The Klarman Family Foundation
The Klarman Family Foundation is a private foundation based in Boston, Massachusetts. It seeks to identify unmet needs and advance solutions, with the intention of helping people thrive in vibrant, healthy communities.
Key facts about The Klarman Family Foundation
In short: The Klarman Family Foundation gave $82.2M across 260 grants in 2024 (avg $316K), top state Massachusetts. Source: 2024 IRS Form 990-PF.
- EIN
- 04-3105768
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $82,184,561
- Grants made (2024)
- 260
- Average grant
- $316,094
- Median grant
- $100,000
- Total assets
- $713,242,338
- Primary geography
- Massachusetts (34% of itemized 2024 grant dollars)
- How to apply
- The majority of the foundation’s grantmaking is by invitation. Full details ↓
- Deadline
- See the foundation’s website for deadlines.
Data from IRS Form 990-PF, 2024; updated October 2026. Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$713.2M
-4.1% YoY
Annual Giving
$82.2M
-8.7% YoY
Grant Count
260
-20.7% YoY
Avg Grant Size
$316K
+15.2% YoY
Under IRS private-foundation payout rules, The Klarman Family Foundation reported a distributable amount of $50.1M for 2024 — the minimum it must pay out in qualifying distributions.
How The Klarman Family Foundation gives
- 77% of 2024 grantees were also funded in 2023. Method
- Giving held roughly steady from 2021 to 2024 (+0%). Method
- In 2024 it paid out 178% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
The foundation says it seeks to identify areas of unmet need and advance solutions through creative thinking, strategic leadership, and strong organizations. Its current areas of focus are advancing understanding of the biological basis of health and illness; ensuring a healthy democracy; expanding access to vital services and enrichment opportunities; and supporting the global Jewish community.
Examples of organizations it supported in 2024 illustrate the range of its grantmaking. ClimateWorks Foundation describes its mission as connecting philanthropy, grantees, and strategic partners to build and deliver high-impact climate solutions. Boston Medical Center says it provides excellent, accessible health services regardless of a patient’s status or ability to pay. Combined Jewish Philanthropies of Greater Boston says it works to sustain and enrich Jewish life in Greater Boston and strengthen bonds with Israel and world Jewry. These are the grantees’ stated missions, not the foundation’s.
Grantmaking
In 2024, the foundation made 260 grants totaling $82,184,561. Grant amounts ranged from $50 to $5 million, with a median of $100,000. It provides general operating, project, and capital support through annual and multi-year grants and does not typically fund endowments.
Among its largest 2024 grants were $5 million to Election Trust Initiative LLC for general initiative support; $4 million to ClimateWorks Foundation for support of the FPC collaborative; $3.85 million to Broad Institute for scientific research; $3.5 million to New Venture Fund for civic participation; and $3 million each to Environmental Defense Fund for its EDF+Business program and Stichting European Climate Foundation for the PIE initiative. Other large grants included $2.075 million to Boston Medical Center for the TEAM UP for Children Initiative and $1.995 million to Combined Jewish Philanthropies of Greater Boston for unrestricted operating support and local agencies.
Review Cycle
See the foundation’s website for deadlines.
Invitation Only
The majority of the foundation’s grantmaking is by invitation. Its website identifies the Crescendo Fund and Community Capital Fund as exceptions. The Community Capital Fund has an open application process for one-time capital grants, typically from $250,000 to $1 million. Eligibility includes being a nonprofit public charity or fiscally sponsored project, having been in existence for at least five years, and having site control or being in the process of securing it. Eligible projects must involve a capital project such as facilities or land acquisition, construction, renovation, repair, preservation, or major equipment. Massachusetts organizations may apply; funding is prioritized for projects in, or significantly engaging residents of, specified Boston neighborhoods and cities. Endowments, private foundations, and religious organizations seeking grants primarily for sectarian purposes are ineligible. Current grantees with capital needs are asked to contact their program officer before applying.
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Geographic Focus
Where this funder awards grants
The foundation is based in Boston. In 2024, 34% of grant dollars went to recipients in Massachusetts, 23% to recipients in Washington, DC, 10% to California, and 8% to New York. The foundation’s Community Capital Fund welcomes applications from organizations across Massachusetts, with funding prioritized for projects in specified Boston neighborhoods and cities.
Grant Distribution by State
Share of 2024 grant dollars across all 260 itemized grants.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $80.8M (2020) to $90.0M (2023). In 2024 it made 260 grants totaling $82.2M.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Election Trust Initiative LLC ($5.0M). Together the top 10 received $34.4M.
