Competition and antitrust in Argentina

Allende & Brea

Allende & Brea is regularly called on by international corporations to advise on merger control matters, with its international presence boosted by leadership positions in the Antitrust Committee of the International Bar Association, the Antitrust Section of the American Bar Association and the American Antitrust Institute. The practice has an impressive track record in high-stakes cartel cases, handles vertical restraint and dominance matters, and advises clients on the design of distribution systems to comply with antitrust laws. One of Argentina’s foremost competition and antitrust lawyers Julián Peña leads the team and is recognised for the depth of his expertise across all aspects of competition and antitrust law. Federico Rossi is the practice group’s other key name and handles merger control proceedings, cartel investigations, dominance cases and sectoral enquiries.

Practice head(s):

Julián Peña


I’ve been working with Julián Peña and his team at Allende & Brea for more than 13 years now, mainly on antitrust issues. The way they have counseled and supported us has always been outstanding. With a great level of business understanding, and a true partnership approach, they have helped us navigate several situations with excellent outcomes. Apart from this, Julián (and his team) deploy very high ethical standards and are very enjoyable to work with. True partners. A real pleasure for us as clients.

Key clients




Sherwin Williams







Work highlights

  • Advised AbbVie on the merger control proceedings before the Argentine Antitrust Authority related to its global merger with Allergan.
  • Advised Orocobre and Galaxy with the merger control notification regarding their $4bn-peso merger-of-equals.
  • Represented a client with regard to cartel allegations raised by the antitrust authority in relation to the medical oxygen segment of the industrial gases sector.

Marval O’Farrell Mairal

Marval O’Farrell Mairal stands out for handling a high volume of merger filings and maintaining a top-quality antitrust investigation unit, which participates in the most demanding and complex investigations conducted by the Antitrust Commission. The team’s expertise is sought out by clients across Latin America, with the firm assisting companies in Argentina, Brazil, Chile, Bolivia, Peru and Uruguay on a range of competition, economic regulation and internal compliance matters. Practice head Miguel Del Pino is a widely respected competition law specialist with more than two decades' experience handling competition and antitrust matters. Partner Santiago del Rio also dedicates his practice to competition law and is another key senior contact. Experienced senior associate Gabriela Ariel Irizar (antitrust and litigation) and associate Ignacio Mora (competition law) provide additional support.

Practice head(s):

Miguel del Pino


Marval’s team is highly professional, sophisticated in its area of expertise and with a high commitment and monitoring of customer needs.

Santiago Del Rio and Franco Nigro are outstanding professionals in their area, with excellent market knowledge.

Key clients

Saudi Aramco

Thermo Fisher



Pernod Ricard



General Motors



Sumitomo Chemical

American Tower Corporation

Lone Star

Yara Corporation

Compagnie Gervais Danone

Delivery Hero

Siemens Healthineers


Helios Health (Fresenius)

Work highlights

  • Advising on a dominance claim by PPRO against Visa and Mastercard in the digital payment industry.
  • Advising Discovery/Warner on a merger control notification.
  • Advising on the negotiation of remedies in the Avon Natura merger control proceedings.

Beccar Varela

Beccar Varela is sought out for advice on enforcement, merger control, investigations, counselling and compliance, as well as cartel-related litigation. The team is particularly well-known for its competition law expertise in the cement, automobile and technology sectors, and has also been active on credit-card abuse investigations. Practice head Agustín Waisman is recognised for his competition and antitrust experience, and is also strong in the areas of consumer protection and gaming law. Augusto Vechio, co-head of the firm’s international trade and customs team, provides additional senior level support, with senior associates Camila Corvalán and Mercedes Pando leading the second line.

Practice head(s):

Agustín Waisman

Key clients



Aerolíneas Argentinas


Boehringer Ingelheim

Kimberly Clarke



Edwards Life Sciences

Quinto Andar

Work highlights

  • Advised on the competition strategy for the sale of a 49% stake in Prisma to Advent International.
  • Advising Petroquímica Comodoro Rivadavia, one of the four cement companies in Argentina, on an investigation for alleged abuse of dominance before the Argentine Competition Commission.
  • Assisted renewable energy company Total Eren with the preparation and filing of a submission to the Competition Commission following its investment in the Vientos Los Hércules windfarm project.


