| M. Øen Holding AS | | 2017 |
| Magasinet På Geilo AS | Real estate | 2013 |
| Makas AS | Wholesale & retail | 2025 |
| Malermester Kjell Rygg AS | Construction | 2003 |
| Marina Wedenberg AS | Education | 2008 |
| Matkrok`N Delikatesse & Catering AS | Wholesale & retail | 2002 |
| Maxsat AS | Wholesale & retail | 2011 |
| Mehanken AS | Construction | 2018 |
| Mersteen Invest AS | | 2026 |
| Montebello Invest AS | Real estate | 1985 |
| MR Entreprenør AS | Construction | 2022 |
| MR Holding AS | Real estate | 2022 |
| Munnviken AS | Health & social care | 2013 |
| Murmester Lid AS | Construction | 2010 |
| Nedre Lienvegen 14 AS | Real estate | 2023 |
| Nilsenuten AS | Real estate | 2001 |
| Nordlys Moments AS | Wholesale & retail | 2026 |
| Nordre Ødegård Eiendom AS | Real estate | 2012 |
| Norges Toppidrettsgymnas Geilo AS | Education | 2006 |
| Norvegicum Invest AS | Professional & scientific | 2005 |
| Norvégienne AS | Professional & scientific | 2008 |
| Norway Home of Skiing AS | Administrative & support | 2019 |
| Nye Havsdalsvegen 25 AS | Real estate | 2020 |
| Nye Havsdalsvegen 47 AS | Real estate | 2015 |
| Næsselqvist Eiendom AS | Real estate | 2004 |
| Oaø Invest AS | Real estate | 2020 |
| Ogner Holding AS | | 2005 |
| Omattgjort AS | Hospitality | 2020 |
| Omen Holding AS | | 2008 |
| Optiker Tore Schømer & Co Ans | Wholesale & retail | 1991 |
| Ostebygda SA | Manufacturing | 2019 |
| Ove Øen Holding AS | Real estate | 2008 |
| Pedicel AS | Information & communication | 1986 |
| Perleporten Geilo AS | Hospitality | 2016 |
| Pfa Elektro AS | Construction | 2012 |
| Pillop AS | Manufacturing | 2013 |
| Proaktiv Invest AS | Financial services | 2005 |
| Reiduns Regnskapsservice AS | Professional & scientific | 2013 |
| Ro Kro AS | Hospitality | 2025 |
| Roes AS | Professional & scientific | 2007 |
| Rønsgård Eiendom AS | | 2000 |
| Røven Holding AS | | 2023 |
| Samsara Geilo AS | Wholesale & retail | 2013 |
| Sandal AS | Real estate | 2018 |
| SC Norway AS | Construction | 2024 |
| SD Maskin AS | Construction | 2021 |
| Seim Family AS | Health & social care | 2016 |
| Senter for HR & HMS Ledelse AS | Health & social care | 2017 |
| Serious Fun AS | Arts & recreation | 2005 |
| Sesongstart Geilo AS | Administrative & support | 2026 |
| Shod Holding AS | | 2021 |
| Siris Holding AS | | 2023 |
| Sjoklædagerdin HF | Wholesale & retail | 2003 |
| Sjåstad Maskin AS | Construction | 2007 |
| Sjåstad Motor Og Eiendom AS | Real estate | 2013 |
| Skarvet Eiendom AS | Real estate | 2002 |
| Skarvet Sport Holding AS | Wholesale & retail | 2008 |
| Skaugum Bestikkfabrikk AS | Manufacturing | 2011 |
| Ski I Sentrum AS | Real estate | 2019 |
| Ski I Sentrum N1 AS | Real estate | 2019 |
| Ski I Sentrum N2 AS | Real estate | 2019 |
| Ski I Sentrum N3 AS | Real estate | 2019 |
| Skigeilo AS | Arts & recreation | 2012 |
| Skigeilo Hospitality AS | Professional & scientific | 2018 |
| Skigeilo Utvikling AS | Real estate | 2021 |
| Skogheim Invest AS | Real estate | 1986 |
| Skue Sparebank | Financial services | 1842 |
| Skurdalen Grunneigarlag SA | Real estate | 1976 |
| Skurdalsstølan Va I SA | Water & waste | 2020 |
| Skurdalsstølan Va II SA | Water & waste | 2020 |
| Skurdalsstølan Va III SA | Water & waste | 2020 |
| Skurdalsvegen 80 Eiendom AS | Real estate | 2002 |
| Slaatta Skisenter AS | Arts & recreation | 1985 |
| Slaatta Skiutleie AS | Administrative & support | 2005 |
| Slaatta Utvikling AS | Real estate | 2005 |
| Slaatto Eiendom AS | Real estate | 2007 |
| Smakeriet Geilo AS | Hospitality | 2021 |
| Smiu AS | Real estate | 2012 |
| Snekre AS | Construction | 2026 |
| Snøfjell AS | Real estate | 2009 |
| Snøgg Fiber AS | Information & communication | 2020 |
| Solbakken AS | Real estate | 1964 |
| Solsiden Geilo AS | Real estate | 2020 |
| Soulride AS | Wholesale & retail | 2023 |
| Spinnut AS | Real estate | 2021 |
| Sport 1 Geilo AS | Wholesale & retail | 1979 |
| Stavisetten AS | Real estate | 2006 |
| Stell Invest AS | Real estate | 2022 |
| Stell Invest Eiendom AS | Real estate | 2022 |
| Stiteknikk AS | Professional & scientific | 2020 |
| Stølsvegen 36 AS | Real estate | 2026 |
| Stølsvegen 53 AS | Wholesale & retail | 2005 |
| Sveingård Eiendom AS | Real estate | 1998 |
| Sveinsrud AS | Real estate | 2018 |
| Sverre Tragethon AS | | 2018 |
| Søre Gjeilo Invest AS | Financial services | 2005 |
| Sørhallene AS | Real estate | 2017 |
| Sørhallie AS | Real estate | 2017 |
| Søstrene Øyo AS | Manufacturing | 2023 |
| Tangeviken AS | Real estate | 2020 |