| Finnamie Oy | Helsinki | 2024 |
| Finnas Palvelut Oy | Vantaa | 2010 |
| Finnature Oy Ltd | Muhos | 1999 |
| Finncontainers Oy Ltd | Helsinki | 1996 |
| Finncore Metals Oy | Helsinki | 2025 |
| Finneducation Explorer Oy | Hämeenkyrö | 2023 |
| Finnest Consult Oy | Vantaa | 2018 |
| Finnfabrik Oy | Kuopio | 2020 |
| Finngate Tours OY | Vantaa | 2017 |
| Finnhuolto Oy | Akaa | 2014 |
| FinniGo Career and Solutions Oy | Vantaa | 2025 |
| Finnish Cleaning Systems Oy | Sauvo | 2020 |
| Finnish Education Exchange Agent Silta Oy | Hämeenlinna | 2025 |
| Finnish Gulf Travels Oy Ab | Kalkkiranta | 2026 |
| Finnish Incrementum Funding Oy | Säkylä | 2021 |
| Finnish NGO Center Oy | Mikkeli | 2008 |
| Finnish Partners Oy | Vanhalinna | 2020 |
| Finnish Restaurant & Event Security Oy | Kämmenniemi | 2024 |
| Finnish Safety Consulting Oy | Osoite Tuntematon | 2011 |
| Finnish Staff Office Oy Pori | Pori | 2001 |
| Finnish Travel Services Oy | Espoo | 1999 |
| Finnish iGaming Events Oy | Espoo | 2023 |
| Finnish-China International Business Oy | Helsinki | 2018 |
| Finnkonttori oy | Kerava | 2020 |
| Finnlava Oy | Laukaa | 2025 |
| Finnmek Suomi Oy | Kerava | 2011 |
| Finnmetko Oy | Helsinki | 1989 |
| Finno Rent Oy | Pirkkala | 2021 |
| Finnofit Oy | Helsinki | 2022 |
| Finnorse Oy | Tampere | 2025 |
| Finnra Network Oy | Oulu | 2026 |
| Finnsiirto Oy | Lieto | 1989 |
| Finntation Oy | Vantaa | 2024 |
| Finntrek ky | Juva | 2022 |
| Finntres Oy | Porvoo | 2021 |
| Finori Oy | Helsinki | 2015 |
| Finovart Oy | Espoo | 2025 |
| Finowest Oy | Helsinki | 2012 |
| Finsaex Oy | Huopanankoski | 2010 |
| Finsafe Turvapalvelut Oy | Tampere | 2009 |
| Finsense Oy | Oulu | 2015 |
| Finsigma Holding Oy | Helsinki | 2017 |
| Finska Henkilöstöpalvelut Oy | Espoo | 2020 |
| Finskilly Oy | Espoo | 2025 |
| Finstydi Oy | Helsinki | 2020 |
| Fint på Åland Ab | Mariehamn | 2013 |
| Fintecgrate Ltd Oy | Helsinki | 2019 |
| Fintele Oy | Helsinki | 2019 |
| Finteston Oy | Helsinki | 2019 |
| Fintom Services Oy | Naantali | 2017 |
| Finton Kiinteistöpalvelut Oy | Helsinki | 2020 |
| Fintrasta oy Ltd | Helsinki | 2023 |
| Finuo Group Oy | Helsinki | 2024 |
| Finveritas oy | Haukivuori | 2024 |
| Finvestment Yachts Oy | Osoite Tuntematon | 1996 |
| Finzer Oy | Kerava | 2019 |
| Fiops Oy | Helsinki | 2024 |
| Fiplace Oy | Lappeenranta | 2024 |
| Firaabelihomma Oy | Helsinki | 2024 |
| Firawork Ab | Tähtelä | 2014 |
| FireSea Equipment Oy | Turku | 2020 |
| FireSec Oy | Tampere | 2019 |
| Fireenex Oy | Otalampi | 2019 |
| Firefighter ventures oy | Otalampi | 2025 |
| Firevex Oy | Helsinki | 2020 |
| Firma TR Ab | Hammarland | 2019 |
| Firmapaja Ky | Ylöjärvi | 2020 |
| Firmor Henkilöstövuokraus Oy | Kemi | 2022 |
| First Eye Events Oy | Helsinki | 2025 |
| First Eye Group Oy | Helsinki | 2020 |
| First Flow Oy | Pori | 2019 |
| First Rent A Car Finland Oy Ab | Vantaa | 1988 |
| FirstOne Oy | Helsinki | 2009 |
| Firstdown Ky | Hollola | 2021 |
| Fisafe Oy | Vantaa | 2024 |
| Fish & Trail Finland Oy | Hyvinkää | 2008 |
| Fish Deli Palvelukonsepti Oy | Mikkeli | 2003 |
| Fish Devil Oy | Nurmijärvi | 2021 |
| FishBum Travel Ky | Levanto | 2012 |
| Fishgu Oy | Sirkka | 2020 |
| Fishing Lords Oy | Porvoo | 2002 |
| Fishkitchen Oy | Kirkkonummi | 2019 |
| Fishmaster Finland Oy | Raisio | 1991 |
| Fishroom Oy | Helsinki | 2018 |
| Fishventures Oy | Kotka | 2008 |
| Fisigma Holding Oy | Helsinki | 2017 |
| Fisk Consulting Oy | Helsinki | 2022 |
| Fiskars SC Finland Oy Ab | Espoo | 2025 |
| Fit Capital Oy | Seinäjoki | 2023 |
| Fit Escapes Oy | Piikkiö | 2020 |
| Five Service Oy | Turku | 2026 |
| Five Star Kiinteistöpalvelut Oy | Espoo | 2023 |
| Fives Up Oy | Helsinki | 2024 |
| Fix & Trix Oy Ab | Vöyri | 2023 |
| FixHour Oy | Porvoo | 2026 |
| Fixday oy | Helsinki | 2026 |
| Fixentra Oy | Kangasala | 2026 |
| Fixer Solutions Oy | Lahti | 2024 |
| Fixi-Vallut Oy | Tampere | 2022 |
| Fixikotti Oy | Imatra | 2025 |