| Solør Blikkenslagerverksted AS | Construction | 2021 |
| Solør Dekk Da | Other services | 1988 |
| Solør Dyreklinikk AS | Professional & scientific | 2013 |
| Solør Elektro AS | Construction | 2004 |
| Solør Glass & Rammer AS | Construction | 2011 |
| Solør Hus AS | Construction | 2020 |
| Solør Hus Eiendom AS | Real estate | 2022 |
| Solør Hus Holding AS | Construction | 2020 |
| Solør Hus Utvikling AS | Real estate | 2022 |
| Solør Industriservice AS | Manufacturing | 1989 |
| Solør Interiør AS | Wholesale & retail | 2001 |
| Solør Kompetanse AS | Professional & scientific | 2022 |
| Solør Mekaniske Verksted AS | Manufacturing | 2010 |
| Solør Miljø Kraft AS | Energy | 2009 |
| Solør Naprapati AS | Health & social care | 2018 |
| Solør Potetpakkeri AS | Administrative & support | 2016 |
| Solør Rørservice AS | Construction | 2012 |
| Solør Skaft AS | Wholesale & retail | 2002 |
| Solør Tunet Ans | Health & social care | 2007 |
| Solør Økonomi AS | Professional & scientific | 1987 |
| Solør-Odalsvegen SA | Real estate | 1989 |
| Srs-Eiendom AS | Real estate | 2014 |
| Studio RV 20 Da | Education | 2006 |
| Sundmoen Autoverksted AS | Other services | 2002 |
| Sylvestris AS | Manufacturing | 1998 |
| Sæta Maskin AS | Construction | 2020 |
| Sønsterud Eiendom AS | Real estate | 1989 |
| Sørsåsvegene SA | Real estate | 2000 |
| Thor Engineering AS | Professional & scientific | 2014 |
| Top Takeoff Plateselskap Da | Information & communication | 2009 |
| Tore Isaksætre Transport AS | | 1984 |
| Trysil Skogsdrift AS | Agriculture & fishing | 2024 |
| TT Bygg & Vedlikehold AS | Construction | 2022 |
| TT Kabel & Anlegg AS | Construction | 2010 |
| Tømmer Og Luksus Ans | Professional & scientific | 2026 |
| Urdahl Maskin AS | Construction | 2021 |
| Urmaker Simensen AS | Wholesale & retail | 2012 |
| Ventilasjon Bygg & Montasje AS | Construction | 2012 |
| Victoria Eiendom Flisa AS | Real estate | 2005 |
| Victus Trening Og Helse AS | Arts & recreation | 2022 |
| Visit Finnskogen AS | Administrative & support | 2025 |
| Visumkontoret AS | Administrative & support | 2024 |
| Watchman Ans | Wholesale & retail | 1999 |
| Webx AS | Information & communication | 2024 |
| Wendlacath AS | Professional & scientific | 2020 |
| Åsnes Bygg AS | Construction | 2015 |
| Åsnes Nordre Driftsplanområde SA | Real estate | 1996 |
| Øvre Tyskeberget Skogsbilveger SA | Construction | 2014 |