Patricio Martínez Osorio > Gonzalez Calvillo > Mexico City, Mexico > Lawyer Profile
Gonzalez Calvillo Offices
MONTES URALES 632
LOMAS DE CHAPULTEPEC
Mexico
- Firm Profile
- Go to...
Patricio Martínez Osorio
Position
Counsel at Gonzalez Calvillo
Career
As counsel, Patricio leads the firm’s merger control front in the Antitrust and Competition practice area. He has over 15 years of experience advising and representing domestic and foreign companies, with special focus on regulatory matters, obtaining approvals in complex pre-merger filings before the Mexican Antitrust Commission (COFECE), among others.
The industries in which Patricio has obtained pre-merger clearances include agrochemicals, hospitality and timeshares, supermarkets, carbonated beverages, bottled water, services and processes in the oil and gas industries, pharmaceuticals, entertainment, textiles, valves, controls, and compressors. He also advises companies in investigations involving cartel behaviour and abuse of dominance cases.
Patricio also advises companies in corporate and commercial law matters. Additionally, he has broad experience in data protection and counselling regarding the new Transparency in Advertisement Contracting Statute.
His international experience includes working as foreign associate at the New York office of Shearman & Sterling between 2011 and 2012.
Languages
Spanish and English
Memberships
American Bar Association (ABA)
Education
Master of Laws (LL.M.) with merit, in Competition Law, King’s College London, London, United Kingdom (2010)
Law degree (J.D. equivalent) with highest honors, Universidad Iberoamericana, Mexico City, Mexico (2005)
Lawyer Rankings
Mexico > Competition and antitrust
‘Great team and great leadership’ is the assessment of Gonzalez Calvillo
’s competition and antitrust team by clients familiar with the practice, with group head Cristina Massa being singled out as ‘an extremely professional lawyer… with in-depth knowledge of economic competition’ matters; she can draw on relevant professional experience at both the Mexican antitrust commission and various other public sector posts. Massa primarily acts for major companies and investment funds in Mexico, particularly in the highly regulated sectors of telecoms, energy and financial services. More broadly, she and her team handle merger control procedures, the design and implementation of strategy, and the representation of clients in investigation proceedings before competition agencies. The merger-control side of the wider practice is led by counsel Patricio Martínez Osorio; he assists both domestic and multinational companies particularly as regards pre-merger filings in Mexico. Associate Daniel González Contreras is also an active member of the practice group. Since publication, Massa has left the firm – effective as of April 2024.