Praised for it ‘great knowledge of the market and its stakeholders', 'excellent handling of complex and stressful situations' and 'ability to go beyond transactional legal advice', Cuatrecasas' corporate practice has very much come of age since the office's founding in 2019. The practice has built out is client roster from its original private equity and energy cornerstones and today handles transactions and mandates across the full breadth of the market, including infrastructure, healthcare and agribusiness, among others. Key strengths include joint ventures, distressed M&A deals, corporate restructuring, and asset and business transfers. Managing partner Oscar Trelles, who is experienced in leading complex international M&A transactions, co-directs the practice in conjunction with Diego Carrión, who is skilled in private equity and complex corporate advisory work; clients highlight the team's 'closeness', 'commitment' and 'proactivity'. Noted for her expertise in capital markets, financial regulation, financings and corporate transactional matters, generation partner Kiomi Osorio is integral to the practice. At associate level, seniors Guido Maeda (M&A, corporate and commercial law) and Mariano Peró (corporate transactional matters) are the names to note. Associate Augusto Hostia left the firm for an in-house position in May 2025.
Legal 500 Editorial commentary
- Profile
Mentions
Profile
Position
Partner
Career
Diego Carrión specialises in corporate law, M&A transactions and private equity. He is also an expert in securities markets and financing arrangements. He has participated in some of the most sophisticated and important national and international transactions in recent years.
Before joining Cuatrecasas, he worked at a leading law firm in Lima. He also worked as an international associate at Sidley Austin LLP in New York. At both firms, he participated in highly sophisticated local transactions and transactions involving many jurisdictions.
He is a member of the Lima Bar Association.
He lectures on the courses “Commercial Law Institutions” and “Corporate and Finance Law” at Pontificia Universidad Católica del Perú.
He also contributes to publications and writes legal articles for different specialist journals and other written media.
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Testimonials
Collated independently by Legal 500 research team.
- ‘Great knowledge of the market and its stakeholders, along with excellent handling of complex and stressful situations.’ ‘A proactive team, always willing and available, in addition to extensive experience in M&A processes and the energy market.’ ‘The team adapts very well to the client's needs, for example, to the client's billing system. They are very good at their job and have a multidisciplinary team capable of advising in different legal areas.’ ‘What makes this practice unique is their ability to go beyond transactional legal advice. I feel they have really taken the time to understand my business, my strategic objectives with this acquisition, and the potential challenges we could face. Their approach is proactive, anticipating problems rather than simply reacting to them. I particularly value their ability to integrate as a true partner in this process, working side by side with my internal team.' 'The support of Oscar Trelles and Mariano Peró has been fundamental. Their closeness and commitment to the project have ensured that the process is running very smoothly, managing all the necessary information with the other party, which has not been easy given the specific conditions of the process.'
Key clients
- Yinson Renewables Stracon Merieux Nutrisciences Corporation Minsur (Grupo Breca) Grupo Chema Ashmore Renewables Grupo Wiese W Capital Ignis Energy Sindicato Energético Viridi RE (Schweiz) Grupo Carvajal Ashmore Group Faro Capital Grupo Verme Merama RRLL (Timberazo) Hudbay Perú
Work highlights
Advised Ashmore Renewables on the acquisition of 100% of the shares of Ergon Perú and Tre Perú from their shareholders Tozzi Green and Gardini 2002, the acquisition financing, the noteholders’ consent solicitation and all related matters.