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Antonio Alonso Ureba

Antonio Alonso Ureba

Partner and General Secretary of Affinitas


  • Government
  • Securities Markets
  • Insurance

WSG Practice Industries


1980. Lawyer on the General Administrative Technical Corps, Madrid Municipal Council
1983. Lawyer in charge of the Territorial Government Area of the Public Ombudsman’s Office.
1997. Manager of the Legal Services Department of the Spanish National Securities Market Commission. Board Secretary, Secretary to the Consultative Committee and Secretary to the Special Commission for the Study of a Code of Ethics for Companies’ Boards of Directors.
2001. Director, General Secretary and Secretary to the Board of Directors of Telefónica, S.A.
2006. General Secretary of Affinitas, an alliance promoted by Garrigues.

Joined firm:2006

Bar Admissions

- Member of the contributions committee of Derecho de Sociedades review.


Degree in Law, Universidad Complutense de Madrid.
Master’s Degree in Financial Management and Investment Analysis, Universidad Complutense de Madrid
Securities Market Analysis

Other courses: “Issues and Trading in Securities”, “Corporate Finance”, “Corporations Reform” (*), “Financial Markets for Lawyers”, “Legal Aspects of Derivatives”, “The City Code on Takeovers and Mergers”
Areas of Practice

Government | Insurance | Securities Markets

Professional Career

Professional Activities and Experience

Teaching Experience

Program director, “The Legal Regime Governing Telecommunications, TV and the Internet” (*), Instituto de Empresa.


  • Preparation and delivery of a training program for public prosecutors in 1995 (Seminars organized by the Public Prosecutor’s Office)
  • “Legal Certainty for Spanish Companies in Latin America in the Face of the Wave of Populism” (*) seminar as part of the Latin American Business Project organized by Expansión (Recoletos Group) and the Official Credit Institute (ICO) with academic support from Instituto de Empresa (IE).
  • “Information Protection: Full Disclosure, Its Current Stage and Possible Developments” at the seminar organized by the Brazilian Securities Market Commission on the occasion
    of its 30th anniversary.

    Articles and Publications:
  • “The Struggle for the Control of Large Companies” (*). Editorial Deusto.
  • “Financial Markets Law”. Volume 1: Financial Market Entities, Public Control and Crisis. Securities Markets (*)

    (*) originally taught/published in Spanish. For further information, see Spanish version of CV.

  • WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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