The Big Sister Association of Greater Boston nurtures one-to-one mentoring relationships between Little Sisters ages 7-24 and adult Big Sisters. The pairs spend fun times together in the community, at school, or at the Big’s workplace,  supporting Littles' social and emotional development. In addition, Big Sister Boston offers enrichment programs to expand girls' experience with STEM, the arts, wellness, and career awareness.

Volunteer activities have included:

• Community-based 1:1 mentorship

• School- or site-based 1:1 mentorship

• One-time Big for a Day programs for Littles and Bigs waiting to be matched