Big Sisters and Little Sisters dancing together at Big Sister Association of Greater Boston's annual summer picnic on Boston's Long Island

Our Mission Statement

Big Sister Association of Greater Boston's mission is to help girls realize their full potential through positive mentoring relationships with women.

Big Sister and Little Sister at a Boston Red Sox game, sponsored by Highland Street Foundation's Highland Hitters program.

Become a Big Sister today.

It isn't about being perfect. It's about being present. Find out how to become a Big Sister today.

Volunteers waiting at the starting line to ride bikes for miles throughout Southeastern Massachusetts to benefit girls mentoring programs

Get Involved.

You don't have to be a mentor to make a difference. Join thousands of men and women supporting Greater Boston's girls through volunteerism and philanthropic contributions.

Woman with coffee and jump rope helping girls jump and play together

Enroll a girl today.

If you want your daughter to have a Big Sister, enroll today with our simple online application.

Governor-elect Charlie Baker posing with Big Sisters and Little Sisters at Big Sister's annual Big In Boston dinner at the Museum of Fine Arts

Annual Gala: Big in Boston

Date: November 8, 2014

Location: Museum of Fine Arts, Boston

Honoring: Jack Connors, Jr.

Rodman Ride for Kids
Join or donate to Team Big Sister today!

News & Events

  • News
  • 06/24/2015
  • Summer Soiree 2015
  • Hosted by our Young Professional Board at Alibi Bar & Lounge
  • Blog
  • 03/18/2015
  • Be Present, Not Perfect
  • Read what Big Sister Kate Blanchard has to say about her journey as a Big Sister and the pursuit of perfection.


What Big Sister Means to Me

Hear what Big Sister means to the women and girls in our mentoring programs. Thank you, FleishmanHillard for creating this inspiring video! Help us get #Girls2Great


Big Sister raises 85% of our annual revenue through private philanthropy; your donation is critical.

Deborah Re CEO Big Sister provides commentary and insight into global and local news impacting girls and women.


 There are times when being emotional is counterproductive, especially in the middle of a crisis, yet when girls and women are told over and over that they are too emotional, we tend to think there is something wrong with us. This article highlights the positives of being emotional, and the downside of trying to squelch emotions.