| Namdal Maskinsenter AS | Wholesale & retail | 2011 |
| Namdal Produsentlag AS | Manufacturing | 1979 |
| Namdal Prosjekt AS | Real estate | 2018 |
| Namdal Totalrenhold AS | Manufacturing | 2021 |
| Namsen Invest AS | Real estate | 2003 |
| Namsen Mekaniske AS | Manufacturing | 2018 |
| Namsen Salmon & Train Experience AS | Arts & recreation | 2017 |
| Namsengata 12 AS | Real estate | 2017 |
| New Relations AS | | 2013 |
| Norsk Linjeservice AS | Professional & scientific | 2019 |
| Nordli Regnskapskontor AS | Professional & scientific | 1988 |
| O. Barlien Invest AS | | 2022 |
| Okhh Eiendom AS | Real estate | 2006 |
| Overhalla Auto AS | Other services | 2024 |
| Overhalla Betongbygg AS | Manufacturing | 1996 |
| Overhalla Eiendom AS | Real estate | 2022 |
| Overhalla Frisørsalong AS | Other services | 2017 |
| Overhalla Frivilligsentral SA | Health & social care | 2000 |
| Overhalla Gruppen AS | Manufacturing | 2005 |
| Overhalla Hotel AS | Hospitality | 2022 |
| Overhalla Invest AS | Real estate | 2013 |
| Overhalla Klonavlssenter AS | Agriculture & fishing | 1991 |
| Overhalla Landbrukslag SA | Wholesale & retail | 1901 |
| Overhalla Mat AS | Wholesale & retail | 2017 |
| Overhalla Mekaniske AS | Manufacturing | 1988 |
| Overhalla Montessoriskole SA | Education | 2013 |
| Overhalla Pizzeria AS | Hospitality | 2018 |
| Overhalla Renhold AS | Administrative & support | 2019 |
| Overhalla Servicebygg AS | Real estate | 2007 |
| Overhalla Speed Auto AS | Wholesale & retail | 2026 |
| Overhalla Sport AS | Wholesale & retail | 2020 |
| Overhalla Transport AS | Transport & logistics | 1995 |
| Overhalla Varesenter SA | Wholesale & retail | 1937 |
| Overhallsvegen 2141 AS | Real estate | 2024 |
| P. Galguften AS | Real estate | 2016 |
| Per Ivar Frantzen AS | Manufacturing | 2012 |
| Pharmaq AS | Manufacturing | 2004 |
| Push Treningssenter AS | Arts & recreation | 2013 |
| Push Treningssenter Sveberg AS | Arts & recreation | 2015 |
| Ranum Blomster & Interiør AS | Wholesale & retail | 2017 |
| Ranum Drift AS | Administrative & support | 2004 |
| Ravlo AS | Administrative & support | 2025 |
| Reina Eiendom AS | Real estate | 2009 |
| Reina Samdrift Da | Agriculture & fishing | 2010 |
| Reinbakkan AS | Real estate | 2013 |
| Reitans Restaurant AS | Hospitality | 2019 |
| Rg-Driftassistanse AS | Agriculture & fishing | 2016 |
| Riibe Invest AS | | 2020 |
| Risvik Gård Sturla Og Pål Risvik Da | Agriculture & fishing | 1990 |
| Risvika Cooprative Water Supplier SA | Water & waste | 2011 |
| S.Galguften AS | Real estate | 2021 |
| Selotten Kantiner & Catering AS | Hospitality | 2001 |
| Siv. Ing. Jan Lian AS | Professional & scientific | 2012 |
| Skage-Invest AS | Real estate | 2024 |
| Skistad AS | Financial services | 2012 |
| Skistad Regnskap AS | Professional & scientific | 1997 |
| Skjørva AS | | 2013 |
| Skogmo Industripark AS | Professional & scientific | 2006 |
| Skogmo Motor & Fritid AS | Other services | 2024 |
| Skogmo Tre AS | Construction | 1989 |
| SL Hundeutstyr AS | Wholesale & retail | 2025 |
| Sletta Bil AS | Other services | 2010 |
| Sletta Mat AS | Hospitality | 2020 |
| Storli Invest AS | Health & social care | 2011 |
| Sven Vea AS | Administrative & support | 2019 |
| Sørsida Maskinring Ans | Wholesale & retail | 1989 |
| Sørsida Potet Da | Agriculture & fishing | 2008 |
| T. Barlien AS | Real estate | 2012 |
| Tannlege Aasgaard AS | Health & social care | 2023 |
| TLT Da | Agriculture & fishing | 2004 |
| Verdal Invest AS | Real estate | 2020 |
| Vesterå Skogvegforening Ba | Real estate | 1999 |
| VVV Invest AS | Real estate | 2013 |
| Øyengvegen SA | Real estate | 2025 |
| Øysletta Maskinring SA | Agriculture & fishing | 1992 |