Our History

For more than 100 years, Big Brothers Big Sisters has operated under the belief that inherent in every child is the ability to succeed and thrive in life. As the nation’s largest donor and volunteer supported mentoring network, Big Brothers Big Sisters makes meaningful, monitored matches between adult volunteers (“Bigs”) and children (“Littles”), ages 5 through 18, in communities across the country. We develop positive relationships that have a direct and lasting effect on the lives of young people.

Our local agency was founded in 1973 by a dedicated group of Gallatin County residents.  In our first year, we served a handful of children.  In our last fiscal year, our agency served 100's of children within our service area.  We are incredibly proud of this phenomenal growth, but we still have much more work to do.

In order to keep pace with the rapid growth of our community and the increase in the needs of children and families, we must meet this ambitious goal to reach more families.  This requires engaging record numbers of volunteer Bigs and raising funds to support these matches.


Our Mission


The Big Brothers Big Sisters Mission is to provide children facing adversity with strong and enduring, professionally supported 1-to-1 relationships that change their lives for the better, forever.

Our Vision

The Big Brothers Big Sisters Vision is that all children achieve success in life.

Accountability Statement

By partnering with parents/guardians, volunteers and others in the community we are accountable for each child in our program achieving:

• Higher aspirations, greater confidence, and better relationships

• Avoidance of risky behaviors

• Educational success

Photo by LucaPhotography 

Contact Us


Main Office

15 South 8th Avenue
Bozeman, MT 59715
Phone: 406.587.1216

Big Sky Branch

PO Box 160084
Big Sky, MT 59716
Phone: 406.855.6544

Ennis Branch

PO Box 57
Ennis, MT 59729
Phone: 406.682.5681