Public law in Argentina

Beccar Varela

Beccar Varela handles a variety of public law work at the federal, provincial and municipal levels for clients in the transportation, infrastructure, life sciences and technology sectors, among others. The team’s expertise ranges from public procurement, bid processes, public works, infrastructure concessions and public-private partnerships (PPPs), to government contracts, public finance, zoning and highly regulated industries. The firm is also well-versed in contentious public law litigation, handling administrative and judicial review procedures including injunctions, class actions, and appellate reviews. Juan Antonio Stupenengo focuses on constitutional, administrative and regulatory law and co-leads the practice with Oscar Valdez, who focuses on public procurement, infrastructure concessions and PPPs. Administrative and regulatory law-focused associate Juan Pablo Perrino is another key name, as is Santiago Barbarán, who has wide-ranging public sector experience.

Practice head(s):

Oscar Aguilar Valdez; Juan Antonio Stupenengo


Unlike other firms, the lawyers of Beccar Varela put themselves in the client’s shoes, try to understand their needs and provide a tailored service solution. Other offices tend to discard all those requirements that do not match their standard service specification.

Juan Antonio Stupenengo is a young professional who knows how to listen to the client and achieve the proposed objectives.

Key clients

Globenet Cabos Submarinos


Banco de Galicia y Buenos Aires



HJ Heinz

Cámara Argentina de Especialidades Medicinales

APR Energy

Leoncio Arizu

Mercado Libre

Work highlights

  • Represented Globenet Cabos Submarinos and Facebook in a dispute against Municipality of La Costa regarding an authorisation fee to start the operation of a cable landing station that connects a submarine cable linking Argentina, Brazil and the United States.
  • Advised WhatsApp on an investigation opened by the Federal Competition Commission regarding terms of service and privacy policy.
  • Legal assistance and representation of Banco de Galicia y Buenos Aires  in a litigation before the Federal Supreme Court of Justice related to the annulment of a provincial judgement.

Cassagne Abogados

Boutique firm Cassagne Abogados has a strong administrative and public law track record, with constitutional law, economic regulation and complex litigation particular standout areas of expertise. The team is also called on for support on public contracts, infrastructure projects and arbitrations. One of Argentina’s most experienced public practitioners, founding partner Juan Carlos Cassagne co-leads the team alongside Máximo Fonrouge, who has more than four decades of administrative law experience; seasoned administrative law expert Pablo Perrino; and Ezequiel Cassagne, a well-know litigator and administrative law specialist. The practice group houses a deep bench of talent that also includes partners Juan Pablo Martini (who leads on regulatory matters), Juan Carlos Sanguinetti (the primary contact for competition law), and Pablo Daniel Sanabria (administrative sanctioning).

Marval O’Farrell Mairal

One of the largest and most experienced public law-focused teams in Argentina, Marval O’Farrell Mairal is sought out by local and international clients for its deep expertise across a wide range of administrative and public law matters. The team handles public-private partnerships (PPP) and big ticket infrastructure projects, and has assisted a number of clients to navigate public procurement processes and secure or renew major government tenders and concessions. Sensitive regulatory negotiations, subsidies and supply deals are also areas of activity for the practice group, as are public law disputes work  – including contentious tariff annulments, and Central Bank-regulation and concession-contract disputes. The team is also active in investment disputes and international arbitration proceedings involving the state. Public ethics and the public law aspects of M&A are other areas of expertise. The formidable Héctor Mairal is one of the country’s foremost administrative law experts and co-leads the team with experienced administrative practitioner María Lorena Schiariti and Enrique Veramendi, a regulatory and administrative specialist who also undertakes constitutional and administrative litigation. The practice draws on a strong bench of supporting talent, including experienced dispute resolution partner Gonzalo Santamaria, and associates Milagros Ibarzábal (supply agreements) and Sofia Cimmarusti (public contracts and procurement).

Practice head(s):

Héctor Mairal; María Schiariti; Enrique Veramendi


An extraordinary team. Absolutely committed to the client, rigorous to the maximum and creative.

Enrique Veramendi, Hector Mairal, Ricardo Ostrower and Julio Cesar Rivera standout for their rigour and quality.

Marval are excellent lawyers. They know the law in theory and practice and they are very easy to work with.

I have worked with Enrique Veramendi and I cannot recommend him highly enough.

