2008–09 Turkish Basketball League Clubs and Arenas Clubs 2008-2009 Season

| Club | City | Arena | Capacity | Last_Year |
|---|---|---|---|---|
| Aliağa Belediyesispor | İzmir | Enka Sport Hall | 2500 | 2nd ( TB2L ) |
| Antalya BŞB | Antalya | Dilek Sabancı Sport Hall | 2500 | 6th (RS) , QF (Play-off) |
| Bandırma Banvit | Balıkesir | Kara Ali Acar Sport Hall | 2500 | 8th (RS) , QF (Play-off) |
| Beşiktaş Cola Turka | Istanbul | BJK Akatlar Arena | 3500 | 1st (RS) , SF (Play-off) |
| CASA TED Kolejliler | Ankara | TOBB Sport Hall | 1700 | 9th (RS) |
| Darüşşafaka | Istanbul | Ayhan Sahenk Sport Hall | 3500 | 14th (RS) |
| Efes Pilsen | Istanbul | Ayhan Sahenk Sport Hall | 3500 | 2nd (RS) , SF (Play-off) |
| Erdemirspor | Zonguldak | Erdemir Sport Hall | 2250 | Winner ( TB2L ) |