |
| Sørutvikling AS | Real estate | 1985 |
| Sørvang Holding AS | | 2021 |
| Sørveiv AS | Arts & recreation | 2018 |
| Sørvesten AS | Real estate | 2023 |
| Sørvestkonsult AS | Professional & scientific | 2013 |
| Søvervigsveien Vann- Og Avløpslag AS | Construction | 2021 |
| Søvig Eiendom AS | Real estate | 2013 |
| Søylekilen Drift SA | Real estate | 2017 |
| Søyseth AS | Administrative & support | 1998 |
| T Berglihn AS | Wholesale & retail | 1976 |
| T Karlsen AS | Manufacturing | 2001 |
| T O Slettebøe AS | Wholesale & retail | 1966 |
| T S G No Limited Nuf | | 2006 |
| T Strømme Holding AS | Real estate | 2014 |
| T&A Holding AS | Real estate | 2014 |
| T&V Holding AS | | 2021 |
| T-K Invest AS | Manufacturing | 2010 |
| T-S Holding AS | Real estate | 2017 |
| T-Tec AS | Manufacturing | 2017 |
| T-Tec Service AS | Manufacturing | 2024 |
| T. Eek AS | Manufacturing | 2019 |
| T. I. Larsen Rørlegger AS | Construction | 2007 |
| T. Karlsen Eiendom AS | Manufacturing | 2018 |
| T.B Investment AS | | 2020 |
| T.C. Fjellvang Holding AS | | 2023 |
| T.E Og P.B AS | Professional & scientific | 2026 |
| T.O.Ljosland Invest AS | Professional & scientific | 2012 |
| T.S.G Holding AS | | 2024 |
| Ta Konsulent AS | Professional & scientific | 2025 |
| Taacon AS | Professional & scientific | 2020 |
| Tablestories AS | Wholesale & retail | 2024 |
| Taf Consulting AS | Professional & scientific | 2023 |
| Taf Eiendom AS | Real estate | 2024 |
| Tag His AS | Real estate | 2018 |
| Tag Invest AS | | 2007 |
| Tak-Service AS | Construction | 2023 |
| Takri Invest AS | Real estate | 2020 |
| Taksering Sør AS | Professional & scientific | 2026 |
| Takst Og Energidoktoren AS | Professional & scientific | 2012 |
| Takstingeniør AS | Professional & scientific | 2023 |
| Takstmann Arild Grundetjern AS | Construction | 2014 |
| Takstmann Roy a Andersen AS | Real estate | 2000 |
| Takstspesialisten AS | Professional & scientific | 2025 |
| TALKIN2 AS | Administrative & support | 2018 |
| Tambini Holding AS | Real estate | 2019 |
| Tamburin Invest AS | Financial services | 2005 |
| Tandberg Promotions AS | Professional & scientific | 2011 |
| Tandberg Transport AS | Transport & logistics | 2019 |
| Tangen Babord AS | Real estate | 2010 |
| Tangen Garveriet AS | Real estate | 2010 |
| Tangen Kristiansand AS | Real estate | 2007 |
| Tangoo AS | Administrative & support | 2002 |