Ewa Rutkowska-Subocz
Environment
Firm PROFILE
ERS Legal
Europe 2026
Rankings
Leading firm in Europe 2026
Ranked Individual
Ranked Individual
Top figures
3
Partners
2026
Established Year
Content provided by ERS Legal
Overview
Provided by ERS Legal
ERS Legal is a Warsaw-based boutique firm built around three pillars: environmental law, investment process security, and EU product and regulatory compliance (REACH, PFAS, BPA, PPWR, GPSR). Founded in 2026 by Ewa Rutkowska-Subocz, Band 1 in Environment (Chambers Europe), formerly head of Dentons' Public Law and Regulatory Practice in Europe, Katarzyna Szadkowska-Piergies, former Legal Director at MKIS and GIOŚ, and Jacek Piecha, PhD, administrative law and regulatory litigation specialist.
Industry sectors (6)
- Manufacturing
- Industrial
- Energy
- Waste Management
- Chemical
- FMCG
Capabilities (15)
- Environmental Law
- Environmental Compliance & Permitting
- Integrated Permits (IPPC)
- Environmental Impact Assessments
- Emissions Trading (EU ETS)
- Waste & Circular Economy
- Water Law
- Contaminated Land & Remediation
- Environmental Litigation
- Investment Process Security
- Administrative Proceedings & Judicial Review
- EU Product Regulatory Compliance
- Chemicals Regulation (REACH, CLP, PFAS, BPA)
- Packaging & Product Compliance (EPR, PPWR, BPA, GPSR)
- Regulatory Risk & Crisis Management
Key people
Provided by ERS Legal
Ewa Rutkowska-Subocz
Partner
Katarzyna Szadkowska-Piergies
Partner
Jacek Piecha
Partner
Work & experience
Provided by ERS Legal
The firm advises industrial, manufacturing, energy, chemical and FMCG clients on integrated permits (IPPC), environmental impact assessments, EU ETS, waste management and contaminated land issues. It has particular strength in defending investment projects and permits against challenges from environmental organisations and local opposition groups. Recent work includes BAT compliance and permit amendment strategies, EU-wide PPWR and PFAS, BPA and GPSR compliance projects.
Notable work
Provided by ERS Legal
Integrated permit strategy for a global life sciences manufacturer (Environmental Law)
2026CompletedPoland
Amendment of an IPPC permit to align with BAT conclusions, including LDAR obligations and compliance timeline.
Defence of energy and infrastructure investments against third-party challenges (Investment Process Security)
2026OngoingPoland
Defending investors' environmental decisions challenged by environmental organisations and local opposition groups.
EU-wide packaging and product compliance programme (Product & EU Regulatory Law)
2026Ongoing
Advising on EU-wide PPWR implementation and BPA Regulation compliance for pharmaceutical and packaging clients.
Ranked Offices at ERS Legal
Provided by ERS Legal
Ranked Individuals at ERS Legal (1)
Poland
View profile
Top figures
3
Partners
2026
Established Year
Content provided by ERS Legal
What success is built on
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