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Gianni & Origoni

Rosario Zaccà

Rosario Zaccà



  • Corporate. Mergers & Acquisitions

WSG Practice Industries


WSG Leadership

IBA Group

Rosario Zaccà specialises in corporate and commercial law, mergers and acquisitions and private equity, and has significant expertise in joint ventures and multi-jurisdictional transactions. Due to his strong experience in a broad range of corporate and M&A issues, he is frequently asked to represent some of the largest Italian and multinational companies and to handle complex transactions that require a sophisticated approach.

In 2011 he was awarded the ILO Client Choice Award for M&A in Italy.

As Head of the firm’s India Desk, he has extensive experience in assisting Indian companies in their activities in Italy, and Italian companies investing in India.

Responsible Partner for the Milan office from 2010 to 2014, he is currently Co-Managing Partner of the firm.

Rosario has been with the firm since 1994. He spent four years in the firm’s New York office and a semester with a City firm in London, before returning to Milan where he was made partner in 2001. 

After graduating in Law from the University of Catania, he studied common law and the English legal system at City of London Polytechnic and then international law at the Academy of International Law in The Hague.

He is a member of the Italian Bar Association and the International Bar Association, and has rights of audience before the Italian Supreme Court.

He speaks Italian and English.

Bar Admissions

  • MILAN Bar (Italy)


  • University of Catania
  • The Hague Academy of International Law
Areas of Practice

Corporate. Mergers & Acquisitions | India Desk

Professional Career

Significant Accomplishments

1995-1999: Based at the New York offices of Gianni, Origoni, Grippo & Partners.
1992: Practised as foreign lawyer in London.

Professional Associations

Admitted to the Italian Bar; qualified to act before the Supreme Court.
Member of the International Bar Association.

Professional Activities and Experience

1991-1994: Associate, Simmons & Simmong Grippo

COVID-19: Update on Law Decree No. 18 of 17 March 2020 Tax Support Measures
Gianni & Origoni, March 2020

Payments of tax and penalties falling due between 8 March and 31 May 2020 arising out of tax assessments issued by the Italian Tax Authorities, the National Social Security Agency (INPS), the Italian Customs Agency and by Regional and Local Authorities, and any other enforcement claims aimed at collecting tax revenues, must be made in a single instalment by 30 June 2020. Payments made before the issuance of the Decree cannot be reimbursed to the taxpayer...

COVID-19: Health and Safety Protocol
Gianni & Origoni, March 2020

COVID-19: health and safety protocol - Last night the Italian Government and National representatives of employers’ associations and unions have reached an agreement over a COVID-19 health & safety protocol that employers need to implement to ensure the maximum possible protection of their employees against the COVID-19 virus. This protocol is a crucial step to allow business continuity for manufacturing companies and professional service providers...

EU legal Framework on State Aid and Coronavirus: Flexibility in the Enforcement of the Rules
Gianni & Origoni, March 2020

During the press conference of 13 March 2020, Executive Vice-President Margrethe Vestager made a statement regarding the enforcement of EU State aid in connection with measures adopted by Member States to combat the negative repercussions of COVID-19 on the economy...

WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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