ICLEI – Local Governments for Sustainability is a global network working with more than 2,500 local and regional governments committed to sustainable urban development.


ICLEI World Secretariat
Kaiser-Friedrich-Str. 7
53113 Bonn

ICLEI – Local Governments for Sustainability is a global network working with more than 2,500 local and regional governments committed to sustainable urban development.

ICLEI Regional Secretariats and country offices


What we are doing

NetZeroCities (NZC) helps deliver the ambition of the Horizon Europe Mission Climate Neutral and Smart Cities, as part of a broader European ambition to achieve climate neutrality before 2050. services and thematic expertise will be aggregated and co-designed through a NZC one-stop-shop Platform and the digital portal and smart repository for impact measurement, capacity building and knowledge/tools dissemination. Cities will benefit from intensive support from dedicated City Guides to navigate the platform and ensure city needs are adequately understood and addressed. NetZeroCities will support pilots in 30 European cities and, in subsequent rounds of engagement, more than 100 cities to achieving carbon neutrality by 2030 (medium-term) and 2050 (long term) respectively, by developing and deploying an integral approach to support climate-neutral transformation in cities. This will be achieved through the co-design and organisation of services, including the Climate City Contract.

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What we are achieving

ICLEI is leading the Climate City Contracting proces and the Vertical Integration Policy Process, and playing key roles in Monitoring and Evaluation, Mission Platform development, Twinning and Upscaling, Finance, Social Innovation, City Engagement, and Communications.

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Austrian Institute of Technology, Bankers without Boundaries, CARTIF Technology Center, Cerema Center for Studies and Expertise on Risks, Climate Alliance, Climate-KIC, Croatia - REGEA, Dark Matter Laboratories, Democratic Society, Demos Helsinki, EIT Urban Mobility, Energy Cities, Energy Efficiency Agency, Environment, Eurocities, European Regions Research and Innovation Network - ERRIN, FinEst Centre for Smart Cities, Frankfurt School of Finance and Management, Fraunhofer Institute for Solar Energy Systems - ISE, Fundacion Tecnalia Research & Innovation, Institute for European Environmental Policy, LGI Consulting, Material Economics, Metabolic, Mobility and Development, OAS Cities, Politecnico Milano, Resilient Cities Network, Rupprecht Consult, South Pole Group, Tecnical University of Madrid, TNO Innovation for life, UITP - International Association of Public Transport, Viable Cities, VTT - Technical Research Centre of Finland,

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ICLEI World Secretariat
European Secretariat
Leopoldring 3
79098 Freiburg, Germany
Brussels Office
Av. de Tervuren 35
1040 Bruxelles
Berlin Office
St. Oberholz ROS Team Room 4.02
Rosenthaler Str. 72a
10119 Berlin
Physical address:
Unit 1, 2nd Floor,
South Tower
Sable Park, 14 Bridge
Century City
Cape Town
South Africa
Tyger Valley, South Africa
ICLEI Africa Foundation
Ebène Junction, Quatre Bornes, Mauritius
North America
USA Office
536 Wynkoop St.
Suite 901
Denver, Colorado
USA 80202
Canada Office
401 Richmond St. W
Studio 204
Toronto, Ontario
M5V 3A8, Canada
British Columbia Office
Victoria City Hall
1 Centennial Square
BC V8W 1P6
Québec Office
Montréal City Hall
275 Notre-Dame St E
QC H2Y 1C6
Central America & the Caribbean
Mexico, Central American and Caribbean Secretariat
Eje Central Lazaro Cardenas 13
Building Miguel Abed, Floor 5 Of. 506 and 507,
Col. Centro, CP 06050 Del.
Cuauhtemoc, Mexico City, Mexico
South America
South American Secretariat
Rua Marquês de Itu 70, 14° andar.
São Paulo, SP, Brasil
CEP 01223-000
Colombia Office
Carrera 53 N° 40A - 31,
Medellín, Antioquia – Colombia
Argentina Office
Boulevard Gálvez, 1150 Planta Alta.
Rosário, Santa Fé, Argentina
South Asia
South Asia Secretariat
c, 3, Green Park Extension Road, Block B, Green Park Extension, Green Park, New Delhi, Delhi, India
Southern Center
Door No. 6-3-596/47/2
Sri Venkata Ramana Colony
Hyderabad 500 004
Andhra Pradesh
East Asia
East Asia Secretariat
14/F, Seoul Global Center Building, 38 Jongno, Jongno-gu, Seoul, South Korea (110-110)
Japan Office
1-14-2 Nishi-Shimbashi,
Tokyo, Japan 105-0003
Kaohsiung Capacity Center
4F. No.436, Daye N. Rd.
Xiaogang Dist.
Kaohsiung City 812
Taiwan (R.O.C.)
Korea Office
217-59 Kintex-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10390, Republic of Korea
Beijing Office
B1010 Xiaoyun Center, No. 15
Beijing 100125,
Southeast Asia
Southeast Asia Secretariat
c/o The Manila Observatory Ateneo de Manila University Campus Loyola Heights, Quezon City 1101 Manila, Philippines
ICLEI Indonesia Project Office
Jl. Karbela Sel. No.46, RT.2/RW.4, Kuningan, Karet, South Jakarta City, Jakarta 12940, Indonesia
Oceania Secretariat
l8/225 Bourke St, Melbourne VIC 3000, Australia