ICLEI – Local Governments for Sustainability


ICLEI European Secretariat

Leopoldring 3,

79098 Freiburg,


The European Secretariat of ICLEI – Local Governments for Sustainability (ICLEI Europe) addresses local sustainability in Europe, working closely with local governments and their partners to achieve this. Linked to the international association founded in 1990 (as the International Council for Local Environmental Initiatives) at the United Nations in New York, ICLEI has a growing global membership (+1700 cities, towns, counties and their associations worldwide). ICLEI works through performance-based, results-oriented campaigns and programmes to achieve tangible improvements in global environmental and sustainable urban development – www.iclei.org.

ICLEI Europe, based in Freiburg, Germany, has a staff of 80+. Working through thematic teams with a wide range of expertise and extensive experience in European project coordination and partnering, the organisation has a strong focus on building capacity, sharing knowledge, and supporting local governments in the implementation of sustainable development at community level – www.iclei-europe.org.
Building on a wide range of experiences in the field of climate protection, sustainable public procurement, integrated management and urban governance, ICLEI Europe often acts as a facilitator between local government and the private sector that provide advanced and sustainable technical solutions for the urban challenges of today.

Staff Profiles

Andreas Jäger

Andreas Jäger, Officer Sustainable Resources, Climate and Resilience, ICLEI European Secretariat. 

Andreas joined the Sustainable Resources, Climate and Resilience team at the ICLEI European Secretariat as a Project Officer in January 2020. At the Secretariat the primary focus of his work lies on projects seeking to catalyse energy positive / low carbon built infrastructure and sustainable energy development. His buildings expertise is currently being applied in the context of two Horizon 2020 projects and, further, he will be contributing to the Global Alliance for Buildings and Construction (GlobalABC) as well as the Coalition of the Willing on Energy Efficiency in Buildings of the Covenant of Mayors.

Building on his background in architecture and urban planning, Andreas worked in sustainable urban development policy research in Europe and Asia for over six years. To better understand processes that shape our built environment Andreas worked in the private real estate sector, just prior to joining ICLEI.

In the course of his career Andreas has been engaged in research and capacity building in the fields of green buildings, multi-level governance and subnational climate-smart strategy making. In this context he has also contributed to international policy processes, such as Habitat III and the Sustainable Development Goals. Further professional interests of Andreas include public-private partnerships for GHG emissions reductions and renewable energy generation.

Lucy Rusell

Lucy Russell, Officer, Communications & Member Relations, ICLEI European Secretariat

Areas of specialisation:

Communications on energy communities, sustainable mobility and nature-based solutions

  • Communications and dissemination management
  • Exploitation strategies


Roman Mendle, Coordinator, Sustainable Resources, Climate and Resilience Team, ICLEI European Secretariat, Brussels Office

Roman Mendle is a Sustainability Scientist and System Analyst by training and has an eight years track record of team leadership and project management in sustainable urban development with a focus on circular economy, smart cities and digital resilience, city-business collaboration and nature based solutions. He currently leads a portfolio of projects on building data, building energy efficiency and circularity in the construction sector within the Sustainable Resources, Climate and Resilience Team at the ICLEI European Secretariat Brussels Office.

Previously, Roman Mendle served as Smart Cities Program Manager, Global Coordinator and later as Head of Circular Development at the ICLEI World Secretariat in Bonn, where he founded and developed programs such as the Urban Transitions Alliance for industrial legacy cities and ICLEI’s City-Business Collaboration Accelerator CiBiX. He also served as China Liaison for the ICLEI World Secretariat due to his regional expertise and language skills.

Roman Mendle worked at PwC Middle East as Manager in the Cities Team of the Government and Public Sector consultancy practice of the firm, working with the Royal Commission for Riyadh City (RCRC) on their implementation of the U20 Engagement Group to the G20 Summit in 2020, as well as with the Royal Commission for AlUla (RCU) on the setup of their Economic and Social Development Department, where he served as seconded portfolio manager for sustainable construction materials and local food and agriculture systems.