Jorge Martín Losa

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...

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.

Bruno Roca Grau is a top attorney recognized by Best Lawyers in the practice area(s) of International Arbitration. Bruno, 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 Bruno is held by other top lawyers in the same geographic and legal practice area.

Educational background Business Administration and Law Degrees from Universidad Pontificia de Comillas, Madrid (ICADE E-3) LLM from the Centro de Estudios Financieros, Madrid (CEF) Professional experience Jaime has worked with top tier tax advisory firms, such as Cuatrecasas, EY, KPMG, having also lead the tax area of Ontier, and currently standing as tax partner of the Madrid Crowe’s office. He is specialized in tax structuring of cross-border transactions of Spanish and foreign multin...

Raquel Mateos Hernandez is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Raquel Mateos, who practices law in Madrid, Spain, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Raquel Mateos is held by other top lawyers in the same geographic and legal practice area.

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

Labor lawyer and Ph.D. in Law , starting with an internship at Cuatrecasas law firm (BCN office), followed by a first employment contract with Uría Menéndez (BCN office), where he was able to learn in the labor and commercial areas, to finally join the boutique law firm Gutiérrez Arrudi Abogados Laboralistas, in the city of Zaragoza, where he is still practicing law. Likewise, the prestigious law firm 4.0. "Ambar Partners" incorporated him in 2020 to its team as a "Partne...

Pilar París is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Mergers and Acquisitions Law. Pilar, who practices law in Madrid, Spain, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pilar 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.

María Gomes Sousa is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. 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 María is held by other top lawyers in the same geographic and legal practice area.