Public law in Argentina

Beccar Varela

Beccar Varela provides specialised public law advice to local and international clients in a range of sectors, including transportation, infrastructure, the life sciences and technology. The ‘excellent’ team is one of the ‘best in the country’ and handles a variety of work at the federal, provincial and municipal levels. Areas of expertise include public procurement, bid processes, public works, infrastructure concessions and public-private partnerships (PPPs). The team also advises on matters involving government contracts, public finance, zoning and highly regulated industries. Juan Antonio Stupenengo (highlighted for his ‘technical skills’) co-heads the practice alongside veteran practitioner Oscar Aguilar Valdez, who has extensive public law and disputes expertise. At senior associate level, Juan Pablo Perrino stands out for his ‘technical and practical knowledge’, while Santiago Barbarán brings his public sector experience -at both provincial and national levels- to bear.

Practice head(s):

Oscar Aguilar Valdez; Juan Antonio Stupenengo


‘The best administrative law team in the country.

‘Beccar Varela’s Public Law team is excellent. The technical skills of Juan Antonio Stupenengo and the senior associate Juan Pablo Perrino are exceptional.

‘Juan Pablo Perrino has technical and practical knowledge that really makes a difference. He really understands the needs of the client.

Key clients

Vial Andes 7

Mercado Libre


Rovella Carranza

Sanofi Aventis Pharma

Saur International

Cámara Argentina de Especialidades Medicinales

DiDi Chuxing

Aerolíneas Argentinas

Banco de Galicia y Buenos Aires

Work highlights

  • Assisted Vial Andes 7 with the early termination of a large public private partnership (PPP) highway contract already entered into with the Federal Highway Administration.
  • Supported Mercado Libre in negotiations with Corporación del Mercado Central de Buenos Aires (a publicly-owned entity), regarding new concession rights to extend and develop Mercado Libre’s distribution centre.
  • Assisted Sanofi Aventis Pharma with the execution of public contracts entered into with PAMI and IOMA — federal and provincial social assistance agencies (respectively) for retirees and pensioners— for the provision of medicines.

Cassagne Abogados

Undoubtedly the foremost boutique in the administrative and public law segment, Cassagne Abogados is known not only for those specialisms but also its constitutional law and economic regulation expertise; it also has particular strength in complex litigation. Advising across a range of industries, areas of work include public contracts, infrastructure projects and arbitration. A case in point was its recent advisory to a construction consortium comprising Brazil’s Queiroz Galvão and Argentine company Rovella Carranza in their successful participation in a competitive tender for works on behalf of Buenos Aires’ water and drainage company with Agua y Saneamientos Argentinos (AySA). The team is co-led by founding partner Juan Carlos Cassagne (universally recognised as one of the sector’s finest exponents), along with the deeply experienced Máximo Fonrouge, Pablo Perrino, and the very active Ezequiel Cassagne – who led on the above mandate. The December 2021  promotion of Juan Pablo Martini and Juan Carlos Sanguinetti -experts in administrative law and administrative economic law, respectfully- has further deepened the bench, with Martini becoming head of the regulatory practice (particularly in relation to consumption), and Sanguinetti, head of the competition group. The promotions follow on from the earlier November-hire of administrative sanctioning expert Pablo Daniel Sanabria -who has particular expertise in the financial sector- as a partner.

Work highlights

  • Successfully advised a construction consortium comprising Queiroz Galvão and Rovella Carranza on participation in the competitive tender with Buenos Aires’ water and drainage company, Agua y Saneamientos Argentinos (AySA), for the $367m Emisario Berazategui works, to be funded by loans from the Banco Interamericano de Desarrollo (BID).
  • Successfully represented Asociación de Teleradiodifusoras Argentinas (ATA) in both the contentious administrative and federal courts with regard to the possibility of taking IVA into account in relation to the sums paid in employee charges; decisions subsequently ratified by the Supreme Court.
  • Successfully represented Club Universitario de Buenos Aires (CUBA) in the contentious administrative Federal Court against attempts by the Universidad de Buenos Aires to have it vacate its premises in Núñez.

