| 1620 Satu Pura Oy | Wholesale & retail | 2018 |
| A & O Design Oy | Wholesale & retail | 2017 |
| Aluovi Oy | Professional & scientific | 2024 |
| Antella Oy | Professional & scientific | 1990 |
| Antti Amonsen Oy | Wholesale & retail | 2022 |
| Autohuolto S Saarinen Ky | Real estate | 1974 |
| Autoyhtymä H. Jaakkola Oy | Wholesale & retail | 1979 |
| Autoyhtymä Valtonen Ky | Transport & logistics | 1981 |
| Besney Kakkonen Oy | Real estate | 2008 |
| Brotherfly Oy | Professional & scientific | 2024 |
| Cafe Tammela Ky | Hospitality | 2022 |
| Cafelot Ky | Hospitality | 2003 |
| Caives Creative Oy | Professional & scientific | 2019 |
| Delimarket Finland Oy | Wholesale & retail | 2009 |
| Diamond Consulting Oy | Professional & scientific | 2014 |
| Dynamo Ohjelmapalvelut Oy | Administrative & support | 2024 |
| Ekoil Oy | Manufacturing | 1990 |
| Eriem Oy | Professional & scientific | 2012 |
| Esa Reikko Oy | Financial services | 2025 |
| Etelä-Suomen Vesitekniikka Oy | Construction | 2022 |
| Etelä-Tammelan Vesihuolto Oy | Professional & scientific | 1980 |
| FTT-SECTEC Oy | Real estate | 2021 |
| FTT-Turvatekniikka Oy | Construction | 2005 |
| FennoMIL Oy | Manufacturing | 2022 |
| Fi Asennus Oy | Construction | 2011 |
| FinMA - Service Oy | Professional & scientific | 2019 |
| Fix & Design Tammela Ky | Construction | 2007 |
| Fomek Oy | Manufacturing | 1994 |
| Forssan Kuntouttamislaitos Oy | Health & social care | 1976 |
| Fysioterapeutti Päivi Salminen Ky | Health & social care | 2004 |
| Glassprojects J. Immonen Ky | Manufacturing | 1976 |
| H&C Team Oy | Hospitality | 2022 |
| H&MS-Meal Oy | Hospitality | 2024 |
| HH Huoneistot Oy | Real estate | 2022 |
| HS-Meal Oy | Hospitality | 2019 |
| Haapalan Siivous Oy | Administrative & support | 2002 |
| Haavisto-Invest Oy | Real estate | 2013 |
| Hakkapeliitta Puolustus Oy | Wholesale & retail | 2020 |
| Harbor Lights Oy | Financial services | 1989 |
| Hejar Oy | Professional & scientific | 2006 |
| Hämeen Sähkötoimi Oy | Construction | 2008 |
| IHAKA Oy | Manufacturing | 2022 |
| Ideaattori Oy | Professional & scientific | 2009 |
| Infrakasi Oy | Construction | 2012 |
| Istira Oy | Administrative & support | 2011 |
| J & A Simelius | Administrative & support | 2011 |
| J. Viksten Ky | Construction | 2012 |
| JK Commerce Oy | Professional & scientific | 2011 |
| Jka-Asennus OY | Construction | 2018 |
| JS-Rata Oy | Professional & scientific | 2020 |
| JSJ-Ikkuna Oy | Construction | 2019 |
| Jenna Production Oy | Manufacturing | 2024 |
| JkSaKe Oy | Construction | 2022 |
| Jouko Virta Oy | Manufacturing | 2000 |
| Ju-Jok Oy | Administrative & support | 2016 |
| Juhlien Lumous Oy | Hospitality | 2016 |
| JuniperHill F & D Oy | Professional & scientific | 2024 |
| Junoka Ky | Wholesale & retail | 1987 |
| Just Another Gadget Oy | Professional & scientific | 2016 |
| Jyrki Louhelo Ky | Other services | 1990 |
| Jökkeli Transport Oy | Transport & logistics | 2014 |
| KK Wellness Oy | Arts & recreation | 2023 |
| Kanta-Hämeen Kauppahuone Oy | Wholesale & retail | 1994 |
| Karaaslan avoin yhtiö | Hospitality | 2017 |
| Karma Holding Oy | Financial services | 2024 |
| Kaupin Kiinteistökoneet Oy | Construction | 1990 |
| Kestokunto Oy | Arts & recreation | 1993 |
| Kiinteistö Oy Faktalo-Rakenne | Real estate | 1995 |
| Kiinteistö Oy Marjakumpu | Real estate | 2000 |
| Kiinteistö Oy Matintausta | Real estate | 2009 |
| Kiinteistö Oy Pohjarannan Meriranta | Real estate | 1991 |
| Kiinteistö Oy Salmen Teollisuushalli | Real estate | 1983 |
| Kiinteistö Oy Tahkonkallio | Real estate | 2005 |
| Kiinteistö Oy Tammelan Vuokra-asunnot | Real estate | 1995 |
| Kiinteistö Oy Vesikoskenkatu 20 | Real estate | 1986 |
| Kiinteistö Oy Vessentalot Jokioinen | Real estate | 1987 |
| Kiinteistö Viikari Oy | Real estate | 2023 |
| Kiinteistöosakeyhtiö Tammelan Tammilehto | Real estate | 1996 |
| Kiinteistötoimi Arola Oy | Real estate | 1990 |
| Kilpailutuspaja Oy | Professional & scientific | 2015 |
| Kivisika Oy | Financial services | 2026 |
| Koivuhuhta Oy | Transport & logistics | 2015 |
| Koneurakointi Niittylä Oy | Construction | 2017 |
| Koneurakointi Ylitalo Oy | Construction | 2021 |
| Koskelo SAP Data Services Oy | Information & communication | 2013 |
| Koy Teräsmies | Real estate | 2008 |
| Kuljetus M. Jarnila Oy | Transport & logistics | 2015 |
| Kuljetusliike Team Tuovila Ky | Transport & logistics | 1985 |
| Kuusi Design Oy | Manufacturing | 2017 |
| Kymppitien Vaihto-osa avoin yhtiö | Water & waste | 1999 |
| Lemström Services Ky | Transport & logistics | 2016 |
| Leppälehdon Puutarha Oy | Wholesale & retail | 1992 |
| Leppäranta Holding Oy | Financial services | 2024 |
| Liinaharja Oy | Agriculture & fishing | 1998 |
| Lindabella Oy | Health & social care | 2004 |
| Loma Raudus Oy | Administrative & support | 1990 |
| Loyal Trading Group Oy | Professional & scientific | 2015 |
| Lunkaan Monipalvelu Oy | Construction | 2005 |
| M-Rakennus Oy | Construction | 2006 |
| ML-Laatuhuolto Oy | Manufacturing | 2018 |