Public and private sector organisations turn to Beccar Varela for industry-specific expertise on public law matters affecting the transportation, banking, agribusiness, life sciences, utilities, natural resources, construction, e-commerce and telecommunications sectors. The practice provides guidance on public regulatory frameworks at the federal, provincial and municipal levels, and assists clients with adaptation to evolving regulations. Public procurement, tenders, bid processes, public-private partnerships (PPPs), zoning and regulatory work are also handled, with contentious public law litigation matters (including administrative and judicial review procedures, injunctions, class actions and appellate reviews) another area of specialist expertise. The practice is co-led by vastly experienced public law practitioner Oscar Valdez, who handles complex public procurement, infrastructure concessions and PPP work; and Juan Antonio Stupenengo, who focuses on constitutional, administrative and regulatory law. A strong roster of associate talent includes seniors Juan Pablo Perrino (administrative and regulatory law) and Santiago Barbarán (constitutional, administrative, and regulatory law).

Cassagne Abogados is a public and administrative law boutique with specialist expertise in the areas of constitutional law, economic regulation and complex litigation. Clients also seek the firm out for support on public contracts, infrastructure projects and arbitration. A deep bench of senior talent includes firm founder Juan Carlos Cassagne, one to the country’s most respected public law professionals; Máximo Fonrouge, an administrative law veteran with more than four decades' experience; well-regarded administrative law specialist Pablo Perrino; and established litigator Ezequiel Cassagne. Other key names at partner level include Juan Pablo Martini (who leads on regulatory matters); Juan Carlos Sanguinetti (the primary contact for competition law), and Pablo Daniel Sanabria (administrative sanctioning).

International and domestic clients turn to the well-resourced and experienced Marval O’Farrell Mairal team for its deep administrative and public law expertise. The firm is a key adviser in complex public-private partnership (PPP) deals and a go-to choice for clients seeking advice on large scale infrastructure projects. The team is also well-versed in public procurement processes and has a strong track record of helping clients to win and renew government tenders and concessions. Public law disputes is another busy area, with the firm frequently called on to assist with contentious tariff annulments, Central Bank-regulation, concession-contract disputes, investment disputes and international arbitration proceedings involving the state. Regulatory negotiations and subsidies are other areas of expertise. The team is co-led by the iconic administrative law expert Héctor Mairal; highly-respected administrative law specialist María Lorena Schiariti; and regulatory and administrative law practitioner Enrique Veramendi, who leads on constitutional and administrative litigation. Further partner-level back-up is provided by experienced dispute resolution partner Gonzalo Santamaria, while senior associates Milagros Ibarzábal (supply agreements); Sofia Cimmarusti (maritime and infrastructure); and Maria Mercedes Mahomed (concessions, arbitration and litigation) lead the second line.

Allende & Brea handles complex administrative law matters and draws on its knowledge of Argentina’s distinctive regulatory environment to support clients on public procurement and environmental law, as well as public finance mandates, litigation and M&A-related public law work. The practice is led by experienced public works and infrastructure specialist María Morena Del Río, who is well known for her expertise across public procurement, public contract claims, dispute procedures and judicial reviews. She receives capable support from established corporate partner Diego Botana, who is an authority in the niche area of company constitutional rights in highly regulated sectors. At senior associate level administrative and regulatory law-focused Vanesa Fernandez and Lucrecia Re, who handles public contracts, procurement, administrative law and judicial procedures, are the main contacts.

Baker McKenzie advises clients on contentious public law matters and regulatory risk mitigation strategies, with the team particularly noted for its work in the areas of public procurement and state expropriation. Other niche lines of expertise include pharmaceuticals, where the group represents clients in administrative and judicial procedures related to orphan drugs and clinical research regulation; and social network liability and regulation issues. The team also assists with permitting, environmental and compliance matters. Practice lead Luis Dates is a respected public and administrative law expert and works closely with dispute resolution partner Santiago Maqueda, who covers regulatory assessments, complex litigation and arbitration. Following the September 2024 departure of Agostina Spizzo (commercial and investment arbitrations), Juan José Catalán (transactional matters) is the main associate contact.

Bomchil represents clienta before federal and provincial courts in all types of administrative law queries, as well as assisting with tariff regimes, public-private partnerships (PPPs), and concession bids and negotiations. The team is especially well known for its outstanding arbitration practice and is a go-to name for settling international arbitrations with the Argentine state. Privatisation matters, constitutional actions (amparos) and renewable energy power purchase agreements are other areas of expertise for a practice that works with companies from a range of sectors, including electricity, energy, transportation, mining, telecoms and utilities. The team is jointly led by the vastly experienced public law, energy and regulation expert María Inés Corrá; outstanding TMT practitioner Francisco Gutiérrez, who also handles international arbitration and economic regulation work; and Federico Campolieti, who covers public tenders, licensing and public-law related litigation. Further partner-level support is provided energy and environmental lawyer Cristian Galansky, with highly-rated senior associate Marina Wagmaister (economic regulation, international arbitration and administrative law) leading the second line.

