359 Blackwell Street
Durham, NC 27701
The letters stand for Family Health International. It is one of the largest organizations bringing improved health care to the developing world. They are involved in over 70 countries, plus the U.S. and its territories. Over two-thirds of their activities are directly health-related and cover a wide range of subjects and needs. They also include clean water, improved educational opportunities, helping girls and women, and many other endeavors. See their website for details.