Big Sister raises 85% of our budget annually through private philanthropy. Your cash contribution is critical to our success. 

This pandemic has amplified inequities in our community and put a spotlight on the social isolation of girls we support as Little Sisters. During this time of social distancing, our staff and Big Sister mentors have been innovative in creating ways to ensure that our Little Sisters are emotionally connected to their Big Sisters. Our staff designed a Virtual Mentoring Toolkit so that our Little Sisters receive the ongoing support and advice they have come to depend on from their Big Sisters. We have also created virtual activities for the girls on our wait list. And, we are in contact with families and are actively connecting them to community resources to help alleviate food insecurity and other difficult issues they are facing. 

Big Sister's door never closes. We are community connectors, strengthening the resiliency of the girls of Greater Boston

As we are working out of the office in alignment with Governor Baker’s recommendations for businesses, gifts made online or via EFT are preferred to payments by check at the current time. 

During this time of physical distance, our Little Sisters need to know that their community is here supporting them. By making a monthly gift you are providing consistent funding that will have an immediate impact. Simply select the recurring option in our donation form to make your gift on a regular schedule. Read more about our COVID-19 active response here.

If you would like to make a gift over the phone or have questions about donating to Big Sister Boston, please contact Alejandra Osio, Development Operations Coordinator, at 617.236.5326. or email her.‚Äč

What Your Gift Supports:

  • Recruiting women to become Big Sisters – we are continuing to recruit volunteers to be matched with girls on our waitlist.
  • Professional training by our staff for women to become effective mentors – we are shifting to offering virtual trainings during this time.
  • Individual, customized support for Big and Little Sisters throughout their relationship – our staff are continuing to support their matches and provide them with new ways to connect.
  • Enrichment programs that support girls' healthy development, such as physical fitness and wellness activities, career exposure, college prep, and workshops on puberty and sexual health – while we are not offering in-person programs, we are exploring opportunities for virtual enrichment activities for our Big and Little Sisters.
  • Pathways to college and career success through the Our Big Futures* program that provides coaching and resources for Little Sisters through the age of 24 – we are moving forward with this program and expect to fully launch it this summer.

Learn more about what your gift supports.

Additional Giving Options:


During this time, we prefer to not receive donations by mail, but if you must make a gift by check, please make the check payable to:

Big Sister Association of Greater Boston

And mail to:

Big Sister Association of Greater Boston
20 Park Plaza, Suite 1420
Boston, MA 02116

*If you are interested in funding opportunities specific to Our Big Futures or if your company or organization would like to offer internships, career awareness tours, or workshops to our Little Sisters, please contact Heidi Ziobro, Interim Chief Operating Officer, at 617.236.8374 or email her.
Click here to view Big Sister Association of Greater Boston's most recent 990 form.


If you are unable to make a gift online due to browser restrictions, please contact Alejandra Osio, Development Operations Coordinator, at 617.236.5326 to make your gift securely over the phone.