About
Antonio is a Senior Transaction Lawyer in Hamburg. Antonio focuses on international arbitration, commercial litigation and Spanish private and commercial law.
He advises cross-border teams on disputes involving energy, antitrust, finance, corporate and post-M&A issues, and regularly applies Spanish-law analysis in complex arbitral and court proceedings. His work covers legal drafting, expert coordination and support at hearings in both institutional and ad hoc arbitration.
Antonio speaks Spanish, English and German.
Additional Information
Supporting a claimant in an investment arbitration against the United Mexican States arising out of measures affecting renewable energy investments.
Representing a Spanish energy company in a Madrid-seated commercial arbitration under the CIMA Rules, involving complex contractual claims governed by Spanish law
Advising on a multi-party corporate dispute involving Spanish-law issues and cross-border litigation strategy


Dr. Antonio Ruiz Arranz
Senior Lawyer
Hamburg Office
Hohe Bleichen 7
Hamburg 20354
Madrid Office
Torre Europa
Paseo de la Castellana, 95
Madrid 28046