Firmly at the forefront of competition law in Mexico, Creel, García-Cuéllar, Aiza y Enríquez, S.C. maintains a full-service practice that handles everything from antitrust compliance and merger reviews to cartel investigations and appeals court litigation. The group is experienced in advising top-profile clients from highly regulated sectors and demonstrates particular activity in the manufacturing, financial services and real estate industries. Luis Gerardo García Santos Coy is a key authority in the competition space, actively handling pre-merger filings, investigations and amparo proceedings before competition authorities. He co-leads the team alongside Carlos Mena, who is regularly involved in cartel, abuse of dominance and market investigations. The firm’s expertise is bolstered by Mauricio Serralde, whose caseload covers the full scope of relevant matters, while Jorge Kargl has a particular focus on aiding clients in the TMT sector with all antitrust-related issues. Another name of note, Sara Gutiérrez specialises in administrative and constitutional litigation as well as being involved in the firm’s ESG practice.

With a dominant presence in merger control matters and contested M&A transactions, Galicia Abogados S.C. remains a key leader in competition law. The practice group’s scope additionally includes cartel investigations, leniency applications and complaints before COFECE, as well as a comprehensive understanding of judicial proceedings related to antitrust law and strategies to best handle high-stakes contentious matters. Its stellar client list – comprising multinational companies across various industries, notably banking, energy and pharmaceuticals – is attended by a deep bench of expert practitioners and former competition officers with specialised expertise across multiple disciplines and regulated sectors. Christian Lippert has an enviable track record handling abuse of market dominance and cartel investigations, while Carlos Chávez also handles many of the group’s most complex competition and antitrust mandates. Additional leaders in the group include Juan Carlos Burgos, an expert in the competition challenges faced by the energy sector; and newly promoted partner Gerardo Rodríguez, whose experience spans a range of regulated industries. Additional support is provided by highly active senior associates Daniella Ramírez and Maite Celorio.

Greenberg Traurig, S.C. is a destination firm for contentious antitrust issues, with strong expertise in litigation and administrative proceedings, including representation in illegal merger allegations and Article 94 investigations, and fine revocation for cartel conduct. The competition group has obtained resolutions before both specialised federal courts and the Supreme Court, and also excels in advisory and transactional work, boasting a strong track record in pre-merger filing approvals. Practice co-heads Victor Manuel Frías Garcés and Miguel Flores Bernés have vast expertise in the field. Bernés’ previous experience as a commissioner with COFECE gives him an edge in developing defence strategies to represent clients before specialised competition courts; while Frías Garcés has handled numerous internal investigations regarding anti-corruption and data privacy issues, and also - as a leading authority in corporate M&A - handles merger notifications. Promoted to shareholder in January 2025, Rocío Olea Salgado's practice is centred on competition and business law in the technology and e-commerce sectors. Primary support is provided by senior associate Valery García Zavala, whose antitrust knowledge stretches across the pharmaceutical, financial and telecoms industries. Former senior associate Abel Rivera Pedroza left the team in June 2024 to establish his own practice.

Hogan Lovells stands out for its antitrust litigation capabilities, which see the practice engaged by clients in numerous investigations, constitutional amparo challenges against COFECE, and even civil litigation, where the team handle a civil-damages case resulting from cartel offences in the Mexican pharmaceutical industry. Away from its strong contentious offering, the practice is equally robust when it comes to competition advisory, with strengths in the development of compliance programs and securing merger control for complex transactions. Ricardo Pons is a recognised leader in the field, particularly in merger control proceedings; he co-leads the practice with Omar Guerrero, a dedicated litigator who routinely tackles abuse of dominance and cartel investigations before the competition authorities and federal courts. The group also draws on the experience of up-and-coming partner Alan Ramírez Casazza, who maintains a full-service competition practice across a variety of industries, ranging from investigations and contentious matters to merger control and compliance programs. Senior associate Martín Michaus Fernández supports on merger control mandates and has also undertaken administrative and constitutional litigation before antitrust agencies across several jurisdictions in Latin America as well as the United States.

SAI Derecho & Economía S.C handles the full gamut of competition and antitrust matters with a focus on compliance, merger control and leniency applications. Additionally, the firm has a robust contentious offering which includes administrative and regulatory litigation and a comprehensive range of investigations before COFECE and the IFT. Lucía Ojeda Cárdenas is a highly sought-after practitioner for her strengths in defending a diverse range of clients subject to antitrust investigations and the obtaining of merger clearance for national and global deals. She co-heads the practice with José Ángel Santiago, an expert in constitutional litigation and representation before competition regulatory bodies. Luis Alberto Ibarra Pardo is a leading economics practitioner and former commissioner of COFECE who has deep knowledge of competition law, regulation and public policies. Primary support is provided by senior associate Felipe García Cuevas who handles merger notification procedures and monopolistic practice investigation matters for various regulated sectors. Other active associates include Ernesto Álvarez Castillo and Bruno Puerto Salazar. The practice was further strengthened with the hire of Ana Paula Zorrilla as a senior associate in June 2024.

