Fielding specialised criminal law and litigation lawyers, Prieto Abogados’ four-member compliance team acts for clients from the automotive, energy, aquaculture, and banking and finance sectors (among others). It also leverages the firm’s expertise in data protection, cybersecurity, AI, antitrust, and corporate and environmental law. Benjamín Grebe is experienced in competition-related compliance work; director María Jesús Becerra leads the firm’s white-collar crime offering; and associate Josefina Olmedo advises on the design, implementation, and updating of crime prevention systems. Former partner Fernando Bravo and associate Diego Madariaga departed the firm in January 2026 and August 2025, respectively.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • We only have one other experience to compare it to, and I can say that the Prieto legal team showed complete commitment to our foundation. They were proactive throughout the entire process, readily available, and answered all our questions. They created a work plan and followed it to the letter. This is a stark contrast to the other firm, which we have to constantly chase down to get answers to our inquiries.
  • The lawyers were incredibly warm and approachable. They were very professional, not only providing answers but also ensuring we understood the context and information.
  • They have a very clear understanding of clients’ organisations and excel because they advise with complete clarity on operations. Josefina Olmedo, who is highly regarded by everyone, is a tremendous help in implementing and strengthening the compliance area, along with the direct support and guidance of María Jesús Becerra, who is a fundamental asset in this area.
  • They create accurate matrices that accurately reflect local operations, working closely, directly, and comprehensively with sales teams, resulting in a set of internal policies that naturally adapt to organisations.
  • The real strength of Prieto's lawyers lies in their empathy and approachability. They provided highly professional support, answering each of our questions with complete clarity and promptness. What truly sets them apart is their genuine willingness to help; we never felt our case was less of a priority. Their ability to explain technical legal concepts in a straightforward manner is an outstanding quality that greatly facilitates decision-making at the Foundation. From the team that worked with us, I would especially like to highlight María Jesús Becerra and Josefina Olmedo.
  • Prieto's standard of quality is exceptional. Clients highlight their ability to simplify complex issues in the development of risk matrices, codes of ethics, and crime prevention models. The team stands out for providing close support and a high standard of professionalism, characterised by remarkable diligence in resolving enquiries. Their ability to respond with technical clarity and promptness is key. Clients also deeply value their proactivity and complete willingness to address each requirement with precise and timely solutions.

Key clients

  • WSP Chile
  • Electrogas
  • AME Holding Chile
  • Empresa Constructora Moller y Pérez-Cotapos
  • Fundación Ama+
  • Equinox Los Andes Chile
  • Compañía Operadora de Infraestructuras Eléctrica
  • Importadora de Granos G9
  • Engie Energía Chile
  • Watt’s

Work highlights

Advising Equinox Los Andes on on the implementation of its crime prevention model, in accordance with the provisions of Law 20.393.
Assisted Electrogas with the design and development of its crime prevention system.
Assisted Moller with designing its crime prevention system.
Practice head

María Jesús Becerra; Benjamín Grebe