| A. Niemiaho Oy | Agriculture & fishing | 2020 |
| A. Ojalehto Oy | Manufacturing | 2025 |
| AB-Optimal Oy | Manufacturing | 2024 |
| AJ Ohtamaa Oy | Agriculture & fishing | 2023 |
| Akselin & Elinan Asema Oy | Hospitality | 2018 |
| AmaKone Oy | Construction | 2023 |
| Art-P Invest & Hodl Oy | Financial services | 2023 |
| Art-P Oy | Professional & scientific | 2021 |
| Autiomäki Oy | Agriculture & fishing | 2018 |
| BonumMind Oy | Health & social care | 2019 |
| EK Keski-Korpi Oy | Construction | 2013 |
| EPMT Oy | Professional & scientific | 2021 |
| Erikoiskuljetus Kyllönen Oy | Transport & logistics | 1994 |
| Ferrocraft Oy | Real estate | 2002 |
| Finnsvala Oy | Manufacturing | 1990 |
| Fresh Fusion Capital Oy | Real estate | 2024 |
| HaKo Invest Oy | Hospitality | 2025 |
| Haapakosken Työpalvelu Oy | Construction | 2021 |
| Havulatva Oy | Professional & scientific | 2020 |
| Henrys' Show Oy | Manufacturing | 2023 |
| Hilkka ja Timo Kallio Ky | Transport & logistics | 1982 |
| Hillparts Oy | Financial services | 2025 |
| J. Huovila Oy | Hospitality | 2018 |
| J. Pirhonen Oy | Transport & logistics | 2016 |
| JA-Kon Oy | Real estate | 2021 |
| JIT Oy | Real estate | 2025 |
| JKRT-Kone Avoin yhtiö | Construction | 2012 |
| JM Hautajoki Oy | Construction | 2014 |
| JP private capital oy | Wholesale & retail | 2025 |
| JR-Jiirix Oy | Manufacturing | 2013 |
| JST Prosteel Oy | Manufacturing | 2021 |
| Jokiranta Group Oy | Agriculture & fishing | 2019 |
| Jukka Saari Oy | Transport & logistics | 2020 |
| Juniper Arms Oy | Hospitality | 2001 |
| Junotec Ky | Manufacturing | 2009 |
| Justitus International Oy | Financial services | 2016 |
| Juustoportti Kärsämäki Oy | Hospitality | 2017 |
| K-Huoltopalvelut ky | Administrative & support | 2018 |
| KK one Oy | Construction | 2002 |
| Kone Luo-Ti OY | Construction | 2013 |
| KT Deal Oy | Financial services | 2021 |
| Kaino Vierimaan Kukka- ja Hautaustoimisto Ky | | 1990 |
| Kangaskokko Oy | Wholesale & retail | 1982 |
| Kantohake LTH OY | Agriculture & fishing | 2008 |
| Kattilakosken kulttuuriosuuskunta | Arts & recreation | 2012 |
| Keskipisteen Jakelu Ky | Professional & scientific | 2003 |
| Keträlän Murske Oy | Construction | 2002 |
| Kiinteistö Oy Karjan | Real estate | 1996 |
| Kiinteistö Oy Korjaamo Tiko | Real estate | 1989 |
| Kiinteistö Oy Kyllöset | Real estate | 2010 |
| Kiinteistö Oy Kärsämäen Expertti | Real estate | 2004 |
| Kiinteistö Oy Kärsämäen Meijeri | Real estate | 2009 |
| Kiinteistö Oy Kärsämäen Taitotalo | Real estate | 2023 |
| Kiinteistö Oy Tappisarvi | Arts & recreation | 1992 |
| Kiinteistöpäivystys Mikkola Oy | Administrative & support | 2011 |
| Kivelä Business Consulting Oy | Professional & scientific | 2021 |
| KiviHyvölä Oy | Mining & quarrying | 2016 |
| Kone Vision Oy | Agriculture & fishing | 2022 |
| Kone-Falco Oy | Transport & logistics | 2007 |
| Konehaapala Oy | Mining & quarrying | 2005 |
| Konejuko Oy | Administrative & support | 2024 |
| Konepalvelu Honkala Oy | Construction | 2001 |
| Konepalvelu JK Oy | Agriculture & fishing | 2002 |
| Konepalvelu KVM avoin yhtiö | Construction | 2018 |
| Konepalvelu Laitila Oy | Administrative & support | 2002 |
| Koneselkä Oy | Wholesale & retail | 1990 |
| Konesilta Oy | Wholesale & retail | 2001 |
| Koneurakointi Ahola Avoin Yhtiö | Construction | 2001 |
| Kotirannan vesiosuuskunta | Water & waste | 1968 |
| Kuljetus Jarski Oy | Transport & logistics | 2017 |
| Kuljetus Ojalehto Oy | Transport & logistics | 1999 |
| Kuljetus Sarivaara Oy | Transport & logistics | 2000 |
| Kärsämäen Asunnot Oy | Real estate | 2004 |
| Kärsämäen Biokaasu Oy | Energy | 2022 |
| Kärsämäen Puunkorjuu Oy | Agriculture & fishing | 1990 |
| Kärsämäen Tekstiilitalo Oy | Real estate | 2009 |
| Kärsämäen Teollisuuskiinteistöt Oy | Real estate | 2003 |
| Kärsämäen Vesihuolto Oy | Water & waste | 1963 |
| LTL Konegroup Oy | Construction | 2021 |
| LVI Marcus Baas Oy | Construction | 2024 |
| Lakehead Oy | Professional & scientific | 2017 |
| Lumona Media Oy | Information & communication | 2020 |
| Luonua Oy | Agriculture & fishing | 2020 |
| Luonuanojan vesiosuuskunta | Water & waste | 2022 |
| Lypsy Oy | Wholesale & retail | 2017 |
| Lystilän Tila Oy | Agriculture & fishing | 2019 |
| MES-Area Oy | Real estate | 2013 |
| MES-Wood Oy | Wholesale & retail | 2013 |
| Muo-Hit OY | Construction | 2020 |
| Maa- ja metsäkone Lystilä & Tikka Oy | Agriculture & fishing | 2005 |
| Maansiirto H Laitinen Ky | Construction | 2009 |
| Matin Konetyö Oy | Mining & quarrying | 2010 |
| Meea Siivouspalvelu Ky | Administrative & support | 2023 |
| Mektion Oy | Real estate | 2022 |
| Metallityö Hannu Astikainen Oy | Manufacturing | 1998 |
| Metsäenergia Mustola Ky | Agriculture & fishing | 2013 |
| Metsätarmo Oy | Agriculture & fishing | 1998 |
| Metsätyö Venetpalo Oy | Agriculture & fishing | 2024 |
| MiiluPihvi Oy | Agriculture & fishing | 2018 |
| Mother & Sons Oy | Professional & scientific | 2024 |