| Peksi.Mb OY | Agriculture & fishing | 2019 |
| Phendogan OY | Administrative & support | 2008 |
| Palander Management Finland Oy | Arts & recreation | 2002 |
| Parturi-Kampaamo Salon Peppiina Oy | Other services | 2008 |
| Pelti Kalle Oy | Construction | 2024 |
| Phocoena Oy | Wholesale & retail | 1997 |
| Pilvi Holding Oy | Wholesale & retail | 2008 |
| Prestige Enchanter Oy | Professional & scientific | 2011 |
| Primero-Palvelut Oy | Hospitality | 2013 |
| Pyörre Oy | Financial services | 1986 |
| RMC Risk Management Consulting Oy | Information & communication | 2000 |
| RT-Linkki Oy | Real estate | 2001 |
| Rakennus S. V. Turunen Oy | Construction | 2001 |
| Rakennusleevi Oy | Construction | 2000 |
| Rakennusliike Hannu Rautiainen Oy | Construction | 2010 |
| Rakennusliike Se-Ro-Ka Oy | Construction | 1993 |
| Rakennusliike Teuvo Hautala Oy | Construction | 1987 |
| Rakennuspalvelu Vasara Oy | Construction | 2007 |
| Reipas ja veli Oy | Real estate | 2024 |
| Retsanhill Oy | Administrative & support | 2025 |
| Rintala Group Oy | Arts & recreation | 2016 |
| Rotanpolvi Media Oy | Professional & scientific | 2023 |
| SPA Kiinteistöt Oy | Real estate | 2025 |
| Salmarinus Oy | Professional & scientific | 2006 |
| Sapier Oy | Wholesale & retail | 2010 |
| SaxumSec Oy | Information & communication | 2025 |
| Sheaps Oy | Professional & scientific | 2021 |
| Sigma Consulting Oy | Information & communication | 2012 |
| Sisustuskisällit Oy | Construction | 1982 |
| Skaffi Oy | Wholesale & retail | 2023 |
| Skillmotor Finland Oy | Professional & scientific | 2020 |
| SofiTrade Oy | Professional & scientific | 2025 |
| Studio Signe Oy | Professional & scientific | 2024 |
| Suomen Happituonti Oy | Wholesale & retail | 2019 |
| Suvilahden Puu Oy | Real estate | 1936 |
| Syömishäiriöiden Sairaanhoitopalvelut Lea Attila Oy | Public administration | 2026 |
| TH-Markkinointi Oy | Wholesale & retail | 1995 |
| Tiina Heli Osakeyhtiö | Hospitality | 2010 |
| TJ-Tekniikka Oy | Construction | 2009 |
| TL-Palvelukiinteistöt Oy | Real estate | 1995 |
| Taksikuljetus Kuusela Oy | Transport & logistics | 1960 |
| Tehojakelu Oy | Construction | 2021 |
| The Amazing Ventures of Johnny Vortex Oy | Financial services | 2024 |
| Tiforp Ltd Oy | Transport & logistics | 1997 |
| Tilt Service Oy | Other services | 2023 |
| TopTerapia Oy | Health & social care | 2023 |
| Traktoriurakointi J.Hytönen Oy | Construction | 2010 |
| Tuulan Tilukset Oy | Professional & scientific | 2008 |
| Tylsää Oy | Administrative & support | 2024 |
| US-Asennus Oy | Construction | 2004 |
| Unelma Toimet Oy | Administrative & support | 2015 |
| VHL-Palvelut Oy | Financial services | 1975 |
| Vantaan Peltiasennus Oy | Construction | 2026 |
| VareVet Oy | Professional & scientific | 2025 |
| VarikkoPro Oy | Information & communication | 2026 |
| Vihdin Kuumasinkitys Oy | Manufacturing | 2016 |
| Vihdin Maanrakennus Oy | Construction | 1986 |
| Vihti Golf Oy | Arts & recreation | 1999 |
| Vihti Resort Oy | Arts & recreation | 2008 |
| Vihti Ski Center Oy | Arts & recreation | 1988 |
| Vinkkeli Kiinteistö Oy | Real estate | 2024 |
| Väänänen sijoitus Oy | Construction | 2026 |
| Wilda Consulting Oy | Professional & scientific | 2006 |
| Wilhelm Investment Oy | Financial services | 2009 |
| X-Pertit Oy | Administrative & support | 2025 |
| YksHomma Oy | Construction | 2026 |
| openote Oy | Information & communication | 2026 |
| veljekset kuin ilvekset avoin yhtiö | Information & communication | 2014 |