Our Firm

Andrea De Matteis is the founding partner of De Matteis Law.

Andrea is a thought leader in payments regulation and contributes to the advancement of the payment industry as a trusted counsel, writer, and advocate.

Andrea has also been representing clients since 1996 in antitrust cases before the Italian Competition Authority and the European Commission.

Prior to founding De Matteis Law, Andrea headed for five years the Antitrust team at Labruna Mazziotti Segni, a major Italian banking and corporate law firm.

Previously, he practiced for ten years in Brussels as a Managing Associate at Linklaters, as an Officer at the European Commission (DG COMP), and as an Associate at Wilmer-Hale.

EXPERTISE

• Payment Services Directives (PSD2 and draft PSD3) and draft Payment Services Regulation (PSR)
• Strong Customer Authentication (SCA)
• Instant Payments
• Digital Operational Resilience Act (DORA)
• Markets in Crypto-Assets Regulation (MiCA)
• Digital euro
• Antitrust in EU regulated industries

EDUCATION

• LL.M. from the Ney York University School of Law (1996)
• J.D. in Law from the University of Florence (1995)

LANGUAGES
Italian (native), English, French, Spanish (basic)

HONORS & AWARDS

Leading Individual – Competition Law Chambers & Partners 2015
“Andrea De Matteis of De Matteis Studio Legale focuses on the areas of electronic payments and data protection within competition law, and is increasingly recognised for his robust litigation skills: he is extremely effective in court matters and litigation – he’s unafraid to go to court and has been successful on numerous occasions.”

Recommended Italian Lawyer – Legal 500 2015
“De Matteis Studio Legale focuses on the emerging banking law sector of mobile and electronic payments.The team represented MasterCard and its subsidiaries during an investigation launched by the Italian Competition Authority into domestic interchange fees. Founding Partner Andrea De Matteis in Rome is highly rated.”

Award Winner at the Finance & Tax Awards – LegalCommunity 2015
“He has only recently founded his boutique law firm. In this sector he has matured a profound specialization in the field of mobile and electronic payments in addition to e-finance and finance technology.”

Recognised for Italian Banking Law – IFLR1000 2014
De Matteis Studio Legale has been been recognised for its work in the field of Italian Banking Law.

Leading Individual – Competition Law – Chambers & Partners 2014
“Andrea De Matteis of DE MATTEIS Studio Legale is widely recognised for his work with leading international clients and is described by commentators as ‘entrepreneurial’ and ‘very good at co-ordinating a deal’.”

Up and Coming Individual – Competition Law – Chambers & Partners 2013
“Andrea De Matteis of De Matteis Studio Legale is noted for his work in this field, with commentators highlighting the caliber of his clientele.”

Up and Coming Individual – Competition Law – Chambers & Partners 2012
“Following the opening of De Matteis Studio Legale, Andrea De Matteis continues to counsel key client MasterCard on a variety of antitrust matters.”

Up and Coming Individual – Competition Law – Chambers & Partners 2011
“With extensive experience gained from a decade at a major international firm in Brussels, Andrea De Matteis recently established his own boutique.”

CONTACT
e-mail: andrea@dematteislex.com

Simone has been advising clients since 2009 on a wide range of EU payments and cybersecurity regulations.

He has best-in-class expertise on PSD2 (and upcoming PSR/PSD3), DORA, Open Banking, IFR, AML, and other EU regulatory initiatives in the electronic and digital payments space.

He also represented clients in antitrust cases before the Italian Competition Authority, including several in-depth investigations.

Prior to joining De Matteis Law in 2011, Simone practiced antitrust and corporate law as associate of Labruna Mazziotti Segni, a major Italian banking and corporate law firm.

EXPERTISE

• Second Payment Services Directive (PSD2), and upcoming Payments Services Regulation (PSR) and Third Payment Services Directive (PSD3)
• Strong Customer Authentication (SCA)
• Digital Operational Resilience Act (DORA)
• Interchange Fee Regulation (IFR)
• Anti-Money Laundering (AML)
• Commercial law in payments
• Antitrust in EU regulated industries

EDUCATION

• J.D. in Law from the University of Rome Tor Vergata (2009)

LANGUAGES
Italian (native), English

HONORS & AWARDS
Award to excellence from the University of Rome Tor Vergata (2010, 2009 and 2008)

CONTACT
e-mail: simone@dematteislex.com

Pierluigi specializes in EU payment and crypto-asset regulations. He provides legal and strategic advice on MICA, Digital Euro Regulation, Instant Payments, Digital Identity, DMA and antitrust issues in EU regulated sectors.

He also represented clients in antitrust cases before the Italian Competition Authority, including several in-depth investigations.

Prior to joining De Matteis Law in 2019, Pierluigi trained as a research assistant in EU law at the University of Leicester (2015). He was visiting researcher at the Brussels School of International Studies (2017) and the University of Amsterdam (2018).

EXPERTISE

• Markets in Crypto-Assets Regulation (MiCA)
• Digital euro
• eIDAS and digital identity
• Instant Payments
• Second Payment Services Directive (PSD2)
• Interchange Fee Regulation (IFR)
• PISA oversight
• Antitrust in EU regulated industries

EDUCATION

• Ph.D. in Law from Scuola Superiore Sant’Anna (2019)
• J.D. in Law from the University of Pisa (2014)

LANGUAGES
Italian (native), English, Spanish, French (basic)

CONTACT
e-mail: pierluigi@dematteislex.com

Denise provides legal advice in EU payment regulations and handles complaints in relation to payment fraud disputes. She reviews contractual documents and T&Cs in relation to products and services offered by Clients.

Before joining De Matteis Law in 2022, she was a trainee lawyer at the Italian State Attorney General’s Office and a judicial trainee at the Court of Rome.

Previously, she was an intern at the Italian Ministry of the Interior (2018).

EXPERTISE

• Contract law in payments
• Civil law

EDUCATION

• J.D. in Law (International Program) from LUMSA University of Rome (2020)

LANGUAGES
Italian (native), Spanish (native), English, French (basic)

CONTACT
Email: denise@dematteislex.com

Greta serves as Office Manager at De Matteis Law.

Prior to joining De Matteis Law in 2024, Greta worked for four years as Administration and Legal Manager at an international architectural firm based in Rome.

Previously, she practiced for seven years as a lawyer specialized in criminal law.

EDUCATION

• J.D. in Law form LUISS Guido Carli University in Rome (2008)

LANGUAGES
Italian (native), English, French (basic)

CONTACT
Email: greta@dematteislex.com