Established in 1992, IPÊ – Institute for Ecological Research – has as its mission to develop and disseminate innovative models for biodiversity conservation, which promote socio-economic benefits through science, education and sustainable business. The IPÊ emerged from the diversification of activities originally developed by the Black Lion Tamarin Conservation Program (BLTCP) since 1984. A working model was developed from these previous experiences, integrating applied research, population, habitat and landscape management, environmental education, community involvement and influence of public policies. IPÊ has become one of the largest environmental NGOs in Brazil, developing conservation and sustainable development projects for over 20 years, within seven different regions of the country, targeting habitats such as Atlantic and Amazon forests and Pantanal (wetlands), and performing species conservation projects quoting lowland tapirs, black and black-faced lion tamarins, river manatees, jaguars, among other endangered species. The projects combine community involvement and capacity building to local sustainable development processes that in turn favors the conservation of species, habitats and ecosystem services. This proposal focuses on the conservation of black lion tamarins (Leontopithecus chrysopygus) at the Atlantic forest of Serra de Paranapiacaba (23°57'S; 47°48'W) and surrounding areas (23º47’S; 48º41’W), in southeast Brazil, more especifically in the southeast portion of São Paulo state. It is part of a larger program executed by IPÊ-BLTCP that is completing, in 2014, 30 years of activities towards the conservation of this particular species. This is also the team responsible for the implementation of actions concerning BLT conservation in the wild, from the National Action Plan for the Conservation of Central Atlantic Forest Mammals (PAN MAMAC/ICMBio).