| Pilebyg Nuf | Construction | 2008 |
| R.B.S AS | Construction | 2021 |
| R.B.V. AS | Construction | 2019 |
| Radio Vest Telemark AS | Information & communication | 1991 |
| Rauland Adventure AS | Administrative & support | 2024 |
| Rauland Betong Og Driftsservice AS | Construction | 1996 |
| Rauland Byggtjeneste AS | Construction | 2013 |
| Rauland Eiendom AS | Real estate | 2003 |
| Rauland Elektriske AS | Construction | 2012 |
| Rauland Elektriske Eigendom AS | Real estate | 2012 |
| Rauland Elektriske Holding AS | Real estate | 2012 |
| Rauland Elektriske Utleige AS | Real estate | 2012 |
| Rauland Energi AS | Construction | 2013 |
| Rauland Entreprenør AS | Construction | 2023 |
| Rauland Familiepark AS | | 2025 |
| Rauland Fiber AS | Information & communication | 2020 |
| Rauland Fjellferie AS | Real estate | 1998 |
| Rauland Fjellhotell Drift AS | Hospitality | 2025 |
| Rauland Fjellservice AS | Administrative & support | 2026 |
| Rauland Fjellsport AS | Wholesale & retail | 2004 |
| Rauland Handelshus AS | Real estate | 1992 |
| Rauland Holding AS | Professional & scientific | 2012 |
| Rauland Hyttebygg AS | Real estate | 2015 |
| Rauland Jernvare AS | Wholesale & retail | 2012 |
| Rauland Kraftforsyningslag SA | Energy | 1940 |
| Rauland Laft AS | Construction | 2009 |
| Rauland Maskin AS | Construction | 2005 |
| Rauland Maskin Utvikling AS | Real estate | 2024 |
| Rauland Montering Og Mek AS | Manufacturing | 2020 |
| Rauland Rør AS | Construction | 2019 |
| Rauland Servicenter AS | Wholesale & retail | 2001 |
| Rauland Skisenter AS | Hospitality | 1997 |
| Rauland Skiskole Ans | Arts & recreation | 1992 |
| Rauland Tannlegesenter AS | Health & social care | 2023 |
| Rauland Topptur AS | Wholesale & retail | 2023 |
| Rauland Transport Og Sandtak AS | Construction | 2012 |
| Rauland Trelast AS | Wholesale & retail | 2022 |
| Rauland Turist AS | Administrative & support | 1994 |
| Rauland Utvikling Ans | Real estate | 2000 |
| Rauland Vaktservice AS | Administrative & support | 2013 |
| Rauland Varesenter AS | Wholesale & retail | 2006 |
| Raulandsakademiet AS Norsk Senter for Folkekultur | Education | 1987 |
| Raulandsfjell Eiendom AS | Real estate | 2023 |
| Raulandstoga AS | Hospitality | 1995 |
| Real Bygg AS | Real estate | 1992 |
| Rehabiliteringssenteret Air AS | Health & social care | 1987 |
| Reinsviki Holding AS | | 2021 |
| Ridesenteret I Rauland AS | Arts & recreation | 2009 |
| Ringhus Skifer-Mur Og Flis AS | Construction | 2015 |
| RK Nett AS | Energy | 2020 |
| RN Eigedom AS | Real estate | 2016 |
| Rørlegger Svein Dagalid AS | Construction | 2012 |
| Salong Vibeto AS | Other services | 2026 |
| SD Hus AS | Construction | 2023 |
| Setali Eigedom AS | Real estate | 2025 |
| Setali Invest AS | Real estate | 2021 |
| Shi Holding AS | Real estate | 2021 |
| Skarsnuten Holding AS | | 2025 |
| Skarstjønn AS | Administrative & support | 2020 |
| Skinnarland Eigedom AS | Real estate | 2018 |
| Skinnarland Service Og Utleie AS | Real estate | 2023 |
| Smia AS | Health & social care | 1990 |
| Snøscooterservice AS | Wholesale & retail | 2010 |
| SRS Rauland AS | Real estate | 2004 |
| STJ Invest AS | Real estate | 2018 |
| Stolt Ressurs AS | Professional & scientific | 2013 |
| Svalastog Holding AS | Real estate | 2005 |
| Svinefjell Beitelag Ba | Other services | 1974 |
| Særen Holding AS | Real estate | 2012 |
| T T R Utvikling AS | Construction | 2020 |
| T-Tr AS | Construction | 2020 |
| Telemark Husky Tour AS | Administrative & support | 2019 |
| Telemark Miljøbygg AS | Construction | 2017 |
| Telemarkhelten AS | Arts & recreation | 2010 |
| Tiur Eigedom AS | Real estate | 2023 |
| Tjønnestaul Holding AS | Real estate | 2015 |
| Totak AS | Transport & logistics | 1995 |
| Totak Eigendom AS | Real estate | 2019 |
| Tuftin AS | Transport & logistics | 2004 |
| Tømrer Håvard Lien AS | Construction | 2017 |
| Tømrer Jon Håkon Hove AS | Construction | 2016 |
| Vaa Tradisjonshus AS | Construction | 2018 |
| Valberggrenda 11 AS | Construction | 2021 |
| Vegheim AS | Real estate | 2021 |
| Vest-Telemark Våpen Og Villmark AS | Wholesale & retail | 2022 |
| Vestlia Drift AS | Construction | 2017 |
| Vierli Eigedom AS | Real estate | 2006 |
| Vierli Utvikling AS | Real estate | 2021 |
| Vinje Bil AS | Wholesale & retail | 2023 |
| Vinje Bygg AS | Wholesale & retail | 2015 |
| Vinje Fjellflora AS | Wholesale & retail | 2007 |
| Vinje Maskin AS | Construction | 2016 |
| Vinje Medieteknikk Ans | Information & communication | 2002 |
| Xenon Shipping AS | Transport & logistics | 1985 |
| ZRN Testing Systems AS | Wholesale & retail | 2013 |
| Åmot Eigendom AS | Real estate | 2014 |
| Øko Grønt AS | Professional & scientific | 1998 |