Noted for its deep knowledge of the public regulatory frameworks at the municipal, provincial and federal levels, Beccar Varela assists domestic and international companies with the full range of public law matters across the banking, agribusiness, life sciences, utilities, natural resources, infrastructure, construction, and telecoms sectors. Key areas of expertise include public procurement and bids for major projects, public works and infrastructure concessions, as well as public-private partnerships (PPPs), government contracts and transactions involving highly regulated sectors. The department is under the joint leadership of administrative law specialist Oscar Aguilar Valdez, who advises on public procurement, infrastructure concessions and PPPs, and Juan Antonio Stupenengo, an expert in constitutional, administrative, and regulatory law with extensive experience in public law litigation. Additional support is offered by senior associates Juan Pablo Perrino and Santiago Barbarán; Perrino handles contentious and non-contentious public law matters, while Barbarán stands out for his expertise in public procurement, administrative contracts, PPPs and public services regulations. The team has been further strengthened by the hire of Jimena Vega Olmos from Martínez de Hoz & Rueda; her caseload takes in public law matters as part of a broader electricity and projects practice – effective as of July 2025.

Focused on administrative and public law, boutique firm Cassagne Abogados acts for a range of clients, including major names in the telecoms, natural resources and energy sectors, in mandates concerning constitutional law, public contracts, infrastructure projects and complex litigation. Founder Juan Carlos Cassagne is a well-respected figure in the public law space with over five decades in legal practice. Other noteworthy individuals include Máximo Fonrouge, who is particularly active in the pharmaceutical, construction, energy, natural resources, and banking segments; Pablo Perrino, who specialises in administrative law; and litigator Ezequiel Cassagne. Juan Carlos Sanguinetti rounds out the team with expertise in competition law, and Pablo Daniel Sanabria has deep knowledge of administrative sanctioning. Juan Pablo Martini is also a key member of the team.

Fielding a sizeable administrative practice, Marval O’Farrell Mairal is well positioned to advise local and foreign clients from the energy, mining, natural resources, infrastructure, construction, banking, and TMT sectors on the full spectrum of public law matters. In addition to its strong credentials in PPPs and infrastructure projects, the group is also adept in public law litigation, concession contracts, investment disputes, negotiations with regulatory authorities and transactions involving highly regulated sectors. It also stands out for its strong expertise in navigating land disputes with indigenous groups. Co-head Héctor Mairal, a reference in the market for administrative law issues, has a wealth of experience in public bids, government contracts, and litigation. María Lorena Schiariti, who handles transactional, advisory and contentious work in the infrastructure and energy sectors, and public services, and Enrique Veramendi, whose areas of expertise include government contracts, disputes with government agencies, public procurement and constitutional litigation. The senior team is completed by Gonzalo Santamaria, who is experienced in public, administrative and energy law matters, with a particular focus on power transactions, and Milagros Ibarzábal, who was promoted to partner in August 2025. Key associate support is provided by Sofia Cimmarusti and María Mercedes Mahomed.

Allende & Brea has a ‘highly qualified’ public law team which works with international and domestic players on a range of mandates, from public procurement and regulatory issues to infrastructure and construction projects involving the public and private sectors. The team, which is active across the pharmaceutical, banking, consumer services, aviation, mining, and telecoms sectors, is also proficient in privatisations. The group is led by the ‘excellent’ María Morena del Río, a specialist in procurement, public contracts, litigation, as well as public works and infrastructure projects in the water, sanitation, telecoms, and hydrocarbons sectors. Vanesa Fernández, an ‘attentive’ associate with expertise in public procurement and administrative and judicial proceedings against the state, provinces, and town councils, is the second line of support. Lucrecia Re, who focuses on administrative and regulatory law, also stands out at the associate level. Since the conclusion of research, Morena del Río has left the firm.

Baker McKenzie‘s public law practice is recognised for its work in litigation and regulatory risk management, with particular strength in the healthcare and social media sectors. The team is experienced in representing clients from the pharmaceutical, infrastructure, manufacturing, hydrocarbons, water treatment and retail sectors in administrative and judicial proceedings involving governmental entities, and also stands out for its strong knowledge of public procurement procedures, as well as compliance, regulatory, and environmental issues.  Practice head Luis Dates advises local and foreign companies in public and administrative law matters, including litigation. Santiago Maqueda focuses on regulatory assessment and complex litigation, working especially for clients in the pharmaceutical, energy, and telecoms industries. Bárbara Juárez Grande, who is particularly active in administrative litigation, provides associate-level support.

