| Kehokuiskaaja Oy | Education | 2012 |
| Kehon ja mielen voima Oy | Health & social care | 2018 |
| Kehvola Design Oy | Professional & scientific | 2019 |
| Kehys Consulting Oy | Real estate | 2020 |
| Kehys Holding Oy | Financial services | 2021 |
| Kehä 4 Oy | Professional & scientific | 2008 |
| Kehä-Putki Oy | Construction | 2015 |
| KehäHuolto Oy | Administrative & support | 2026 |
| Kehäkaluste Oy | Manufacturing | 2015 |
| Kehän Auto Center Oy | Other services | 2025 |
| Kehärengas Oy | Wholesale & retail | 2010 |
| Kehätaksi Oy | Transport & logistics | 2019 |
| Kehätieto Oy | Information & communication | 1996 |
| Keicca Oy | Information & communication | 2025 |
| Keidas AI Oy | Information & communication | 2024 |
| Keihäänkärki Oy | Professional & scientific | 1996 |
| Keijo Heinonen Oy | Professional & scientific | 1974 |
| Keijosen Grilli Oy | Health & social care | 2024 |
| Keikahduspiste Oy | Other services | 2023 |
| Keikkaamo Agency Oy | Professional & scientific | 2026 |
| Keikkailijat Oy | Professional & scientific | 1990 |
| Keikkastarat Oy | Administrative & support | 2024 |
| Keikkio Oy | Information & communication | 2026 |
| Keikko Partners Oy | Professional & scientific | 2024 |
| Keiko Ark Studio oy | Professional & scientific | 1984 |
| Keilaniemen K-Torni BotCo Ky | Real estate | 2022 |
| Keilaniemen K-Torni GP Oy | Real estate | 2022 |
| Keilaniemen K-Tower Kehitys Oy | Real estate | 2019 |
| Keilaniemen Kalliopysäköinti BotCo Ky | Real estate | 2022 |
| Keilaniemen Kalliopysäköinti GP Oy | Real estate | 2022 |
| Keilaniemen Kalliopysäköinti HoldCo Oy | Real estate | 2022 |
| Keilaniemen Torni 1 GP Oy | Financial services | 2019 |
| Keilaniemen Torni 1 Ky | Real estate | 2019 |
| Keilaniemen Torni 2 GP Oy | Financial services | 2019 |
| Keilaniemen Torni 2 Ky | Real estate | 2019 |
| Keilaniemen Valokeila BotCo Ky | Real estate | 2022 |
| Keilaniemen Valokeila GP Oy | Real estate | 2022 |
| Keilaniemen kiinteistökehitys GP Oy | Real estate | 2022 |
| Keilaniemen kiinteistökehitys Oy | Real estate | 2017 |
| Keilaniemen kiinteistökehitys Strike Ky | Real estate | 2022 |
| Keilaranta 4 Holding Oy | Real estate | 2019 |
| Keilaranta 4 Oy | Real estate | 2007 |
| Keilaranta 6 Holding Oy | Real estate | 2019 |
| Keilaranta 6 Oy | Real estate | 2007 |
| Keilaranta 8 Holding Oy | Real estate | 2019 |
| Keilaranta 8 Oy | Real estate | 2007 |
| Keimolan Parkki Oy | Administrative & support | 2025 |
| Keinänen Advisors Oy | Professional & scientific | 2019 |
| Keinänen Consulting Oy | Professional & scientific | 2024 |
| Keisa Oy | Professional & scientific | 2024 |
| Keisteri Oy | Transport & logistics | 2019 |
| Keiteleen Kone Oy | Wholesale & retail | 1991 |
| Keito Insights Oy | Information & communication | 2026 |
| Keittiö-2000 Oy | Wholesale & retail | 1985 |
| Keittiökulma Kökshörnan Oy Ab | Wholesale & retail | 2022 |
| Keittoni Oy | Wholesale & retail | 2013 |
| Kekas' Cab Oy | Transport & logistics | 2021 |
| KekeCapital Oy | Financial services | 2023 |
| Keken Kuljetusliike Oy | Transport & logistics | 1997 |
| Kekevara Oy | Financial services | 2025 |
| Kekri Food + Tech Oy | Professional & scientific | 2019 |
| Keksi Agency Oy | Professional & scientific | 2013 |
| KeleSoft avoin yhtiö | Information & communication | 2021 |
| Kelex Oy | Financial services | 2022 |
| Kellaribaarit Oy | Hospitality | 2017 |
| Kello- ja Kultaliike Piekäinen Oy | Wholesale & retail | 1947 |
| Kellohuolto Hanhela Oy | Other services | 2026 |
| Kellohuolto M Javanainen Oy | Other services | 1978 |
| Kellohuolto Vaara & Vilo | Wholesale & retail | 1986 |
| Kelloi Oy | Information & communication | 2023 |
| Kellokumpu Design Oy | Professional & scientific | 2013 |
| Kellomiehet Oy | Wholesale & retail | 1948 |
| Kellotalo Oy | Wholesale & retail | 2020 |
| Kellotornin panimo Oy | Manufacturing | 2025 |
| Kellumo Oy | Other services | 2015 |
| KellyDeli Oy | Manufacturing | 2019 |
| Kelm Holding Oy | Financial services | 2023 |
| Kelmi Consulting Oy | Information & communication | 2025 |
| Kelo Consulting Oy | Professional & scientific | 2026 |
| Kelo Finance Oy | Financial services | 2026 |
| Kelo Holding Oy | Financial services | 2026 |
| KeloAI Oy | Information & communication | 2025 |
| Keloglu Oy | Transport & logistics | 2025 |
| Kelokaira Oy | Real estate | 1981 |
| Kelokumpare Oy | Real estate | 1990 |
| Kelomaja Saka Oy | Real estate | 2018 |
| Kelomeri Oy | Hospitality | 1999 |
| Keloneva asianajotoimisto Oy | Professional & scientific | 2025 |
| Kelopesä Oy | Hospitality | 2008 |
| Kelor Oy | Professional & scientific | 1999 |
| Keloryhmä Oy | Financial services | 1989 |
| Kelpaa kelpaa Oy | Information & communication | 2026 |
| Kelpo Miesten Osuuskunta | Arts & recreation | 2016 |
| Keltainen Kabinetti Ky | Other services | 1997 |
| Keltainen Salonki Oy | Other services | 2004 |
| Keltainen talo maalla Oy | Hospitality | 2008 |
| Keltainen toimisto Oy | Professional & scientific | 2021 |
| Keltbray (Finland) Oy | Financial services | 2025 |
| Keltinkiniemi Oy | Real estate | 1971 |
| Kelttikorut 925 Oy | Wholesale & retail | 2015 |