Oxfam is a development, relief, and campaigning organisation that works with others to find lasting solutions to hunger, poverty and suffering around the world.
http://www.oxfam.org

UNICEF is the driving force that helps build a world where the rights of every child are realized. We have the global authority to influence decision-makers, and the variety of partners at grassroots level to turn the most innovative ideas into reality.
http://www.unicef.org

The Red Cross, a humanitarian organization led by volunteers, guided by its the Fundamental Principles, provides relief to victims of disasters and help people prevent, prepare for, and respond to emergencies accross the world.
http://www.redcross.org