| 3D Smart Oy | Manufacturing | 2025 |
| A1 Tradehouse Corp. Oy | Professional & scientific | 2015 |
| AA Clean avoin yhtiö | Construction | 2004 |
| AB-Lista Oy | Construction | 2025 |
| AJP-Tekniikka Oy | Manufacturing | 1997 |
| Aakia Interiors Oy | Professional & scientific | 2026 |
| Aania Oy | Arts & recreation | 2023 |
| Ahma Service Ky | Construction | 2018 |
| Aho Palvelut Oy | Manufacturing | 1996 |
| Aksun & Annan kotipalvelu Oy | Real estate | 2020 |
| AnLee Oy | Financial services | 2023 |
| AnnSystems Avoin yhtiö | Professional & scientific | 1997 |
| Asennuspalvelu MJV Oy | Construction | 2025 |
| Boat Fix Lahti OY | Manufacturing | 2024 |
| Constru Oy | Manufacturing | 2004 |
| D-Tech Oy | Construction | 2021 |
| Decorasí Oy | Professional & scientific | 2018 |
| EL Multisport Oy | Other services | 2017 |
| EX Invest Oy | Real estate | 2022 |
| Epex Oy | Construction | 2022 |
| FD Group Oy | Financial services | 1987 |
| Finland4U Oy | Administrative & support | 2024 |
| HENLA design Oy | Manufacturing | 2024 |
| HWA-Pipe Oy | Construction | 2011 |
| Hartak Oy | Professional & scientific | 2009 |
| Hekan Urakat Oy | Construction | 2013 |
| Hoyo Oy | Arts & recreation | 2024 |
| Humi Store Oy | Financial services | 2018 |
| Huolto- ja asennuspalvelu Jämsä Oy | Administrative & support | 2025 |
| IMMT Flow Oy | Wholesale & retail | 2025 |
| Ilvesrakentajat Oy | Construction | 2020 |
| Inborn Promise Oy | Real estate | 2000 |
| Ionic Hockey Oy | Wholesale & retail | 2026 |
| JJH-Palvelu Oy | Construction | 2008 |
| JL Autohoito Oy | Other services | 2018 |
| JPH Marketing Ky | Wholesale & retail | 2022 |
| Jopvest Oy | Financial services | 2021 |
| Juhlapuu Oy | Agriculture & fishing | 2008 |
| Kise OY | Professional & scientific | 2003 |
| Kaikki Somesta Oy | Professional & scientific | 2021 |
| Kelemen Oy | Construction | 2023 |
| Kiinteistö Oy Hollolan Kuusitupa | Real estate | 1992 |
| Kiinteistö Oy MHR 56 | Real estate | 2025 |
| Kiinteistö Oy MHR 58 | Real estate | 2025 |
| Kiinteistö Oy Moukarikatu 5 | Real estate | 2018 |
| Kiinteistö Oy Peltimäki | Real estate | 1978 |
| Kiinteistöyhtiö Norri & Lönnqvist | Real estate | 2001 |
| Kiperä Ky | Construction | 2017 |
| Krukki Oy | Information & communication | 2023 |
| Ks-betonirakenne oy | Construction | 2024 |
| Kuljetus L & J Tuominen Oy | Transport & logistics | 2011 |
| Kuljetus Petri Vuorio Oy | Transport & logistics | 2023 |
| Kuutti Invest Oy | Real estate | 2024 |
| LRA Oy | Professional & scientific | 2021 |
| Lahden Henkilöliftit Oy | Construction | 2001 |
| Lahden Laatutarvike Oy | Wholesale & retail | 1987 |
| Lahden Rakennusmaalaus Oy | Construction | 2015 |
| Lahden Seudun Lemmikkieläinhoitola Ky | Other services | 2007 |
| M&A Sales Oy | Wholesale & retail | 2026 |
| MSBI Consulting Oy | Information & communication | 2013 |
| Maalaus ja Rakennus A. Hartikainen Ky | Construction | 1989 |
| Maalausliike Matti Pakarinen Oy | Construction | 2000 |
| Makrak Oy | Construction | 2015 |
| Markko Ihamuotila Consulting Oy | Administrative & support | 2023 |
| Meaters Oy | Wholesale & retail | 2015 |
| Mollinvest Oy | Financial services | 2020 |
| Momentum Communication Oy | Professional & scientific | 2025 |
| Moniala Palvelut Nurminen Oy | Other services | 2019 |
| Myyntiyhtiö MT Oy | Wholesale & retail | 2024 |
| NordKone Oy | Wholesale & retail | 2025 |
| Nunecom Oy | Real estate | 2016 |
| O.R.J.A. Työpalvelu Ky | Administrative & support | 2018 |
| OVK Invest Oy | Financial services | 2019 |
| Oiva Aika Oy | Health & social care | 2025 |
| Ora Invest Oy | Professional & scientific | 2024 |
| Packrock Oy | Wholesale & retail | 2023 |
| Paljärvi Oy | Real estate | 1974 |
| Peerent Oy | Administrative & support | 2007 |
| Peltisepänliike P. Ora Oy | Construction | 2009 |
| Perhekoti Joikula Oy | Health & social care | 2006 |
| Pertti Heinonen Anestesia Oy | Health & social care | 2012 |
| Petrak Oy | Construction | 2017 |
| Pintaurakointi Paami Oy | Construction | 2021 |
| Pixmap Oy | Professional & scientific | 1986 |
| Plastooling oy | Manufacturing | 2026 |
| Powerins Oy | Professional & scientific | 2021 |
| Pro Assistance Oy | Other services | 1988 |
| Procordia Oy | Professional & scientific | 2022 |
| RAM-urakointi Oy | Construction | 2008 |
| Rajro Oy | Health & social care | 2023 |
| Rakennus Vilen Avoin yhtiö | Construction | 2003 |
| Rakennuspalvelu M. Vainio Oy | Construction | 2018 |
| Rakennuspalvelu Salmensuu Oy | Construction | 2022 |
| Ramo Mia Oy | Construction | 2017 |
| Redsoil Ltd Oy | Arts & recreation | 2019 |
| Remonttipalvelu Hakanen Oy | Construction | 2014 |
| Salpek Oy | Professional & scientific | 2020 |
| Siltala yhtiöt oy | Manufacturing | 2024 |
| Sorpera ky | Manufacturing | 1985 |
| Suokas Avionics Oy | Manufacturing | 2013 |