| PMS Basketball | — | Moncalieri | — | — |
| Poderosa Basket Montegranaro | — | Montegranaro | 1993 | — |
| Polisportiva Cervia Milano Marittima | — | — | — | — |
| Polisportiva Dinamo | — | — | — | — |
| Polisportiva Dinamo Lab | — | — | — | — |
| Polisportiva Folgore Nocera | — | — | — | — |
| Portland Trail Blazers | National Basketball Association | Portland | 1970 | Veterans Memorial Coliseum, Moda Center |
| Potenza 84 | — | Potenza | — | — |
| Progresso Castel Maggiore | — | Castel Maggiore | — | — |
| Real Sebastiani Rieti | Serie A2 | Rieti | 2020 | — |
| Reyer Venezia Mestre Femminile | — | Venecia | 1925 | — |
| Riva del Garda Basket | — | Riva del Garda | — | — |
| Riviera Vado Basket | — | — | — | — |
| Robur Basket Osimo | — | Osimo | — | — |
| Robur et Fides Varese | — | Varese | — | — |
| Roseto Sharks | — | Roseto degli Abruzzi | 1946 | — |
| Rovereto Basket | — | Rovereto | — | — |
| Ruvo di Puglia Basket | — | — | — | — |
| S.S. Basket Napoli | — | Nápoles | 1946 | PalaBarbuto |
| Sacramento Kings | National Basketball Association | Sacramento | 1945 | ARCO Arena I, Power Balance Pavilion, Golden 1 Center, Municipal Auditorium, Kemper 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, CityBank Coliseum |
| San Martino di Lupari | — | — | — | — |
| Santa Marinella Basket | — | — | — | — |
| Scafati Basket | Lega Basket Serie A | Scafati | 1969 | PalaMangano |
| Seattle SuperSonics | — | Washington | 1967 | Kingdome, Climate Pledge Arena, Tacoma Dome |
| Sebastiani Basket Club Rieti | — | — | — | — |
| Sheboygan Redskins | National Basketball Association | Sheboygan | 1938 | Playdium, Sheboygan Municipal Auditorium and Armory |
| Silver Basket Porto Torres | — | Porto Torres | — | — |
| Sisv Viterbo | — | Viterbo | — | — |
| Società Cestistica Mazzini | — | Bolonia | — | — |
| Società Ginnastica Roma | — | — | — | — |
| Società Ginnastica Triestina | — | Trieste | 1930 | — |
| Spider Fabriano | — | — | — | — |
| Sport Club Alcamo | — | Alcamo | — | — |
| St. Louis Hawks | National Basketball Association | — | — | — |
| Starlight Valmadrera | — | — | — | — |
| Teramo Basket | Serie A2 | Teramo | 1973 | PalaScapriano |
| Toronto Maple Leafs | — | — | 22 de noviembre de 1917 | Scotiabank Arena, Mutual Street Arena, Maple Leaf Gardens |
| Toronto Raptors | National Basketball Association | Toronto | 1995 | Rogers Centre, Scotiabank Arena |
| Trapani Shark | Lega Basket Serie A | Trapani | 1964 | — |
| Tresinaro Basket Scandiano | — | — | — | — |
| U.C.C. | — | Casalpusterlengo | 1977 | PalaBanca |
| U.S. Sangiorgese | — | — | — | — |
| Unicar Cesena | — | Cesena | — | — |
| Unione Sportiva Basket Recanati | — | Recanati | 1982 | — |
| Universo Treviso Basket | Lega Basket Serie A | Treviso | 2012 | Palaverde |
| USE Basket Femminile Empoli | — | Empoli | 1912 | — |