| 24-RAHTI OY | Administrative & support | 2024 |
| A-Profiware Oy | Other services | 1986 |
| Agri-Tila OY | Real estate | 2008 |
| AIB Kiinteistötekniikka OY | Construction | 2026 |
| AJS-Metalli Oy | Wholesale & retail | 2012 |
| AJT Tools Oy | Wholesale & retail | 2017 |
| Ariab-Urakointi OY | Construction | 2012 |
| AV Energia Oy | Construction | 2023 |
| Ab Wilxte - 1 Oy | Real estate | 2023 |
| Ab Wilxte - 2 Oy | Real estate | 2023 |
| Ab Wilxte - 3 Oy | Real estate | 2023 |
| Ab Wilxte - Luonto Oy | Real estate | 2023 |
| Ainankallio Oy | Construction | 2018 |
| Aittakivi Oy | Manufacturing | 2006 |
| Alfera Ky | Wholesale & retail | 2001 |
| Allspark Oy | Real estate | 2022 |
| Alvon Valo- ja sähköasennus Oy | Construction | 2020 |
| Arctic Gem Finland Oy | Professional & scientific | 1991 |
| Arjen Valmentaja Ky | Other services | 2022 |
| Arkosoft Oy | Information & communication | 1992 |
| Asennus & Kotiapu Rossi Oy | Construction | 2020 |
| Atso Rauhala Oy | Construction | 2016 |
| Avuksen Oy | Construction | 2011 |
| B & H Bäckman Oy | Transport & logistics | 1989 |
| Beleton Oy | Professional & scientific | 1997 |
| Dianna Oy | Wholesale & retail | 2013 |
| Dinni Oy | Financial services | 1987 |
| Disni tec oy | Real estate | 2024 |
| Drinkinvest Oy | Hospitality | 1993 |
| E-Link Oy | Wholesale & retail | 2024 |
| Eero Pass Oy | Construction | 2013 |
| Eldsjälen Oy | Professional & scientific | 2022 |
| Elnak Oy | Construction | 2023 |
| Equitrade Oy | Arts & recreation | 1985 |
| Erkamet Oy | Manufacturing | 2005 |
| Euro-Laukku Oy | Hospitality | 1969 |
| Eyemaker's Finland Oy | Financial services | 1989 |
| Farm Man Oy | Agriculture & fishing | 2023 |
| FinLaser Oy | Manufacturing | 2021 |
| Fysikaalinen hoitolaitos Fysiorasti Ky | Health & social care | 1996 |
| H&J Hallipalvelut Oy | Real estate | 2023 |
| HCCV Consulting Oy | Professional & scientific | 2007 |
| He-Vi Hasila OY | Manufacturing | 2009 |
| HRP-Jetro Oy | Real estate | 2012 |
| Haapakallio Design Ky | Arts & recreation | 2019 |
| Hammaslaboratorio Muotohammas ky | Manufacturing | 1985 |
| Heinolan Yrityssuunnittelu Oy | Professional & scientific | 1991 |
| HiHa Putkitus Oy | Construction | 2026 |
| Hoitotalo Oy | Health & social care | 2025 |
| Hut Capital & Consulting Oy | Financial services | 2025 |
| Häkylä-Kiinteistöt Oy | Real estate | 1989 |
| Hämeen Kalkki ja Lannoite Oy | Real estate | 1995 |
| Hämeen Metsätyö Oy | Agriculture & fishing | 2014 |
| Hämeen Perhepakkaamo Oy | Real estate | 2011 |
| Hämeen Rakennustutkimus Oy | Construction | 2007 |
| Hämeen Raksamiehet Oy | Construction | 2021 |
| Hämeen hoito ja rakennus Oy | Construction | 2011 |
| Ikaros Services Oy | Transport & logistics | 2015 |
| Ilmastointihuolto Koivisto OY | Energy | 2020 |
| J2H Oy osto, myynti ja vuokraus | Other services | 2020 |
| JEK-Poltintekniikka Ky | Construction | 2003 |
| JK Hakkurit Oy | Manufacturing | 2010 |
| JT-Konetekniikka Oy | Manufacturing | 2023 |
| JaKa Services Oy | Transport & logistics | 2023 |
| Jupo Capital Oy | Professional & scientific | 2020 |
| K-Halli Rautiainen Kommandiittiyhtiö | Wholesale & retail | 1979 |
| KH Wellbeing Oy | Arts & recreation | 2026 |
| Kanta-Hämeen Perhepalvelut Oy | Health & social care | 2018 |
| Kanta-Hämeen Showtekniikka Oy | Arts & recreation | 2012 |
| Kas-juuri Oy | Agriculture & fishing | 2020 |
| Kataloisten vesiosuuskunta | Water & waste | 2003 |
| Kauppatie Minna Koivisto Ky | Manufacturing | 2014 |
| Keijo Kääriäisen Jälkeläiset - KKJ Oy | Professional & scientific | 1997 |
| Kerisalon Pellava Ky | Manufacturing | 1983 |
| Kiinteistö Koivu Oy | Real estate | 2018 |
| Kiinteistö Oy Hillavilla | Real estate | 2005 |
| Kiinteistö Oy Lammi-Hallit | Real estate | 2010 |
| Kiinteistö Oy Lammin Onnenvuori | Real estate | 1989 |
| Kiinteistö Oy Lammin Pajahalli 11 | Real estate | 1990 |
| Kiinteistö Oy Lammin Vare | Real estate | 1990 |
| Kiinteistö Oy Lamminraitti | Real estate | 1970 |
| Kiinteistö Oy Mutastentie 4, Lammi | Real estate | 2018 |
| Kiinteistötoimisto Eino Hakala Oy | Real estate | 1984 |
| Kiito-Papinkivi Oy | Transport & logistics | 1997 |
| KoKo Import Ky | Wholesale & retail | 2007 |
| Kolarikorjaamo L. Simola Oy | Other services | 2019 |
| Kommandiittiyhtiö Teijo Pullinen | Manufacturing | 1987 |
| Kone- ja metsäpalvelu Saarenpää Oy | Agriculture & fishing | 2013 |
| Kone-Pantsar Oy | Agriculture & fishing | 1999 |
| KoneKarvoset Oy | Agriculture & fishing | 2024 |
| Konsultointi ja tilintarkastus Ilkka Yli-Räisänen Oy | Professional & scientific | 1976 |
| Kontion Moniapu Oy | Construction | 2009 |
| Kontion Torppa Oy | Agriculture & fishing | 2021 |
| Koskisen Betoni Oy | Manufacturing | 1999 |
| Kostila Agri Oy | Other services | 2022 |
| Kotipalvelu MaaRia Oy | Health & social care | 2020 |
| Kribu Oy | Agriculture & fishing | 2024 |
| Kuljetus Risto Salomaa Ky | Transport & logistics | 1999 |
| Kuljetus Toukovalkama Oy | Transport & logistics | 1997 |
| Kuljetus ja Korjaus Pekka Saarinen Ky | Transport & logistics | 1990 |