| Orlando Magic | National Basketball Association | Orlando | 1989 | Amway Arena, Kia Center |
| Pallacanestro Ares Palermo | — | Palermo | — | — |
| Pallacanestro Biella | — | Biella | 1994 | BiellaForum |
| Pallacanestro Brindisi | — | Bríndisi | 1945 | PalaPentassuglia |
| Pallacanestro Chieti | — | Chieti | 1989 | — |
| Pallacanestro Don Bosco Livorno | — | — | — | — |
| Pallacanestro Femminile Costone | — | — | — | — |
| Pallacanestro Ferrara 2011 | — | Ferrara | 2011 | — |
| Pallacanestro Forlì 2015 | Serie A2 | Forlì | 2015 | Unieuro Arena |
| Pallacanestro Livorno | — | Livorno | — | — |
| Pallacanestro Lucca | — | Lucca | — | — |
| Pallacanestro Marsala | — | — | — | — |
| Pallacanestro Milano 1958 | — | Milán | 1957 | — |
| Pallacanestro Olimpia La Spezia | — | La Spezia | 1969 | — |
| Pallacanestro Orzinuovi | — | Orzinuovi | 1964 | — |
| Pallacanestro Patti | — | — | — | — |
| Pallacanestro Pavia | — | Pavía | 1943 | — |
| Pallacanestro Pozzuoli | — | — | — | — |
| Pallacanestro Reggiana | Lega Basket Serie A | Reggio Emilia | 1974 | PalaBigi |
| Pallacanestro Ribera | — | — | 1969 | — |
| Pallacanestro Sant'Antimo | — | Sant'Antimo | 1989 | — |
| Pallacanestro Senigallia | — | Senigallia | — | — |
| Pallacanestro Treviso | Lega Basket Serie A | Treviso | 1954 | Palaverde |
| Pallacanestro Trieste | Lega Basket Serie A | Trieste | 1975 | Palatrieste |
| Pallacanestro Varese | Lega Basket Serie A | Varese | 1945 | PalaWhirlpool |
| Pallacanestro Virtus Cassino | — | Frosinone | 2011 | — |
| Palmares Catania | — | Catania | — | — |
| Partenio Avellino | — | — | — | — |
| PB63 Lady | — | — | 1963 | — |
| PCR Messina | — | Mesina | — | — |
| Perugia Basket | — | — | — | — |
| Pescara Basket | Serie C (Italian men's basketball league) | Pescara | — | PalaElettra |
| Petrarca Armistizio Patavium | — | Padua | 1934 | — |
| PF Umbertide | — | Umbertide | 2008 | — |
| Philadelphia 76ers | National Basketball Association | Filadelfia | 1946 | Xfinity Mobile Arena, Toyota Coliseum, Philadelphia Arena, The Spectrum, Philadelphia Convention Hall and Civic Center, Oncenter War Memorial Arena |
| Phoenix Suns | National Basketball Association | Phoenix | 1968 | Arizona Veterans Memorial Coliseum, Footprint Center |
| PMS Torino | Lega Basket Serie A | Turín | 2009 | — |
| 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 | — | — |
| Raggisolaris Faenza | — | Faenza | — | — |
| Real Sebastiani Rieti | Serie A2 | Rieti | 2020 | — |
| Riva del Garda Basket | — | Riva del Garda | — | — |
| Riviera Vado Basket | — | — | — | — |