José Ignacio Olleros Izard

Sergio Juárez is a Partner in the Employment Law department of Andersen Tax & Legal at the Madrid office. He previously worked at Olleros Abogados, CMS Albiñana & Suárez de Lezo and Garrigues. Sergio is a specialist in comprehensive legal and employment advice to public and private sector companies (national and international), as well as in litigation in all levels of the social jurisdiction, and in administrative proceedings before the Labour Inspectorate and So...

Licenciado en Ciencias Económicas y Empresariales por la Universidad Complutense de Madrid y Máster por el Instituto de Empresa en Asesoría Fiscal de Empresas. Durante su experiencia en PwC Tax & Legal Services, ha formado parte y ha dirigido el departamento de Integrated Global Solutions, para prestar servicios en fiscalidad internacional y precios de transferencia.

Lawyer, member of the Madrid Bar Association since 1985. He directs the Department of Social economy and Non-Profit Organizations , which offers legal and tax advise to foundations, associations and other third sector entities that work in social assistance, education and international cooperation. He is also a specialist in Tax Law .

Director responsable de asesoramiento en pensiones, PwC España. Cuenta con 30 años de experiencia en los que ha liderado numerosos proyectos en materia de previsión social, tanto a nivel nacional como internacional, enfocados en el diseño y transformación de sistemas de previsión, control de riesgos y buen gobierno, contabilización y auditoría de compromisos por pensiones, asesoramiento en procesos de fusiones y adquisiciones, asesoramie...

Pedro is a partner in the Banking and Capital Markets Group. He has worked in tax for over 30 years, the last 20 of which have been in PwC Madrid. He has focused on the tax advice for multinational clients operating in Spain as well as local clients of the financial industry (banks, saving banks, leasing companies etc.). This work includes advising on corporate tax, withholding taxes and capital gain taxes and the taxation of financial instruments. He has been as well specifically advised to ...

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...

Rafael Manchado Montero is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Rafael Manchado, 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 Manchado is held by other top lawyers in the same geographic and legal practice area.

Ana Álvarez is a lawyer who specialises in the areas of Civil and Procedural Law, Construction, Real Estate and Planning Law and New Technologies. Her duties include providing legal advice both to individuals and to companies, along with the initiation and pursuit of legal actions and the provision of assistance at court hearings. On the urban planning side, she specialises in the study and drafting of reports on the planning conditions that apply to land and its subsequent development...

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.

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...