The 25-strong practice at Claro & Cia. has an enviable market reputation for large-value transactions in the energy, infrastructure, financial services, retail and mining sectors. Examples include significant acquisitions, divestitures, and mergers, as well as joint ventures and restructurings. The team also covers private equity-related buyouts, exits, growth investments, regulatory compliance, and shareholder arrangements. José María Eyzaguirre B advises on cross-border transactions, public M&A, and corporate governance; Rodrigo Ochagavía specialises in energy, pension and insurance sector M&A; and José Luis Ambrosy and Matías de Marchena both advise on energy M&A. The department further includes Ariel Mihovilovic, who focuses on energy sector asset deals; and Juan José León, an adviser on fund and asset manager-related M&A. Other key names are José María Eyzaguirre F and Joaquín Rodriguez, along with counsel Philippa Cooper and associate María Jesús Muñoz. January 2026 saw Vicente Allende raised to the partnership, while former partner Felipe Larraín  and left during 2025.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge

Testimonials

Collated independently by Legal 500 research team.

  • Juan Leon has extensive experience and consults well with the rest of his firm. He provides us with exceptional service and is always available to us. In addition to being readily accessible, he is very proactive with his suggestions and comes up with excellent solutions.
  • Claro & Cia are our go-to lawyers and advise us on a wide range of matters. However, their most important area of expertise is M&A. The team that handles our case is led by José Maria Eyzaguirre, but we primarily work with Juan Leon on a daily basis. Depending on the type of transaction, Juan Leon brings in his partners. One of the most frequent is Matías de Marchena. We have a fantastic opinion of the Claro team. We've worked with many teams from other firms in the past, and we far prefer Claro. Frankly, we believe they have the best team. They are extraordinary negotiators, but what's most important to us is that they take care to protect us in case of unforeseen future events. I feel that the Claro team, and especially Juan Leon, "thinks of everything," which makes negotiating with the other party much easier for me. We believe Claro is the best law firm in Chile.

Key clients

  • Latam Airlines Group
  • Itau Unibanco
  • Banco Itaú
  • Glenfarne Group
  • Compañía Electro Metalúrgica (Elecmetal)
  • Cueto Family (Costa Verde Portfolio)
  • Southern Cross Group
  • Altis (Müller Family)
  • Toesca Asset Management
  • Parque Arauco
  • Sociedad Quimica y Minera de Chile

Work highlights

Assisted LATAM Airlines Group with the structuring and implementation of a series of secondary share offerings (carried out by its shareholders), involving the sale of American Depositary Shares.
Advised Sociedad Química y Minera de Chile on reaching an agreement with state-owned mining company Codelco in relation to co-developing lithium production in Chile.
Advised Glenfarne Group on the negotiation and closing of the acquisition of a portfolio of four energy projects in Chile from Metlen Energy & Metals.

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.

José María Eyzaguirre B
José María Eyzaguirre B
Next Generation Partners

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

José María Eyzaguirre F
José María Eyzaguirre F
Leading associates HIgh end

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

Practice head

José María Eyzaguirre B