Become a Big

By becoming a Big Brother, Big Sister, Big Couple or Big Family you can truly influence the life of a child, and you will both be forever changed by the experience. Big Brothers Big Sisters of Gallatin County offers a variety of volunteer experiences. 

Discover how you can make a difference:

  • Are you at least 18 years old?
  • Do you have a couple extra hours a week, a valid drivers license and an insured vehicle?
  • Can you make an 18 month commitment?
  • Do you enjoy kids and having fun?

Apply Now!

Big Brothers Big Sisters serves children ages 5-15 in our local community.  Their backgrounds and personalities are unique, but they all have a need for friendship with a caring adult.  We ask our volunteers for an 18 month commitment, and to spend 1-2 hours, a week with the child. Big Brothers are matched with Little Brothers and Big Sisters with Little Sisters, or Little Brothers ages 5-8. This is also a great opportunity for Big Couples and Big Families to be matched with a child. Activities that many matches enjoy are going to the park, walking the dog, going fishing, arts and crafts, making dinner together and many other activities. We have a list of activity ideas here.

Commitment Level: 18 months, 1-2 hours a week

Enrollment Process

  1. Application (complete the following 2 steps):
    Click here to complete the application, or call BBBSGC at (406) 587-1216.
    Click here to download and print our Preinterview Questionaire
  2. Three References: We will contact the three people you have provided us with on your application.
  3. Interview: Once we receive your completed application, our Enrollment Specialist will call to schedule an appointment for an interview.  The interview usually takes about an hour. This is a great opportunity for us  to learn more about you!  They learn why you are volunteering, what you like to do in your spare time, and find out more about your personality, likes, dislikes and preferences, and decide which child would best suit you.
  4. Auto Insurance, Driver's License & Application Fee: Bring your auto insurance card, driver's license and $15.00 application fee with you to the interview. We will make a copy of  your driver's license and auto insurance card for you.
  5. Matching Process: Once you have completed the enrollment process, your file will be reviewed. We will notify you if you have been accepted/non-accepted into our program. If you have been accepted, we will then contact you to tell you about a potential Little. You are under no obligation to accept the child the agency proposes to you. If you accept, we will contact the Little and the Parent to tell them about you. When all parties agree, we will schedule a match meeting between you, the parent, the child and the Match Support Specialist.  At that meeting, boundaries, expectations, rules and goals will be discussed. You will then officially be matched, and you can start meeting with your Little Brother or Sister to enjoy activities together!

School Based Bigs

School Based Bigs are available in Ennis and Big Sky.


Volunteer Orientation

Pre-Enrollment Form
Pre-Interview Questionnaire
Return to: [email] or 15 South 8th, Bozeman, MT  59715

Any questions, please call the office at (406)587.1216 or [email].

Waiting List

18 boys and 11 girls are waiting for a mentor like you!

For a few hours, a couple times a month, you can give a Little the invaluable gift of your friendship. By simply changing their perspective of what the world can offer, you can literally start changing their lives. And sometimes it’s as simple as playing video games, going to a museum, or just hanging out together.

Match Resources

Find out about free upcoming events that you and your Little can participate in.  Match Resources

Other opportunities to get involved:

    If you know of a child between the ages of 5 and 15 who would benefit from a caring adult in his/her life, enroll him or her in our program.  Simply call our office for more information.
    Committees oversee all of our special events, volunteer programs, public relations and marketing efforts.  Big Brothers Big Sisters of Gallatin County relies heavily on community volunteers to serve on our committees.
    Local businesses can receive great marketing exposure, and help us to underwrite the costs of our very popular special events as corporate or individual sponsors.
    Funding for Big Brothers Big Sisters of Gallatin County also comes from our very generous community members!  The services we provide to the children of Gallatin County are made possible through donations generated from individual donors and donations to our special events.
    We do our best to keep the cost incurred by our volunteers.  Donations of tickets to sporting events, concerts, and community events allow our Bigs and Littles to enjoy these activities together, at no cost to the volunteers.  Additionally, community members can host fun activities and outings for our matches, or donate such things as sports and outdoor equipment.

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