| PMS Torino | Liga Italiana de Basquetebol | Turim | 2009 | — |
| Polisportiva Basket Agropoli | — | Agropoli | 1966 | — |
| Polisportiva Dinamo | — | — | — | — |
| Polisportiva Dinamo Lab | — | — | — | — |
| Polisportiva Folgore Nocera | — | — | — | — |
| Portland Trail Blazers | National Basketball Association | Portland | 1970 | Veterans Memorial Coliseum, Moda Center |
| Progresso Castel Maggiore | — | Castel Maggiore | — | — |
| Raggisolaris Faenza | — | Faença | — | — |
| RB Montecatini Terme | — | Montecatini Terme | 1949 | PalaTerme |
| Real Sebastiani Rieti | Serie A2 | Rieti | 2020 | — |
| Reyer Venezia Mestre | Liga Italiana de Basquetebol | Veneza | 1925 | Palasport Taliercio |
| Reyer Venezia Mestre Femminile | — | Veneza | 1925 | — |
| Rinascita Basket Rimini | Serie A2 | Rimini | 1947 | Palasport Flaminio |
| Riviera Vado Basket | — | — | — | — |
| Robur Basket Osimo | — | Osimo | — | — |
| Robur et Fides Varese | — | Varese | — | — |
| Ruvo di Puglia Basket | — | — | — | — |
| Sacramento Kings | National Basketball Association | Sacramento | 1945 | ARCO Arena I, ARCO Arena, Golden 1 Center, Municipal Auditorium, Hy-Vee Arena, Omaha Civic Auditorium, Cincinnati Gardens, Edgerton Park Arena, Blue Cross Arena |
| Salerno Basket 92 | — | — | — | — |
| San Antonio Spurs | National Basketball Association | — | 1967 | Alamodome, Kay Bailey Hutchison Convention Center, HemisFair Arena, Fort Worth Convention Center, Frost Bank Center, Moody Coliseum, Lubbock Municipal Coliseum |
| San Martino di Lupari | — | — | — | — |
| Santa Marinella Basket | — | — | — | — |
| Scafati Basket | Liga Italiana de Basquetebol | Scafati | 1969 | PalaMangano |
| Scaligera Basket Verona | Liga Italiana de Basquetebol | Verona | 1951 | PalaOlimpia |
| Seattle SuperSonics | — | Washington | 1967 | Kingdome, Climate Pledge Arena, Tacoma Dome |
| Sebastiani Basket Club Rieti | — | — | — | — |
| Sheboygan Red Skins | National Basketball Association | Sheboygan | 1938 | Playdium, Sheboygan Municipal Auditorium and Armory |
| Silver Basket Porto Torres | — | Porto Torres | — | — |
| Sisv Viterbo | — | Viterbo | — | — |
| Societa Veroli Basket | — | Frosinone | 1968 | — |
| Società Ginnastica Triestina | — | Trieste | 1930 | — |
| Spider Fabriano | — | — | — | — |
| Sporting Club Gira | — | Bolonha, Ozzano dell'Emilia | 1945 | — |
| SS Lazio Basket | — | Roma | 1932 | — |
| St. Louis Hawks | National Basketball Association | — | — | — |
| Starlight Valmadrera | — | — | — | — |
| Stella Azzurra Roma | — | Roma | 1938 | — |
| Sutor Basket Montegranaro | — | Montegranaro | 1947 | Banca Marche Palace |
| Taranto Cras Basket | Serie A1 | Tarento | 1961 | — |
| Thunder Basket Matelica - Fabriano | — | — | — | — |
| Toronto Maple Leafs | — | — | 22 de novembro de 1917 | Scotiabank Arena, Mutual Street Arena, Maple Leaf Gardens |
| Toronto Raptors | National Basketball Association | Toronto | 1995 | Rogers Centre, Scotiabank Arena |
| Trapani Shark | Liga Italiana de Basquetebol | Trápani | 1964 | — |
| Tresinaro Basket Scandiano | — | — | — | — |
| U.S. Sangiorgese | — | — | — | — |
| Umana Venezia | — | — | 1925 | — |
| Unione Cestistica Casalpusterlengo | — | Casalpusterlengo | 1977 | PalaBanca |
| Unione Cestistica Piacentina | — | Piacenza | 2003 | — |