| Amet Invest AS | | 2021 |
| Aske Produksjoner AS | Arts & recreation | 2023 |
| Azets Document Solutions AS | Information & communication | 2001 |
| Børgefjell Utvikling AS | Professional & scientific | 2021 |
| Børgefjellfoten AS | Hospitality | 1995 |
| Børgefjellsenteret AS | Hospitality | 1991 |
| Consultas AS | Professional & scientific | 1987 |
| Dergaveien 15 Eiendom AS | Real estate | 2017 |
| Dærga Eiendom AS | Real estate | 2021 |
| Ecit Digital AS | Wholesale & retail | 1989 |
| Ecit Digital Software AS | Information & communication | 2020 |
| Ecit Labs Employee AS | Information & communication | 2021 |
| Frøbygget AS | Real estate | 2010 |
| Gjersvik Kraft AS | Energy | 2013 |
| Gudøyvangen Grendehus Ba | Real estate | 1995 |
| Huddingsdalen Sag & Høvleri Da | Manufacturing | 1989 |
| Hudning AS | Mining & quarrying | 2005 |
| Indre Namdal Næringsforum SA | Other services | 2007 |
| Itreco Da | Administrative & support | 2001 |
| Johannessen Kompetanse AS | Health & social care | 2010 |
| Joma Gruver AS | Mining & quarrying | 2017 |
| Joma Næringspark AS | Administrative & support | 1996 |
| Kvila AS | Construction | 2022 |
| Lifjellet Eiendom AS | Real estate | 2021 |
| Limingen Mat AS | Wholesale & retail | 2023 |
| Matilda AS | Education | 2013 |
| Metal Prospecting AS | Mining & quarrying | 2007 |
| Mikkelsen Transport AS | Transport & logistics | 1997 |
| Namdal Brannvern AS | Professional & scientific | 2014 |
| Namdalslaft Entreprenør AS | Construction | 2005 |
| Nameus Ans | Arts & recreation | 2008 |
| Naturdata AS | Professional & scientific | 2000 |
| Ornæs Gård Da | Agriculture & fishing | 2015 |
| R Skaren Holding | | 2019 |
| Rustad Energi AS | Energy | 2007 |
| Røyrvik Auto - Mikkelsen Transport Ans | Wholesale & retail | 1985 |
| Røyrvik Auto AS | Wholesale & retail | 1997 |
| Røyrvik Bioenergi AS | Energy | 2023 |
| Røyrvik Gjestegård AS | Hospitality | 2012 |
| Røyrvik Grus AS | Construction | 2019 |
| Røyrvik Regnskap AS | Professional & scientific | 2020 |
| Røyrvik Scooter Og Maskin AS | Wholesale & retail | 2016 |
| Røyrvik Vekst AS | Real estate | 2014 |
| Røyrvikkalk AS | Mining & quarrying | 1993 |
| Sigurd S. Pedersen AS | Construction | 2015 |
| Skan Trading Ans | | 1989 |
| Skinnbedriften AS | Manufacturing | 2017 |
| Skånaliseter Gårdsysteri AS | Manufacturing | 1998 |
| Solberg Maskin Og Transport AS | Construction | 2020 |
| Stadionveien Eiendom AS | Real estate | 2019 |
| Sukame Eiendom AS | Real estate | 2021 |
| Svein Håpnes Holding AS | | 2019 |
| SVK Holding AS | Real estate | 2013 |
| Sørsundet Invest AS | Real estate | 2020 |
| Trollvikveien Skogsveiforening | Administrative & support | 1995 |
| Tunnsjø Maskin & Transport AS | Mining & quarrying | 1992 |
| Vaegkie AS | Administrative & support | 2013 |
| Vekterklumpen Grunneierlag SA | Real estate | 1990 |
| Winter Byggtjenester AS | Construction | 2015 |