Peter and Ann Lambertus Family Foundatio
The Peter and Ann Lambertus Family Foundation is a private grantmaking foundation established in July 2019 and based in Norwood, Massachusetts. The foundation was created by Peter K. Lambertus, founder and former CEO of Charles River Development (acquired by State Street Corporation in 2018 for $2.6 billion), and his wife Ann W. Lambertus. The foundation received a significant initial contribution of $250 million in 2018, establishing it as a major philanthropic entity with substantial resources for charitable giving.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$297.9M
+12.2% YoY
Annual Giving
$13.9M
-5.1% YoY
Grant Count
66
-14.3% YoY
Avg Grant Size
$211K
+10.7% YoY
Mission & Focus Areas
The foundation has not publicly specified a formal mission statement. The organization operates without designated subject area restrictions, supporting a diverse range of philanthropic efforts across multiple sectors including education, human services, and philanthropy itself.
Grantmaking
The Peter and Ann Lambertus Family Foundation operates exclusively through invitation-based grantmaking and does not accept unsolicited applications. All grants are made to preselected charitable organizations identified by the trustees.
Grant Range
$1,000 to $10,000,000
Average Grant
$197,000–$201,700
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Geographic Focus
Where this funder awards grants
The foundation supports organizations across multiple U.S. states and cities, with documented giving in Massachusetts, Virginia, Indiana, District of Columbia, Florida, Maryland, New Hampshire, Ohio, Pennsylvania, South Carolina, Tennessee, and Vermont, among others. Primary funding regions include Massachusetts and Virginia.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Assets & Income (2024):
- Total assets: $297.9 million
- Total revenues: $46.6 million
- Total expenses: $14.2 million
- Annual giving: $13.9 million
Assets & Income (2023):
- Total assets: $265.6 million
- Annual giving: $14.66 million
- Investment income and dividends: $11.1 million
The foundation distributes grants at a rate that exceeds its annual investment income, demonstrating a commitment to substantial charitable impact during its operational period.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $297,921,784 | $265,560,132 | $270,838,306 |
| Revenue | $46,562,396 | $9,426,539 | $3,266,739 |
| Expenses | $14,200,742 | $14,704,713 | $12,711,660 |
| Qualifying Distributions | $13,911,212 | $14,660,388 | $12,708,830 |
| Net Investment Income | $16,122,866 | $11,075,553 | $3,263,909 |
| Distributable Amount | $13,939,671 | $13,322,306 | $13,731,619 |
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
250 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
- Peter K. Lambertus – President
- Ann W. Lambertus – Director
- Edward J. Bartlett Jr. – Treasurer and Clerk
All key personnel serve in uncompensated roles, demonstrating a commitment to philanthropic work.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| PETER K LAMBERTUS | PRESIDENT | 1 | — |
| EDWARD J BARTLETT JR | TREASURER & CLERK | 1 | — |
| ANN W LAMBERTUS | DIRECTOR | 1 | — |
Contact Information
Address: 155 Federal Street, Suite 402, Boston, MA 02110 (also listed as 1 Central Street, Unit 37, Norwood, MA 02062)
Phone & Email: Not publicly available
Website: Not publicly available
Subject Areas
Focus areas based on grantmaking activity
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Similar funders by location and focus area
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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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