Bomchil’s long standing competition and anti-trust practice handles key merger-control and anticompetitive matters, and is particularly well-known for its work on multi-jurisdictional merger cases and sensitive cartel investigations. Drawing on expertise from the across the firm, the team also covers regulatory matters, administrative law and litigation. Divided into a merger control and investigations unit and a general advice and compliance arm, the practice has broad sector experience, supporting clients in the media, telecoms, energy, chemicals, retail, financial services and transportation industries. Practice head Marcelo Den Toom is a well-networked antitrust expert with vast experience in the area. Telecoms and media lead Francisco Gutiérrez and seasoned energy and natural resources partner Fernando Brunelli are available to provide additional senior-level support.

Practice head(s):

Marcelo den Toom


Bomchil’s competition team is very well established, well-connected and can boast a vast experience in transactional and work.

Marcelo den Toom is a market leader. He has vast experience, is well-connected, analytically strong, pragmatic and pleasant to work with.

Key clients



Schneider Electric



Apollo Global Management



Imagen Satelital







Grupo Corporación América

Astra Zeneca

Stine Seeds

Work highlights

  • Advising Holcim on a complex price discrimination investigation in the cement market in Argentina.
  • Advising seven construction companies on bid rigging allegations in a significant cartel investigation.
  • Representing WarnerMedia in the merger filing related to its $43bn merger with Discovery.

De Dios & Goyena

Competition and antitrust boutique De Dios & Goyena is noted for implementing antitrust compliance rules and developing antitrust compliance training programmes in Argentina, Brazil, Chile, Uruguay, Perú and Colombia. The firm’s specialist expertise sees it called on by international and domestic clients for advice on the the competition aspects of large cross-border acquisitions, as well as for support in proceedings before antitrust authorities. Firm founder and highly respected antitrust and competition law veteran Miguel De Dios co-leads the practice with counsel Federico Volujewicz, a former competition agency official, who is the main contact for the implementation of and development of antitrust compliance programmes in Argentina. Experienced associate Juan Martín Salvadores de Arzuaga is also noted.

Practice head(s):

Miguel De Dios; Federico Volujewicz


They are always fully up to date. Super reliable.

Miguel De Dios stands out for his speed of response, seniority, experience and knowledge of the subject.

A firm with a strong competition practice. Despite being a boutique studio, it is one of the leading firms in antitrust filings and also in terms of administrative and judicial actions regarding anticompetitive practices. Its professionals are highly trained and updated.

Key clients

The Walt Disney Company

Whirlpool Argentina


Grupo Tigre

CVN Auto Pecas



Valle de Las Leñas

Consejo Profesional de Ciencias Económicas

Sigsa Argentina

Insight Language Solutions

Work highlights

  • Advised The Walt Disney Company on the anti-trust aspects of the 21st Century Fox deal.
  • Advised The Walt Disney Company on divestiture of its Fox Sports business in Argentina.

Pérez Alati, Grondona, Benites & Arntsen

Pérez Alati, Grondona, Benites & Arntsen advises domestic and international clients on Argentine competition and antitrust regulations, regulatory clearance and approval filings, competition and antitrust litigation, and anti-competitive behaviour investigations. The practice is also called on for support on multi-party cross border matters and is notably active across the telecom, pharmaceuticals, technology, automotive and agriculture industries. Team lead Luis Barry is well known for his expertise in antitrust, competition, product liability and consumer law. Moreover, he has built an increasingly consolidated department: dedicated counsel María Carolina Abdelnabe Vila is another key name, with expertise spanning consumer protection, fair trade, data protection law, product liability and legal technology; with further support provided by Clara Rodriguez Llanos (raised to counsel in January 2023) and semi-senior associate Sonia Del Regno. Since publication, Abdelnabe has been raised to the partnership - effective as of January 2024.

Practice head(s):

Luis Barry


The team is responsive and always provides solid advice. There is a great ability to analyse a topic from different perspectives.

Excellent professionals. I highlight Luis Barry, María Carolina Abdelnabe Vila and Maria Clara Rodriguez Llanos.

The PAGBAM antitrust team stand out in the market in Argentina. They are expert at guiding clients through complex merger that require a merger filing in Argentina.