Von Wobeser y Sierra, SC is a first port of call for major multinationals and leading domestic corporations seeking merger clearance and regulatory approval for cross-border acquisitions and M&A transactions. The team’s advisory practice is enhanced by its strong focus on compliance, which sees it conduct antitrust audits to ensure risk mitigation and also design tailored compliance programs for clients. The group is equally as strong on cartel practice investigation matters and the abuse of dominance cases; it is currently handling active COFECE investigations in the digital and financial market segments. Fernando Carreño co-heads the group and is a heavily sought-after practitioner for antitrust investigations. Sergio López serves as co-lead of the team and can draw on lengthy experience at Mexico’s competition authority to tackle the most complex antitrust mandates. Counsel Michel Llorens focuses on complex merger notifications and leniency program applications. Former associate Mónica Cabeza de Vaca moved in house as compliance manager at Visa (Mexico) in May 2025.

Senior counsel Raymundo Enriquez leads an active competition practice at Baker McKenzie Abogados, S.C., which aids a broad multinational client base with diverse merger control processes. Recent representation includes advising Iberdrola on a sizeable COFECE case involving the sale of over 8,500MW of energy capacity to Mexico Infrastructure Partners as part of its decarbonisation efforts. The practice group also houses expertise in handling COFECE proceedings, with Enriquez leading cartel investigations, and partner Luis Amado actively assisting a range of industry clients with abuse of dominance cases. The pair are consistently supported by associate Alina de la Luz, whose prior experience at the Mexican competition authority included conducting investigations across the financial, energy, digital, and telecommunications sectors.

Mijares, Angoitia, Cortés y Fuentes S.C. advises on all manner of antitrust and competition matters, with particular strength in transactional work where it handles merger control filings for high-calibre international clients spanning the energy, telecoms and financial sectors, among others. The group advises across all stages of monopolistic practice procedures and contentious defence, as shown by its successful defence of Grupo Casa Saba in COFECE’s pharmaceutical sector investigation and ongoing representation in the related amparo lawsuit. Name partner Francisco Fuentes' practice is centred on merger analysis and antitrust litigation; he co-leads the practice with Carlos Orcí, whose close knowledge of Mexico's competition authorities enables him to assist international clients navigate merger control procedures and investigations related to essential inputs and entry barriers. Key support is provided by antitrust litigator and senior associate Elian Ávila, who has strong expertise in leniency procedures and investigations, while associate Patricio Rivas plays an active role across both the advisory and contentious sides of the practice.

The 11-strong team at Sainz Abogados handles the gamut of competition matters, from high-stakes merger control to cartel investigation, abuse of dominance and barriers to entry; it is highlighted for both its work in heavily regulated sectors and in emergent markets such as fintech, edtech and AI. Well integrated with the firm’s corporate transactional practice, the team regularly handles domestic COFECE and IFT matters, along with those involving sectoral regulations and/or international competition authorities. The practice is led by prestigious market stalwart Cristina Massa, with primary support from senior associate Omar Salamanca, who arrived from the IFT in January 2025. Energy focused counsel, Pedro S Lladó and associate Mario Rodríguez are also frequently active in the sector, as are associates Santiago Hernández (civil, commercial, administrative and constitutional litigation, plus amparos and arbitration) and Carolina González Vázquez (administrative law). Former senior Juan María López Cortina left the firm in April 2024.

The competition and antitrust practice at Valdés Abascal Abogados, S.C. is praised for its ‘high level of specialisation, experience, and knowledge of diverse sectors’. Complementing its robust advisory offering, the firm is highly active in antitrust investigations and litigation, with expertise spanning administrative and judicial proceedings before competition authorities, federal courts and the Supreme Court. The group is particularly experienced in advising clients acting as cooperating third parties in market-wide investigations undertaken by COFECE across a range of industries. Founder Rafael Valdés Abascal draws on his experience at the commission to co-lead the team on both advisory and contentious competition issues; he frequently works alongside Enrique de la Peña, who focuses on merger control procedures and the defence of economic agents in cartel and dominance investigations before the federal courts. The pair are supported by associates Juan Pablo Bueno Zarazúa and Diana Alejandra Rangel Pantoja.

White & Case S.C. specialises in managing complex merger control procedures for a domestic and global client list, offering end-to-end support as regards M&A transactions. On the investigations front, the firm is active across sectors such as the technology, finance, e-commerce and transportation markets, and additionally has strong expertise in representing clients in amparo lawsuits challenging COFECE decisions. At the helm of the practice is Henri Capin Gally, leads the team on high-profile transactions and competition investigations. Román González is experienced in obtaining merger control authorisations for domestic and international clients and has a strong track record representing clients in antitrust investigations by COFECE and the IFT. Junior partner Fernando García Gómez is a key team player with a robust understanding of antitrust law; he primarily advises clients on constitutional and administrative disputes. Associate Diego Mendoza Arrieta assists with antitrust investigation procedures related to the telecoms, transportation and commodity markets in Mexico.