Grant Size Distribution
1,284 grants across all recorded years
The most common grant size was under $50K: 434 grants of 1,284 (34%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Election Trust Initiative LLC Washington, DC | General initiative support | $5,000,000 |
| ClimateWorks Foundation San Francisco, CA | Support for the FPC collaborative | $4,000,000 |
| Broad Institute Inc Cambridge, MA | Support for scientific research | $3,850,841 |
| New Venture Fund Washington, DC | Support for civic participation | $3,500,000 |
| Environmental Defense Fund Incorporated New York, NY | Support for the EDF+Business program | $3,000,000 |
| Stichting European Climate Foundation | Support for the PIE initiative | $3,000,000 |
| The SchwartzReisman Science Education Center Rehovot (RA) | To support the advancement of Arab Israeli students and capital project support | $2,800,000 |
| Boston Medical Center Corporation Boston, MA | Support for the TEAM UP for Children Initiative | $2,075,000 |
| Contina Impact Sacramento, CA | Support for a safety and security infrastructure fund | $2,000,000 |
| Combined Jewish Philanthropies of Greater Boston Inc Boston, MA | Unrestricted operating support and support for local agencies | $1,995,000 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grant sum | Grant count |
|---|---|---|---|---|---|
| 2024 | $713,242,338 | $74,495,257 | $105,297,791 | $82,184,561 | 260 |
| 2023 | $744,037,214 | $72,505,265 | $109,524,195 | $89,989,220 | 328 |
| 2022 | $781,032,266 | $132,725,348 | $106,605,858 | $86,255,497 | 328 |
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $713,242,338 | $744,037,214 | $781,032,266 |
| Revenue | $74,495,257 | $72,505,265 | $132,725,348 |
| Expenses | $105,297,791 | $109,524,195 | $106,605,858 |
| Qualifying Distributions | $89,191,517 | $96,112,184 | $91,871,782 |
| Net Investment Income | $44,687,350 | $60,134,025 | $67,523,313 |
| Distributable Amount | $50,055,741 | $46,944,408 | $48,603,861 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Seth A. Klarman and Beth S. Klarman as trustees, Kim McCabe as president, and Steven Moore as chief operating officer.
The Klarman Family Foundation is led by Kim McCabe, President since 2021 (on filings since 2020); 2 of 4 officers listed in 2024 are compensated.
Officers on the 2024 filing
Kim McCabe
President
Executive Director → President, 2021
On filings since 2020
40 hrs/week
$384K (2020) → $544K (2024)
Beth S Klarman
Trustee
On filings since 2020
15 hrs/week
No compensation reported
Seth A Klarman
Trustee
On filings since 2020
5 hrs/week
No compensation reported
Steven Moore
Chief Operating Officer
COO → Chief Operating Officer, 2021
On filings since 2020
40 hrs/week
$276K (2020) → $390K (2024)
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $544K, to Kim McCabe (President). 2 officers or directors reported compensation on that filing.
Contact
Application contact: Erin Samuel - The Klarman Family Fo
Mailing address: PO Box 171627, Boston, MA 02117
Phone: (617) 236-7909
Email: info@klarmanfoundation.org
Website: https://klarmanfoundation.org
Frequently asked questions about The Klarman Family Foundation
How much does The Klarman Family Foundation give each year?
The Klarman Family Foundation gave $82.2M across 260 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $90.0M across 328 grants.
What is The Klarman Family Foundation's typical grant size?
The Klarman Family Foundation's median grant in 2024 was $100,000, and its average grant was $316,094, across 260 grants on its 2024 IRS Form 990-PF.
Where does The Klarman Family Foundation give grants?
The Klarman Family Foundation's top state is Massachusetts, with 34% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were District of Columbia (23%) and California (10%). The most frequent recipient cities were Boston, MA (68 grants), Washington, DC (25 grants), New York, NY (19 grants) and Dorchester, MA (6 grants).
Does The Klarman Family Foundation give general operating support?
Yes: 40% of The Klarman Family Foundation's 2024 grants with a stated purpose (103 of 260) were for general or operating support, per its 2024 IRS Form 990-PF. Recurring purposes include "Employee matching gift" (45 grants), "Capital project support" (18 grants) and "Support for music education programming" (12 grants).
Who are The Klarman Family Foundation's largest grantees?
The Klarman Family Foundation's largest 2024 grantees include Election Trust Initiative LLC ($5,000,000), New Venture Fund ($5,000,000 across 2 grants) and ClimateWorks Foundation ($4,000,000), according to its 2024 IRS Form 990-PF. Together they received 17% of its itemized 2024 grant dollars.
How large is The Klarman Family Foundation?
The Klarman Family Foundation reported $713.2M in total assets on its 2024 IRS Form 990-PF. It paid out $89.2M in qualifying distributions that year, against a required minimum of $50.1M (roughly 5% of its investment assets).
What does The Klarman Family Foundation fund?
The foundation says it seeks to identify areas of unmet need and advance solutions through creative thinking, strategic leadership, and strong organizations. See mission & focus areas ↑
How do I apply for a grant from The Klarman Family Foundation?
The majority of the foundation’s grantmaking is by invitation. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Klarman Family Foundation's EIN?
The Klarman Family Foundation's EIN (Employer Identification Number) is 04-3105768. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
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