Serie B champions and promotions since its establishment, including the competition under previous names, are as follows:
| Season | Winners | Eventual other promotions |
|---|---|---|
| 1922–23 | (A.S.D. Junior Biellese Libertas) | |
| 1923–24 | Derthona | A.C. Reggiana 1919 andAssociazione Mantovana del Calcio |
| 1924–25 | Udinese Calcio | Parma Foot Ball Club |
| 1925–26 | none |
| Season | Winners | Eventual other promotions |
|---|---|---|
| 1926–27 | Novara | Pro Patria,Reggiana,Lazio |
| 1927–28 | Atalanta Bergamasca Calcio | A.S.D. Junior Biellese Libertas,U.S. Pistoiese 1921,A.S. Bari andVenezia,Fiumana,Triestina,Legnano,Prato,Fiorentina |