APP
  • Find a lawyer
  • Practices and Sectors
    Position
    Office
Marta Orteu Sesé
Marta Orteu Sesé

Contact

marta.orteu@perezllorca.com
T: +34 91 432 13 02
Paseo de la Castellana, 50
28046 Madrid
Spain

Profile

Marta joined Pérez-Llorca in 2026 after spending more than four years at a leading international law firm, specialising in criminal litigation, compliance and investigations. Prior to that, she worked as a lawyer at two specialist criminal litigation firms.

Studies:

  • 2024 — CESCOM Compliance Expert Certification (Asociación Española de Compliance – ASCOM). Internationally Certified Compliance Professional IFCA
  • 2024 — Specialisation course in Internal Investigations and Forensics, Escuela de Práctica Jurídica, Universidad Complutense de Madrid
  • 2021 — Master’s degree in Criminal Law and Criminal Procedure, Universidad Carlos III de Madrid
  • 2020 — High Specialisation Diploma in White Collar Crime, Escuela de Práctica Jurídica, Universidad Complutense de Madrid
  • 2020 — Master’s degree for Access to the Legal Profession, Universidad Complutense de Madrid
  • 2018 — Degree in Law, Universitat de Lleida

She speaks Spanish, Catalan and English.

Experience

Marta has over six years’ experience in the fields of criminal litigation, compliance and internal investigations. She has spent most of her career in the Criminal Litigation, Compliance and Investigations department of a leading international law firm, where she has been involved in complex criminal proceedings and has provided comprehensive advice to individuals and companies on economic crime matters. Previously, she gained a solid grounding in criminal litigation at a boutique law firm specialising in international criminal law, which has enabled her to handle cases with cross-border implications.

Her experience mainly covers:

  • Legal advice and defence in criminal proceedings relating to white collar crime and crimes against socio-economic order. Marta worked in the Criminal Litigation, Compliance and Investigations department of a leading international law firm since 2022, acting in complex criminal proceedings on behalf of both individuals and companies. Her practice includes advising on matters relating to crimes against property and the socioeconomic order, including fraud, misappropriation, unfair administration, criminal insolvency, corruption, corporate crimes and money laundering offences, as well as offences against the tax authorities and the social security system.
  • Involvement in internal investigations and advising on criminal compliance matters. Marta has devoted a significant part of her career to the field of compliance and internal investigations, taking part in investigations at both national and international level aimed at detecting irregularities, improper practices, internal fraud and conflicts of interest in companies particularly exposed to criminal or reputational risks.

Professional organisations

The Madrid Bar Association (ICAM).

__Find a lawyer

Team

Lawyers

Practices and Sectors
Position
Office
Team Marta Orteu Sesé
Return

Associate

Marta Orteu Sesé

Licence no.133683

The Madrid Bar Association

Team

Lawyers

Practices and Sectors
Position
Office

Associate Marta Orteu Sesé

Licence no.133683

The Madrid Bar Association

Offices

Madrid

Office

Madrid

Contact

marta.orteu@perezllorca.com
T: +34 91 432 13 02
Paseo de la Castellana, 50
28046 Madrid
Spain

Profile

Marta joined Pérez-Llorca in 2026 after spending more than four years at a leading international law firm, specialising in criminal litigation, compliance and investigations. Prior to that, she worked as a lawyer at two specialist criminal litigation firms.

Studies:

  • 2024 — CESCOM Compliance Expert Certification (Asociación Española de Compliance – ASCOM). Internationally Certified Compliance Professional IFCA
  • 2024 — Specialisation course in Internal Investigations and Forensics, Escuela de Práctica Jurídica, Universidad Complutense de Madrid
  • 2021 — Master’s degree in Criminal Law and Criminal Procedure, Universidad Carlos III de Madrid
  • 2020 — High Specialisation Diploma in White Collar Crime, Escuela de Práctica Jurídica, Universidad Complutense de Madrid
  • 2020 — Master’s degree for Access to the Legal Profession, Universidad Complutense de Madrid
  • 2018 — Degree in Law, Universitat de Lleida

She speaks Spanish, Catalan and English.

Experience

Marta has over six years’ experience in the fields of criminal litigation, compliance and internal investigations. She has spent most of her career in the Criminal Litigation, Compliance and Investigations department of a leading international law firm, where she has been involved in complex criminal proceedings and has provided comprehensive advice to individuals and companies on economic crime matters. Previously, she gained a solid grounding in criminal litigation at a boutique law firm specialising in international criminal law, which has enabled her to handle cases with cross-border implications.

Her experience mainly covers:

  • Legal advice and defence in criminal proceedings relating to white collar crime and crimes against socio-economic order. Marta worked in the Criminal Litigation, Compliance and Investigations department of a leading international law firm since 2022, acting in complex criminal proceedings on behalf of both individuals and companies. Her practice includes advising on matters relating to crimes against property and the socioeconomic order, including fraud, misappropriation, unfair administration, criminal insolvency, corruption, corporate crimes and money laundering offences, as well as offences against the tax authorities and the social security system.
  • Involvement in internal investigations and advising on criminal compliance matters. Marta has devoted a significant part of her career to the field of compliance and internal investigations, taking part in investigations at both national and international level aimed at detecting irregularities, improper practices, internal fraud and conflicts of interest in companies particularly exposed to criminal or reputational risks.

Professional organisations

The Madrid Bar Association (ICAM).

Office

Madrid

Contact

marta.orteu@perezllorca.com
T: +34 91 432 13 02

Paseo de la Castellana, 50
28046 Madrid
Spain