Antonio Tomassini is a tax lawyer, Partner, Chairman of the Client Committee and member of the global tax committee at DLA Piper. PhD and adjunct Professor in tax law, Coordinator of the scientific committee at STEP Italy and member of the scientific committee at Corriere tributario.

Chairman of the Board of auditors and OdV at BMW and Alphabet Italy.

Antonio specialises in international taxation, tax litigation, as well as investment funds, wealth planning and criminal tax law. He assists clients in international taxation and M&A matters other than before tax, European, Supreme Courts and tax authorities within investigation, settlements and rulings. Previously, he served as an officer for the Italian Tax Authorities, dealing with tax inspections and criminal investigations for taxation, customs and money laundering matters.

He is one of the major contributors for tax topics of the Italian "Il Sole 24 Ore" and author of more than one hundred between monographs and articles for the most renowned tax magazines (including 'Rassegna Tributaria', Rivista di Diritto Tributario', 'Rivista Trimestrale di Diritto Tributario', 'Dialoghi Tributari', 'Corriere Tributario', 'International Tax Review'). In 2022 published a book for Giuffrè on the tax aspects of criptocurrencies, NFT and Metaverse. He is professor and coordinator of the master programs edited by Wolters Kluwer (tax law and criminal tax law), Bocconi (tax law and wealth planning) and Cattolica University (tax law) and spokesman in workshops and seminars.