Become a Big

25 Little Brothers are waiting for a Big Brother, Big Couple, or Big Family.

If you can be yourself, you can be a mentor.

Join the Mentor Circle

Your donation positively impacts a child’s life. Not to mention, it makes you a part of something big. Start something now.

Get Involved

Looking for a way to get involved with Big Brothers Big Sisters?  There are lots of opportunities, from becoming a Big, joining the board, volunteering on a committee or attending one of our special events.

Start now!

Enroll A Child

Our vision is to see that all children acheive success in life.  There are no economic or family structure qualifiers for enrollment and our services are always free.

Enroll now!

Donate Now

In the center of all we do are the children we serve. They are surrounded by a team of parents/guardians, volunteers and donors, like you, who support their success in school and life.  Your donations stays right here in your community to reach more children and change their lives for the better, forever.

Donate now!

About Us

Since 1973, Big Brothers Big Sisters of Gallatin County has served thousands of local children.  Our 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.

Learn more!

Legacy Maker














Interested in becoming a corporate partner?  Contact us today!


Holiday Gift Wrap Booth

2017 dates TBD

More info coming soon for 2017! Thanks to all who made our 2016 Gift Wrap Booth a shining success!

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The Big Event

May 20th, 2017

(Photos from the 2016 event can be viewed and downloaded here.) Purchase tickets: Individual $100  //  Table host for 8 with special signage $1100. To purchase tickets you can below or call us at (406)…

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Community Bike Ride Fundraiser

June 18, 2016

Thank you to all who supported the Outdoor Explorers Mentoring Program through Big Brothers Big Sisters, especially Collin's Coalition and all the gracious volunteers! We are so thankful!

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