Key clients

Autopistas del Sol


DEME Group

Mitsubishi Electric Corporation

Grupo Concesionario del Oeste

GE Healthcare

Netflix Argentina



Abertis Infraestructuras


Pedidos Ya

Consorcio ART






General Motors

Mercedes Benz

Loma Negra – Ferrosur


Puma Argentina

Arcos Dorados

Compañía Mega

Mercado Libre

Work highlights

  • Representing and advising Autopistas del Sol and Grupo Concesionario del Oeste in relation to high-profile judicial and ICC arbitration proceedings related to the potential nullification of concession contracts.
  • Assisting Dredging International with challenging its initial disqualification from an Argentine Port Authority bidding process for acquisition of dredging services of the Paraná–Paraguay waterway.
  • Assisting Mercado Libre with challenging an Argentine Central Bank regulation requiring financial entities to record e-wallet deposits with the Central Bank.

Allende & Brea

Allende & Brea’s public law team is called on for support across a wide variety of public procurement, administrative and environmental law matters, and is well known for handling public finance mandates, litigation and M&A-related public law work. Engineering, construction and infrastructure are key segments. Practice head Maria Morena Del Rio is actively involved in public works and infrastructure projects, and is particularly well-versed in procurement proceedings, public contracts' claims, dispute procedures, judicial reviews and regulatory advice. Respected corporate partner Diego Botana, who is recognised for the depth of his expertise in the niche area of company constitutional rights in highly regulated sectors, is also available to the team. Key associates Vanesa Fernandez (administrative and regulatory law) and Lucrecia Re (public contracts, procurement, administrative law and judicial procedures) lead the second line.

Practice head(s):

María Morena del Río


They always respond in a timely manner and present proactive ideas and with good judgement.

Allende & Brea’s public law team is comprised of highly trained, solid lawyers. María Morena del Río, is a lawyer of recognised prestige in the field. She is very professional and solid in her knowledge.

They work in a very organised way and stand out for their dedication to the client and their cordial and warm treatment.

Key clients

Novartis Argentina

Hughes Networks – Echo Start

American Airlines

Mastercard Cono Sur

CSL Behring

Compass Group

Elena Bonatti


Globalsat Argentina

Thermo Fisher Scientific

Aspen Global

Ferrero Argentina

LSG Sky Chefs Argentina

Metlife Inc

Metlife Servicios

Metlife Seguros de Retiro

Andesmar Cargas

Minera del Altiplano

Tempus Labs

Biotronik Argentina

FMC Química

Vertex Pharmaceuticals Europe

Van Hessen

Grupo NC

HBO Latin American Group

Sherwin Williams

Ball Corporation



Vaisala OYJ

The Kellogg Company


Galicia Seguros

Work highlights

  • Assisted Saab Dynamics with the negotiation and drafting of a military equipment supply agreement with the National Ministry of Defence and the Joint Staff of the Armed Forces.
  • Provide Biotronik with general advice on regulatory and administrative matters, including preparation of tender documents.
  • Advises Thermo Fisher Scientific on the delivery of administrative contracts signed with governmental bodies.

Baker McKenzie

Public litigation and regulatory risk mitigation are key focus areas for Baker McKenzie’s public law team, which covers a range of public law work, including state expropriation and public procurement. The practice is especially strong on matters involving the pharmaceuticals industry, where it has represented clients in several administrative and judicial proceedings related to orphan drug pricing and unilateral price regulation; as well as in the handling of liability and regulation with regard to social media. Team head Luis Dates  is an experienced public and administrative law practitioner. Complex litigation, arbitration and regulatory risk-focused partner Santiago Maqueda is the other key senior-level contact.

Practice head(s):

Luis Dates


It is pleasantly surprising me how much they know about the businesses they advise and how committed they are to understanding the complexity of the market and environment.

They are a great team because they complement each other. Luis Dates always gives the correct litigation strategy and Santiago Maqueda brings outstanding skills in administrative and antitrust laws.

The best qualities are teamwork and the pragmatic answers they provide.

Key clients







Procter & Gamble




China Triumph International Engineering Co




Boston Scientific

Work highlights

  • Completed a three-year long representation of Biogen Argentina in several administrative proceedings.
  • Advised Merck’s local subsidiary MSD Argentina on preparing its contractual arrangements for selling products to the Argentine government, through a joint venture with local laboratory Sinergium Biotech.
  • Representing Honeywell against the Province of La Rioja in relation to the expropriation of an industrial plant owned by a local subsidiary.


