10-13 teams from Bulgaria, Israel, Kosovo, Montenegro and North Macedonia will participate in the competition.

Peja will be drawn into a group with two teams from North Macedonia due to traveling schedule.

[1][5] During September, the league management announced the addition of two teams to the first round.

[6][7] On October 6, the league management decided to take Peja out of the tournament since Peja refused to confirm the competition's official schedule as well as fulfill all their financial obligations towards the league in the deadlines set.

[2] On 26 November, The Balkan International Basketball League management decided to take Kumanovo 2009 out of the competition due to its inability to fulfill its obligations.