
Guyer & Regules boasts expertise in energy, infrastructure and project finance in Uruguay. The firm advises a broad spectrum of clients, from renewables to major players in oil and gas, with notable expertise in power purchase agreements, PPPs, concessions and financing. The department is co-headed by Juan Manuel Mercant, who specialises in oil, gas, hydrogen, renewables and data centre projects. Federico Susena, also co-head, brings deep sector knowledge in oil, gas, renewables, hydrogen and blockchain infrastructure. Susena has led landmark projects in offshore exploration and LNG. Marcos Payssé advises on major infrastructure and financing deals. Federico Piano brings end-to-end expertise in project finance. Associate Javier Napoleone supports on major PPP, CREMAF and energy projects. Tania Cavallo, a senior associate, has strong transactional experience in complex PPPs and renewable energy financings.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®
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.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Federico Piano
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Marcos Payssé
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Tania Cavallo
Javier Napoleone
Practice head
Juan Manuel Mercant; Federico Susena
Other key lawyers
Marcos Payssé; Federico Piano; Javier Napoleone; Tania Cavallo