Marval O’Farrell Mairal

The ‘technically excellent’ and ‘strategically mindedMarval O’Farrell Mairal public law practice offers highly valued support to domestic and international clients that compares to ‘the highest international standards’. The dedicated practice group is one of the largest in Argentina and plays a key in role in public-private partnerships (PPP) and big ticket infrastructure projects. The team has helped a number of clients to secure and renew major government tenders and concessions, and its public procurement track record is equally formidable. Clients also seek the out the group's services when involved in complex, sensitive negotiations with regulatory authorities - a specialsim where it has secured multiple successes helping clients to agree government subsidies and large-scale supply agreements. Marval’s public law disputes work impresses too, with the firm advising on a wide range of disputes and litigation, including tariff annulments, Central Bank regulations and concession-contract disputes. Moreover, the team has built on this disputes expertise to become an influential regional player in investment disputes and international arbitration proceedings. Advising on public ethics and the public law aspects of M&A deals are other areas of strength. The practice is co-led by iconic firm founder Héctor Mairal; the ‘excellent’ María Lorena Schiariti, who ‘adds value to the decision-making environment’; and Enrique Veramendi, who ‘manages complex, multi-jurisdictional litigation cases with a perfect organisation’. The practice has further strengthened its talent pool with the August-2021 promotion of Gonzalo Santamaria to partner and the recruitment of four new associates, including the October-hire of rising star senior associate, Sofia Cimmarusti, from Allende & Brea.

Practice head(s):

Héctor Mairal; María Lorena Schiariti; Enrique Veramendi


A versatile team that pays attention to detail and is always focused on the needs of the client.

The public law team at Marval is technically excellent and strategically minded.

‘Lorena Schiariti is a solid professional and excellent ability to connect with clients. She understands issues from a legal and commercial perspective and adds value to the decision-making environment.

‘Marval offers quality services that compare to the highest international standards. The fees are high, but the service makes paying these sums justifiable.’

‘Enrique Valentin Veramendi is an excellent lawyer and a pleasure to work with.’

‘The technical knowledge of legal issues in public law stands out.’

‘The lawyers are business-minded when making recommendations.’

‘The practice has a deep knowledge of the Argentinian market, providing excellent legal advise with perfect English language capabilities. Able to build teams as needed by the client.’

Key clients

Deme Group

CCCC Shanghai Dredging Co

Autopistas del Sol

Mercado Libre


Grupo Concesionario del Oeste

GE Healthcare

MicroStrategy Group


Aerolíneas Argentinas




Pedidos Ya









Camargo Correa

Loma Negra – Ferrosur

Massalin Particulares

Red Hat

Antares Argentina

Work highlights

  • Ongoing strategic and day-to-day advice to Autopistas del Sol, the largest toll road concessionaire in the country, in connection with the implementation and enforcement of a renegotiation agreement reached in 2018, and a potentially imminent new dispute with the Argentine government.
  • Assisting Mercado Libre with challenging an Argentine Central Bank regulation requiring financial entities to record e-wallet deposits with the Central Bank.
  • 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.

Allende & Brea

Capable and prepared’, Allende & Brea‘s public law team advises local and international clients on public procurement, and administrative and environmental matters. The practice also handles the public law aspects of M&A and project finance work, and demonstrates expertise in both advisory and litigious capacities. The group is particularly active in the construction, engineering and infrastructure sectors. Practice head María Morena Del Río, who specialises in public procurement proceedings, public contracts and disputes, has a ‘dedicated and excellent relationship with clients’ and has built a ‘great’ and ‘attentive’ team. Nevertheless, rising star Sofia Cimmarusti left the firm to join Marval O’Farrell Mairal in September 2021 and was replaced by senior associate Lucrecia Re  the following month. The group can also call on the know-how of Diego Botana who has niche public law expertise concerning the constitutional rights of companies in highly regulated sectors.

Practice head(s):

María Morena del Río


‘The attorneys at Allende & Brea are very capable and prepared, applying themselves in a deep and attentive way. Very good compared to other firms.

‘A great team, headed by María Morena Del Río, who is worth noting.

María Morena Del Río has a dedicated and excellent relationship with clients and is always aware of their needs.

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 Servicios

Metlife Seguros de Retiro


Minera del Altiplano

Tempus Labs

Biotronik Argentina

FMC Química

Vertex Pharmaceuticals Europe

Van Hessen Holding


HBO Latin American Group

Sherwin Williams

Ball Corporation




The Kellogg Company

Work highlights

  • Assisted Saab Dynamics in negotiating and drafting a supply agreement with the National Ministry of Defence and the Joint Staff of the Armed Forces for military equipment.
  • Provide general advice to Mastercard Cono Sur on regulatory and administrative matters and public procurement.
  • Advise Thermo Fisher Scientific on administrative contracts signed with governmental bodies including the Ministry of Health and National Administration of Laboratories and Health Institutes, among others.

