Our History

Big Brothers Big Sisters of America was founded in 1904, and celebrated its 100th year of service to children in 2004.  
Big Brothers Big Sisters of Gallatin County is an important part of the movement to bring extremely effective and life-changing relationships to many more children.  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 476 children within our service area.  We are incredibly proud of this phenomenal growth, but we still have much more work to do.

We have made it a goal to double the number of Gallatin County children served in active match relationships.  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.  This requires engaging record numbers of volunteer Bigs and raising funds to support these matches.

Big Brothers Big Sisters is a proven prevention program for youth, providing needed support to children in our local community through professionally supported one-to-one relationships.  Each of us can remember a special adult who made a difference in our lives when we were children.  Through Big Brothers Big Sisters, we can ensure that children in our community have positive adult role models in their lives.


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.

Photo by LucaPhotography 

Our Impact

Big impact—proven results

We’ve always known we were making a positive impact on children and empowering them to succeed. A nationwide study confirmed it for us.

Each time Big Brothers Big Sisters pairs a child with a role model, we start something incredible: a one-to-one relationship built on trust and friendship that can blossom into a future of unlimited potential. And thanks to the first-ever nationwide impact study of a mentoring organization, we have the facts to prove it.

The Study

Public/Private Ventures, an independent Philadelphia-based national research organization, looked at over 950 boys and girls from eight Big Brothers Big Sisters agencies across the country selected for their large size and geographic diversity. This study, conducted in 1994 and 1995, is widely considered to be foundational to the mentoring field in general and to Big Brothers Big Sisters Community-Based program in particular.

Approximately half of the children were randomly chosen to be matched with a Big Brother or Big Sister. The others were assigned to a waiting list. The matched children met with their Big Brothers or Big Sisters about three times a month for an average of one year.

Researchers surveyed both the matched and unmatched children, and their parents on two occasions: when they first applied for a Big Brother or Big Sister, and again 18 months later.

The Results

Researchers found that after 18 months of spending time with their Bigs, the Little Brothers and Little Sisters, compared to those children not in our program, were:

  • 46% less likely to begin using illegal drugs
  • 27% less likely to begin using alcohol
  • 52% less likely to skip school
  • 37% less likely to skip a class
  • 33% less likely to hit someone
They also found that the Littles were more confident of their performance in schoolwork and getting along better with their families.

“We have known all along that Big Brothers Big Sisters’ mentoring has a long-lasting, positive effect on children’s confidence, grades, and social skills,” affirms Karen J. Mathis, Big Brothers Big Sisters of America’s President and CEO, “and the results of this impact study scientifically confirm that belief.”

“These dramatic findings are very good news, particularly at a time when many people contend that ‘nothing works’ in reaching teenagers,” said Gary Walker, then-President of Public/Private Ventures. “This program suggests a strategy the country can build on to make a difference, especially for youth in single-parent families.”

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

West Yellowstone Branch

PO Box 655
West Yellowstone, MT 59758
Phone: 406.646.1015

Giving Levels


Legacy Matchmaker $20,000
Big Dream Maker $10,000
Magic Maker $5,000
Wish Maker $2,500
Match Maker $1,000
Vision Maker $500