| 24K Gold Cafe Oy | Hospitality | 2020 |
| Alriit Oy | Financial services | 1985 |
| Anteris Oy | Manufacturing | 2016 |
| Atmos Group Finland Oy | Information & communication | 2024 |
| Autofine Oy | Wholesale & retail | 2006 |
| C.A.R. Sarkkola Oy | Other services | 1999 |
| CD Malexer Oy | Other services | 2024 |
| Callardo Capital Oy | Real estate | 2013 |
| Charter Mikkola Oy | Transport & logistics | 2007 |
| Eero Heikkilä Ky | Other services | 2011 |
| Enkelten Koti Oy | Education | 2010 |
| Esa's Culinars Ky | Hospitality | 1988 |
| Gee Technology Oy | Professional & scientific | 2002 |
| Greensail Oy | Administrative & support | 2005 |
| HPP EUROPE Oy | Wholesale & retail | 2004 |
| Hauhon Kiinteistökeskus Oy | Real estate | 2000 |
| Hauhon Lääkintävoimistelu Oy | Health & social care | 1990 |
| Hauhon Meijerikiinteistöt Oy | Real estate | 2021 |
| Hauhon Myllärit Oy | Manufacturing | 1987 |
| Hauhon Pesulapalvelut Oy | Other services | 2019 |
| Hauhon Puutyöpalvelu Oy | Manufacturing | 1989 |
| Hauhon Siivouspalvelut Oy | Health & social care | 2023 |
| Hauhon Tilitoimisto Oy | Professional & scientific | 1980 |
| Hauhotalo Oy | Real estate | 2012 |
| Heveli Oy | Real estate | 1979 |
| Himos Asunnot Oy | Real estate | 2025 |
| Hipis Oy | Wholesale & retail | 2022 |
| Huoltoasema S. Miettinen Ky | Wholesale & retail | 1956 |
| Hämeen LämpöAalto Oy | Construction | 2015 |
| Hämeen Rakennuspuu Ky | Manufacturing | 1978 |
| Ilonen Invest Oy | Financial services | 2003 |
| Iloranta Oy | Hospitality | 1973 |
| Ilosen Puutyö Ky | Manufacturing | 1957 |
| Ipo Oy | Real estate | 1981 |
| Ipron Oy | Manufacturing | 2008 |
| J & Him OY | Wholesale & retail | 2007 |
| J Passila Ky | Transport & logistics | 1990 |
| JL-Infra Oy | Professional & scientific | 2014 |
| JMY Hirsi Rakenne Oy | Wholesale & retail | 1994 |
| JMY Rakennus Oy | Construction | 1996 |
| Jr-Cargo OY | Transport & logistics | 2002 |
| JR-Forest Oy | Manufacturing | 1988 |
| Jorma Virtanen Oy | Transport & logistics | 1997 |
| Justin Wood Oy | Wholesale & retail | 1995 |
| KJS-Välitys Oy | Transport & logistics | 1989 |
| Kahmalo Oy | Real estate | 2010 |
| Kahvila Meirän Muori Oy | Hospitality | 2023 |
| Kaipainen Arkkitehdit Oy | Professional & scientific | 2021 |
| Kantolan Kuivaus Oy | Manufacturing | 1996 |
| Kasu Elektroniikka Oy | Manufacturing | 2001 |
| Keebuy Oy | Wholesale & retail | 2009 |
| Kesti-Paakari Oy | Manufacturing | 1984 |
| Kettupassi Oy | Transport & logistics | 2020 |
| Kiinteistö Oy Hauhon Leppälä | Real estate | 1994 |
| Kiinteistö Oy Hauhon Loviisantie 2 | Real estate | 2021 |
| Kiinteistö Oy Hämeenlinnan Ukkometso | Real estate | 2013 |
| Kiinteistömokia Oy | Financial services | 1993 |
| Kill City Sound Oy | Wholesale & retail | 1991 |
| Kirjakauppa Napakettu | Information & communication | 2020 |
| Kleemolan tila Oy | Agriculture & fishing | 2013 |
| Konepalvelu Kaipainen Ky | Construction | 1988 |
| Kontuvahti Oy | Administrative & support | 2020 |
| Kotiapu Laaksonen Oy | Administrative & support | 2012 |
| Kotkonharjun Vesihuolto-osuuskunta | Water & waste | 2024 |
| Kuljetus J&J Sillanpää Oy | Transport & logistics | 2021 |
| Kuljetus J. Passila & V. Hannula Oy | Transport & logistics | 2015 |
| Köykän Lomamökit/ Tila Oy | Agriculture & fishing | 2023 |
| Lahden Lujalaatu Oy | Construction | 1980 |
| Laserilla Oy | Manufacturing | 2008 |
| Leirinuotio Oy | Administrative & support | 2010 |
| Leppäniemen Hirsihuvilat Oy | Hospitality | 2024 |
| Lounaskahvila Kopintalo Oy | Hospitality | 2023 |
| MAHTInvest Oy | Real estate | 2025 |
| MH Helmi Oy Lkv | Real estate | 2012 |
| MRKP-Kiinteistöt Oy | Water & waste | 2017 |
| MRKP-Yhtiöt Oy | Construction | 1996 |
| MV-Gradient Oy | Administrative & support | 1992 |
| Maansiirto & Kuljetus E.Järvi Oy | Transport & logistics | 1982 |
| Markku ja Sanna Rinne avoin yhtiö | Wholesale & retail | 2010 |
| Matkapuhelinhuolto Novika Ky | Other services | 2003 |
| Matti Rantti Ky | Wholesale & retail | 1984 |
| Meisu Oy | Manufacturing | 1992 |
| Mikkolan Liikenne Oy | Transport & logistics | 1977 |
| Mikonheikki Oy | Arts & recreation | 2021 |
| Mustilan Farmi Oy | Arts & recreation | 2024 |
| Nebel Oy | Real estate | 2011 |
| Nooms Oy | Wholesale & retail | 2019 |
| PR Muttonen Oy | Construction | 2018 |
| Pietilä Forester Oy | Agriculture & fishing | 2017 |
| Piharakenne Aaltonen Ky | Construction | 2003 |
| Portaan Kiinteistö ja Kuljetus Oy | Real estate | 2011 |
| Rt-Lyytinen OY | Construction | 2024 |
| Rakennus Erno Sarin Oy | Construction | 2005 |
| Rakennusliike Terak oy | Construction | 2007 |
| Rantanukari Oy | Hospitality | 2026 |
| Rapidaile Oy | Financial services | 2013 |
| Ravintola Neljä Oravaa Oy | Hospitality | 2017 |
| Regant Oy | Real estate | 2024 |
| Regant Project Development Oy | Real estate | 2026 |
| Riikka Östman OY | Health & social care | 2018 |