Firm Profile > SAI Derecho & Economía S.C > México City, Mexico

SAI Derecho & Economía S.C

Competition and antitrust Tier 1

The highly-rated boutique SAI Derecho & Economía S.C offers its clients a strong mix of technical and legal expertise, thanks to the presence of several highly experienced lawyers and economists. Practice head Lucía Ojeda has over 20 years of experience, while the extremely well-regarded José Ángel Santiago  heads the antitrust and regulatory litigation side of the team. The 'very active' group is regularly referred merger-clearance matters by international companies and law firms who don't have the capacity to do the work themselves. It is also often involved in major cartel and abuse of dominance investigations.  Recently the firm has been advising Walt Disney on the local clearance for its takeover of 21st Century Fox. The firm also successfully defended the egg producer Proteina Animal throughout a cartel investigation into the production and distribution of eggs.

International trade and customs Tier 1

SAI Derecho & Economía S.C  is something of an outlier among international trade and customs firms in Mexico as it houses lawyers and economists - many of whom have held high public office and took part in the NAFTA negotiations; as a result, the advice it provides ranges from specific lega matters through to broader consulting regarding the market. In the former, the team is especially noted for its antidumping and FTA work, and it is praised for being ‘really specialised’ and for ‘retaining and forming valuable young lawyers’. Recent work saw the practice deliver custom-made analyses of the United States Mexico Canada Agreement (USMCA) for IEnova and Vitro, tailored to focus on their respective industries; and the team also continued to provide regulator reports on NAFTA to clients including Accenture, Actinver Casa de Bolsa, Banco Santander México, BBVA Bancomer, Braskem Idesa Servicios, ExxonMobil Exploración y Producción México, Nomura Securities, and the American Embassy in Mexico. Other work includes carrying out a comprehensive study for the government of the state of Guanajuato on its national and foreign investment programme (established in 1995), analysing the legal, social and economic impact of the programme and identifying measures for improvement. Practice head Beatriz Leycegui Gardoqui has been working in the sector for almost three decades, including as undersecretary of Foreign Trade (2006-11); since 2013 she has been on the WTO’s indicative list of governmental and non-governmental panelists and she is currently a member of the arbitral panel in a case regarding the use of certain methodologies by the US in anti-dumping investigations involving Chinese products. Key support comes from associate María Cristina Hernández Zermeño.


SAI is a Mexican law firm, founded in 1995 by a group of lawyers and economists who decided to leave the public sector after having occupied key positions in the Mexican delegation that negotiated the North American Free Trade Agreement. To do so, they merged their members’ experience and talent to create a firm with an innovative concept in Mexico: legal, economic and financial consulting services with an interdisciplinary approach.

The firm: SAI provides its clients with a wide variety of specialized services and unique assessments related to a great range of areas of the law. Moreover, the firm’s professionals’ experience in designing and implementing various national and international transactions, in both the public and the private sectors, allows it to offer clients practical proposals and solutions.

Areas of practice: Combining the expertise of the public and the private sectors, and with more than 20 years of expertise, SAI advises and represents clients from all around the world in the following areas of the law: economic competition, arbitration, international trade and trade remedies, regulatory and public policy, corporate and litigation. SAI provides its services to both private and public sectors, including the Mexican federal state governments and those of foreign countries.

Department Name Email Telephone
President Jaime Serra Puche E:
Arbitration Lucia Ojeda Cárdenas E:
Arbitration Beatriz Leycegui E:
Corporate practice José Ángel Santiago Ábrego E:
Economic competition Lucia Ojeda Cárdenas E:
Economic competition José Enrique Espinosa E:
Economic competition José Ángel Santiago Ábrego E:
International trade and trade remedies Beatriz Leycegui E:
Regulatory and public po Beatriz Leycegui E:
Litigation José Ángel Santiago Ábrego E:
Other fee-earners : 10
Total staff : 37
Partners : 9