Environmental Law 2025

FINLAND Law and Practice Contributed by: Kari Marttinen, Laura Leino, Outi Iso-Markku and Aino Lahti-Nuuttila, Erottaja Attorneys Ltd

Erottaja Attorneys Ltd is a new boutique law firm with a focus on delivering exceptional quality advice in carefully selected fields of law. This is achieved by combining deep insight and extensive experi- ence with high-level, solution-oriented legal advice – always keeping matters in the hands of dedicated specialists. The firm’s goal is to help our clients solve

legal challenges of today and tomorrow – whether they involve artificial intelligence, climate change, or shifts in the market landscape. The firm specialises in environmental, real estate, technology, EU and com- petition law, insolvency law, and complex dispute resolution.

Authors

Kari Marttinen is a partner at Erottaja Attorneys Ltd and heads the firm’s environmental practice together with Laura Leino and Outi Iso-Markku. His areas of expertise include complex permit and appeal processes relating

Outi Iso-Markku is a partner at Erottaja Attorneys Ltd in the company’s environmental practice and has more than ten years’ experience in advising clients on issues concerning environmental and

to major industrial and infrastructure projects as well as land use planning processes. Kari advises clients regarding pollution liabilities in old industrial areas and related disputes. Moreover, Kari’s strong expertise includes conflict resolution related to nature protection and infrastructure. He has held the principal responsibility as an environmental attorney in several major projects, like harbours, nuclear power plants, conversion of power plants to biofuels and oil refineries.

water permits, environmental liabilities, environmental impact assessments, nature conservation, and land use planning. Her specific areas of expertise also include waste legislation and environmental criminal law. Outi has broad experience of assisting a wide range of industrial clients in environmental administrative court procedures. She also provides daily support to operators developing large and complex industrial projects in sectors such as forestry, energy, batteries, chemicals, mining and infrastructure. Outi is a member of the Finnish Bar Association’s environmental law expert team.

Laura Leino is a partner of the environmental practice at Erottaja Attorneys Ltd specialising in advising clients on environmental law and regulatory matters, especially with regard to energy and green transition

Aino Lahti-Nuuttila is an associate at Erottaja Attorneys Ltd advising clients on environmental law matters. Aino has extensive experience assisting clients from various industrial sectors in environmental and water permit

projects. With dual qualifications in law and hydrobiology, Laura has an in-depth understanding of matters relating to environmental conservation and water law. She has extensive practical experience of assisting clients on permit, environmental impact assessment and land use processes for large energy, infrastructure, and industrial projects. Laura also has relevant experience with the Supreme Administrative Court, where she specialised in environmental and land use matters, as well as at an energy and environmental consulting firm, an energy company, and the United Nations.

procedures, environmental impact assessments, and legal issues related to land use planning, nature conservation, and environmental liabilities. Her expertise also includes assisting clients in administrative court proceedings. Prior to joining the firm, Aino worked at an international consulting company specialising in corporate law as well as mergers and acquisitions.

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