Baker McKenzie

Baker McKenzie‘s public law practice has ‘deep legal knowledge and expertise’ and is praised for its ‘high level of excellence and efficiency’. The practice covers a broad range of public law matters, including state expropriation, public procurement, novel regulatory trends in the pharmaceutical industry, and online platform/social media segments. The team is particularly noted for its ‘amazing service’ in public law litigation. ‘Dedicated’ figure Luis Dates, who has experience across a range of public and administrative law issues, heads the practice, with key support from the ‘excellentSantiago Maqueda, who was raised to the partnership in 2021 and focuses on regulatory assessment and complex litigation and arbitration.

Practice head(s):

Luis Dates


‘The lawyers and partners are excellent. They have deep legal knowledge and expertise. High level of excellence and efficiency.

‘Great professionals. They manage complex litigation cases and provide an amazing service.

‘Luis Dates and Santiago Maqueda are dedicated professionals . They have high level skills and are excellent communicators, negotiators and problem solvers.

Key clients




Procter & Gamble



La Anónima



China Triumph International Engineering


Bausch & Lomb

Voith Hydro


Boston Scientific

Work highlights

  • Counsel to and representation of Biogen Argentina in several administrative proceedings that arose following the May 2019 execution of an agreement with the National Ministry of Health to ensure national availability of a drug.
  • Advised MSD Argentina, Merck’s local subsidiary, on contractual arrangements for selling products to the Argentine government.
  • Represented Honeywell against the Province of La Rioja after the expropriation of an industrial plant owned by a local subsidiary.


Bomchil has extensive knowledge of public law, regulated industries and state entities, and is particularly recognised for its experience in administrative and court proceedings. The team regularly represents domestic and international clients before provincial and national courts and also handles public bids, administrative appeals and constitutional actions (amparos). Other areas of expertise include advising on public-private partnership (PPP) negotiations, contract terminations, privatisations and renewable energy power purchase agreements. The team is especially prominent in electricity, energy and transportation matters, with the firm an adviser on some of Argentina’s earliest electricity sale and export agreements. Mining, telecommunications and utilities are other key sectors for the practice. A trio of respected public law partners co-lead the practice. María Inés Corrá is an experienced energy, public law and international arbitration lawyer; Francisco Gutiérrez is known for his TMT expertise, and Federico Campolieti has advised on regulatory and administrative law matters for more than 20 years.

Practice head(s):

Francisco Gutierrez; María Inés Corrá; Federico Campolieti

Key clients

Tallo Verde

Desarrollo de Proyectos Mineros


Minera Los Pelambres

Wintershall Energía



Aeropuertos Argentina 2000


Four Seasons Hotel

Caminos del Rio Uruguay

Movistar Arena

Minera del Altiplano




Work highlights

  • 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.
  • Advised Desarrollo de Proyectos Mineros on the development of one of the largest foreign investment and mining projects in Argentina.
  • Representing Minera Los Pelambre in a dispute with Pachón regarding a large mine-waste dump between Argentina and Chile.

Bruchou & Funes de Rioja

Experienced energy and regulatory specialist Ignacio Minorini Lima  leads a Bruchou & Funes de Rioja public law practice that is best known for its regulatory law expertise - particularly in the utilities sector, along with its litigation capabilities. The team advises corporates and government entities on tenders and day-to-day regulatory matters as well as handling complex regulatory disputes before administrative authorities, courts, and arbitral tribunals. The group has advised on high-stakes nationalisation and expropriation disputes, as well as early concession terminations and regulatory disputes. Energy, transportation, oil-and-gas, and public infrastructure are all areas of specialty, with advice on summary administrative proceedings another segment where the practice has a strong reputation. Other key names include senior counsel Carlos De Kemmeter, an administrative and regulatory law specialist, and Juan Antonio Zocca, who was raised to the partnership in 2022.

Practice head(s):

Ignacio Minorini Lima

Key clients

Newsan Group

Société Internationale de Télécommunications Aéronautiques

Envision Energy


América Latina Logística


Banco Macro

Lumen Technologies



Petroquímica Comodoro Rivadavia



The AES Corporation

Facimex Valores

IVI Buenos Aires


Holcim Argentina

AES Argentina





Laboratorio Elea Phoenix

Werthein Group

Energizer Holdings

Camuzzi Gas Pampeana

TMH Argentina





Proficio Investments

Vista Oil & Gas

Canadian Solar

Orígenes AFJP


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 on its claim against the Argentine Government in connection with the nationalization of its pension fund business in 2008.


