Atados Supports several hundred volunteer organizations involved in social work, the environment and health care. Headquartered in São Paulo.

Iko Poran Rio-based service linking volunteers with needy organizations. Iko Poran also provides housing for volunteers. Rio based.

Regua Accepts volunteers from all over the world for reforestation and other conservation work.

Task Brasil (www.taskbrasil.org.uk) UK-based organization that places volunteers in Rio.