Big Brothers Big Sisters of Southern Nevada is a non-profit 501(c) (3) corporation that is a leader in youth mentoring services. Since 1973, Big Brothers Big Sisters of Southern Nevada has been developing positive relationships that have a direct and lasting impact on the lives of youth in our community, ages 6 through 18. Our mission is to help children reach their potential through professionally supported, one-to-one relationships with mentors that have a measurable impact on youth.