Sustainable cities, city networks & NGOs

African Green City Index
Sustainable Cities Collective
The Mega-Cities Project
UN Global Compact Cities Programme
C40 Cities Climate Leadership Group
Partnership on Sustainable, Low Carbon Transport
Viva
BRTdata.org
South African Cities Network (SACN)
Network of Regional Governments for Sustainable Development (NRG4SD)
Cities Alliance
ICLEI Africa
Cape Town Green Map