The Top 10 is run by Federazione Italiana Rugby (FIR) and is contested by 10 teams as of the 2019–2020 season, following the Italian federation's decision to name Peroni as the official partner of the Top10 competition.

Aironi and Benetton Treviso began competing in the league now known as Pro14 in the 2010–11 season, and took both Italian places in the Heineken Cup.

Owing to financial problems, the FIR revoked Aironi's professional licence after the 2011–12 season; that team was replaced in Pro12 by the FIR-operated Zebre.

[2] From 2023-24 season, competition is going to a reduction of teams, from 10 to 9 (with the leak of Calvisano), and 8 from 2024-25 with also the come back of name in Serie A Elite.

[7] The two teams were intended to offer Italian qualified players a higher standard of rugby to hone their skills.

On 18 July 2009 it was announced that the two Magners League teams would be the newly formed Aironi, based in Viadana, and "Praetorians Roma", from the capital.

Praetorians Roma were nominated in the first round but failed to meet the criteria set down by the evaluators and Benetton Treviso took their place.