The founder of the firm, the lawyer Prof. Mario Cannata, has been a Judge and Public Prosecutor from 1967 to 1980, in Milan and Rome.

Afterwards, having been author of various scientific publications in the field of administrative and currency law, has been appointed as Professor at Federico Secondo University, where he taught civil law.

He has been partner of the Cannata – Amato law firm on 1981 and since 1986 has been an international partner of Arthur Andersen Worldwide Organisation. In 1992 he founded the Cannata Pierallini Law Firm, affiliated on 2001 to the international law firm Coudert Brothers.

On 2009 the Cannata Pierallini law firm having made a spin off of Pierallini law firm, moved his office to Palazzo Bernini .