 Bianco made the move to Bergamo following the expiration of his contract with Cagliari on 1 July 2009.In his first season with Atalanta, Bianco made 21 league appearance, with 20 of them coming from the starting XI.Despite a close relegation battle towards the end of the 2009–10 campaign, between Livorno, Siena, Atalanta, Chievo, Udinese, and Bologna, his club failed in their efforts to avoid the bad fate.