Providing ‘agile and business-oriented solutions’, Posse Herrera Ruiz maintains a full-service environmental law offering that continues to grow, as evidenced by the addition of 11 new clients to its roster during 2025/26, including ONGC Videsh Sucursal Colombiana. The team excels in regulatory compliance and administrative processes, while also acting alongside its energy and corporate groups to handle transactional support work. Alvaro José Rodríguez heads the overarching energy and natural resources department and brings regulatory and transactional experience. Next-generation partner Erika Serrano is dedicated to environmental law matters, where she handles project development-related issues, permitting processes and sanctioning procedures; she recently advised Bancolombia on an environmental remediation plan concerning a high-profile contaminated-soil matter. In August 2025, mid-level associate Sofía Ángel left to study abroad.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- Erika Serrano is an outstanding lawyer on the team. Her extensive legal, regulatory, and technical knowledge of environmental matters—particularly regarding environmental permits for renewable energy projects—positions her as a leading expert in this sector. Erika is known for staying up-to-date, providing precise analyses, and delivering exceptional client service with prompt, focused responses that are easily understood by all levels of an organization. Her approachability and friendliness foster better teamwork and a deeper understanding of the legal analysis provided. These qualities, combined with her practical approach and ability to anticipate regulatory risks and opportunities, clearly distinguish Erika and her team from other firms and provide real added value to clients.
- The environmental team is excellent; it stands out for its legal rigour and technical understanding, especially in environmental permits and the development of environmental requirements for renewable energy projects. It has solid experience in complying with environmental requirements and regulations, permits and risk management; moreover, it provides agile and business-oriented solutions.
Key clients
- ONGC Videsh Sucursal Colombiana
- Anadarko Colombia Company
- ATP Ingeniería
- Ferrocarriles del Norte de Colombia (FENOCO)
- Mineros Aluvial BIC
- Rizobacter Colombia
- Grenergy Colombia
- Zelestra Colombia
- Mercado Libre Colombia
- Asociación de Energías Renovables Colombia (SER Colombia)
- Durman Colombia
- C.I. Cargill de Colombia
Work highlights
Advised Bancolombia on the design, structuring and implementation of a complex environmental remediation plan.
Advised Mineros on structuring an environmental impact assessment.
Represented Jinko Power Colombia in an administrative appeal against a resolution issued by ANLA modifying the environmental licence for the El Edén solar project.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Álvaro José Rodríguez