Alibaba
At this website you are able to find companies which are interested to buy body armor.

EU tenders
At this website you are able to find all EU tenders for anti-ballistic protection garments.  

Interesting body armor information

Movie: surviving a shooting
Flak jackets are slim comfort for troops in Iraq
Using a bulletproof vest
Raising Levels of Ballistic Protection
The Body Armor Vest
Different Kinds of Military Body Armor