Described as 'thorough and prompt' by clients, the public law practice at Bomchil is skilled at representing domestic and international companies before federal and provincial courts, including administrative appeals and constitutional legal actions. The practice frequently works with state entities and is also experienced in public procurement, showcasing particular strength in the energy, oil and gas, telecoms, water, sanitation, postal services, transport, and waste management sectors. The ‘excellent’ Francisco Gutiérrez, a specialist in TMT regulatory matters, oversees the department with María Inés Corrá, who shines in litigation before state and federal courts, including the Supreme Court, in cases concerning administrative, regulatory, environmental, and constitutional matters, and Federico Campolieti, whose wide-ranging experience covers administrative proceedings in highly regulated sectors, public tenders and litigation. Marina Wagmaister is a standout senior associate who focuses on regulatory, administrative, and environmental law. Cristian Galansky supports the team on matters regarding energy, natural resources and environmental law.

Singled out for its regulatory expertise, Bruchou & Funes de Rioja excels in public law litigation and mandates involving regulated industries and utilities. The group is adept at handling complex regulatory disputes before administrative authorities, courts, and tribunals and advises private parties and governmental authorities on tenders and projects across the energy, transport, oil and gas, and public infrastructure sectors. Co-head Ignacio Minorini Lima is particularly active in the infrastructure and energy industries, advising on regulatory disputes, public works contracts, and public procurement matters. Fellow co-head Juan Zocca handles public procurement and judicial and administrative proceedings. Also part of the senior bench, Carlos de Kemmeter has vast experience in privatisations, public contracts, and complex litigation. Senior associate Juan Franco Raparo Faure is another name to note for public law litigation, while Manuel Mazza is experienced in energy, regulatory, and public law. Senior assoicate María Laura Rozan left the firm in July 2024.

Mitrani Caballero fields a versatile public law practice which is adept at advising large national and multinational companies on a broad spectrum of administrative and regulatory issues. Its expertise spans the public law dimensions of M&A and project finance, international tenders, and related disputes. Active across sectors such as energy, mining, food, pharmaceuticals, chemicals, construction, transport, and automotive, the group attracts instructions from major investor-owned utilities, oil and gas producers, project developers, and energy coalitions. The practice is led by María Laura Lede Pizzurno, a mining, administrative, and environmental law specialist with wide-ranging expertise in regulatory and administrative proceedings, M&A transactions, and PPPs. Other key individuals include Horacio Ruiz Moreno, who focuses on administrative law and mandates concerning public services regulation, and Rafael González Arzac, who assists with public contracting. Gonzalo Castagnini stands out at the associate level.

O'Farrell's public law and economic regulation team advises clients operating in highly regulated markets, guiding them through administrative claims in both federal and local courts. The practice supports clients with public procurement for infrastructure and public works projects, the execution of energy distribution contracts, day-to-day administrative matters, bidding processes, and public law litigation, regularly acting for clients across the energy, pharmaceutical, aviation, automotive, infrastructure, chemicals, and telecoms sectors. Leading the team is Jorge Muratorio, a highly regarded public law specialist with a wealth of experience in public procurement, dispute resolution, public works and PPPs. Ana Belén Micciarelli, who made partner in June 2024, assists with public contracts and litigation against government entities. María Fortuna, a specialist in public utilities matters, public contracts, and litigation, stands out at the associate level. María Agustina Fanelli Evans left the firm in January 2024.

Standing out for its experience in the energy, public services, infrastructure and construction spaces, the public law team at Pozo Gowland Abogados is frequently called upon by clients seeking advice on contracts for the provision of public services linked to energy, waste collection, sanitation and transport. The group also assists with dispute resolution, including representation before regulatory and control authorities. Héctor Pozo Gowland, one of the co-heads and founding partners, specialises in administrative law and the regulation of public services and has deep experience working across the infrastructure and energy sectors. He heads up the group with Esteban de Vedia, a seasoned practitioner in infrastructure, construction and real estate, and founder Carlos Miná, who is particularly active in the energy, construction and public utilities sectors. Other key individuals include Santiago Durigón, a key contact for transport and construction companies, and Francisco Pozo Gowland, whose areas of expertise cover administrative law, public services, infrastructure, and international arbitration.

Brons & Salas‘ public law team handles a broad range of regulatory, advisory, and dispute resolution matters in public and administrative law. The practice has a strong focus on the power sector, proven by its involvement in key privatisations, regulatory matters, as well as contractual and contentious work in this space. In addition, the team receives routine instructions from clients operating in the oil and gas, mining, food and beverage, automotive and paper production sectors. Sebastián Alvarez, practice co-head, is an administrative law specialist with extensive experience representing clients in the electricity sector. Joaquín Vallebella co-leads the department, bringing over a decade of experience in dispute resolution. At the associate level, Matias Foiguel Borci is noted for his involvement in administrative and regulatory matters.

Estudio Ymaz Abogados’ public law team is skilled in handling complex regulatory matters, government contracts, and administrative law issues. The practice advises both domestic companies and major international corporations, with particular strength in the construction, infrastructure, tourism, hospitality, and transport sectors. Co-head Esteban Ymaz Videla, a founding partner with more than 20 years’ experience, is recognised for his work in administrative, corporate, and constitutional law, as well as foreign investment and arbitration. He leads the practice alongside Beltrán Gorostegui, who brings extensive expertise in administrative law and public contracts for both national and international clients.

