Skip navigation

This page is also available in Estonian


SEI Tallinn carries out applied research, stakeholder engagement and capacity building in the Baltic Sea Region and the EU. Areas of expertise include environmental governance, policy impact assessment, nature conservation, urban biodiversity, climate adaptation, renewable energy, transport, resource efficiency, waste management, sustainable development indicators, valuation of ecosystem services, water resources management and analysis of market-based instruments.

Until 2016, SEI Tallinn used the parallel name of Estonian Institute for Sustainable Development.


Lauri Tammiste

Centre Director

SEI Tallinn

Heidi Grenman

Head of Operations and Collaboration


SEI Tallinn

Johanna Lehtmets

Communications Manager


SEI Tallinn

Stockholm Environment Institute Tallinn Centre (SEI Tallinn)

General questions: [email protected]
Phone: +372 6 276 100
Address: Arsenal Centre, Erika 14, 10416 Tallinn, Estonia
Registry code: 90000966

Map to SEI Tallinn

 Open in Google Maps.

Organizational chart


Organizational chart. The Management Board reports to the Centre Director. The following departments and programmes report to the Management Board: Management Team; Administration; Climate and Energy Programme; Environmental Management Programme; and Sustainable Developmet Programme.


SEI Tallinn Supervisory Board

The Supervisory Board confirms the strategic activities of SEI Tallinn, organises the management of SEI Tallinn and supervises the performance of the Management Board.

SEI Tallinn Supervisory Board members:

  • Måns Nilsson, Executive Director, Stockholm Environment Institute
  • Keit Kasemets, a former Head of European Commission Representation in Estonia
  • Kaja Tael, Estonia’s Special Envoy for Climate and Energy Policy
  • Linnar Viik, Estonian Information Technology Scientist and Entrepreneur

SEI Tallinn Supervisory Board together with SEI Tallinn Director Lauri Tammiste in May 2022. Photo: Anette Parksepp / SEI.

Design and development by Soapbox.