Isabel Mayer Martinha

Senior Managing Associate

Isabel Mayer Martinha

Main Practice Areas

Public Law

Public Procurement

Urban Planning

Administrative Litigation

Isabel joined CTSU – Sociedade de Advogados, the Deloitte Legal practice in Portugal, in February 2022.

With more than 20 years of professional experience, Isabel has a solid expertise in Public Law and Public Procurement. She practices mainly in the areas of Administrative Law, Public Contracts (public-private partnerships, concessions contracts, public works contracts and public supply contracts), Urban Planning, Environment, Expropriations and Administrative Litigation. She provides legal advice both to public entities and to private companies, namely in pre-contractual matters (public tenders) and in administrative litigation. She also provides legal advice to clients in what concerns urban planning operations licensing. She worked at the law firm Morais Leitão where she was a senior member of the Public Law team.

Prior to joining CTSU Isabel worked at the Technical Unit for Monitoring of Projects, known for short as UTAP, a public law entity supervised by the Ministry of Finance that has the mission of technically supporting the ministerial departments in the global monitoring of public-private partnerships projects. Her experience includes, in this area, among other, the preparation of complex public tenders, including the drafting of the procurement documents and the participation in the composition of the jury.

Isabel is also a Member of the Board of a public interest non-profit association, engaged in education and social support for the community of Bairro Alto in Lisbon.

Member of the Portuguese Bar Association since 2000.


  • Post-graduate course in Pharmaceutical Law from Law School of Universidade de Coimbra, 2008.
  • Post-graduate course in Administrative Litigation from Law School of Universidade Católica Portuguesa, 2003.
  • Law Degree from the Law School of Universidade de Lisboa, 1998.


Portuguese and English.

Isabel Mayer Martinha