Bustamante Fabara stands out for its breadth of competition and antitrust law expertise, covering the full array of merger control matters, regulatory challenges with the competition authority and antitrust investigations, as well as monopoly and abuse of dominance cases. The group has a wealth of experience in merger control, an area of focus for José Rafael Bustamante C, and the team often operates in tandem with the firm’s M&A department on such matters. Bustamente leads the team together with María Rosa Fabara Vera and Diego Ramírez. Vera is noted for her extensive knowledge of the Ecuadorian competition law framework and relationships with competition law authorities, while director Daniel Castelo is strong in judicial appeals before antitrust authorities and regulatory authorities, which is also a strength of the wider group.

CorralRosales' vast experience in corporate matters and cross-border deals is a key element of its competition law practice, which advises on antitrust investigations, merger control, restrictive practices, abuse of dominance and cartel mandates. Xavier Rosales and Ana Samudio head up the team. Samudio often advises on matters in the technology and telecoms sectors and is active in proceedings at the administrative level. Rosales stands out for merger clearance processes and antitrust investigations, often representing clients in investigations in front of regional, national and international antitrust authorities. Clients regularly turn to Francisco Rosales for due diligence stemming from competition issues.

Pérez Bustamante & Ponce advises a growing client base, including regional and national telecoms, entertainment, food and beverage, and healthcare companies, on the full range of antitrust matters, and is regularly involved in high-value transactions. Experienced litigator Diego Pérez-Ordoñez leads the department, often overseeing contentious matters such as abuse of market power issues, and is supported by director Mario Navarrete, who works on antitrust matters including landmark cases in front of the antitrust authorities and who was promoted to partner in January 2025. Senior associate Andrés Rubio-Puente is another key practitioner in the team.

The former Sperber & Álvarez merged into global consultancy group Andersen's Ecuadorian office in April 2024, bringing the latter additional capability in a range of practices, competition and anti-trust arguably foremost among them. David Sperber is undoubtedly one of the foremost names in Ecuador for competition and anti-trust matters, having been the first individual to establish a competition boutique upon the entry passing of relevante legislation back in 2011/12; he handles the full range of antitrust matters and has considerable experience in cases before the Ecuadorian Competition Authority. Sperber is supported by directors Pablo Lara, whose practice centres on competition (particularly as regards strategic industries), regulatory and administrative law, corporate advisory and dispute resolution; and Cynthia Andino, whose competition focused practice also reached into trade matters. Recent cases include successfully obtaining the reduction of a $4m sanction levied by competition regulator ECA against Uniconfor 'gun-jumping' to $120,00 - although  the case remains on appeal.

Robalino stands out for its work in merger filing and clearance matters as well as its advice on associated regulatory issues. Notably, the group also operates at the forefront of the cartel investigations space, assisting the Ecuadorian agency with discovering alleged cartels. Daniel Robalino, who oversees the team, is key in this regard, particularly for cross-border cartel matters. Jorge Duque is a standout practitioner at the associate level and is key for antitrust issues such as antitrust investigations, a strength of the wider group.

Almeida Guzmán & Asociados advises some of the most well-known automotive companies internationally, as well as a range of other clients throughout the free trade area in the Andean region. The team has strong knowledge of merger control reviews, unfair competition claims and alleged abuse of dominant position issues. Practice head Alberto Brown is emblematic of the group's ability to assist clients throughout the merger control process, including post-merger assistance. José Vallejo is active in assisting with investigations into potential antitrust and unfair competition violations.

Lexvalor Abogados excels in advising on competition law regulation and is equipped to handle a broad spectrum of competition and antitrust law matters, including merger control, state aid and unfair competition. The team is focused on the retail industry, with a track record of assisting established retailers such as supermarkets in Ecuador with competition law matters, an area in which Ricardo Peñaherrera is well established. Peñaherrera leads the team alongside Luis Marin Tobar, an experienced competition lawyer.

Pino Elizalde Abogados advises on complex antitrust matters in highly regulated sectors such as the hydrocarbon industry. The group is well versed in advising clients on competition regulation and compliance programmes to prevent competition infringements, and investigations into alleged abuse of dominance. Marco (Valentín) Elizalde, who has a strong reputation for appearing before the competition authority, and Jorge Cedeño, who was promoted to partner in January 2025, head the team. Elsewhere, Rafael Ulloa is active in cases before the competition authority in Ecuador. Senior counsel Jessica Medina is also a name to note in the team.

AVL Abogados’ competition and antitrust practice covers industries such as pharmaceuticals, telecoms, food and beverage, insurance and technology. The team collaborates closely with the firm's M&A specialists to manage merger control and obtain necessary approvals. It is led by Xavier Andrade Cadena and María de los Ángeles Lombeyda, who are supported by senior associates Estefanía Fierro Valle, who handles investigations, and Francisco Ortiz Pérez, who specialises in competition and M&A matters in the energy, mining and food sectors.

ECIJA GPA has vast experience appearing before national competition authorities and hosts several competition law experts whose core strengths including advising on pricing policy and strategy, as well as complex areas of antitrust compliance regulation. Michael Veintimilla leads the team and is entrusted by the team’s German clients, and for unfair competition matters. At the associate level, Bernardo Maya has expertise in market abuse cases and compliance with Ecuadorian competition regulations.