| Rigg & Logistikk AS | Construction | 2015 |
| Riggmo AS | Administrative & support | 2019 |
| Riksvold AS | Construction | 2006 |
| Riksvold Holding AS | Real estate | 2012 |
| Rindsem Holding AS | Professional & scientific | 2007 |
| RINDSEMVEG1 Eiendom AS | Real estate | 2016 |
| Risan Grus Og Transport AS | Transport & logistics | 2002 |
| Risvik Invest AS | | 2025 |
| Roar Olsen Holding AS | Real estate | 2022 |
| Romas Eiendom AS | Real estate | 2004 |
| Ronny Berg AS | Transport & logistics | 2021 |
| Rosenvinge Holding AS | | 2024 |
| Rosenvinge Taxi AS | Transport & logistics | 2025 |
| Rossi AS | Financial services | 2015 |
| Rostad/Bjordal Da | Manufacturing | 2014 |
| Rostu Bolig AS | Real estate | 2013 |
| Rosvoll Eiendom SA | Real estate | 2005 |
| Rosvoll Nordre Da | Agriculture & fishing | 2025 |
| Rotmo Transport Ans | Transport & logistics | 1990 |
| RS Byggdrift AS | Construction | 2025 |
| RS Lager AS | Real estate | 2025 |
| Rumin Invest AS | Administrative & support | 2010 |
| Runas Markiser AS | Wholesale & retail | 2008 |
| Rune Flyum AS | | 2021 |
| Russervegen 3 AS | Real estate | 2018 |
| Russervegen 5 AS | Real estate | 2014 |
| Russervegen 6 AS | Real estate | 2023 |
| Russervegen 7 AS | Real estate | 2026 |
| Russervegen 911 AS | Real estate | 2024 |
| Røberg Holding AS | | 2026 |
| Rør & Håndverk AS | Construction | 2026 |
| Røra Eiendom AS | Real estate | 2007 |
| Rørlegger'N Verdal AS | Construction | 2024 |
| Rørlegger'N Verdal Holding AS | Construction | 2024 |
| Rørleggermester Ekseth AS | Construction | 2018 |
| Rørleggermester Holan AS | Construction | 2021 |
| Rørx AS | Construction | 2026 |
| Røst Invest AS | Real estate | 2006 |
| Røstad Biovarme AS | Energy | 2017 |
| Røstad Entreprenør AS | Construction | 1991 |
| Røthe Musikkteater AS | Arts & recreation | 2019 |
| Røysen Holding AS | | 2024 |
| S-L Utleie Da | Administrative & support | 2010 |
| S.E.B Invest AS | | 2024 |
| S.J. Holding AS | | 2021 |
| Sakshaugen AS | Real estate | 2020 |
| Salong Michel AS | Other services | 1989 |
| Sandvika Eiendomsselskap AS | Real estate | 1987 |
| Sandvika Hytteutvikling AS | Real estate | 2012 |
| Sandvika Vasslag SA | Water & waste | 2001 |
| Sanera AS | Construction | 2019 |
| Sarens NV Nuf | Transport & logistics | 1995 |
| Sarisan Holding AS | Construction | 2014 |
| Scandic Shine AS | Wholesale & retail | 2017 |
| Scene Midt AS | Arts & recreation | 2012 |
| Schjei Holding AS | Manufacturing | 2012 |
| Schjølberg Eiendom AS | Real estate | 2023 |
| Schjølberg Medier & Consult AS | Professional & scientific | 2024 |
| Scuti AS | Administrative & support | 2015 |
| SD Bjørgvik Invest AS | | 2024 |
| SDB Invest AS | Real estate | 2020 |
| Seascan AS | Professional & scientific | 2018 |
| SEC1 AS | Administrative & support | 2024 |
| Seggen Enterprises AS | Real estate | 2015 |
| Sel-Com Holding AS | Financial services | 2017 |
| Sellæg Holding AS | Construction | 2005 |
| Selvig Invest AS | | 2023 |
| Sem Gård Samdrift Da | Real estate | 2021 |
| Sende Busstrafikk AS | Transport & logistics | 2026 |
| Sende Holding AS | Wholesale & retail | 2005 |
| Sensor Innovation AS | Professional & scientific | 2018 |
| Sentrum Hjerteklinikk AS | Health & social care | 2026 |
| SGB Eiendom AS | Real estate | 2024 |
| SGB Holding AS | Construction | 2002 |
| Sha Holding AS | Wholesale & retail | 2008 |
| SHL Bygg AS | Construction | 2018 |
| Siam Takeaway AS | Hospitality | 2013 |
| Sicilana Ans | Hospitality | 1996 |
| Siciliana AS | Hospitality | 2002 |
| Siciliana Restaurant AS | Hospitality | 2013 |
| Sikkerhet & Service Verdal AS | Construction | 1993 |
| Sikkerhetsrådgiver Eriksen AS | Education | 2021 |
| Singstad Vaktmestertjeneste AS | Administrative & support | 2013 |
| Sira-Eiendom AS | Real estate | 2008 |
| Sivilingeniør Forsberg AS | Professional & scientific | 2019 |
| Sjøbygda Samdrift Da | Agriculture & fishing | 2001 |
| Sjøfartsgata 5B AS | Real estate | 2012 |
| Sjøvold Invest AS | | 2020 |
| Skallstuggu Fjellstue AS | Hospitality | 2017 |
| Skive Invest AS | Financial services | 2005 |
| Skjetthulet Fellesbeite SA | Agriculture & fishing | 1974 |
| Skogseth Eiendom AS | Construction | 2005 |
| Skogvoll Transport AS | Administrative & support | 2020 |
| Skrove Transport AS | Transport & logistics | 1998 |
| Skrove/Hjelde Grunneierlag SA | Real estate | 2017 |
| Slatlem Verdal AS | Wholesale & retail | 1984 |
| SLG Investments AS | | 2023 |
| Snekkeriet Eiendom AS | Real estate | 2001 |
| Snekkeriet Verdal AS | Construction | 2007 |
| SNX Granåsen AS | Education | 2025 |