Environmental lawyers at Posse Herrera Ruiz strike the right note with clients for being ‘very professional and assertive in their recommendations’. Maintaining a multidisciplinary approach, the group demonstrates strong skill sets in environmental compliance, clean energy, decarbonisation and transactional support matters. Up-and-coming environmental law specialist and department co-head, Erika Serrano, made partner in May 2024 and is highlighted for her ’practical and strategic advice’; she recently advised ONGC Videsh (Colombia branch) on environmental matters related to modifying existing licences to increase hydrocarbon production in Colombia. Other key contacts include fellow co-head Alvaro José Rodríguez, whose environmental law practice is strongly informed by his formidable energy and natural resources expertise; and mid-level associate Sofía Ángel, who is a dedicated environmental practitioner. Junior associate Pablo Mejía left the firm in June 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The team collaborates with clients to find strategic solutions to possible contingencies. It makes a thorough revision of the environmental files aiming to provide advice which will allows the client to minimise contingencies.’
- ‘Erika Serrano leads our team and provides practical and strategic advice.’
- ‘The environmental law team at Posse Herrera Ruiz inspires a great deal of confidence with its advice on the issues with which we require assistance. Lawyers are very professional and assertive in their recommendations.’
- ‘Attorneys at PHR stand out for their professionalism, experience, analytical skills regarding alternative decisions, client follow-up, warmth, transparency, and integrity, we particularly highlight Erika Serrano.’
Key clients
- ONGC Videsh Limited (Colombia branch)
- Anadarko Colombia Company (Colombia branch)
- ATP Ingenieria (in reorganisation)
- Ferrocarriles del Norte de Colombia (FENOCO)
- Mineros Aluvial
- Rizobacter Colombia
- PepsiCo
- Zelestra (Solarpack Colombia)
- MercadoLibre Colombia
Work highlights
Advised Anadarko on environmental matters related to the licensing process for exploratory hydrocarbon drilling in the COL-1 Block.
Advised Mineros Aluvial on various environmental enquiries arising from its daily operations.
Advised Zelestra on structuring its legal defence in an environmental sanctioning proceeding.
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; Erika Serrano