Administrative proceedings and complex disputes that come before federal and provincial courts are particular areas of strength for Bomchil, which is equally comfortable working on public bids, administrative appeals and constitutional actions (amparos); as well as public-private partnerships (PPP), contract terminations, privatisations and renewable energy power purchase agreements. The team’s wider expertise in the electricity, energy and transportation industries makes it a go-to public law adviser for companies in these sectors, but it is also recognised for its mining, telecoms and utilities experience. María Inés Corrá has advised on disputes, tariff reviews, natural gas export restrictions, regulatory licenses, subsidies and concessions during a public law career spanning more than two decades. She leads the practice together with telecoms partner Francisco Gutiérrez and long-serving regulatory and administrative law specialist Federico Campolieti.

Practice head(s):

Francisco Gutierrez; María Inés Corrá; Federico Campolieti


An organised team that is attentive to specific and complex queries. Committed to teamwork.

Key clients

APM Terminals

Massalin Particulares (Philip Morris International)

Minera Los Pelambres

Desarrollo de Proyectos Mineros

Aeropuertos Argentina 2000


Tallo Verde

Araucaria Energy

Unitec Blue

Four Seasons Hotel

Wintershall DEA Argentina

Work highlights

  • Advised APM Terminals on regulatory and disputes’ matters related to operation of the Buenos Aires port.
  • Assisting Tallo Verde with the filing of several parallel claims before courts, administrative bodies and international bodies regarding an open air waste dump and urban waste disposal facility.
  • Advising Corporación América/Helport on the renegotiation of a contract with the Argentine government for the construction of the hydroeletric plant Chihuido I.

Bruchou & Funes de Rioja

Well known for the depth of its oil-and-gas and utilities expertise, Bruchou & Funes de Rioja supports clients in these and other sectors on a wide range of public law matters, encompassing regulatory advisory; concessions; expropriations; public procurement; complex disputes and litigation before administrative authorities, courts, and arbitral tribunals. The team strengthened its senior leadership with the April 2022 promotion of regulatory specialist Juan Zocca to the partnership. He now co-leads the practice with established dispute resolution and public law partner Ignacio Minorini Lima. The practice can also draw on the vast experience of administrative and regulatory law of counsel, Carlos De Kemmeter; while Maria Laura Rozan – whose practice encompasses various regulated industries – is the main contact at associate level.

Practice head(s):

Ignacio Minorini Lima; Juan Zocca


The partners are constantly involved and and ready to solve our needs. The immediate and very professional response stands out above all.

The team has a proven professional quality and is very empathetic to our needs.

Bruchou is my go-to firm in Argentina. Bruchou’s partners are highly sophisticated and leaders in their field. I am greatly impressed by the quality of their advice.

Ignacio Minorini is a star in international arbitration. He is one of the smartest lawyers I have come across. He combines deep substantive knowledge with creative thinking and analytical skills. A great advocate.

In-depth knowledge of Argentine public law and interaction with public international law. The team is extremely practical and very user-friendly.

Ignacio Minorini Lima is an outstanding lawyer with excellent knowledge of public law and great attention to detail. He think strategically and advises pragmatically. Plus a pleasure to work with. Maria Laura Rozan is a rising star with an encyclopaedic knowledge of public law.

Bruchou is my go-to firm in Argentina. Bruchou\’s partners are highly sophisticated and leaders in their field. I am greatly impressed by the quality of their advice. The Bruchou team is second to none in Argentina.

Beyond the proven professional quality expected from this Firm, all its professionals, from Partners to Juniors, are very empathetic with our needs. Juan Zocca (partner), Carlos De Kemmeter (of counsel), M Laura Rozan (semi senior) Manuela Bertone, truly remarkable.

Key clients



AES Corp / AES Argentina




Bunge Argentina


América Latina Logística

Banco Macro


Holcim Argentina


Facimex Valores

WeFIV Argentina



Laboratorio Elea Phoenix

Werthein Group

TMH Argentina



Proficio Investments

Vista Oil & Gas

Orígenes AFJP


Newsan Group

Brubank SAU

Lemon Cash

Consejo Federal de Inversiones

Grupo Albanesi

Molinos Río de la Plata

Merrill Lynch Argentina

Work highlights

  • Advised Grupo Werthein on the acquisition of Vrio Corp from AT&T, coordinating all regulatory filings across various jurisdictions.
  • Acted as Argentine counsel representing AES Corporation against the Argentine Republic in an ICSID claim related to AES’s investment in several power generation companies.
  • Acting as lead counsel representing Orígenes AFJP in its claim against the Argentine government in connection with the nationalisation of its pension fund business in 2008.

