CNN has put together this list of humanitarian aid organizations:

International Medical Corps • Direct Relief International • World Vision • International Relief Teams • Yéle Haiti • American Red Cross • Operation USA • CARE • Catholic Relief Services • World Food Programme • World Concern • Save the Children • UNICEF USA • Mercy Corps • Operation Blessing International • Shelterbox • Americares • Operation USA • Doctors Without Borders • Medical Teams International • The International Committee of the Red Cross • The Salvation Army •