Basham, Ringe y Correa, S.C. is well-versed in obtaining merger clearance in domestic and international M&A transactions. Beyond transactional expertise, the group also demonstrates strength handling competition investigations - particularly those regarding cartel behaviour. Practice head Amilcar Peredo has experience across the full spectrum of antitrust matters, representing domestic and global clients in pre-merger filings, leniency applications and a range of investigations led by competition authorities. Corporate and M&A partner Jesús Colunga assists on transactional mandates, while associate León Jiménez has broad experience in competition law and provides robust support for clients across various industries. Guadalupe Jiménez is an equally active associate with a particular focus on anti-competitive practice investigations.

An antitrust practice praised for ‘the quality and depth of its analysis’, Jones Day has a comprehensive offering with both merger control and contentious expertise, with regular collaboration from partners across the firm’s global network. The group handles a range of investigations into market conditions, anticompetitive conduct and collusion allegations, and is equally active in representing clients in amparo proceedings challenging COFECE resolutions. Counsel and team lead Gabriel Altamirano is ‘a professional with great recognition and trajectory’, reflecting his broad experience across the full range of competition matters. Close support is provided by associate Esmeralda Vera Torres, who counsels domestic and foreign clients on government procedures related to merger control filings and competition investigations.

The antitrust team at Pérez-Llorca operates with equal proficiency in merger control matters and investigations, whilst also counselling clients on competition law-related issues in commercial dealings. Counsel Patricio Martínez Osorio is the practice head of the group and takes charge of merger control procedures; he has experience in obtaining clearance from COFECE in several regulated markets. Key support is provided by senior associate Gustavo Alonso González del Castillo, whose areas of focus include antitrust investigations involving collusion, abuse of dominance and barriers to competition; and intermediate Michelle Posada Mendoza, whose strong regulatory and litigation skills aid the firm's investigative work.

Remaining active in the financial, real estate, and energy sectors, Ritch, Mueller y Nicolau, S.C. handles a range of competition matters including M&A clearances, COFECE-led investigations, and related interlocutory proceedings. The group also supports clients on implementing compliance programs and conducting audits to mitigate antitrust risk. Antitrust specialist Octavio Olivo Villa co-leads the team and has a niche focus on aviation law. Fellow co-head and name partner, of counsel James Ritch is deeply experienced in M&A, facilitating his emphasis on merger control and competition investigations. Associate Marta Loubet has experience supporting on antitrust matters across the energy, financial and TMT sectors, while Julia Fuentes is involved in both merger control proceedings and administrative appeals against competition authorities.

Luis Alberto Aziz Checa leads the antitrust practice at Aziz & Kaye Business Law, which handles the full gamut of antitrust matters, from merger clearance and legal audits to COFECE investigations and subsequent amparo trials. He is supported by senior associates Agustín Aguilar López and Joana Karime Novia, as well as recent addition Carlos García Cueva and Sharon Alcántara, who join at the senior and junior associate levels, respectively.

 

DLA Piper Mexico has a robust competition practice that is highly capable of representation before COFECE and IFT regarding antitrust investigations and complaints, as well as advising on approval resolutions or regulatory clearance in large M&A transactions. The group also boasts cross-sector expertise with regular activity in the financial and energy industries. Jorge Benejam, who brings strong credentials in M&A and regulated markets, co-leads the team with litigator Antonio Cárdenas, whose practice focuses on amparo proceedings and investigations by competition authorities. They are supported by Regina Esparza, an associate with broad antitrust expertise, and Ana Marietta Rivero, who has experience representing national and multinational companies before COFECE in investigations into anti-competitive practices.

Nader, Hayaux y Goebel, SC assists companies across the real estate, insurance and telecoms industries on securing regulatory approvals for M&A transactions, while also representing them in market-wide investigations and probes into cartel conduct. Alejandro Mendiola Díaz is the cornerstone of the practice, leading the firm's high-stakes antitrust matters. Of counsel, Gabriel González Aragón is active across the firm's handling of cartel investigations. Former specialist associate Sandra Portillo left the firm in July 2025 to undertake her LLM.

Santamarina y Steta has an active antitrust advisory practice that assists multinational companies with reviewing and implementing antitrust guidelines for corporate operations; it also handles merger control matters and market-wide COFECE investigations. With expertise spanning merger control, antitrust investigations and competition advisory, Vicente Grau leads the team. Intermediate associate Mariana Alcalá provides key support across the full spectrum of the firm's antitrust matters.

Under the leadership of Diego González Altamirano, the competition practice at Conesa y Moreno Abogados has continued to develop steadily since its establishment in 2022. González is specialised in cartel and single-firm conduct investigations, but also handles administrative litigation before antitrust, broadcasting and telecoms courts. He is supported by associate Tania Manzur Hasbun, who has experience in administrative law and commercial and constitutional litigation.