O'Farrell advises clients in heavily regulated markets and provides support in administrative claims against the Argentine state at both federal and local level. In addition the ‘very knowledgeable’ and ‘dynamic’ practice counsels on public procurement, infrastructure and public works contracts. Dredging and maritime law are particular areas of expertise, with the team also leveraging the wider  firm’s power sector credentials to secure work concerning energy tariff regimes. Additionally, the practice offers regular support on administrative and regulatory matters to public-service sector companies. Public law and litigation specialist Jorge Muratorio and dedicated public law expert María Agustina Fanelli Evans co-lead the team. Up-and-coming associate Ana Belén Micciarelli is another name to watch, receiving praise from clients and being prominent on multiple matters of late.

Practice head(s):

Jorge Muratorio; María Agustina Fanelli Evans


‘The O’Farrell team is very knowledgeable about public law. They are dynamic, effective and share our anti-corruption philosophy.

‘Jorge Muratorio and Ana Belen Micciarelli work well with clients to identify their needs and provide clear advice.

‘Always available and responsive. Good communicators who are commercially aware.

Key clients



Turkish Airlines

Unipar Indupa

Vossloh Cogifer

Pampa Energía

AMX Argentina

Naturgy Ban

Camuzzi Gas Pampeana


Fundación Torcuato Di Tella

Universidad Siglo XXI

Grupo Moscuzza


Dredging International

Siemens Mobility

Ford Argentina

Work highlights

  • Assisted Dycasa with the preparation and submission of public tender documents; as well as on the execution of infrastructure and public works contracts.
  • Defended Medicus in proceedings brought against it regarding the provision of expensive medication.
  • Advised Turkish Airlines on passenger claims that came before the Argentine Civil Aviation Authority and National Migration Office for alleged breach of migration law.

Brons & Salas

Brons & Salas advises on administrative and regulatory law, litigation, arbitration, tendering processes, administrative procedures and contracts with all levels of government. The team is particularly strong in the electricity sector and has also raised its profile in the nascent green hydrogen market. Electricity and litigation expert Sebastián Alvarez, who clients single out for his ‘well-founded judgement’, co-heads the practice with customs and administrative law practitioner Lorena Bartomioli and litigation specialist Joaquin Vallebella, who also co-heads the firm’s arbitration department.

Practice head(s):

Sebastián Alvarez; Lorena Bartomioli; Joaquín Vallebella


‘Sebastian Alvarez is a partner open to listening, analysing and giving opinions based on well-founded judgment and criteria. He is realistic in assessing possible scenarios.

Key clients

Inspection and Control Services


Fortescue Metals Group


Papel Prensa

Provincia de Misiones

Shandong Gold

Grupo Peñaflor

Mercedes Benz Argentina


Work highlights

  • Advised Cammesa on a complaint calling for the cancellation of a fine imposed by the market administrator on a contractor because of delays obtaining a commercial permit for the construction of renewable energy power plants.
  • Supported Dinale on the filing of a legal claim against the Argentine Senate requesting the payment of damages for the wrongful termination of three major construction contracts.
  • Assisted Cammesa with the filing of a suit against the Distribution Company of Neuquén Province, claiming payments owed for electricity provided.

Martínez de Hoz & Rueda

The ‘responsiveMartínez de Hoz & Rueda delivers ‘practical’ public law advice on a range of matters including concessions, licenses, authorisations and representations in public tenders. The team also handles litigious and arbitral matters, supporting clients in administrative and judicial proceedings. The public law team leverages the firm’s formidable energy-sector expertise and is regularly sought out by global and domestic energy and oil-and-gas players to address all their public law requirements. Juan Cruz Azzarri, who has broad administrative, constitutional and energy law expertise, co-leads the practice alongside Jimena Vega Olmos, who specialises in public law, international arbitration, infrastructure, power and project financing.

Practice head(s):

Juan Cruz Azzarri; Jimena Vega Olmos


‘The team delivers practical advice and shows an understanding of a sector and its regulation.’

‘The team is responsive and the partners are accessible.’

Key clients

Parque Eólico Arauco




International Finance Corporation

Retamco Operating Group


Total Austral

Transportadora Gas del Sur


Equinor Argentina

Aon Risk Services

Orazul Energy


Wintershall DEA Argentina


Mitsui & Co

Work highlights

  • Advised Equinor on securing hydrocarbon exploration permits in an offshore bidding process; and provision of ongoing advice on regulatory matters regarding those blocks.
  • Advised Mitsui & Co in securing hydrocarbon exploration permits in an offshore bidding process; and provision of ongoing advice on regulatory matters regarding those blocks.
  • Advising Equinor on legal claims against the federal government regarding environmental impact statements.