Luis Barry (partner) and Sonia Del Regno (associate) are standout lawyers in the practice.

Key clients

Dow Group

Fiat Chrysler Automobiles

CVC Corp

Linde plc

La Papelera del Plata (Softys)

Marfrig Group


American Airlines

Mercedes-Benz Camiones y Buses Argentina

Puma Sports Argentina

Work highlights

  • Advised and continues to advise Fiat Chrysler Automobiles on its merger with Peugeot to create Stellantis, the fourth largest automotive group in the world.
  • Advising PBBPolisur in the notification to regulators of several real estate transactions.
  • Advising travel company CVC Corp on the antitrust and competition aspects of its investments in, and OLA.

Baker McKenzie

Baker McKenzie supports clients with antitrust and competition transaction approval applications across multiple jurisdictions, and is known for handling cartel investigations and defences as well as civil and criminal antitrust litigation. Companies also call on the firm for advice and training on compliance with antitrust and competition rules around the world. Team head Esteban Rópolo routinely handles antitrust engagements in addition to leading on international trade and customs matters.

Practice head(s):

Esteban Rópolo


Excellent service. I want to highlight the work done by Esteban Rópolo.

The technical expertise and the business knowledge of partners and their teams is what sets Baker & McKenzie apart. They are true partners, always making the impossible possible, and looking through different alternatives that best suit clients.

Esteban Rópolo has a clear understanding of client needs and priorities. He is confident and his delivery is impeccable. He works on very technical matters and is able to explain them to any audience.

Key clients

Synnex Corporation

Accenture Argentina

Cámara de Industriales Molineros


Colgate-Palmolive Argentina

HP Inc

Grupo Ibérica de Congelados


Rio Tinto


Work highlights

  • Advising Uruguay’s Megapharma on the competition and antitrust aspects of its acquisition of Raymos and Max Vision, two important laboratories in Argentina in the eye care market.
  • Assisting Synnex Corporation on antitrust filings related to its acquisition of Tech Data; a filing concerning the market for the distribution of hardware and software for the IT and telecommunications industry.
  • Representing Cámara de Industriales Molineros in an appeal against a fine imposed by the Competition Commission in a cartel investigation of the wheat milling market.

Bruchou & Funes de Rioja

Bruchou & Funes de Rioja pools together expertise from its litigation and criminal law teams to support clients with fully-integrated coverage of cartel and individual conduct matters. The team also boasts extensive experience across merger-control reviews and conduct cases, and is called on to assist on all the antitrust aspects of M&A transactions and joint ventures. Competition law specialist Gabriel Lozano is sought out by local and international clients and leads the practice, with merger control and conduct investigations two of his most active market segments. Senior associate Dolores Cedrone moved in house in March 2023.

Practice head(s):

Gabriel Lozano


A solid team that quickly understood the particularities of our business and industry. They have been practical and efficient when looking for solutions.

Gabriel Lozano demonstrates excellent knowledge of antitrust authorities, both local and foreign. He understood the particularities of our business very quickly. He is practical and direct, which avoids wasting time.

Excellent professionals, with great knowledge of their subjects and the business. Always looking for innovative solutions to help the client.

Gabriel Lozano is a very good competition lawyer who knows the market well and understands the needs of clients very well.

Knowledge of his specialty and professional contacts with different agencies.

Key clients

Grupo Werthein



Vista Oil & Gas Argentina

Cámara de la Industria Aceitera de la República Argentina

Bakelite Synthetics

CCU Argentina

Banco Industrial and Commercial Bank of China

Coca-Cola Femsa

Grupo Supercablecanal

Work highlights

  • Advised Vista Oil & Gas Argentina on the coordination of regulatory and antitrust filings in the formation of a joint venture with Trafigura Argentina.
  • Advised Compañía Cervecerías Unidas on the antitrust filings related to the acquisition of a controlling stake of Aguas Danone de Argentina.
  • Provided legal counsel in antitrust matters to Los Lapachos following its acquisition of Bizland.

