1. Linguatower, Inc.
1250 Connecticut Ave NW Ste 200, Washington, DC 20036
Coordinate: 38.90686,-77.04232
Phone: (202) 466-1616
2. Global Language Network
1720 I St NW, Washington, DC 20006
Coordinate: 38.901,-77.04047
Phone: (202) 684-6627
3. Confucius Institute US Center
1776 Massachusetts Ave NW, Suite 410, Washington, DC 20036
Coordinate: 38.90844,-77.04117
Phone: (202) 450-2762