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.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'The team is multidisciplined and works together well.'

  • 'Juan A. Stupenengo is distinguished for his excellence in public law. He possesses a distinct technical capability and experience and is very straightforward but friendly.'

  • 'Oscar Aguilar Valdez is a known specialist; he brings a set vision with strength and experience.'

  • 'They are a team that can be fully trusted, both for their legal capability and their integrity.'

  • 'Oscar Aguilar Valdez has deep knowledge of the law, and his strategic approach makes a real difference. He conveys confidence and demonstrates an authentic commitment to each case.'

  • 'The public law team at Beccar Varela is top-notch. Solid in technical matters but also practical and committed to the client's needs, quick when the case requires it. It is a pleasure to work with them.'

Key clients

  • Mercado Libre
  • GSK Biopharma Argentina
  • China Gezhouba Group Company
  • Telxius Telecom
  • Empresa Jujeña de Energía
  • Transindustrias Electrónicas
  • Coca-Cola FEMSA de Buenos Aires
  • Cámara Argentina de Especialidades Medicinales
  • Banco de Formosa
  • DiDi Mobility Information Technology
  • Companhia Siderurgica Nacional
  • Integral Acquisition Corporation 1

Lawyers

Hall of Fame

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Jimena Vega Olmos

Leading associates

Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.

Santiago Barbarán

Practice head

Oscar Aguilar Valdez; Juan A. Stupenengo

Other key lawyers

Juan Pablo Perrino; Santiago Barbarán; Jimena Vega Olmos