Mitrani Caballero & Ruiz Moreno Abogados

Best known for its experience handling multi-jurisdictional, cross-border competition and antitrust matters, Mitrani Caballero & Ruiz Moreno Abogados assists a global client base with merger filings and antitrust proceedings across Latin America. The team provides regular counsel on commercial behaviour and the avoidance of anticompetitive practices, as well as on the establishment of competition compliance programs and internal investigations. Respected corporate lawyer Aixa Sureda is well-versed in competition and antitrust law matters and co-leads the team alongside Cristian Mitrani, who clients seek out for advice on competition law infringement cases and internal investigations. The team’s second line is led by senior associate Evangelina González Soldo, whose practice covers transactional, antitrust and competition matters.

Practice head(s):

Cristian Mitrani; Aixa Sureda

Key clients


Molinos Rio de la Plata

Bunge Argentina

Adium Pharma




Perez Companc Family


Work highlights

  • Advised Nidera on the merger control clearance in Argentina regarding Syngenta Crop Protection’s acquisition of Nidera’s seed business.
  • Provided Adium Pharma with an advisory opinion regarding interpretation of competition and antitrust law.
  • Advised Raízen on a merger control clearance before the Paraguayan Competition Authority regarding the acquisition of a controlling stake in Paraguayan fuel retailer Barcos & Rodados from shareholders Ortega Echeverría.


Telecoms is a key sector area for O'Farrell, which leverages its specialist expertise in the sector to support clients on antitrust and competition matters. The team is also strong in other regulated industries – including energy, utilities and infrastructure – where it advises on industry-specific competition and regulatory matters. Telecoms and energy lawyer Agustin Siboldi, who has extensive antitrust expertise, is the main contact for competition law matters.

Practice head(s):

Agustín Siboldi

Key clients

Cámara Argentina de Internet

Villa María City’s gas stations

Ford Argentina


Amarillas Gas

Cañuelas Gas

Naturgy Spain

YPF Energía Eléctrica

Claro Argentina

Qatar Airlines

Latinoamericana de Energía


RPB S.A. Baggio

Work highlights

  • Represent Claro Argentina before administrative and judicial authorities to challenge the merger between Telecom Argentina and Cablevision Fibertel.
  • Advising a group of filling stations on an investigation into an alleged cartel.
  • Advised Cabase on a claim against TYC Sports for indirect refusal to deal in connection with the assignment of content from the 2022 FIFA World Cup.

Salaverri, Burgio & Wetzler Malbran

Salaverri, Burgio & Wetzler Malbran covers the competition and antitrust aspects of all M&A deals it advises on, and is also regularly called on to act solely as Argentine antitrust counsel on complex multi-jurisdictional M&A transactions. Team lead Tomás Arnaude has a strong antitrust, corporate M&A and private equity practice. Fellow transactional-focused partner Elena Sozzani provides key support and acts on a variety of antitrust matters.

Practice head(s):

Tomás Arnaude

Key clients

Pampa Energía


Grupo ST

Work highlights

  • Counsel to the purchasers on the mandatory antitrust filing with the Argentine Antitrust Authority -as per the terms of Section 7, subsection b) of Law No. 27,442- concerning the acquisition of the Barragán thermal power plant from Integración Energética Argentina.
  • Counsel to Pampa Energía on the acquisition of Vientos Solutions and associated clearance and mandatory antitrust filing with the Argentine Antitrust Authority.
  • Counsel to GST on the acquisition of Life Seguros de Personas y Patrimoniales and the associated clearance and mandatory antitrust filing with the Argentine Antitrust Authority.

Wiener Soto Caparrós

Wiener Soto Caparrós assists clients with M&A clearances, government investigations into unlawful competition restraints, litigation involving complex antitrust issues, risk management planning, and antitrust compliance and training. The team works with clients from across a range of sectors and has experience coordinating regional antitrust reviews in Latin American markets. Practice head Mariela Del Carmen Caparros has extensive antitrust experience, having worked on long-running, high stakes antitrust cases.

Practice head(s):

Mariela del Carmen Caparrós

Key clients

Coca-Cola Andina Argentina

RAGT Semences


McCain Argentina

Jones Day

Work highlights

  • Assisted Maxiconsumo on navigating the different resolutions issued by the National Government in connection with the “Shelf Law”, as well as advising the client on its effects on their business.
  • Advised on the antitrust aspects of RAGT Semences’s acquisition of Argentine seed breeder Tobin.
  • Advised McCain Argentina on antitrust compliance matters, focusing on new regulations enacted in 2022 regarding consumer protection, price caps and the use of shelf space in supermarkets.

