Catalytic Communities (CatComm)Based in Rio de Janeiro and with a US 501[c][3] charitable status, Catalytic Communities (CatComm) is an empowerment, communications, think tank, and advocacy NGO working since 2000 in support of Rio’s favelas at the intersection of sustainable community development, human rights, local-global networks, communications, and urban planning. CatComm supports and empowers residents of informal settlements, evolving strategically to support their needs as they arise.