Iván Sánchez Arbáizar

Efrén Díaz Díaz is a Lawyer and Doctor of Law. Senior Associate at Mas y Calvet Law Firm (Madrid). Head of the Technology and Space Law Areas of the Mas y Calvet Law Firm. Data Protection Officer in Europe in the financial, legal, health, geospatial and educational sectors.Specialist in Administrative, Technological and Geospatial Law, he develops tasks in regulated sectors, technology, foundations, geospatial coordination Cadastre-Property Registry, public and private co...

Socio de PwC Tax & Legal Services, en el año 2000 se incorporó al Departamento de Servicios Fiscales del Sector Financiero. Durante estos años, ha adquirido una amplia experiencia prestando asesoramiento fiscal al sector financiero. Ha participado en multitud de proyectos de asesoramiento fiscal a grandes grupos multinacionales e internacionales del sector financiero, tanto en el ámbito bancario como en el de los mercados de valores y gestión de activos....

Lawyer, member of the Madrid Bar Association since 1997 and also of the Ciudad Real Bar Association since 1994. He brings his vast experience in Criminal Law to our firm, especially in the field of economic crimes . He has represented defendants in numerous high-profile trials in the Audiencia Nacional . He is also professor of Criminal Law and Ethics at Universidad de Navarra, Instituto de Empresa (IE Law School) and the Madrid Bar Association Studies Center. He joint Mas y Calvet law firm i...

José María Álvarez del Manzano is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law. José María, who practices law in Madrid, Spain, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which José María is held by other top lawyers in the same geographic and legal practice area.

Cristina Simón Amián joined the law firm in 2005. A practising lawyer. A graduate of law from the Complutense University of Madrid. Received a diploma at the Madrid Centre for Economic and Taxation Studies (CETE). Cristina specialises in Commercial, Procedural and Insolvency Law. Possessing solid experience in the field of company law, she advises companies from various sectors on the matters that affect them from day to day. Incorporation processes and commercial company develo...

Rafael Ansón Peironcely is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law. Rafael, who practices law in Madrid, Spain, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rafael is held by other top lawyers in the same geographic and legal practice area.

José Conca is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Planning, Public Finance Law and Real Estate Law. José, who practices law in Valencia, Spain, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which José is held by other top lawyers in the same geographic and legal practice area.

Javier Talegón Vázquez is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Javier Talegón, who practices law in Madrid, Spain, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Javier Talegón is held by other top lawyers in the same geographic and legal practice area.

Aitor Veiga Monasterioguren is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Aitor Veiga, who practices law in Madrid, Spain, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Aitor Veiga is held by other top lawyers in the same geographic and legal practice area.

Jesús Conde is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jesús, who practices law in Madrid, Spain, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jesús is held by other top lawyers in the same geographic and legal practice area.