Private Foundation

THE HEARTSTONE FOUNDATION

THE HEARTSTONE FOUNDATION is a Private Foundation headquartered in BROOKLINE, MA. Financial data from the 2025 filing: $815K revenue, $984K expenses, $13.7M total assets. IRS filings disclose 23 grants awarded by this foundation, totaling roughly $7.2M.

EIN: 206197750 BROOKLINE, MA Private Grantmaking Foundations NTEE: T20 Latest filing: 2025
Total Revenue$815K
Total Expenses$984K
Total Assets$13.7M
Grants Given23
Grant Total$7.2M
Filing Years2020–2025

Sample Grants Given

AMERICAN FRIENDS OF MAGEN DAVID ADOM
NEW YORK, NY · 2025
GENERAL CHARITABLE SUPPORT
$500,000
CONCORD ACADEMY
CONCORD, MA · 2025
GENERAL CHARITABLE SUPPORT
$100,000
THE BELMONT SCHOOL
DEERFIELD, MA · 2025
GENERAL CHARITABLE SUPPORT
$90,000
EAGLE FOUNDATION OF MASSACHUSETTS
HARDWICK, MA · 2025
GENERAL CHARITABLE SUPPORT
$85,000
FIDELITY CHARITABLE
CINCINNATI, OH · 2025
GENERAL CHARITABLE SUPPORT
$69,601

Showing up to 5 of 23 total records — full history available with membership.

Officers & Directors

TRUSTEE Julie Swartz

Officer compensation and complete director data available with membership.

Top Grant Purposes

Education
$3,347,957 10 grants
General Support
$3,008,630 12 grants
Human & Social Services
$812,736 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $815K $984K $13.7M
2024 $1.5M $1.4M $13.9M
2023 $831K $1.0M $13.7M
2022 $87K $1.1M $14.0M
2020 $799K $867K $14.8M

Between 2020 and 2025, reported annual revenue held roughly steady at around $815K, with total assets most recently reported at $13.7M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in MA, NY, OH.

MANYOH

Full geographic grant map with state-by-state breakdown available with membership.

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