Council on International Educational Exchange - An international education organization offers programs that allow high school & university students to study and teach abroad.
https://www.ciee.org/
Eastern States Student Exchange - Provides young people the opportunity to experience the cultures, problems and accomplishments of people in other countries.
https://www.exchangestudent.org/
Global Leadership Adventures - Teen volunteer abroad with inspirational community service organizations.
https://www.experiencegla.com/
Sustainablesummer.org - Providing environmental study abroad and leadership programs for high school students.
https://sustainablesummer.org/