| Kiinteistö PNMS OY | Real estate | 2026 |
| Kiinteistöosakeyhtiö Alaranta | Real estate | 2007 |
| Kiinteistöosakeyhtiö Luoston Väärtin Kammi | Real estate | 2005 |
| Kiirus Oy | Real estate | 1992 |
| Kilopuuvaara Oy | Real estate | 2005 |
| Kirjakauppa Pukstaavi Ky | Wholesale & retail | 2006 |
| Kitisen Saha Oy | Manufacturing | 1988 |
| Kitniemi Oy | Real estate | 1992 |
| Kiveliön Kala Ky | Wholesale & retail | 1983 |
| KoPiT, Korvasen Pihatuotteet Oy | Construction | 2022 |
| Kommattivaara Ky | Administrative & support | 1987 |
| Kone Annala Oy | Agriculture & fishing | 1990 |
| Kone ja Kuljetus Heikkinen Avoin yhtiö | Transport & logistics | 1981 |
| KoneVasara Group Oy | Real estate | 2023 |
| KoneVasara Oy | Wholesale & retail | 2011 |
| Kotaluoto Oy | Other services | 2026 |
| Kuivilan Hautaustoimisto Oy | Other services | 2024 |
| Kukkakauppa Ruusunmarja Oy | Wholesale & retail | 2015 |
| Kuljetusliike Palo Oy | Transport & logistics | 1992 |
| Kuljetusliike Pertti Tervo Oy | Transport & logistics | 1996 |
| Lapin Kodintekniikka OY | Wholesale & retail | 2005 |
| LVI Halonen Oy | Construction | 2025 |
| Lapin Kiinteistötekniikka Oy | Real estate | 2022 |
| Lapin Koneapu Oy | Construction | 2025 |
| Lapin Mainospalvelu Oy | Professional & scientific | 2024 |
| Lapin Putkityö OY | Construction | 2025 |
| Lapin Sähkö ja Turva Oy | Construction | 1993 |
| Lapin Talotekniikka Oy | Construction | 2011 |
| Lapin Toimistotieto Oy | Wholesale & retail | 1986 |
| Lapin tarvekiinteistöt Oy | Real estate | 2024 |
| Lapland auto diagnostics & service Oy | Other services | 2024 |
| Lappforest Ky | Agriculture & fishing | 2008 |
| Larcon Oy | Professional & scientific | 1989 |
| Lasi ja Kaluste Rautio Oy | Construction | 2017 |
| Lasitusliike Rautio Oy | Construction | 1984 |
| Lasso Glume Oy | Professional & scientific | 2005 |
| Leppäjärvi Group Oy | Administrative & support | 2017 |
| Liftmaster Finland Oy | Professional & scientific | 2005 |
| Loito Oy | Arts & recreation | 2021 |
| Loma-Räkki Oy | Real estate | 1989 |
| Luosto Creative Oy | Professional & scientific | 2021 |
| Luosto Rentals Oy | Hospitality | 2021 |
| LuostoLiving Holiday Homes Oy | Hospitality | 2024 |
| Luoston Tähtimaja Oy | Real estate | 1991 |
| Lusin Metsätila Oy | Agriculture & fishing | 2011 |
| Läikähdys Oy | Education | 2026 |
| M&M Nestori Oy | Administrative & support | 2025 |
| M. Hannula ky | Transport & logistics | 1983 |
| Marviko OY | Administrative & support | 2024 |
| Maanrakennus Joni Koponen Oy | Construction | 2024 |
| Magga Oy | Wholesale & retail | 2006 |
| Medicoplast Oy | Manufacturing | 1990 |
| Meeski Oy | Real estate | 1991 |
| Mervan oy | Hospitality | 2023 |
| Metsuripojat Oy | Agriculture & fishing | 2022 |
| Metsä Väyrynen Oy | Agriculture & fishing | 2012 |
| MetsäAnnala Oy | Professional & scientific | 2024 |
| Metsäkoneurakointi Käkelä Oy | Agriculture & fishing | 2019 |
| Metsämikko Oy | Agriculture & fishing | 1995 |
| Mettoa Oy | Other services | 2022 |
| Mikon Kauppa Oy | Wholesale & retail | 2012 |
| Mixtion Oy | Construction | 2007 |
| Mokot Oy | Wholesale & retail | 1993 |
| Moskun Mari Oy | Real estate | 2020 |
| Mototappi Oy | Agriculture & fishing | 2009 |
| Myynti ja Palvelu Martti Kaltiokumpu Ky | Wholesale & retail | 1984 |
| Mäcklenni Oy | Professional & scientific | 1989 |
| Niesta Catering Oy | Hospitality | 2007 |
| Nilijoen Erä ja Loma Oy | Hospitality | 1996 |
| Nilimella Oy | Administrative & support | 2004 |
| Norda ARC Oy | Construction | 2026 |
| NorthSafe Oy | Manufacturing | 2015 |
| Northern Style Oy | Construction | 2005 |
| Nosturi- ja Kuljetuspalvelu Kuivila Oy | Transport & logistics | 2020 |
| O.Särkelä Oy | Transport & logistics | 1975 |
| OR Music Osuuskunta | Arts & recreation | 2009 |
| Oikeaturva Oy | Financial services | 2018 |
| Omni Corp Oy | Wholesale & retail | 2023 |
| Osuuskunta Sompion Tähti | Health & social care | 2012 |
| Oy Maggum Ltd | Wholesale & retail | 1996 |
| PERSOK Oy | Real estate | 1995 |
| PU Roadvie Oy | Transport & logistics | 2012 |
| Pekka I. Torvinen Ky | Manufacturing | 2013 |
| Pekka Junttila Oy | Transport & logistics | 1985 |
| Peltisepänliike Kumpula Oy | Construction | 2025 |
| Pertti Lukkari Ky | | 1978 |
| Peurasuvannon Lomakylä Oy | Real estate | 2015 |
| Pienkonekorjaamo P. Kemppainen Oy | Manufacturing | 2005 |
| Pirita Design Oy | Manufacturing | 1998 |
| Pohjantähti Pizza Oy | Hospitality | 2025 |
| Pohjois-Kalotin Finanssiedustus Ky | Financial services | 2002 |
| Pohjois-Lapin Ruoka Oy | Hospitality | 2022 |
| Pohjolan Kivirakentajat Oy | Construction | 2009 |
| Pohjäntähti Pizza oy | Hospitality | 2022 |
| Poikone Oy | Manufacturing | 2025 |
| Polar Gym Oy | Arts & recreation | 1995 |
| PolarTalk Oy | Health & social care | 2015 |
| Polarmurska Oy | Manufacturing | 1992 |
| Pullapaikka ky | Manufacturing | 1989 |
| Punainen Ovi Oy | Wholesale & retail | 1996 |