| A&P Hallit Pajalle Oy | Real estate | 2024 |
| Aiv-Mar Oy | Construction | 2016 |
| Ajatusenkelit Oy | Professional & scientific | 2023 |
| Apuantero Ky | Construction | 2008 |
| Augustin Services Oy | Wholesale & retail | 2026 |
| Avex Partners Oy | Transport & logistics | 1993 |
| Cajuvi Invest Oy | Financial services | 2020 |
| DIV Group Oy | Education | 2025 |
| ESJ Musiikki Ky | Information & communication | 1991 |
| Easy Phone App Finland Oy | Information & communication | 2021 |
| Eija Majuri Ky | Education | 2005 |
| Elmeri Rakennuspalvelut Oy | Construction | 2025 |
| Gofast Ky | Wholesale & retail | 1986 |
| Gutsy Media Oy | Information & communication | 2016 |
| HSV Solutions Oy | Administrative & support | 2019 |
| Hair Set Salongit Oy | Other services | 1995 |
| Harvitek Ky | Construction | 1989 |
| ICECOAT FINLAND Oy | Manufacturing | 2018 |
| Jari Molander Ky | Transport & logistics | 2002 |
| Jonses Oy | Wholesale & retail | 1998 |
| K&J Lindberg Palvelut Oy | Transport & logistics | 2023 |
| K. Penttinen Oy | Transport & logistics | 2011 |
| Karttum Oy | Construction | 2017 |
| Kauppahuone Harjunpää Oy | Wholesale & retail | 1994 |
| Keskuskadun Tedix Oy | Administrative & support | 2014 |
| Kiinteistö Oy Vihtijärven Mäntyharju | Real estate | 2024 |
| Kor-dinator Korpiniitty Ky | Professional & scientific | 2001 |
| Kuljetus & Maanrakennusliike J Vihtkari Ky | Transport & logistics | 1994 |
| Kuljetus Raappana Oy | Transport & logistics | 2011 |
| Kuljetusliike T & R Rytkönen Ky | Transport & logistics | 1990 |
| LG Playschool Oy | Education | 2008 |
| Lempimetsä Oy | Agriculture & fishing | 2022 |
| M & J Partners Oy | Real estate | 2019 |
| Maalaus Hentilä Oy | Construction | 2021 |
| Maanrakennus Vihtkari Ky | Construction | 2023 |
| Maatyö Sundström Oy | Construction | 2018 |
| Mediva Oy | Health & social care | 2006 |
| Mira J Group Oy | Professional & scientific | 2026 |
| Moonstar Oy | Wholesale & retail | 2021 |
| NS Group Finland Oy | Construction | 2019 |
| NS Vuokrapalvelut Oy | Agriculture & fishing | 2023 |
| Noja Yhtiöt Oy | Construction | 2008 |
| NordSolar Oy | Wholesale & retail | 2020 |
| NordTele Oy | Information & communication | 2024 |
| Nuohous ja ilmastointi Ahvenharju Oy | Administrative & support | 2019 |
| Oy Woodeco Ltd | Wholesale & retail | 2002 |
| PH-Saneeraajat Oy | Construction | 1997 |
| PJK Katsastuspalvelu OY | Administrative & support | 2023 |
| Pallosalama Karpo Oy | Information & communication | 1970 |
| RI Rent Oy | Administrative & support | 2019 |
| Radical-rakennus Oy | Construction | 2016 |
| Rakennusliike Vihdin Laatutyö Oy | Construction | 1996 |
| Rakennusyhtiö A Oy | Construction | 2026 |
| Raksem Oy | Construction | 2023 |
| ST-Kek Company Oy | Real estate | 1996 |
| Sandcat Oy | Construction | 2013 |
| Syökerin Tupa Ky | Hospitality | 2005 |
| Tekubetoni Oy | Administrative & support | 1993 |
| TuPaussi Ky | Hospitality | 2022 |
| Uudenmaan kultakaiverrus Oy | Other services | 2008 |
| Vesi-Lämpö Vaskela Oy | Construction | 1983 |
| Vihdin Villimarja Ky | | 1929 |
| Vihtijärven vesiosuuskunta | Construction | 2008 |
| Vihtkari Oy | Real estate | 1994 |