| Prestefjellet Terrasse AS | Real estate | 2016 |
| Probuild Team AS | Construction | 2021 |
| Prodata AS | Wholesale & retail | 1992 |
| Prodata Cloud AS | Information & communication | 2012 |
| Prodata Design AS | Professional & scientific | 2012 |
| Prodata Office AS | Information & communication | 2013 |
| Prodata Travel AS | Information & communication | 2012 |
| Project Nothingness AS | Real estate | 2018 |
| Protakst Kirkenes AS | Professional & scientific | 2022 |
| PUB1 Kirkenes AS | Hospitality | 2025 |
| Pumpehuset AS | Real estate | 2005 |
| Punsvik Holding AS | Manufacturing | 2022 |
| Quick Cafe AS | Hospitality | 2019 |
| Real Anlegg AS | Construction | 2024 |
| Rein Film Finnmark AS | Information & communication | 2017 |
| Rein Film Produksjon AS | Information & communication | 2020 |
| Ri Invest AS | Financial services | 2005 |
| Ribago AS | Wholesale & retail | 1994 |
| Ribago Eiendom AS | Real estate | 2016 |
| Ribago Ritz AS | Hospitality | 2016 |
| Roadscanners Norway AS | Professional & scientific | 2013 |
| RVC AS | Professional & scientific | 2022 |
| Rørvikvannet Eiendom AS | Real estate | 2022 |
| Røtvold AS | Real estate | 2008 |
| Saaw Thaimassasje AS | Health & social care | 2025 |
| Salong 16 AS | Other services | 2006 |
| Samfundshuset SA | Real estate | 1956 |
| Samovarteateret AS | Arts & recreation | 1995 |
| Scanvest AS | Real estate | 2019 |
| Scanvulk AS | Wholesale & retail | 1994 |
| See Invest AS | Real estate | 2021 |
| Selfors Installasjon AS | Construction | 2002 |
| Sentrum Drift AS | Hospitality | 2023 |
| Sentrum Fysioterapi & Helse AS | Health & social care | 2024 |
| Setter Invest AS | Real estate | 2004 |
| Shang Hai Restaurant AS | Hospitality | 2003 |
| Si Consult AS | Information & communication | 2012 |
| Signora AS | Wholesale & retail | 2007 |
| Sira Eiendom AS | Real estate | 1991 |
| Siw Hege Mortensen AS | Professional & scientific | 2016 |
| SK Management AS | Wholesale & retail | 2021 |
| SM Training AS | Education | 2015 |
| Snappy AS | Information & communication | 2022 |
| Sokat AS | Real estate | 2024 |
| Sokat Invest AS | Other services | 2024 |
| Solhaug Maritim AS | Professional & scientific | 2022 |
| Sollia Gjestegård Holding AS | | 2017 |
| Soot Transport Og Maskin AS | Transport & logistics | 2012 |
| SP Bygg Og Betong AS | Construction | 2024 |
| Sportshjørne AS | Wholesale & retail | 2001 |
| Square Wave AS | Information & communication | 2024 |
| Stac AS | Wholesale & retail | 1998 |
| Stall Hundremeterskogen AS | Agriculture & fishing | 2016 |
| Stallo AS | Information & communication | 2025 |
| Stein Holding AS | Education | 2005 |
| Storgata 5 AS | Real estate | 2002 |
| Sundquist Invest AS | | 2025 |
| Surf & Turf Eiendom AS | Real estate | 2020 |
| Surf & Turf Kirkenes AS | Hospitality | 2020 |
| Svein Karisari AS | Manufacturing | 2011 |
| Sydvaranger Drift AS | Mining & quarrying | 2016 |
| Sydvaranger Eiendom AS | Mining & quarrying | 2016 |
| Sydvaranger Malmtransport AS | Transport & logistics | 2012 |
| Sydvaranger Mining AS | Mining & quarrying | 2020 |
| Sør Varanger Kommunikasjon AS | Wholesale & retail | 2007 |
| Sør-Varanger Avis A/S | Information & communication | 1949 |
| Sør-Varanger Bedriftshelsetjeneste SA | Health & social care | 1988 |
| Sør-Varanger Eiendom AS | Real estate | 2002 |
| Sør-Varanger Invest AS | | 1985 |
| Sør-Varanger Utvikling AS | Professional & scientific | 2016 |
| T Seyffarth Eftf AS | Construction | 1994 |
| T Taxi AS | Transport & logistics | 2019 |
| T. Høiland Eiendom AS | Real estate | 2024 |
| T. Høiland Holding AS | Professional & scientific | 2024 |
| Taltalon AS | Hospitality | 2025 |
| Tana Thermo AS | Transport & logistics | 2018 |
| Tannlege Floer AS | Health & social care | 2004 |
| Tannlege Maren Daldorff AS | Health & social care | 2026 |
| Tannlege R. Daldorff AS | Health & social care | 2026 |
| Tarka Zamojcin AS | Health & social care | 2021 |
| TCB Marine AS | Professional & scientific | 2012 |
| Tcit Europe AS | Wholesale & retail | 2023 |
| Tege Holding AS | Real estate | 2005 |
| Teinefangst AS | Agriculture & fishing | 2021 |
| Tero AS | Real estate | 1986 |
| TH Transport AS | Transport & logistics | 2025 |
| Thaiaroy AS | Hospitality | 2011 |
| The Independent Barentsobserver AS | Information & communication | 2015 |
| Thomas H. Osbakk Fysioterapi AS | Health & social care | 2017 |
| Tippveien 1 AS | Real estate | 2023 |
| TJJ Eiendom AS | Real estate | 2012 |
| Toklebakken AS | Real estate | 2017 |
| Trafikkskolen Ole AS | Education | 2012 |
| Trebrødre AS | Real estate | 2018 |
| Troika Seafood AS | Wholesale & retail | 2002 |
| Tschudi Aggregates AS | Mining & quarrying | 2009 |
| Tschudi Bulk Terminals AS | Transport & logistics | 2009 |
| Tschudi Kirkenes AS | Real estate | 2005 |
| Tschudi Kirkenes Eiendom AS | Real estate | 2006 |
| Tschudi Northern Logistics AS | Transport & logistics | 2009 |