Mitrani Caballero & Ruiz Moreno Abogados

Mitrani Caballero & Ruiz Moreno Abogados represents clients in a variety of complex public-law related M&A transactions, infrastructure project financings, international public tenders and disputes. All major regulated industries are covered, including the pharmaceuticals, chemicals, natural resources, transportation and automotive sectors. The team’s expertise in government contracts at federal, provincial and municipal level is particularly notable, as is its work in regulatory disputes, nationalisations and expropriations. The practice is led by Horacio Ruiz Moreno, a public law authority with decades of administrative law and dispute resolution experience. He receives senior level support from veteran practitioner Rafael González Arzac, who has broad administrative law, public contracting and public services regulation expertise; Néstor Buján, a specialist in litigation and administrative, regulatory and competition law; and versatile administrative, environmental, and regulatory lawyer Gustavo Cedrone.

Practice head(s):

Horacio Ruiz Moreno

Key clients


Hutchison Port Holdings



Ledesma Renovables

Maersk / Svitzer


Grupo Lamosa

Fratelli Branca

Echo Energy

Central Puerto

Holcim Argentina



AGCO Argentina

Lithium Power

Bunge Argentina

Universidad Torcuato Di Tella

Instituto Tecnológico de Buenos Aires

Molinos Río de la Plata

Molinos Agro


UPL – Arysta

Deutsche Ruchversicherung

Robert Bosch Argentina Industrial



Minera del Altiplano

Mansfield Minera

Lithium Power

JT International

Laboratorios RAFFO

Irkutsk Oil Company

Ilumino Technologies

Grupo Alfa

Coordinadora de las Industrias de Producción de Alimentos

Adium Pharma


Nabiax – Digital Holdings Argentina

Quiver Tree Collection

Work highlights

  • Advised China National Nuclear Corporation on all regulatory and public law matters relating to work on  the NB Nuclear Power Project led by Nucleoeléctrica Argentina.
  • Advised Livent on the $640m expansion of its lithium processing plant in the Salar del Hombre Muerto, including support on construction and services-related contracts.
  • Advising Deutsche Rückversicherung on a dispute against the Argentine federal government regarding the recognition and enforcement in Argentina, of an international arbitration award issued in New York.


O'Farrell’s significant experience in highly-regulated sectors such as electricity and telecoms has seen the firm develop strong expertise across a broad array of public law matters, including public works, infrastructure, public procurement, tariff regimes, and dredging and maritime law. In addition, the firm is strong in contentious matters, representing clients in judicial proceedings at all levels. Jorge Muratorio leads the practice and advises clients on litigation in heavily regulated markets and public services. Specialist public law and regulation partner Agustina Fanelli Evans is another key senior name, with associate Ana Belén Micciarelli fronting the second line.

Practice head(s):

Jorge Muratorio


Jorge Muratorio is a prestigious and recognised lawyer in administrative law. He understands the client’s needs and he is very flexible.

Excellent professionals. They advise us on everything in a very good way.

They act with professionalism and work hard to understand the companies they work with.

Key clients



Unipar Indupa

Inter-American Development Bank

Pampa Energía

AMX Argentina

Naturgy Argentina


Fundación Torcuato Di Tella

Grupo Moscuzzza


ENAEX Argentina

Siemens Mobility

Ford Argentina

Pasco Tenis Paddle

Work highlights

  • Worked with the Inter-American Development Bank (IADB) to prepare a report on the challenges to contracting procedures in the Agua y Saneamientos Argentinos project.
  • Advised Medicus on the billing by the City of Buenos Aires for Covid-19 testing.
  • Represented Naturgy Ban and Gasnor in four arbitration claims before a local arbitration court.

Brons & Salas

The electricity and green hydrogen industries are among the key focus areas for a Brons & Salas public law team that handles a wide range of administrative and regulatory law matters. Litigation, arbitration, tendering processes, administrative procedures and contracts with all levels of government are also regularly handled. Electricity and litigation expert Sebastián Alvarez has more than 25 years' experience handling public law matters. He co-leads the practice alongside litigation and arbitration expert Joaquin Vallebella, with customs and administrative law partner Lorena Bartomioli another key senior contact.

