
Bustamante Fabara fields a well-established tax practice that advises multinational and leading domestic companies on a broad range of contentious and transactional tax matters. The team is particularly active in tax credit claims and disputes concerning income tax liabilities and taxes arising from capital gains transactions. Diego Pino heads up the practice and specialises in contentious tax proceedings and international tax, trade and customs issues. Sofía Gordillo, who was promoted to associate director in May 2026, focuses on tax planning, administrative proceedings and tax disputes.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- The practice is unique because of the transparency the legal team maintains with us as clients. Not only that, but they resolve any need that arises quickly and efficiently. And furthermore, they excel at communication.
- Diego Pino, the partner, is very attentive to solutions and personally handles each case. Sofía Gordillo, the lawyer on our case, was always present and attentive to our needs, providing solutions to each one. I highly recommend working with her on tax matters.
- The Tax team at Bustamante Fabara is very proactive in finding solutions and, from my perspective, stands out for its technical expertise, strategic approach, and ability to find and offer practical and efficient solutions to highly complex matters. I believe the Tax team excels in its responsiveness, availability, and understanding of business needs, providing clear, timely, and results-oriented advice.
- What I value most as a client is their ability to translate complex tax matters into clear business decisions. In specific areas where they've helped me, their handling of international taxation and internal compliance with regulations before the Chilean Internal Revenue Service (SRI) is excellent—technical and very clear, especially on sensitive issues like Double Taxation Treaties. What I appreciate most is their ability to share their knowledge with me, as a client, in a very clear and concise way.
- I want to emphasize the clarity with which Diego Pino, Sofía Gordillo, and Carolina Medina explain the subject matter, making it very easy to understand. Their explanations ensure that their recommendations are fully understood and appropriate for the situation.
- Bustamante Fabara is always innovating, staying up-to-date, and providing excellent service. Furthermore, it offers internal tools to both clients and lawyers to streamline processes. I believe the inclusion of women in the firm is fundamental and important.
- The personalized service is excellent; they form an exceptional team between client and lawyer, and their support throughout the process is the key to their success. Congratulations.
- Effective care, with solutions to problems.
- Excellent, highly trained professionals.
- The service attitude is very good.
Key clients
- Abbott Laboratorios del Ecuador
- Lactalis del Ecuador
- Orangine Group
- Pepsico Alimentos del Ecuador
- Grupo CID
- Baldeón & Oñate Asociados Ecuahierro
- Tiendas Industriales Asociadas
- BASF Ecuatoriana
- Pfizer
- B. Braun Medical
- Abbott Laboratorios del Ecuador
- FADESA- MANTA
- Paneles Latinoamericanos Panelat Ecuador
- Marclaim
- Aglomerados Cotopaxi
- Cusho
- Construmercado
- Intertek International Limited
- IASA-Transporte
Work highlights
Represented Abbott Laboratorios del Ecuador in a constitutional challenge against Ecuador’s customs authority.
Advised Orangine Group on the tax structuring, submission and negotiation of investment contracts with the Ecuadorian State in connection with new productive investments.
Represented Pepsico Alimentos del Ecuador in tax assessment disputes initiated by the Ecuadorian Tax Authority (SRI) for fiscal years 2016–2018.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Diego Pino
Other key lawyers
Sofía Gordillo

