Isamaa saw a rise in support in September, ERR's aggregate party ratings show. Support for other parties plateaued.
ERR aggregates the polling results of Norstat, Kantar Emor and Turu-uuringut AS as all companies use different methods of polling.
Aggregated, Reform has 26 percent, EKRE 23 percent, Center 17 percent, Eesti 200 15 percent, the Social Democrats 8 percent, Isamaa 7 percent, the Greens 3 percent and TULE 1 percent.
Isamaa's rating rose 2 percent, while most other parties rose or dropped by 1 percent. Reform, the Greens and TULE stayed the same.
Editor: Helen Wright