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With a diverse, committed network of partners, the Seminar is a great resource for businesses, community groups, and organizations looking to educate and develop their leaders & members.

Our growing network of partners includes longstanding, established institutions, as well as newer, growing entities.  Learn more about becoming a Seminar Partner by contacting us, below.

Our program is profoundly grateful to our past and present supporters


 The Herman and Frieda L. Miller Foundation

Access Strategies Fund

The Boston Foundation

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Partnership with
Third Sector New England

The Seminar is proud of our partnership with Third Sector New England (TSNE), which serves as our fiscal sponsor, and provides both administrative services and strategic guidance to MassCS.


Third Sector New England is a nonprofit organization that provides management support and resources to strengthen individual organizations and build the nonprofit sector’s capacity to advance social justice.


Their programs and services include executive transition support, management consulting, and grantmaking to foster diversity and capacity building. They also provide fiscal sponsorship regionally, and have developed the multi-tenant NonProfit Center for Boston’s progressive social change organizations. TSNE shares the sector’s best practices, with an emphasis on helping to create supportive nonprofit networks.

The Foley Hoag Foundation

 The Ansara Family Foundation

The Cabot Charitable Trust

Become a Seminar Partner

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