Brons & Salas

The multidisciplinary team at Brons & Salas provides advice on merger controls, defending deals before antitrust authorities, behavioural matters and antitrust compliance and training. The team includes a mix of lawyers and economists who work with companies across a range of sectors, including viticulture, automotive, insurance, media, advertising and pharmaceuticals. Cross-border deal expert María José Rodríguez Macías leads on all antitrust and competition law matters.

Practice head(s):

María José Rodríguez Macias

Key clients

Grupo Peñaflor

Godrej Consumer Products

Toyota Compañía Financiera de Argentina

Compañía Argentina de Levaduras

Clorox Argentina

Cook Agriculture Inc.

Discovery Communications

Praxair Argentina

Schaeffler Argentina

Kimberly Clark Argentina


Martínez de Hoz & Rueda

Martínez de Hoz & Rueda represents companies before Argentine Antitrust Authorities and is frequently called on to advise clients on transactional filings and merger clearances. Juan Cruz Azzarri, an experienced administrative and constitutional law specialist, is the main point of contact.

Practice head(s):

Juan Cruz Azzari

Tanoira Cassagne Abogados

Tanoira Cassagne Abogados’s competition department covers all antitrust matters including antitrust behaviours, merger notifications and litigation. The team is particularly noted for its antitrust investigations and litigation work in the petrochemical, pharmaceutical and retail sectors. Merger-control filings for national and cross-border deals are also covered, with preventative advice on antitrust practices offered too. Partners Francisco Rondoletti and Bernardo Cassagne lead the practice.

Practice head(s):

Bernardo Cassagne; Francisco Rondoletti


Continuous attention and practicality, and good market knowledge of various industries. Timely and proactive advice.

Tanoira Cassagne is always ahead of the news, allowing clients to make agile decisions and anticipate changes.

They are agile, they are prepared and they always give support, generating peace of mind for their clients.

Impeccable, excellent.’

Key clients



Bayer Argentina

Nestle Argentina

Saint Gobain

Coca Cola

Bridgestone Argentina

3M Argentina



Work highlights

  • Advised Remax Argentina on matters related to an abuse of dominant position complaint involving the Associations of Public Brokers and Auctioneers of the City of Buenos Aires.
  • Advising Experta ART on a cartel investigation against several labour insurance companies for price fixing.
  • Advising Petersen Thiele y Cruz/Nestor Julio Guerechet on an antitrust agency investigation into bid rigging allegations against various construction companies.

Tavarone, Rovelli, Salim & Miani

Tavarone, Rovelli, Salim & Miani’s recently established antitrust practice covers the full range of competition issues, focusing on pre-merger strategy analysis and merger control issues. Since launch, the practice has worked on several regulatory approval and antitrust authority filings. Antitrust investigations involving government agencies are also covered. M&A lawyer Julián Razumny leads the practice and has developed strong expertise across antitrust, pre-merger analysis and merger control issues. Associate Paula Cerizola provides primary support.

Practice head(s):

Julián Razumny


Julián Razumny is a great lawyer who is beginning to generate a solid antitrust practice.

A great team that is always looking for solutions according to the needs of the client.’

The practice is led by Julián Razumny, who is a partner with solid experience and knowledge. We recently worked on a complex matter and his contribution was invaluable to our clients. He has a practical and direct approach to addressing issues and proposing solutions. Likewise, he has an associate lawyer who also has a lot of experience in the matter, Paula Cerizola, who helps in all practical and substantive issues to advise her clients.

Julian Razumny and Paula Cerizola: excellent professionals, with great knowledge of their subjects and the business.

Key clients

SCC Power




Work highlights

  • Counsel to SCC Power on filings submitted to local antitrust authorities to obtain clearance for the acquisition of the business enterprise of Stoneway Capital Corporation.
  • Advised Santista Argentina general market investigation initiated and conducted by the Antitrust Authority.
  • Advised Orazul Energy on the antitrust aspects of arbitration initiated against the government of Argentina under ICSID rules, for a breach of the Argentine-Spain bilateral treaty of investment.