Twenty teams compete in the league: the top 16 teams from the previous season and four teams promoted from the
Série B.
Coritiba became the first club to be promoted on 15 November 2025, after a 0–0 home draw against
Athletic-MG.
Athletico Paranaense,
Chapecoense and
Remo all achieved promotion in the last round, on 23 November. Athletico Paranaense and Coritiba returned to Série A after
one and
two seasons, respectively, Chapecoense returned to the top flight after a
four-year absence, and Remo returned to the top flight after a
32-year absence.
Number of teams by state Stadiums and locations ==Personnel and kits==