Practice head(s):

Sebastián Alvarez; Joaquín Vallebella

Key clients

Compañía Administradora del Mercado Eléctrico Mayorista (Cammesa)

Inspection and Control Services


Grupo Peñaflor

Papel Prensa

The Clorox Company

Provincia de Misiones

Shandong Gold

Fortescue Metals Group

Mercedes Benz Argentina


Farallon Capital Management

Gallifrey Foundation

Solar Turbines International Company

Work highlights

  • Supporting Solar Turbines International in preparing a bid for the supply of two turbochargers to the Tratayén and Salliqueló compressor stations of the President Néstor Kirchner gas pipeline.
  • Advised Cammesa on a dispute regarding a contract termination.
  • Advised Clorox Argentina on several public policy matters related to the application of regulations regarding the maximum prices of goods and services

Hope, Duggan & Silva

Hope, Duggan & Silva handles complex regulatory matters across the power, gas, natural resources, ports and railway industries, among others. Clients turn to the practice for advice on bilateral investment treaties, lawsuits to suspend bidding processes, tariffs and expropriations. Partner Hugo Vivot is an experienced public law practitioner and leads the department.

Practice head(s):

Hugo Vivot


What makes the practice unique is the high knowledge of administrative public law. They are always available at any time and provide clarity on billing.

Hugo Vivot is an excellent professional. Always attentive and willing to help.

A specialist team working with regulated companies. Great commitment and attention. Active participation of the partners.

Key clients


Pyxus International

Banco Bilbao Vizcaya Argentaria (BBVA)

International Container Terminal Services


VR Capital Group

Los Antilopes

Hochschild Group

Almacenes Exito

Orient Shipping Rotterdam/Van Weelde Group

Work highlights

  • Represented International Container Terminal Services (ICTSI) and its local subsidiary, Tecplata, in an array of legal actions under public and administrative law aimed to prevent the renewal of an existing concession to the current concessionaire of the Port of the City of Buenos Aires, and the need to call for a new international call for bids.
  • Representing Xylem in public bids called for by national, provincial and municipal governments.
  • Advised BBVA in connection with the bilateral investment treaty breach between the Spain and Argentina.

Martínez de Hoz & Rueda

Martínez de Hoz & Rueda leverages its deep expertise in the highly regulated hydrocarbons and electricity sectors to deliver advice across a variety of public law matters, including concessions, licenses, authorisations and representations in public tenders. The team also has strong dispute resolution capability, assisting and representing clients in various administrative, judicial and arbitral proceedings. Juan Cruz Azzarri has extensive experience across public law, public utilities, public contracts and infrastructure matters. He co-leads the practice with managing partner Jimena Vega Olmos, whose practice encompasses public law, international arbitration, infrastructure, power and project financing.

Practice head(s):

Juan Cruz Azzarri; Jimena Vega Olmos

Nicholson y Cano Abogados

Nicholson y Cano Abogados handles advisory and contentious public law matters and is frequently sought out by clients for support in sensitive litigation against federal, provincial and municipal governments before all courts. The team’s expertise also extends to government contracts, procurement, public bidding processes, public-private-partnerships and concessions, with infrastructure and natural resources key segments for the practice. The team is co-led by veteran litigator and administrative law expert Lucas Piaggio; infrastructure and public law specialist Eduardo Koch; and Martín Rodriguez, who handles administrative, constitutional and environmental law, notably in relation to public services, economic regulation and bidding processes.

Practice head(s):

Lucas Piaggio; Eduardo Koch; Martín Rodriguez


The team is committed, assertive and efficient.

They have experience and knowledge of the market. Eduardo Koch is worthy of special recognition.

Highly competent professionals, with an outstanding level of dedication and attention.

Lucas Piaggio is a prominent professional in the area of public law. Martín Rodriguez is a professional with a high level of commitment and dedication.

