| Lab 4 Prosjektering AS | Professional & scientific | 1991 |
| Landerudskogene Ans | Agriculture & fishing | 1974 |
| Lapasteria AS | Hospitality | 2020 |
| Lchf Akademiet AS | Health & social care | 2013 |
| Lepperød Holding AS | | 2024 |
| Lia Terapi AS | Arts & recreation | 2002 |
| Life Is Good AS | Hospitality | 2020 |
| Lillegrinden AS | Construction | 2019 |
| Lima Timmerhus Bygg AB | Construction | 1999 |
| Locus Eiendom AS | Real estate | 2007 |
| Lund Gård & Gartnertjenester AS | Administrative & support | 2017 |
| Lundsanden AS | Real estate | 1991 |
| Lutnes Ved Da | Wholesale & retail | 2020 |
| Løken VVS AS | Construction | 2018 |
| Løken VVS Holding AS | Construction | 2018 |
| Løkja AS | Hospitality | 2023 |
| Løkjavegen 12 Og 14 AS | Real estate | 2019 |
| Løvåsbakken AS | Real estate | 2014 |
| Mab AS | Real estate | 2019 |
| Maliregina Da | Education | 2015 |
| Malmlaft AS | Real estate | 1997 |
| Manngard Vakt & Sikkerhet AS | Administrative & support | 2013 |
| March AS | | 2020 |
| Marlenes Lykke AS | Wholesale & retail | 2012 |
| MHH Element AS | Real estate | 2020 |
| Midgard Trysil AS | Real estate | 2022 |
| Moelven Trysil AS | Manufacturing | 2001 |
| Mosanden Eiendom AS | Real estate | 2013 |
| Mountain Stay AS | Hospitality | 2023 |
| MP Invest Og Holding AS | | 2026 |
| Nerhagen Holding AS | | 2026 |
| Nettverksutvikling AS | Real estate | 2005 |
| Next Trysil AS | Arts & recreation | 2022 |
| Norda Mørs Eiendom AS | Real estate | 2023 |
| Nordhammer Ans | Hospitality | 2005 |
| Nordic Asset Management AS | Real estate | 2007 |
| Nordre Kjemsjøliteig Ans | Agriculture & fishing | 1974 |
| Nordvikskogen AS | Real estate | 2021 |
| Norgreen Varmepumper AS | Construction | 2015 |
| Norske Instruktører Og Guider AS | Education | 2001 |
| Nuestra Casa Da | Real estate | 2003 |
| Nybakk Anlegg AS | Construction | 2012 |
| Nye Ski Restaurantene AS | Hospitality | 2002 |
| O G Sørhuus AS | Real estate | 2006 |
| Occasio Consulting AS | Professional & scientific | 2013 |
| Ole Hallstein Holding AS | Real estate | 2005 |
| Opsis AS | Professional & scientific | 2011 |
| Orca Konsult AS | Health & social care | 2020 |
| Orwo Invest AS | Real estate | 2003 |
| Oulie Eiendom AS | Real estate | 2011 |
| Paf Holding AS | | 2026 |
| Panexe AS | Professional & scientific | 2011 |
| PC Programutvikling AS | Information & communication | 1994 |
| Pedersen Eiendomsselskap AS | Real estate | 2010 |
| Pgt-Holding AS | Financial services | 2016 |
| PLW Holding AS | Real estate | 2020 |
| Proglass AS | Construction | 2015 |
| Prostmyra Eiendom AS | Construction | 2021 |
| PW Gruppen AS | Real estate | 2020 |
| Regnebua AS | Professional & scientific | 1983 |
| Restaurant Laaven 1790 AS | Hospitality | 2016 |
| Restauranthuset Fageråsen AS | Hospitality | 2019 |
| Revisorsenteret Trysil Da | Professional & scientific | 2010 |
| RF Gruppen AS | Wholesale & retail | 2010 |
| Rolf Mobæk AS | Hospitality | 1998 |
| Rosvet Nord AS | Construction | 2013 |
| Rått AS | Arts & recreation | 2015 |
| Røbukompaniet Ans | Agriculture & fishing | 1995 |
| Salong Saxen AS | Other services | 2001 |
| Sams Café AS | Hospitality | 2010 |
| Sams Solarium AS | Arts & recreation | 2020 |
| Sanakerkompaniet Drift Ans | Real estate | 2014 |
| Scandicosta AS | | 2021 |
| Senter for Riktig Ernæring AS | Education | 2009 |
| Shefked AS | Professional & scientific | 2020 |
| Shjm Holding AS | Hospitality | 2023 |
| Sim Holding AS | Real estate | 2017 |
| Sjumilskogen AS | Hospitality | 1991 |
| Skei Eiendom AS | Manufacturing | 1991 |
| Skihytta Trysil AS | Hospitality | 2004 |
| Skipuben AS | Hospitality | 2013 |
| Skistar Norge AS | Arts & recreation | 1996 |
| Skitorget Apartments AS | Real estate | 2018 |
| Skitorget AS | Real estate | 2009 |
| Skitorget Invest AS | Real estate | 2019 |
| Skjefstad AS | Construction | 1988 |
| Skøld Holding AS | Financial services | 2005 |
| Sletten AS | Real estate | 1956 |
| Slettmovegen 30 AS | Real estate | 2016 |
| Smellen AS | Arts & recreation | 2026 |
| Smijernsbua AS | Wholesale & retail | 2019 |
| Snoff AS | Professional & scientific | 2024 |
| SNT Holding AS | Information & communication | 2023 |
| Sny AS | Financial services | 2017 |
| Sny Grafisk AS | Professional & scientific | 2023 |
| Snygarden AS | Real estate | 2021 |
| Solbjørnlia Ans | Real estate | 1996 |
| Solfnugg AS | Administrative & support | 2022 |
| Solid Veiledning AS | Education | 2019 |
| Solsætra AS | Real estate | 2018 |