| Calido Oy | Vantaa | 2011 |
| Calidris Oy | Espoo | 1998 |
| Calisota Oy | Helsinki | 2011 |
| Calmbay Capital Oy | Tampere | 2024 |
| Calva Capital Oy | Turku | 2018 |
| CamTele Oy | Helsinki | 2004 |
| Camarillos Oy | Talma | 2022 |
| Camcut Group Oy | Toivala | 2025 |
| Camemoro Holding Oy | Helsinki | 2014 |
| Camesa Oy | Helsinki | 2020 |
| Camios Oy | Espoo | 2021 |
| Camitoni Oy | Tampere | 1993 |
| Camp Vermgin Oy | Laukkoski | 2025 |
| Campetta Invest Oy | Tuusula | 2021 |
| Campomanes Capital Oy | Helsinki | 2026 |
| Camtronic Invest Oy | Ylivieska | 2023 |
| Canatu Oyj | Vantaa | 2021 |
| Candy Capital Oy | Helsinki | 2012 |
| Canelco Invest Oy | Kuopio | 2016 |
| Canelco Management Oy | Kuopio | 2008 |
| Canelco Oy | Kuopio | 2021 |
| Caneli Invest Oy | Espoo | 2022 |
| Canephora Capital Oy | Helsinki | 2024 |
| Cankaco Invest Oy | Helsinki | 2023 |
| Canmore Oy | Kangasala | 1990 |
| Canneli Holding Oy | Helsinki | 2021 |
| Canneto Invest Oy Ab | Kauniainen | 2020 |
| Cannon Hill Holding Oy | Kouvola | 2005 |
| Canongate Capital Oy | Helsinki | 2006 |
| Canopy Finland Oy | Oulu | 2024 |
| Cantarelli Capital Oy | Helsinki | 2025 |
| Cantell Oy | Espoo | 1988 |
| Caof Oy | Vaasa | 2013 |
| Cap One Oy Ab | Espoo | 2012 |
| Cap TMT Oy | Uusikaupunki | 2023 |
| Cap Toni Oy | Vantaa | 2015 |
| CapBoy Oy | Helsinki | 2016 |
| CapBro Oy | Helsinki | 2019 |
| CapCai Oy | Söderkulla | 2015 |
| CapHan Oy | Naantali | 2024 |
| CapHolder Oy | Kuopio | 2019 |
| CapMan AIFM Oy | Helsinki | 2018 |
| CapMan Buyout Management Oy | Helsinki | 2019 |
| CapMan Buyout X Fund B Ky | Helsinki | 2013 |
| CapMan Buyout X GP Oy | Helsinki | 2013 |
| CapMan Capital Management Oy | Helsinki | 1989 |
| CapMan Classic GP Oy | Helsinki | 2004 |
| CapMan Endowment Buyout X Ky | Helsinki | 2013 |
| CapMan Endowment Buyout XI Ky | Helsinki | 2019 |
| CapMan Endowment GP Oy | Helsinki | 2013 |
| CapMan Endowment Hotels II Ky | Helsinki | 2020 |
| CapMan Endowment Nordic Infrastructure I Ky | Helsinki | 2018 |
| CapMan Endowment Nordic Real Estate II Ky | Helsinki | 2017 |
| CapMan Endowment Nordic Real Estate Ky | Helsinki | 2013 |
| CapMan Endowment Special Situations I Ky | Helsinki | 2020 |
| CapMan Growth Equity 2017 GP Oy | Helsinki | 2017 |
| CapMan Growth Equity Fund 2017 Ky | Helsinki | 2017 |
| CapMan Growth Equity Fund II Ky | Helsinki | 2020 |
| CapMan Growth Equity Fund III Ky | Helsinki | 2023 |
| CapMan Growth Equity II GP Oy | Helsinki | 2020 |
| CapMan Growth Equity III GP Oy | Helsinki | 2023 |
| CapMan Growth Equity Oy | Helsinki | 2007 |
| CapMan Growth Management Oy | Helsinki | 2023 |
| CapMan Hotels II Holding GP Oy | Helsinki | 2019 |
| CapMan Hotels II Holding Ky | Helsinki | 2019 |
| CapMan Hotels RE GP Oy | Helsinki | 2007 |
| CapMan Infra Lynx GP Oy | Helsinki | 2018 |
| CapMan Infra Lynx Ky | Helsinki | 2018 |
| CapMan Infra Management Oy | Helsinki | 2017 |
| CapMan Nordic Real Estate IV Co-Investment GP Oy | Helsinki | 2026 |
| CapMan Oyj | Helsinki | 1993 |
| CapMan Private Access IV Buyout Ky | Helsinki | 2008 |
| CapMan Private Buyout VIII Ky | Helsinki | 2005 |
| CapMan Private Rahasto II Ky | Helsinki | 2002 |
| CapMan RE II GP Oy | Helsinki | 2006 |
| CapMan Special Situations GP Oy | Helsinki | 2019 |
| CapMan Special Situations I Ky | Helsinki | 2020 |
| CapMan Special Situations II GP Oy | Helsinki | 2025 |
| CapMan Special Situations II Ky | Helsinki | 2025 |
| CapMan Special Situations Oy | Helsinki | 2020 |
| CapMan Wealth Oy | Helsinki | 2012 |
| CapVire Oy | Seinäjoki | 2026 |
| Capaja Oy | Lapua | 2019 |
| Capaneus Oy | Espoo | 2024 |
| Caparex Oy | Espoo | 1994 |
| Capcent Oy | Kirkkonummi | 2019 |
| Cape Aia Investment Oy | Tampere | 2021 |
| Cape Aspen Oy | Kaarina | 2024 |
| Cape Capital Oy | Helsinki | 2021 |
| Cape Family Oy | Kouvola | 2022 |
| Cape Holding Oy | Helsinki | 2022 |
| Cape House Invest Oy | Valkeakoski | 2021 |
| Cape Investment Oy | Espoo | 2009 |
| Cape Pine Capital Oy | Siilinjärvi | 2023 |
| Capeku Oy | Helsinki | 2009 |
| Capella Invest Oy | Oulunsalo | 2021 |
| Capercaillie Consulting Oy | Vantaa | 2019 |
| Caperlacus Oy | Kuopio | 2008 |
| Capewoods Oy | Espoo | 2018 |
| Capfi Oy | Helsinki | 2021 |