Key clients



Banco Hipotecario






Banco Comafi


Acciona Agua

Acciona Airport Services

Acciona Construcción


Pedidos Ya (Delivery Hero)

Telefónica de Argentina


Pérez Alati, Grondona, Benites & Arntsen

Pérez Alati, Grondona, Benites & Arntsen’s public law team handles a wide range of work, including representations in public procurement proceedings before federal and provincial governments, advice on concessions, licensing and regulatory compliance. The team is particularly sought out for its expertise in regulatory and supply contract matters in the pharma, medical and biotech sectors, as well as the heavily regulated financial services industry, and has developed a niche NGO practice too. Promoted to the partnership in 2022, Nicole Jaureguiberry leads the practice, with key support coming from associate Luciana Casagrande. Former fellow associate Joaquín Ojeda Goncalves left the firm in November 2022.

Practice head(s):

Nicole Jaureguiberry


It is a close team that is always in contact with the client and takes the initiative.

Nicole Jaureguiberry is works closely with clients.

Key clients


Old World Industries

Google Inc /Google Argentina

Johnson & Johnson Medical

Betfair (Flutter Entertainment)

Santander Río

Rewilding Argentina

China Unicom

Globe Metales

United Airlines

Un Techo para mi País

Sumitomo Chemical Co / Sumitomo Chemical Argentina

Puma Sports Argentina

Club Harrods


JP Morgan Chase Trading

Perez Companc Family Group


Louis Dreyfus Commodities

Phoenix Global Resources


Molinos Rio de la Plata


Bodegas Esmeralda

Consorcio de Propietarios Panamericana 1050


Mercado Libre

Naviera Sur Petrolera

Orazul Energy

Janssen Cilag Farmaceutica

TEVA- Ivax

Forestal Bosques del Plata

La Papelera del Plata

Dow Argentina / PBB Polisur


Glenmark Generics


Casa Pirque

Solana Deutschland

Fabi Bolsas Industriales


Wintershall Energía

China Development Bank

Ansaldo Energía


Inversiones Meliquina


Lilac Solutions


Los Grobo


Work highlights

  • Represented the China Development Bank regarding a credit facility agreed with the Argentine government to fund works on the Belgrano Cargas Railway rehabilitation project.
  • Advised Lilac Solutions on the award of mining prospecting and exploration rights in the province of Salta.
  • Advised a client on the closure of a concession for towing vehicles in Buenos Aires.

Pozo Gowland Abogados

Pozo Gowland Abogados is well known for its expertise in the negotiation and execution of public services contracts, as well as public law-related disputes and arbitration work. Energy, public services, infrastructure and construction are the most active segments for the team, which is is co-led by respected public services and infrastructure partner Héctor Pozo Gowland ; construction and real estate lawyer Esteban de Vedia; and Carlos Miná, who undertakes administrative and regulatory law matters, particularly in relation to public services.

Practice head(s):

Héctor Pozo Gowland; Esteban de Vedia; Carlos Miná


This is a very dynamic practice, especially on sectoral regulatory aspects. This requires ongoing, up-to-date training, which is noticed in the lawyers on the team.

Partners Hector Pozo Gowland and Carlos Mina stand out for their responsibility, honesty and commitment.

Key clients


Camuzzi Gas del Sur

Camuzzi Gas Pampeana

Caminos del Rio Uruguay






Constructora Sudamericana

Hidroeléctrica Chocón

Integración Energética Argentina




Norte Grande Eléctrico







Transportadora de Gas del Sur



Andriani Logística

Correo Andreani

Aurelia Vial

Camargo Correa



Central Costanera

Hidroeléctrica Chocón

Compañía de Transmisión del Mercosur

Transportadora de Energía

Pampa Energía







Central Térmica San Martín

Central Térmica Manuel Belgrano


Work highlights

  • Advised Caminos del Río Uruguay, a national road concessionaire, on a lawsuit requesting the recession of its contract and compensation for damages.
  • Advising Gasnea on the revocation of an agreement for the construction of distribution networks.
  • Advised and prepared an administrative claim on behalf of Camuzzi Gas Pampeana and Camuzzi Gas del Surprior related to rates.

Tanoira Cassagne Abogados

Tanoira Cassagne Abogados assists local and international companies on a range of public law matters, including advice and representation in public bids, administrative procedures and litigation. The firm also offers advice on specific regulatory legal frameworks governing the telecoms, energy, oil-and-gas, construction and digital industries, among others. Experienced administrative law partner Bernardo Cassagne has handled numerous bidding processes and privatisations; he co-leads the practice with trade and regulatory partner Francisco Rondoletti, and associate Ignacio Gonzalez Zambón, who handles public tenders and disputes. Since publication, Gonzalez Zambón has been raised to the partnership - effective as of March 2024.

