Parma and Como sealed promotion to Serie A on Friday after finishing at the top of Serie B, and a third club will join the Italian top flight after the playoffs.
Leaders Parma drew 1-1 with Reggiana to finish with 76 points, while Como, coached by former Arsenal, Barcelona and Chelsea midfielder Cesc Fabregas, ended second with 73 after a draw with Cosenza.
Como, who are returning to the Italian top flight after a 21-year absence, also have former England and Chelsea legend Dennis Wise as their CEO, while Thierry Henry is an investor and a board member.
Venezia, who finished third after losing 2-1 to Spezia, will join Cremonese, Catanzaro, Palermo, Sampdoria and Brescia in the playoffs, which begin on May 17 and culminate in a two-legged final on May 30 and June 2.
Bottom club Lecco will be relegated to Serie C with Feralpisalo and Ascoli, while the playoffs will be held between Bari and Ternana on May 16 and 23.