Alexander Pitts

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...

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...

Jaime Silva is a Partner in the Employment Law and Social Security Department at the Madrid office of Andersen Tax & Legal. He previously worked at Garrigues CMS Albiñana & Suárez de Lezo and Olleros Abogados. Jaime Silva is a specialist in labour litigation and legal advice to companies in public and private sector and he has wide experience in IT industry and the posting of workers abroad. In the academic field, Jaime is lecturer in several programmes about Labour Law ...

Pedro Alonso Rodríguez is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Pedro, 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 Pedro is held by other top lawyers in the same geographic and legal practice area.

Javier Prieto, partner of the Tax Department at Araoz & Rueda since 2011, joined the firm after three years as a partner at the Tax Department at Ramón y Cajal (2008-2011). Prior to joining Ramón y Cajal he worked as an associate in the Tax Department at KPMG Abogados (1999-2002) and then as an associate in the Tax Department at Uría Menéndez (2002-2008). Javier is specialized in: Tax advice arising from national and international M&A transactions (investme...

Juan Manuel Lorenzo Hernando is the managing partner of the firm Lorenzo Hernando Abogados and a practicing attorney with broad experience in both the public and private sectors. He has served as a civil servant in local administration and has been providing legal advice to companies and individuals in Public Law and Real Estate Law since 2006. He is also a university lecturer and has published various articles in specialized Public Law and Real Estate Law journals. In 2021, he was awarded th...

Juan Bolás Alfonso is a top attorney recognized by Best Lawyers in the practice area(s) of Civil Law: General Practice and Real Estate Law. Juan, 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 Juan is held by other top lawyers in the same geographic and legal practice area.

Günter Helbing is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice. Günter, 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 Günter is held by other top lawyers in the same geographic and legal practice area.

Alfredo Aspra Rodríguez is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Alfredo, 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 Alfredo is held by other top lawyers in the same geographic and legal practice area.

Nuria Amarilla is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice. Nuria, 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 Nuria is held by other top lawyers in the same geographic and legal practice area.