Practice head(s):

Bernardo Cassagne; Francisco Rondoletti; Ignacio Gonzalez Zambón

Key clients






TFCF Latin American Channel

Saint Gobain


Banco Galicia









Cámara de Sanidad Agropecuaria y Fertilizantes

Asociación de Fabricantes de Cemento Portland

Líneas Delta Argentino


Work highlights

  • Advised Remax on challenging municipal regulations preventing the opening of commercial offices.
  • Advised BASF on fines imposed by the Buenos Aires Province Environmental Regulatory Agency (OPDS) related to non-compliance with environmental obligations.
  • Advised Banco Galicia on several public tender proceedings and public agreements with public universities, and provincial and local entities.

Tavarone, Rovelli, Salim & Miani

Tavarone, Rovelli, Salim & Miani advises clients in the railway, road transport, telecoms and oil-and-gas sectors on a wide range of public law matters, including procurement, complex infrastructure contracts, public bids and everyday regulatory and compliance work. The disputes arm of the team is also active, with the firm representing clients across administrative, arbitration and judicial proceedings at all levels. Administrative law expert Nicolás Eliaschev, who has a particularly strong energy practice, leads a team that houses a talented bench of senior associates, including Javier Constanzó (public law, energy and infrastructure) and Daiana Perrone (renewable energy, PPA, infrastructure projects and bidding processes).

Practice head(s):

Nicolas Eliaschev

Key clients


Mercado Libre

Loma Negra




Enel Generación el Chocón


Soenergy Argentina

Central Puerto

Work highlights

  • Advised Orazul on an ICSID arbitration with the Argentine government related to two major thermal and hydropower facilities
  • Advising Ferrosur on a long-term concession contract executed with the national government.
  • Advising Loma Negra on a highly complex infrastructure project, including aspects of an associated EPC contract.

Estudio Ymaz Abogados

Estudio Ymaz Abogados is recognised for its specialist infrastructure expertise and is frequently sought out for its extensive experience advising on complex contracts and contract terminations. Local and domestic utility, energy and road construction companies are particularly important client groups who frequently work with the firm on high-value advisory and contentious matters. The vastly experienced disputes and arbitration lawyer Esteban Ymaz Videla serves as practice head, with associate Beltrán Gorostegui the main support.

Practice head(s):

Esteban Videla


The firm’s team is made up of young lawyers with enthusiasm and dedication, and the most experienced partners, who are also always willing to address clients’ concerns.

The Estudio Ymaz team is characterised by professionalism and deep commitment to each job.

Estudio Ymaz has significant experience and track record in the field. The work of all the professionals on the team is highly recommended.

Key clients




Correo Oficial de la República Argentina

Constructora San José – Tedagua

Ludwig Pfeiffer Hoch-und Tiefbau

CCA Green


Terminales Río de la Plata


CAF Signalling

Instituto Fueguino de Turismo

Work highlights

  • Advised national road concessionaire Corredor de Integración Pampeana on a dispute with the National Roads Authority over the final settlement of the concession.
  • Advised Dycasa on a claim related to the construction of National Route No. 19 for the National Roads Authority.
  • Advising CAF Signalling on the analysis of the various contractual defaults by ADIF.

Zang, Bergel & Viñes Abogados

Zang, Bergel & Viñes Abogados has considerable experience across all types of public procurement matters, including PPP projects, joint-ventures, public infrastructure and public property concessions. Public contractors and clients in highly regulated sectors also call on the team for assistance with administrative procedures related to securities regulation, competition, foreign exchange matters and environmental issues, as well as representation in public law litigation before the courts and in arbitral proceedings. Experienced compliance and public law partner Ignacio Sanz  leads the team, with corporate and litigation-focused senior associate Clara Minieri providing primary support.

Practice head(s):

Ignacio Sanz

Key clients

IRSA Inversiones y Representaciones

Argentina Fortescue Future Industries


Dark Star Group Risk Consultancy

Poseidon Group

Compañía General de Combustibles


Rafael G Albanesi

Minera Argentina Gold

Parque de la Costa

Work highlights

  • Advised IRSA on public law issues related to the $1.8bn Costa Urbana project.
  • Advised Fortescue on federal and local public and regulatory laws for a green hydrogen project.
  • Advised Dark Star on matters related to security services regulation, intelligence-collection regulations and other public law issues.