Hope, Duggan & Silva's administrative and regulatory law team has extensive experience in the power, gas, natural resources, ports, and railway sectors. The practice advises on public investment strategies and handles litigation involving expropriations, tariffs, and bidding processes. The team is led by Hugo Vivot.

Martínez de Hoz & Rueda advises local and international companies on a wide range of public and administrative law matters, with a particular focus on the energy sector and dispute resolution. The team handles interdisciplinary cases involving contracts and public utilities for some of Latin America’s largest energy companies and is experienced in concessions, licences, authorisations from federal and provincial authorities, foreign investment matters, and administrative and judicial proceedings. Following the July 2025 departure of former co-head Jimena Vega Olmos, Juan Cruz Azzarri, a specialist in administrative and constitutional law, antitrust, and public utilities and contracts, now oversees the practice.

Covering both advisory and litigation matters, Nicholson y Cano Abogados' public law practice often represents clients against government authorities at the federal, provincial, and municipal levels and before the Supreme Court. Noted for its strong presence in the infrastructure and natural resources sectors, the practice is also experienced in bidding procedures, infrastructure projects (including PPPs), government contracts and concessions. Lucas Piaggio, an expert in public, administrative, and constitutional procedural law, regularly assists banks, utility companies, and clients from a host of regulated industries. Piaggio oversees the practice with Eduardo Koch, who is especially active in matters concerning infrastructure, telecoms, construction, oil and gas, and energy, and Martín Rodriguez, recommended for administrative, constitutional, and environmental law mandates.

Pérez Alati, Grondona, Benites & Arntsen advises clients across both regulated and non-regulated industries, with experience spanning agrochemicals, banking and finance, oil and gas, electricity, aviation, insurance, water and sanitation, telecoms, mining, and pharmaceuticals. The team acts for both local and international companies in public procurement proceedings, and provides support with contracts, compliance, and securing concessions, licences, and authorisations before federal and local authorities. Practice head Nicole Jaureguiberry is adept in public procurement, infrastructure projects, and administrative proceedings. She is supported by Luciana Casagrande, who specialises in administrative, regulatory, and utilities law.

Richards, Cardinal, Tützer, Zabala & Zaefferer is especially recognised for its strength in public procurement, infrastructure projects, bids and concessions, public services, finance, and foreign investment. The team also handles contentious matters, frequently representing clients before administrative bodies and the courts. Damián Navarro leads the practice and is supported by senior associate María del Pilar Olaso.

Salaverri, Burgio & Wetzler Malbran's team is capable of assisting with administrative contracts, public works, tenders and matters concerning public utilities. Its contentious credentials are also noteworthy; the group represents clients in administrative proceedings and claims against the government before local and federal courts. Practice head Santiago García Mira has extensive experience advising public entities and private companies on a wide range of public law matters, including litigation. Santiago Freyre, who was named partner in January 2024, is particularly active in the energy and oil and gas sectors.

Tanoira Cassagne Abogados advises national and international companies on public law and economic regulation, with particular strength in matters involving state intervention and administrative proceedings at the national, provincial, and municipal levels. The team is also regularly engaged in public bids and disputes tied to environmental and urban planning issues, and acts for clients from a broad range of industries, including telecoms, energy, oil and gas, construction, consumer goods, healthcare, and agribusiness. Bernardo Cassagne, a specialist in energy, mining, environmental and public law, leads the group alongside Ignacio Gonzalez Zambón, who specialises in public tenders and public infrastructure development, and recently promoted partner Magdalena Carbó, who has a deep knowledge of the consumer goods sector and its regulatory landscape.

Major players from the mining, natural resources and energy sectors regularly turn to Tavarone, Rovelli, Salim & Miani for its strong expertise in public contracts and procurement, large-scale infrastructure projects, and regulatory matters. It also represents clients from the transport, water, sanitation, oil and gas, fintech and retail segments in both administrative and judicial proceedings. The practice is led by the ‘highly technical’ Nicolás Eliaschev, a public law specialist with nearly two decades of experience in the electricity, energy, and infrastructure sectors, and Javier Constanzó, who handles regulatory issues, construction contracts, and matters concerning public works. Senior associate Daiana Perrone is singled out for her experience in renewable energy projects and bidding processes.

Drawing on over two decades of experience in the public law space, ZBV Abogados acts for domestic and international clients across the real estate, public transport, TMT, energy, water, sanitation, banking, agribusiness, and retail sectors. The practice has extensive experience in public procurement, while also representing clients in administrative proceedings and high-stakes public law litigation. The ‘dedicated’ Ignacio Sanz leads the practice, specialising in regulatory and public law, government affairs, compliance, and internal investigations. Inés Pérez Mendoza and Clara Minieri are the names to note at the associate level.