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Enroll a Girl

Igniting Girls' Passion & Power to Succeed

We enroll girls from age 7 – 15 in our programs. Big Sister Boston accepts referrals from parents, guardians, grandparents, teachers, guidance counselors, other family members, and service providers. Enrollment in our programs requires approval by a girl’s parent(s) or legal guardian. If you want a girl in your life to become a Little Sister, call 617.236.8077 or complete the online application form on this page to enroll now.

We are currently making Big and Little Sister matches virtually as a safety measure. All interviews during the enrollment process and visits with your Big Sister will take place online until we have determined that you can safely meet in person. Our Big Sisters will be equipped with tools and support to help them engage with their Little Sisters in a virtual environment.

Big Sister Association of Greater Boston provides mentors to girls in our service area. To refer a boy in this service area, please contact Big Brothers Big Sisters of Massachusetts Bay or Jewish Big Brothers Big Sisters of Greater Boston.


Enroll Today

Ignite her passion and power to succeed now. Enter your Zip Code and choose Big Sister Association of Greater Boston.

You can submit your contact information and we’ll reach out to you or you can complete the entire application online.

How It Works

We're with you every step of the way, from application to meeting your Big Sister!
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Get Matched
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Meet Your Big Sister

Who Can Be A Little Sister?

A Little Sister can be any child between the ages of 7 – 15 who could benefit from the care, support, and attention of a Big Sister. Little Sisters must live in our service area (enter your Zip Code in the box above to see if we serve your town), have the desire to participate in the program, and have approval to participate from their parent or legal guardian. 

At a glance

Other Ways To Enroll

Enroll By Phone

Enroll By Mail

If you would like to download our application and return the form by mail:

Download The Application Forms
Aplicación par a Little Sisters (Hermanas Menores) en español.

Print all forms and fill them out, then: 

Fax Forms To: 617.236.8075, or 

Mail Forms To:
Big Sister Association of Greater Boston
20 Park Plaza, Suite 1420
Boston, MA 02116