Mitrani Caballero & Ruiz Moreno Abogados

Experienced transactional, dispute resolution and public law partner Horacio Ruiz Moreno leads a Mitrani Caballero & Ruiz Moreno Abogados public law team that advises clients on international public tenders and disputes, as well as offering support on project financing for large infrastructure projects. The practice is particularly prominent in the natural resources and life sciences sectors, but also covers other regulated industries including chemicals, transportation and automotive. In addition, the team is regularly sought out to advise on the public law aspects of M&A transactions and assist clients through regulatory disputes and negotiations with governments related to asset expropriations. Rafael González Arzac, who has broad administrative law, public contracting and public services regulation expertise, is another key name, alongside Néstor Buján, who advises international organisations, governments and private clients on contentious and non-contentious public law and dispute resolution matters. Administrative and environmental law specialist María Laura Lede Pizzurno focuses her practice on regulated industries, including natural resources, life sciences and infrastructure. Associate Luciana Casagrande moved to Pérez Alati, Grondona, Benites & Arntsen in January 2022.

Practice head(s):

Horacio Ruiz Moreno

Key clients


Hutchison Port Holdings




Isla Power

Ledesma Renovables

Maersk / Svitzer


Grupo Lamosa



Fratelli Branca

Echo Energy

Central Puerto

Fortuna Silver Mines

Grupo Krenergy


Central Puerto

Holcim Argentina




Lithium Power


ITBA – Instituto Tecnológico de Buenos Aires

Deutsche Rückversincherung

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.
  • Ongoing day-to-day regulatory advice to SWVL related to the mass transportation regulatory legal framework and the processing of the required permits at municipal, provincial and national level.

Pérez Alati, Grondona, Benites & Arntsen

High professionalism’, ‘efficiency’ and ‘speed’ characterise a Pérez Alati, Grondona, Benites & Arntsen public law team that supports clients from a broad array of sectors on public procurement, contract disputes, concessions and licences. The practice is known for its work in highly regulated sectors such as finance and pharmaceuticals, and is also building out a distinctive NGO practice. Team head Nicole Jaureguiberry was promoted to the partnership in early 2022 and has expanded her bench of talent with the hire of associate Luciana Casagrande from Mitrani Caballero & Ruiz Moreno Abogados, who joins senior associate and key support Joaquín Ojeda Goncalves.

Practice head(s):

Nicole Jaureguiberry


‘A practice characterised by its high professionalism, efficiency and speed.

Key clients

Quimica True


Johnson & Johnson Medical


Santander Río

Rewilding Argentina

The Not Company

Globe Metales

United Airlines

Un Techo para mi País

Sumitomo Chemical Argentina

Club Harrods


JP Morgan Chase Trading

Perez Companc Family Group

The Juju

Louis Dreyfus Commodities

Phoenix Global Resources


Molinos Rio de la Plata

1940 SRL

Bodegas Esmeralda

Consorcio de Propietarios Panamericana 1050


Mercado Libre

Naviera Sur Petrolera

Orazul Energy

Janssen Cilag Farmaceutica



Dow Argentina

Lilac Solutions

Papelera del Plata

China Development Bank

Sinopec Argentina Exploration and Production

Sociedad del Vino


Grupo Cargo

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.
  • Supported Molinos Río de la Plata in an appeal against a National Securities Commission fine.

Pozo Gowland Abogados

Pozo Gowland Abogados specialises in the negotiation and execution of public services contracts and also provides support in disputes and arbitration. The team is best known for its expertise in the energy, public services, infrastructure and construction industries. Héctor Pozo Gowland, who specialises in public services and infrastructure matters, co-leads the team with infrastructure, construction and real estate lawyer Esteban de Vedia and Carlos Miná, who focuses on administrative and public services regulatory law.

Practice head(s):

Héctor Pozo Gowland; Esteban de Vedia; Carlos Miná


‘The team provides personalised service and is close to the detail.

‘A firm that demonstrates deep knowledge of administrative law and how government interrelates with business.

‘Hector Pozo Gowland and Carlos Mina are outstanding.