Bruchou & Funes de Rioja is well known for its expertise in highly regulated industries, where it supports private companies and government authorities with advice on concessions, expropriations, public procurement, tenders and litigation before administrative authorities, courts and arbitral tribunals. The firm is particularly active in the oil-and-gas and utilities sectors, and brings in support from its banking and dispute resolution teams to provide clients with comprehensive, multidisciplinary coverage of public law matters. The team is led by the highly-respected dispute resolution and public law expert Ignacio Minorini Lima, who is recognised for his impressive track record in complex, high-profile regulatory disputes. Public procurement and administrative law expert Juan Zocca provides further partner-level support, with the practice also able to call on vastly experienced regulatory law of counsel Carlos de Kemmeter. Senior associate Maria Laura Rozan is focused on regulatory law and also works across various arbitration proceedings.

Large national companies and multinational groups operating in highly-regulated industries turn to Mitrani Caballero & Ruiz Moreno Abogados for support on complex administrative and regulatory matters, including public-law related M&A transactions, infrastructure project financings, international public tenders and disputes. The team is particularly well known for its expertise in the development and financing of infrastructure projects, and is also sought out to assist with public tenders and negotiations with government following the nationalisation of business assets. Public and administrative law litigation is another strong area. María Laura Lede Pizzurno, an expert in infrastructure and highly-regulated industries, has taken on the leadership of the practice, although former practice head Horacio Ruiz Moreno remains active and involved in administrative law and contentious work. Veteran partner Rafael González Arzac, who has broad administrative law, public contracting and public services regulation expertise, provides further senior-level experience, with administrative and regulatory law-focused Gonzalo Castagnini the main contact at associate level.

O'Farrell has a long track record in the highly-regulated telecoms and electricity sectors, and is active in infrastructure and public works projects. Clients also turn to the firm for advice on public procurement processes, tariff regimes, maritime and dredging work, and contracting procedures. Contentious matters are covered too, with the firm handling administrative claims and judicial proceedings at the federal and local levels. The practice is led by experienced disputes resolution figure Jorge Muratorio, who is frequently sought out to for advice on litigation in heavily regulated markets and public services. Public law and regulation partner Agustina Fanelli Evans; and Ana Belén Micciarelli, who was made partner in the summer of 2024 and assists clients in heavily regulated industries, provide further senior-level support.

Pozo Gowland Abogados is well-known for its track record in the electricity, oil-and-gas, public services, infrastructure and construction sectors, and advises clients on public contract negotiations, government and regulatory agency disputes and arbitrations, concessions, tariffs, and permits and licensing. An experienced practice leadership team is comprised of the immensely experienced administrative and public law practitioner Héctor Pozo Gowland; Esteban de Vedia, an authoritative figure in the areas of infrastructure, construction and real estate law; and Carlos Miná, a specialist in administrative law and the regulation of public services. The team’s partner slate also includes Santiago Durigón, who works on public and private tenders and assists with the drafting and negotiation of administrative contracts; and Francisco Pozo Gowland, who specialises in administrative law and the regulation of public services, works and infrastructure.

Brons & Salas handles a wide range of administrative and regulatory law matters, including litigation, arbitration, tendering processes, administrative procedures and contracts with all levels of government. Construction, electricity and energy are key areas of focus for the team. The key senior names include electricity and litigation specialist Sebastián Alvarez and litigation and arbitration specialist Joaquin Vallebella. Administrative and customs lawyer Lorena Bartomioli departed to work as legal advisor to the President of the National Fiscal Court in June 2023.

Hope, Duggan & Silva is known for its work on complex regulatory law matters in the the power, gas, natural resources, ports and railway industries, and is well-versed in bilateral investment strategies and litigation related to expropriations, tariffs and the suspension of bidding processes. The team is directed by Hugo Vivot, an established public law practitioner with specialist experience in the power sector.

Oil-and-gas and energy powerhouse Martínez de Hoz & Rueda draws on its deep experience in these highly-regulated industries to provide clients with a comprehensive public law offering that covers concessions, licenses, authorisations and representation in public tenders. The team is also accomplished in contentious matters, representing clients in various administrative, judicial and arbitral proceedings. The practice is co-led by respected public law and litigation practitioner Juan Cruz Azzarri; and Jimena Vega Olmos, who is sought out for counsel on regulatory frameworks, along with judicial and administrative challenges to administrative decisions and rulings, participation in public bids, and public contract negotiations.

