Big Brothers Big Sisters of Oklahoma’s evidence-based mentoring programs are designed to create positive, measureable outcomes for youth, including educational success, avoidance of risky behaviors, higher aspirations, greater confidence and better relationships. We match children (we call them Littles) with caring adult role models (we call them Bigs). Our Bigs share experiences with our Littles that expand their world in new ways. Our agency is statewide with headquarters in Tulsa and service delivery offices in Bartlesville, Oklahoma City, Norman, Shawnee, Stillwater and Tulsa.