Key clients


Camuzzi Gas del Sur

Camuzzi Gas Pampeana

Caminos del Rio Uruguay






Constructora Sudamericana

Hidroeléctrica Chocón

Integración Energética Argentina




Norte Grande Eléctrico



Work highlights

  • Advised Caminos del Río Uruguay, a national road concessionaire, on a lawsuit requesting the recession of its contract and compensation for damages.
  • Advise Edenor on a lawsuit filed by consumer association Consumidores Financieros related to energy bill discounts.
  • Advised Edenor and Edesur on the transfer of a contract from the national government to the province of Buenos Aires and the city of Buenos Aires, as well as on related pending claims.

Tavarone, Rovelli, Salim & Miani

Tavarone, Rovelli, Salim & Miani provides a full suite of public law services, working with clients on public law contracts and procurement procedures, complex infrastructure projects (including EPC contracts), public bidding and everyday regulatory matters. The team also has experience in complex disputes, advising on matters that have come before the National Supreme Court and ICSID arbitrations. The group advises clients across multiple sectors, but is particularly strong in energy, with experienced energy specialist Nicolás Eliaschev leading the team. The practice’s second line is fronted by senior associate Javier Constanzó, who is active in public law, energy and infrastructure matters; while up-and-coming associate Daiana Perrone is noted for her work in in the renewable energy, PPA and land-rights areas.

Practice head(s):

Nicolas Eliaschev


‘The team has a thorough legal knowledge and the ability to take a practical view of a matter. They provide a valuable contribution for decision making.

‘Very committed and proactive in their analysis and very results-oriented. I highlight the work of Nicolas Eliaschev and Tomas Villaflor.

Key clients

Mercado Libre

Loma Negra


Albanesi Energía


Enel Generación El Chocón



Work highlights

  • Advising Ferrosur on filing administrative claims concerning complex contractual matters related to inter-rail issues.
  • Advising Loma Negra on a highly-complex EPC infrastructure project for the extension of the L’Amali cement plant.
  • Advising Mercado Libre on contracts executed with provinces and municipalities as well as assisting with a public bidding procedure for the award of digital parking metering systems.

Estudio Ymaz Abogados

Estudio Ymaz Abogados is recognised for its deep, specialist expertise in infrastructure, and is particularly adept at handling complex contracts and contract terminations. The team leverages its infrastructure and contractual knowledge to secure high-value advisory and contentious mandates from a variety of domestic and international construction, utilities and energy companies. Esteban Ymaz Videla, who has extensive disputes and arbitration experience, leads the team with key support from associate Beltrán Gorostegui. Esteban Ymaz Cossio passed away in 2021.

Practice head(s):

Esteban Ymaz Videla; Beltrán Gorostegui


‘The firm has broad expertise and puts forward commercially-focused legal solutions. Efficient and punctual service.

‘The firm’s lawyers always show great dedication to their clients. Always engaged and responsive.

‘An outstanding, tightly-integrated team.

Key clients



Dycasa Sociedad Anónima

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 six contractors on all legal matters for a public private partnership (PPP) with the Argentine government.
  • Advised Iecsa, SACDE and Ghella on the execution of a work contract for the construction of a sustainable development project in the Matanza Riachuelo Basin.
  • Advised Constructora San José and Tedagua on the execution of a work contract to expand the drinking water capacity at the Establecimiento Gral. Belgrano plant in Quilmes on the outskirts of Buenos Aires.

Zang, Bergel & Viñes Abogados

Zang, Bergel & Viñes Abogados advises local and international public utilities, public contractors and businesses in highly regulated sectors on various administrative procedures related to securities regulation, competition, foreign exchange matters and environmental issues, among others. The practice is especially strong in dispute resolution and public law litigation, representing clients before courts and in arbitral proceedings. Practice head Ignacio Sanz stands out for his ‘professionalism, high competence and strategic vision’.

Practice head(s):

Ignacio Sanz


‘Ignacio Sanz stands out for his professionalism, high competence and strategic vision. He demonstrates a deep knowledge of public law. His contributions have been extremely valuable.

Key clients

IRSA Propiedades Comerciales


Rafael G Albanesi

Compañía General de Combustibles


Corporación América International

Minera Argentina Gold

Parque de la Costa

Work highlights

  • Advised IRSA on public law issues related to the $1.8bn Costa Urbana project.
  • Advised MAGSA on termination of a $100m project and ensured the issuance of systemic regulation for the case.
  • Representing Parque de la Costa – the largest amusement park in Argentina – in a lawsuit brought against it by the Federal government.