Best-known for its work on highly sensitive contentious public law matters, Nicholson y Cano Abogados handles litigation before government entities at the federal, provincial and municipal levels. The team also covers mattes related to government contracts, procurement, public bidding processes, public-private-partnerships and concessions, with infrastructure and natural resources the key areas of focus. The highly experienced Lucas Piaggio, an administrative law expert, co-leads the practice alongside public law and infrastructure veteran Eduardo Koch; and Martín Rodriguez, who covers administrative, constitutional and environmental law, in relation to public services, economic regulation and bidding processes.

Pérez Alati, Grondona, Benites & Arntsen provides legal services to a wide range of companies and industries operating in regulated and non-regulated areas, and is sought out for its expertise in regulatory compliance, public procurement, concessions and licenses, as well as challenging decisions on public contracts. The heavily-regulated financial services sector is a key area of focus, as are the pharmaceutical and biotech areas, with the firm also known for its work with NGOs and national park authorities. Practice head Nicole Jaureguiberry handles a wide range public law, regulatory, and administrative matters, with environmental law a particularly strong part of her practice. Public law-focused associate Luciana Casagrande is also a key contact.

Richards, Cardinal, Tützer, Zabala & Zaefferer has extensive administrative law experience, covering matters related to governmental regulations on commercial and industrial activities, as well as contracts and procurement with federal, provincial and municipal authorities. The team is particularly well-known known for its work in the areas of public procurement, public infrastructure works, bids and concessions for infrastructure, public services, public finance and foreign investment. Support on contentious matters is also provided, with the team regularly called on to represent clients before administrative agencies and courts of law. Practice head Damián Navarro is an administrative law specialist, with experience in public, regulatory and environmental law; he focuses on government procurement, regulated activities, and public law litigation. Senior associate María Del Pilar Olaso is the other key contact and advises clients on administrative law, constitutional law, economic regulation and environmental matters.

Salaverri, Burgio & Wetzler Malbran advises clients on administrative contracts, public utilities, public works and tenders, and is also sought out for support on administrative procedures and in claims against the government. The team also provides support on transactional matters involving assets in regulated markets, as well as assisting in complex litigation matters with a public law angle. The practice is led by the experienced Santiago García Mira, who covers administrative law, economic regulation and energy law, along with litigation. Santiago Freyre, who was raised to the partnership in January 2024, is another key name and advises on contentious matters in the transportation and oil-and-gas sectors, among others.

Tanoira Cassagne Abogados supports clients in public bids, administrative proceedings and litigation, including ‘amparo’ class actions and disputes related to environmental and town planning. The firm also offers advice on the industry-specific regulatory legal frameworks governing the telecoms, energy, oil-and-gas, construction and digital sectors, among others. The practice is co-led by Bernardo Cassagne, who handles bidding processes and privatisation mandates; recently promoted partner Ignacio Gonzalez Zambón, who covers public tenders and disputes; and senior associate Magdalena Carbó, who has experience in the areas of price controls and disputes involving state entities.

Tavarone, Rovelli, Salim & Miani is regularly sought out by companies in the highly regulated railway, road transport, telecoms and energy sectors on a wide range of public law matters, including procurement, complex infrastructure contracts, public bids and everyday regulatory and compliance work. The team also operates an active contentious matters practice, and represents clients in administrative, arbitral and judicial proceedings at all levels. The team is led by the highly-rated Nicolás Eliaschev, who is particularly active in the energy and electricity sectors. Javier Constanzó (who was raised to the partnership n December 2023) undertakes public law, energy and infrastructure matters; while senior Daiana Perrone (an expert in renewable energy, power-purchase-agreements, infrastructure projects, and bidding processes), is the main contact at associate level.

The public law department at Estudio Ymaz Abogados is best known for its infrastructure expertise and is sought out for support on complex contractual mat (including contract terminations) by clients active in the utility, energy and road construction sectors. The team also has an accomplished disputes practice, which handles sensitive public law-related litigation and claims work. The experienced and respected Esteban Ymaz Videla, who is recognised for his exceptional dispute resolution and arbitration practice, co-leads the team alongside Beltrán Gorostegui, a senior associate focused on administrative law and the protection of foreign investment.

Zang, Bergel & Viñes Abogados handles a wide range of public procurement work and also acts on public-private-partnerships, joint ventures and concessions. The practice is particularly well-known for the strength of its litigation and arbitration expertise, where it represents clients in administrative and high-stakes court proceedings, dealing with complex environmental and regulatory issues. Experienced compliance and public law partner Ignacio Sanz leads the team, with corporate and litigation-focused senior associate Clara Minieri providing primary support.