| Nordmøre Kaffeinvest AS | Hospitality | 2011 |
| Norsprosser Ans | Wholesale & retail | 1992 |
| Ny Invest AS | Real estate | 2015 |
| Nye Hårstellet AS | Other services | 2022 |
| Obk Takst AS | Real estate | 2025 |
| Odds Transport AS | Real estate | 1983 |
| Oktober Holding AS | Professional & scientific | 2006 |
| Ola's Holding AS | Construction | 2018 |
| Olav Gudbrandsen AS | | 2024 |
| Olems Holding AS | | 2025 |
| Olsens Byggservice AS | Construction | 2021 |
| Oppland Brann & Sikkerhetsutstyr AS | Wholesale & retail | 2013 |
| Oppland Byggprosjektering AS | Professional & scientific | 2018 |
| Optikk Toten AS | Wholesale & retail | 2001 |
| Paulsen Elektro AS | Construction | 2017 |
| Pepa Holding AS | | 2022 |
| Pertinent AS | Hospitality | 2026 |
| Pino Restaurant AS | Hospitality | 2022 |
| Plommen Bygg AS | Real estate | 2013 |
| Pomek AS | Other services | 2014 |
| Pro Service AS | Construction | 2023 |
| Prosess Montasje AS | Manufacturing | 2012 |
| Raf AS | | 2021 |
| Rebne Holding AS | Information & communication | 2024 |
| Reforma Byggservice AS | Construction | 2020 |
| Riise Finans AS | | 2014 |
| Roar Storsletten AS | Wholesale & retail | 2016 |
| Royal Customs AS | Other services | 2025 |
| Rustad Tekst Og Teknikk AS | Professional & scientific | 2010 |
| RW Anleggsservice AS | Manufacturing | 2025 |
| RW Eiendommer AS | Real estate | 1994 |
| RW Gjenvinning AS | Construction | 2019 |
| RW Group AS | Other services | 2022 |
| Røste Regnskap AS | Professional & scientific | 2019 |
| Sameia Fellesfjøs Da | Agriculture & fishing | 2003 |
| Samfunnsparken Kapp AS | Real estate | 2017 |
| Samspell AS | Professional & scientific | 2023 |
| Sandbakken 35 Eiendom AS | Real estate | 2018 |
| Sandbæk Eiendom AS | Real estate | 1982 |
| Schjøll Og Sønn AS | Administrative & support | 2020 |
| SE Bodø AS | Real estate | 2023 |
| Seleo Invest AS | Transport & logistics | 2004 |
| Sge Invest AS | Real estate | 2012 |
| Sgholding AS | | 2024 |
| Shades of Floyd Da | Arts & recreation | 2023 |
| Sigma AS | Professional & scientific | 1998 |
| Sigrid Undsets Vei 1 AS | Real estate | 2019 |
| Silogata 20 AS | Real estate | 2021 |
| Silogata Eiendom AS | Real estate | 2003 |
| Silver Street Da | Arts & recreation | 2006 |
| Sino Gruppen AS | Manufacturing | 2014 |
| Sixsixsix AS | Manufacturing | 2016 |
| Skanol Kraby AS | Transport & logistics | 2001 |
| Skinstad Byggservice AS | Construction | 2017 |
| Skogen Eiendom AS | Real estate | 1977 |
| Skreia Eiendomsselskap AS | Real estate | 1988 |
| Slåttsveen Transport AS | Transport & logistics | 2001 |
| Smitek AS | Manufacturing | 2013 |
| Smitek Eiendom AS | Real estate | 2018 |
| Sof Eiendom AS | Real estate | 2018 |
| Solberg Security AS | | 2023 |
| Soleng Invest AS | Financial services | 2010 |
| Solhaug Service AS | Construction | 2026 |
| Solli Kapital AS | | 2025 |
| Spiskammerset Mat Og Tradisjoner AS | Hospitality | 2022 |
| Ste-Gud Holding AS | Financial services | 2005 |
| Stenbergs Landhandleri AS | Wholesale & retail | 2021 |
| Stenkon AS | Construction | 2021 |
| Styrkehuset Lena AS | Arts & recreation | 2016 |
| Sulland Eiendom AS | Real estate | 1986 |
| Sulland Mote AS | Wholesale & retail | 1993 |
| Sulland, Reinås & Co AS | Real estate | 2021 |
| Syskrinet AS | Wholesale & retail | 2003 |
| Sømo Utleie AS | Real estate | 2026 |
| Søstrene Mylius Da | Wholesale & retail | 2005 |
| T Bratberg AS | Wholesale & retail | 2005 |
| T. Foss Holding AS | Wholesale & retail | 2010 |
| Takstgruppen AS | Professional & scientific | 2010 |
| Tannlege Kjellaug Gjestrum AS | Health & social care | 2023 |
| Tannlege Nygård-Bertel AS | Health & social care | 2022 |
| Taxi, Transport & Formidling AS | Transport & logistics | 1998 |
| Teinvest AS | Financial services | 2013 |
| TF Lakkbokser AS | Wholesale & retail | 2021 |
| Thors AS | Wholesale & retail | 2015 |
| Tinni AS | | 2005 |
| Tom Staff Holding AS | Financial services | 2005 |
| Tones Bunadstue AS | Wholesale & retail | 2024 |
| Tore Haugen AS | Manufacturing | 1994 |
| Toresen Sport AS | Wholesale & retail | 1992 |
| Torill Lundvollen AS | Wholesale & retail | 2010 |
| Toten Alarm AS | Construction | 2015 |
| Toten Almenningsdrift SA | Real estate | 2013 |
| Toten Anlegg Og Servicetjenester AS | Administrative & support | 2020 |
| Toten Anlegg Og Transport AS | Construction | 1998 |
| Toten Anlegg Og Transport Eiendom AS | Real estate | 2020 |
| Toten Anlegg Og Transport Holding AS | | 2025 |
| Toten Bensin AS | Wholesale & retail | 2010 |
| Toten Bil Og Metallretur AS | Manufacturing | 2017 |
| Toten Bygg Og Montasje AS | Construction | 2017 |
| Toten Bygg Service AS | Construction | 2013 |