1. Tier in Finland. Matches in 2021 played in the period April – September
| Club | Stadium | Capacity |
|---|---|---|
 HJK | Bolt Arena |  10.770 |
 AC Oulu | Raatin Stadion | 4.392 |
 FC Haka | Tehtaan kenttä |  5.000 |
 FC Honka | Tapiolan N 1 | 4.100 |
 FC Lahti | Kisapuisto | 3.000 |
 KuPS | Savon Sanomat Areena | 5.000 |
 Ilves | Tammelan Stadion |  5.050 |
 FC Inter | Veritas Stadion |  9.372 |
 SJK | OmaSp Stadion | 6.000 |
 IFK Mariehamn | Wiklöf Holding Arena | 3.000 |
 HIFK | Bolt Arena | 10.770 |
 FC KTP | Arto Tolsa Areena | 4.200 |