Beşiktaş signed a sponsorship deal with Gain, a new generation video content platform affiliated with Anahat Holding, for the 2025-26 season.
 
According to sponsorship agreement, Beşiktaş Men's Basketball Team will be known as Beşiktaş Gain and Beşiktaş Akatlar Sports Hall will be known as Beşiktaş Gain Arena during the 2025-26 season. In addition, the name Gain will be featured on the front of Beşiktaş Men's Basketball Team's match jerseys.