| Ab Forsby Trä - Koskenkylän Puu Oy | Manufacturing | 1997 |
| Ab Tikander Marin Service Oy | Transport & logistics | 2016 |
| Advios Oy | Financial services | 2025 |
| BES Nova Oy | Hospitality | 2019 |
| Beretta Medics Oy | Health & social care | 2020 |
| Bigsell Oy | Professional & scientific | 2025 |
| Bistro Allé Ab | Hospitality | 2018 |
| Bisyssla Ab | Agriculture & fishing | 2025 |
| Bojo Oy | Transport & logistics | 1979 |
| CD-Stamp Oy | Wholesale & retail | 1993 |
| Caro Invest Oy | Financial services | 2021 |
| Constall Ky | Hospitality | 1999 |
| Etelä-Suomen Jätevesitekniikka Oy | Construction | 2007 |
| Etelän Nurmi Oy | Agriculture & fishing | 1987 |
| FM Transport Oy Ab | Transport & logistics | 2015 |
| Forest Strömberg Oy Ab | Agriculture & fishing | 2003 |
| ForestDoc Oy | Professional & scientific | 2022 |
| Forsby vattenandelslag | Water & waste | 1984 |
| Hans Wasenius Oy Ab | Financial services | 2011 |
| Hatac Oy | Wholesale & retail | 2019 |
| Hoffes El Ab | Construction | 2007 |
| Hugos byggtjänst Hugon rakennuspalvelu Oy Ab | Construction | 2024 |
| I.Ovaska Oy | Agriculture & fishing | 2022 |
| IMTT Finland Oy | Education | 1995 |
| J.L Kattomaalaus Oy | Construction | 2023 |
| Jukebox Oy Ab | Administrative & support | 1977 |
| KAR Oy | Arts & recreation | 2009 |
| KLC-Design Oy | Construction | 2002 |
| Kaivertimo Oy | Manufacturing | 2024 |
| Kaivin ja kuljetus Thesslund Oy | Construction | 2013 |
| Kiinteistö Oy Pelto-Seppälä | Real estate | 1962 |
| Kiinteistö Oy Pernajan Papinniitty | Real estate | 1981 |
| Kiinteistö Oy Pernajan Rinnetalo | Real estate | 1976 |
| Kivelän Voima Oy | Professional & scientific | 2024 |
| Korpi Labs Oy | Information & communication | 2026 |
| Ky Bioro Kb | | 1982 |
| Ky Meridiaani-Kirjat Kb | Manufacturing | 1991 |
| Kymen Valvontapalvelu Oy | Professional & scientific | 1990 |
| L. Eriksson trafik kb | Transport & logistics | 2000 |
| LVI-Marko Maho Oy | Construction | 2007 |
| La Casa del Sole Oy | Hospitality | 2024 |
| LaHell Oy | Transport & logistics | 2019 |
| Lipecan Oy | Real estate | 2006 |
| Lvi-asennus Ylivainio Oy | Construction | 2007 |
| ML-Marketing Ky | Wholesale & retail | 1994 |
| MSIart Oy | Professional & scientific | 2026 |
| Makea Juttu Oy | Agriculture & fishing | 2025 |
| Malba Oy Ab Ltd | Wholesale & retail | 2013 |
| Mr.B Building Crew Oy | Construction | 2023 |
| Multicresco Finland Oy | Professional & scientific | 2020 |
| Myllymajalammen Kiinteistö Oy | Agriculture & fishing | 1935 |
| Mörkö Invest Oy | Financial services | 2020 |
| Nordic Seaplane Oy | Administrative & support | 2008 |
| Oy Forsby Gård Ab | Agriculture & fishing | 1907 |
| Oy Konepalvelu Hannus & Nyström Ab | Agriculture & fishing | 2007 |
| Oy Koskenkylän Yrityspalvelu Ab | Real estate | 1989 |
| Oy Ronny's Restaurants Ab | Hospitality | 2010 |
| Oy Stratotec Ab | Professional & scientific | 2007 |
| P. Sani Oy | Wholesale & retail | 2021 |
| Perhekoti Fabian Oy | Health & social care | 2017 |
| Piha ja Taloexpertit Oy | Administrative & support | 2005 |
| Porvoon Lakritsi Oy | Manufacturing | 1982 |
| Porvoon Ompelukonepalvelu Oy | Wholesale & retail | 2017 |
| Porvoon nuohoojamestarit Oy | Administrative & support | 2010 |
| ProMason Oy | Construction | 2025 |
| Raksasämpylä Oy | Hospitality | 2022 |
| SJH Hirvonen Oy | Transport & logistics | 2022 |
| SJH Kuljetus Oy | Transport & logistics | 2017 |
| Sani Living Oy | Wholesale & retail | 2022 |
| Scasi Oy LKV | Real estate | 1998 |
| Schools Out OY | Hospitality | 2025 |
| Sipodos Oy | Construction | 1995 |
| Stefan Maritime Oy Ab | Transport & logistics | 2014 |
| TMS Fix Oy | Construction | 2021 |
| Vaaranpaikat Oy | Real estate | 2022 |
| Veljekset Eriksson Finland Ky | Transport & logistics | 1997 |