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Mayora & Mayora, S.C.

Work +502 222 368 68
Fax +502 236 625 40

Rafael Briz

Work +502-2223-6868
Mayora & Mayora, S.C.

Work Department

Administrative Law, Corporate Law, Government Procurement, Labor Law, Telecommunications and Energy Law, Arbitration, Litigation




Rafael has been with the Firm since the beginning and is known for his unmatched knowledge of telecommunications and energy law. Over his career, in addition to energy and telecommunications ones, he has handled many corporate, labor and government contracts cases.  

Rafael is consistently recognized for his legal skills, having been selected by Chambers & Partners for the last ten years for his experience in Energy and Natural Resources, Corporate Mergers and Acquisitions, and Corporate/Commercial law. For numerous years, he has been the number one ranked attorney in Guatemala by LACCA for Arbitration. IFLR 1000 and Legal 500 place him as a Leading Lawyer in Guatemala in the practice areas of Energy and Natural Resources, Mergers and Acquisitions and Capital Markets. Who´s Who Legal has ranked him for numerous years as an expert in the area of Energy Law.


Spanish, English


Guatemalan Bar Association, International Bar Association, Spanish Chamber of Commerce in Guatemala (President)


Rafael received his law degree, Master in Business (cum laude) and Roman Law Studies and Praxeology Degree from Universidad Francisco Marroquín, the highest ranked university in the country.


Banking and finance

Within: Banking and finance

Lex Mundi’s Guatemalan member firm, Mayora & Mayora, S.C. counts some of the biggest names in the financial sector among its clients, including Banco Industrial, Citibank, Banco Azteca and the International Finance Corporation (IFC). Recent highlights for the team include organising stock option plans for employees of multinational pharmaceutical company Sanofi-Aventis and consulting, technology and outsourcing company Capgemini, and assisting Energuate, one of the largest energy distributors in Guatemala, with multiple bids to purchase energy, including issuing $330m-worth of bonds through an offshore trust. The team is jointly led by Claudia Pereira, who specialises in loan agreements, secured transactions and project financing, and Sandra Castillo, who is known for her expertise in security trusts and local securities for foreign loans. With support from senior associate Maria Fernanda Pellecer, Pereira also advised Sucden Americas on the grant of multiple promissory notes worth $15m to an alcohol plant in Guatemala. Founding partner Eduardo A Mayora, who continues to act as legal counsel to the Guatemala Stock Exchange, and Rafael Briz, who specialises in energy-related matters, are also key figures.

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Dispute resolution

Within: Dispute resolution

Mayora & Mayora, S.C. specialises in representing corporate clients in commercial disputes, administrative actions – where disputes in the energy sector are a particular focus – employment cases and tax litigation. The firm’s arbitration practice is also growing; it is involved in an ongoing arbitration case between two major distribution companies. The team is led by Paola Galich, who was formerly in-house counsel for the Coca-Cola Company; senior partner Rafael Briz is also a key figure in the practice. Highlights included assisting an energy company with collecting accrued debts of $1m from municipalities in Guatemala for the provision of electricity services; representing two major Guatemalan companies in a criminal complaint against two of their former executives; and acting for a telecoms company in litigation relating to a breach of contract obligations. Senior associates Luis Fernando Juárez, José Ramos and Byron Deulofeu focus on labour and energy, consumer and IP matters, respectively.

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Energy and natural resources

Within: Leading lawyers

Rafael Briz - Mayora & Mayora, S.C.

Within: Energy and natural resources

Mayora & Mayora, S.C.’s ‘excellent’ energy practice provides a ‘personalised service that is prompt and efficient’; the team combines ‘good response times’ with an ‘excellent knowledge of the electricity industry’ and handles a wide variety of energy-related matters and associated administrative regulatory issues. Expertise ranges from energy purchasing and the development of energy plants infrastructure, to bidding processes, energy regulation, and contentious administrative actions and litigation, as well as transactional advice and project finance for energy companies. The practice is particularly known for advising Guatemala’s largest electricity distribution company, IC Power subsidiary ENERGUATE, which it recently represented in multiple energy purchase bids, as well as in arbitration concerning a lost investment in infrastructure for energy transportation and distribution in the 1970s. Other work includes assisting Obrascón Huarte Lain (OHL) and Grupo Cobra with the construction of two hydroelectric generation plants; the practice also counts Grupo Ortiz and Grupo Gran Solar among its clients. The ‘competent’ team has ‘precise knowledge in a diversity of legal matters’ concerning the energy industry: recommended by clients and peers alike, key contact Rafael Briz is regarded as ‘very professional, capable and fully dedicated to reaching the set objectives with clear strategies and quality advice’; and senior associate Rafael Pinto has particular experience in renewable energy and oil and gas. The firm is the Guatemalan member of the global Lex Mundi network.

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Within: Labour

Valued for its good response times, advice and knowledge’, Mayora & Mayora, S.C.delivers trusted advice’ with ‘great expertise in labour law’. Its ‘excellent’ practice covers a broad spectrum of advice ranging from labour regulations, occupational safety, employment contracts and internal policies, to employee terminations and union matters, and also handles temporary and permanent residence and work permits. The team regularly advises Payless Shoe Source on labour matters, including its representation in labour disputes, the review of regulations with internal policies and the termination of employees; and for IBM Alliance company, GBM, it handles various day-to-day labour matters and labour disputes. In other work it drafted an internal labour policy for Banco Compartamos. Rafael Briz heads the practice; and ‘client-oriented, punctual and knowledgeable’ senior associate Suzel Obiols is ‘fully dedicated to reaching the objectives with clear strategies and quality advice’. The firm’s client roster also includes Monsanto, MERCK and Productos Roche.

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