Refounded in 1945 following the end of World War II, they resumed from Serie B, being however relegated immediately to Serie C. The club played in the minor leagues of Italian football ever since.

However, the team did participate in the Serie D playoffs but failed to qualify for the group stage of the tournament.

In the Serie D 2008–09 season, Biellese was placed first in Girone A and has won direct promotion to Lega Pro Seconda Divisione, but has decided to self-relegate to Eccellenza classifying in the season 2009–10, 11th.

In summer 2010, two minor local clubs: have decided to merge, for take the place of the old A.S. Biellese 1902, to form A.S.D.

Libertas Biella Cossato and has played so always in Promozione Piemonte group A who has won and thus was promoted to Eccellenza Piedmont and Aosta Valley.