Manton Foundation
The Manton Foundation is a private foundation established in 1991 and based in New York City. It was founded by Jim and Gretchen Manton as a vehicle for their charitable giving. Jim Manton was a casualty underwriter who worked for American International Underwriter Corporation (later AIG). Following Jim's death in 2005, the Foundation received over $590 million from his estate, significantly expanding its grantmaking capacity. Today, the foundation is managed by the Mantons' descendants—their daughter Diana Morton and granddaughters Julia Krapf and Sandra Niles—and functions as a collaborative family endeavor.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$691.6M
+4.7% YoY
Annual Giving
$32.9M
+1.0% YoY
Grant Count
75
+21.0% YoY
Avg Grant Size
$439K
-16.5% YoY
Mission & Focus Areas
The Manton Foundation supports "a range of organizations and causes," with primary funding priorities including:
- Education: Including classroom and campus infrastructure projects
- Arts and Culture: Museums, galleries, and cultural institutions
- Medical Research: Including rare disease research and veterinary medicine
- Historic Preservation and Conservation: Environmental nonprofits and historic sites
- Behavioral Health and Mental Health Services
Grantmaking
The foundation accepts invitation-only proposals; unsolicited proposals are not accepted.
Grant Range
$526,356
Average Grant
$526,356
How to Apply
**
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Geographic Focus
Where this funder awards grants
The foundation's grantmaking is primarily concentrated in New England, with some grants awarded in New York and other states.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of December 31, 2023
- Total assets: $660.4 million
- Total revenues: $20.5 million
- Total expenses: $36.6 million
- Investment income and dividends: $11.6 million
- Net gain from sale of non-inventory assets: $7.8 million
- Number of employees: 2
- Total liabilities: $0
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $691,568,485 | $660,409,806 | $631,991,282 |
| Revenue | $32,374,158 | $20,525,182 | $50,467,157 |
| Expenses | $37,082,537 | $36,596,288 | $40,179,579 |
| Qualifying Distributions | $34,474,783 | $34,433,875 | $34,261,933 |
| Net Investment Income | $29,731,052 | $17,896,849 | $45,489,128 |
| Distributable Amount | $32,831,025 | $31,152,113 | $32,956,742 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
152 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
- Diana Morton - Daughter of founders; manages foundation
- Julia Krapf - Granddaughter of founders; manages foundation
- Sandra Niles - Granddaughter of founders; manages foundation
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| SANDRA NILES | TRUSTEE | 10 | $330,000 |
| JULIA KRAPF | TRUSTEE | 10 | $330,000 |
Recent News & Activity
Recent developments and announcements
The foundation has made notable grants in recent years, including:
$12 million to The Courtauld Institute of Art for The Manton Centre for British Art
The Manton Foundation donates $12 Million to The \u0122\uFFFD\uFFFD\uFFFD\$400,000 to BioBus for launching programs in New England
$250,000 grants for frangible technology research in equestrian sports
Manton Foundation Announces Second $250,000 Grant for Frangible Technology | EventingContact Information
- Location: New York City, NY (c/o Anchin, 3 Times Square)
- Phone: 212-840-3456
- Email: grants@mantonfoundation.org
- Website: https://www.mantonfoundation.org/
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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