| Royalteq OY | Financial services | 2011 |
| RPM Rakenne Oy | Construction | 2021 |
| RS-Hammaslaboratorio Oy | Manufacturing | 1989 |
| RT Flosheim Oy | Construction | 2024 |
| RTB Investment Oy | Real estate | 2019 |
| RTS Trading Ab | Construction | 2018 |
| RTV-Huolto, Kunnari & Tapio | Other services | 1994 |
| RVP Talotekniikka Oy | Construction | 2017 |
| RXT Company Oy | Financial services | 2022 |
| RY Tuplasiivous Oy | Administrative & support | 2021 |
| Ra-taikurit Oy | Administrative & support | 2023 |
| RaMek Oy | Construction | 2023 |
| Raahen Alu Oy | Wholesale & retail | 1992 |
| Raaka-Rakennus Oy | Construction | 2020 |
| Rabi Oy | Wholesale & retail | 2020 |
| Rabonia Oy | Information & communication | 2019 |
| Radcan Oy | Administrative & support | 2017 |
| Raffaello Oy | Wholesale & retail | 1991 |
| Rahoitusneuvonta Jast Oy ja Kumpp. | | 1989 |
| Railo Brewing Oy | Manufacturing | 2020 |
| Rainbow Children's Nursery Oy | Education | 2021 |
| Raint Oy | Information & communication | 2018 |
| Raision Palvelucaravan oy | Administrative & support | 2020 |
| Raitti Group Oy | Hospitality | 2021 |
| Rajatorpan Kirpputori Oy | Other services | 2020 |
| Rakennus HVE OY | Construction | 2021 |
| Rakennus Haavisto Oy | Real estate | 2015 |
| Rakennus J Rutonen KY | Construction | 2012 |
| Rakennus K. Allas Oy | Construction | 2019 |
| Rakennus V&V Ky | Construction | 2012 |
| Rakennusakatemia Oy | Education | 2022 |
| Rakennusapu UV Ky | Construction | 2009 |
| Rakennusinsinööritoimisto Projektikolmio Oy | Professional & scientific | 2012 |
| Rakennuskonsultointi Vondas Oy | Construction | 2019 |
| Rakennusliike Alev Oy | Construction | 2004 |
| Rakennusliike CDR Oy | Construction | 1999 |
| Rakennusliike Dora Oy | Construction | 2022 |
| Rakennusliike Eerola & Kumppanit Oy | Construction | 2004 |
| Rakennusliike Fenix Oy | Construction | 2021 |
| Rakennusliike Hopeala Ky | Construction | 1983 |
| Rakennusliike Juha Rissanen Oy | Construction | 2012 |
| Rakennusliike Kuller Oy | Construction | 2020 |
| Rakennusliike MEKU Oy | Construction | 2022 |
| Rakennusliike Packalén Oy | Construction | 2022 |
| Rakennusliike Petri Hietanen Oy | Real estate | 2020 |
| Rakennusliike Popa & Muntean Ltd Oy | Construction | 2019 |
| Rakennusliike Porin Pölli ja Pökkelö Oy | Construction | 2020 |
| Rakennusliike Rand & Kandelin Oy | Construction | 2011 |
| Rakennusliike T Holopainen Ky | Construction | 1976 |
| Rakennuspalvelu Erkki Luukkonen Oy | Construction | 2002 |
| Rakennuspalvelu Ratik Oy | Construction | 2007 |
| Rakennuspalvelu TopiFix Oy | Construction | 2020 |
| Rakennusriimi Oy | Construction | 2007 |
| Rakennustoimisto MT Profit Oy | Construction | 2019 |
| Rakennustoimisto Tripla-V Oy | Construction | 2021 |
| Rakennuttajapalvelu Tauno Mäki Oy | Real estate | 1992 |
| Rakentaminen on matematiikkaa Oy | Construction | 2022 |
| Rakkaab Oy | Administrative & support | 2021 |
| Ralitek Finland Oy | Construction | 2016 |
| Ramaco Oy | Wholesale & retail | 1988 |
| Ramola Oy | Health & social care | 2020 |
| Randy Management Oy | Information & communication | 2023 |
| Rannikkoliikenne Rytkölä Ky | Transport & logistics | 1983 |
| Rannikon Kalatukku Oy | Agriculture & fishing | 2014 |
| Rantsubaari Oy | Hospitality | 2023 |
| Rapakkojenkallio Oy | Other services | 2021 |
| Rarlon Oy | Hospitality | 2022 |
| Rasaaravintola OY | Hospitality | 2023 |
| Rasyomed Health Information Systems Oy | Professional & scientific | 2024 |
| Raudoitustyö Kolari Oy | Construction | 2022 |
| Raudoitustyö Nieminen Oy | Construction | 2022 |
| Rauhan Rakennuspalvelu Oy | Construction | 2019 |
| Rauhassa Oy | Health & social care | 2021 |
| Rauman Elteknik Oy | Wholesale & retail | 2024 |
| Rauman Kiinteistömarkkinointi Oy | Real estate | 2005 |
| RautaRitari Oy | Wholesale & retail | 2022 |
| Rautariihi Oy | Wholesale & retail | 1989 |
| Rautu Corporation Oy | Information & communication | 2008 |
| Ravintola DDK Oy | Hospitality | 2022 |
| Ravintola Etappi Oulu Oy | Hospitality | 2022 |
| Ravintola Flamma Oy | Hospitality | 2019 |
| Ravintola KNS Oy | Hospitality | 2022 |
| Ravintola Viila Oy | Hospitality | 2017 |
| Ravintola Villiviini Oy | Hospitality | 2018 |
| Ravintola-Konditoria Ruska Oy | Hospitality | 2017 |
| Razan Style Oy | Transport & logistics | 2022 |
| Razor King Oy | Other services | 2022 |
| ReUsell Oy | Wholesale & retail | 2023 |
| Reaktion Team Oy | Arts & recreation | 2019 |
| RealWorks Oy | Administrative & support | 2019 |
| Realitybend Oy | Other services | 2024 |
| Recry Oy | Administrative & support | 2020 |
| Red Box Selfie Oy | Information & communication | 2019 |
| Red Bridge Capital (Finland) Oy | Financial services | 2018 |
| Red Creative Oy | Professional & scientific | 2021 |
| Red Fox Partners Oy | Professional & scientific | 2020 |
| Red Group Oy | Hospitality | 2018 |
| Red-Pro Oy | Real estate | 2022 |
| Redfix Oy | Wholesale & retail | 2020 |
| Redinex Oy | Construction | 2023 |