Founded in 1904, Big Brothers Big Sisters of America is the largest and most experienced youth mentoring organization in the United States. The mission of Big Brothers Big Sisters of America is to create and support one-to-one mentoring relationships that ignite the power and promise of youth. Big Brothers Big Sisters' evidence-based approach is designed to create positive youth outcomes, including educational success, avoidance of risky behaviors, higher aspirations, greater confidence, and improved relationships. Big Brothers Big Sisters has over 230 local agencies serving more than 5,000 communities across all 50 states.