António Andresen Guimarães

Founding Partner

António Andresen Guimarães has been a HAAG partner since 1992.

António practices primarily in the following areas of the law: Environment, Energy and Natural Resources law; Commercial and Company Law; Project Finance Law and Competition Law.

Academic Qualifications

Law Degree at the Law Faculty of the University of Lisbon.

Areas of Specialisation

  • Environment, Energy and Natural Resources Law
  • Environment Law
  • Company Law
  • Mergers and Acquisitions
  • EU / Competition Law
  • Information Technology Law
  • Intellectual Property Law
  • Tax Law

Other Professional Information

  • Vice-President of the District Committee of the Portuguese Bar Association, 1996 - 1998;
  • Member of the European Lawyers Association (UAE) since 1988 and of its Executive Committee 1995-97, 1998-2000 and 2001-2003;
  • Member of the Organising Committee of the Congress of the Union of European Lawyers in Lisbon, 1994;
  • Member of the Organising Committee of the Conference "New Environmental Challenges: Legal Responses", held at Culturgest, Lisbon, 1995 and at the Catholic University in Porto, 1997;
  • Vice-President of Ecojus – Association for Global Environmental Studies;
  • Member of the Organising Committee of the International Conference “Towards International Protection of the Oceans: Standards and Compliance”, integrated in the Scientific Programme of Expo 98, Lisbon;
  • Member of the multinational working team selected under the European Commission PHARE programme, which reviewed the Commercial Law of Lithuania, which was responsible for the drafting of the Investment Law in 1998.


Portuguese / English / French / Spanish

Member of the Portuguese Bar Association since 1980.

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