Mercy Corps http://www.mercycorps.org/
This international aid organization is providing humanitarian relief to Syrian refugees in Lebanon, Iraq and Jordan.
International Committee of the Red Cross (ICRC) http://www.icrc.org/eng/
The ICRC provides water, food, medical materials and other essential items to Syrian refugees.
Save the Children http://www.savethechildren.org/
This organization is providing an array of services to young refugees in Iraq, Egypt, Jordan and Lebanon, including school supplies, health care, food and baby kits. The Crisis Fund page is here.
Doctors Without Borders http://www.doctorswithoutborders.org/
Also known as Médecins Sans Frontières, this organization is providing staff, medical supplies and medical care at hospitals, clinics and refugee camps both in and outside of Syria.
FREE-Syria http://www.free-syria-foundation.org/
This non-profit was founded by a Syrian-American and provides aid to displaced citizens and refugees inside Syria.
SOS Children’s Villages – USA http://www.sos-usa.org
The nonprofit organization for orphaned and abandoned children helps to ensure that vital supplies, educational tools, and psychological support reach Syrian children.