Since its inception, Big Brothers Big Sisters has operated under the belief that inherent in every child is the ability to succeed and thrive in life. As part of the nation’s largest donor- and volunteer-supported mentoring network, Big Brothers Big Sisters of Snohomish County makes meaningful, monitored matches between adult volunteers (“Bigs”) and children (“Littles”), ages 6 through 18. We develop positive relationships that have a direct and lasting effect on the lives of young people.