The Flatley Foundation
The Flatley Foundation is a private foundation based in Braintree, Massachusetts. Its 2024 filing describes the Flatley Discovery Lab, a branch of the foundation, as conducting in-house research to discover a cure for cystic fibrosis.
The Flatley Foundation at a glance
In short: The Flatley Foundation gave $32.8M across 159 grants in 2024 (avg $206K), mostly in Massachusetts. 13% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $32,765,264
- -10.5% vs 2023
- Grants made (2024)
- 159
- +8.2% vs 2023
- Average grant
- $206,071
- -17.3% vs 2023
- Median grant
- $100,000
- Total assets
- $690,996,869
- +4.9% vs 2023
- New grantees (estimate)
- 13% first-time grantees (16 of 121, 2024)
- Primary geography
- Massachusetts (78% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to The Flatley Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 45 Braintree Hill Office Pk 300, Braintree, MA 02184-8754
Phone: (781) 849-5100
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Flatley Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Boston College ($5.4M across 4 grants). Together the top 10 received $15.3M.
Organizations only. It also paid 21 individual scholarships ($2,100,000), which are not listed by name.
Grant Size Distribution
752 grants across all recorded years
The most common grant size was in the $100–250K range: 351 grants of 752 (47%).
Geographic Focus
Where this funder awards grants
In 2024, 78% of grant dollars went to recipients in Massachusetts, 8% to Connecticut, 5% to California, 4% to Georgia, and 1% to the District of Columbia.
Grant Distribution by State
Share of 2024 grant dollars across all 159 itemized grants.
States
Cities
Is The Flatley Foundation open to new grantees?
13%
first-time grantees, 2024
In 2024, 16 of 121 grantees (13%) were first-time recipients. First grants averaged $189K; repeat grants $283K. How we count
Medians: $100K first-time, $100K repeat.
- 80% of 2024 grantees were also funded in 2023. Method
- Giving grew 37% from 2021 to 2024. Method
- In 2024 it paid out 84% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $18.5M (2020) to $36.6M (2023). In 2024 it made 159 grants totaling $32.8M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Boston College Chestnut Hill, MA | Archives Building | $5,000,000 |
| Aceing Autism Inc Los Angeles, CA | Unrestricted | $1,500,000 |
| Americares Inc Stamford, CT | U.S. & El Salvador Clinics | $1,000,000 |
| Americares Inc Stamford, CT | Hurricane Helene | $1,000,000 |
| Brigham & Womens Hospital Boston, MA | Bridges to Moms Program | $1,000,000 |
| Care USA Atlanta, GA | Childhood Mozambique | $1,000,000 |
| Jett Foundation Inc Plymouth, MA | Unrestricted | $1,000,000 |
| Saint Benedict Academy Natick, MA | Scholarship Support | $1,000,000 |
| Americares Inc Stamford, CT | U.S. Health Community Clinics | $500,000 |
| Boston Medical Center Boston, MA | Autism Program | $500,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $690,996,869 | $69,555,080 | $37,479,981 | $32,765,264 | 159 | $33,258,945 | $64,362,494 | $39,787,693 |
| 2023 | $658,916,412 | $18,148,673 | $39,964,185 | $36,618,882 | 147 | $37,076,321 | $13,899,744 | $35,081,089 |
| 2022 | $680,733,810 | $-15,458,032 | $34,302,537 | $30,594,000 | 155 | $31,071,884 | $11,210,809 | $36,570,392 |
| 2021 | $730,489,671 | $65,780,367 | $29,395,135 | $23,868,800 | 148 | $24,423,099 | $58,659,407 | $41,166,748 |
| 2020 | $694,103,795 | $126,955,750 | $25,740,445 | $18,457,333 | 143 | — | $11,211,924 | $35,442,434 |
Under IRS private-foundation payout rules, The Flatley Foundation reported a distributable amount of $39.8M for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s filing describes the Flatley Discovery Lab as carrying out charitable activities through in-house cystic fibrosis research. Its grants also support a range of organizations. For example, Aceing Autism says its mission is to make tennis available to children with autism and use the sport to support their health, fitness, coordination, motor development, and social skills. The Jett Foundation says it supports people and families affected by Duchenne muscular dystrophy through programming, education, and ongoing support.
Other grantees describe missions that include providing accessible health services (Boston Medical Center), assisting individuals and families with ALS (Compassionate Care ALS), preventing homelessness through housing and support (Caritas Communities), and assisting families and medical facilities caring for children with cancer (Cops for Kids with Cancer).
Grantmaking
In 2024, the foundation awarded 159 grants totaling $32,765,264. Grant amounts ranged from $1,000 to $5 million, with a median of $100,000. Notable grants included $5 million to Boston College for an archives building; $1.5 million to Aceing Autism; and $1 million each to Americares for U.S. and El Salvador clinics, Americares for Hurricane Helene, Brigham & Women’s Hospital for its Bridges to Moms program, CARE USA for childhood Mozambique, Jett Foundation, and Saint Benedict Academy for scholarship support.
Other 2024 grants included $500,000 to Boston Medical Center for an autism program, $500,000 to Homes for Our Troops, and $500,000 to Teen Challenge New England for a project proposal.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists John J. Flatley, Daniel T. Flatley, and Mary Margaret Darling as trustees.
The Flatley Foundation's 2024 filing lists 3 officers; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Daniel T. Flatley
Trustee
On filings since 2020
20 hrs/week
No compensation reported
John J. Flatley
Trustee
On filings since 2020
20 hrs/week
No compensation reported
Mary Margaret Darling
Trustee
On filings since 2020
20 hrs/week
No compensation reported
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.
Frequently asked questions about The Flatley Foundation
How much does The Flatley Foundation give each year?
The Flatley Foundation gave $32.8M across 159 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $36.6M across 147 grants.
What is The Flatley Foundation's typical grant size?
The Flatley Foundation's median grant in 2024 was $100,000, and its average grant was $206,071, across 159 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from The Flatley Foundation that year got $189K on average.
Where does The Flatley Foundation give grants?
The Flatley Foundation gives mostly in Massachusetts: 78% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was Connecticut (8%). The most frequent recipient cities were Boston, MA (23 grants), Easton, MA (7 grants), Chestnut Hill, MA (5 grants) and Milton, MA (5 grants).
Does The Flatley Foundation give general operating support?
Yes: 41% of The Flatley Foundation's 2024 grants with a stated purpose (65 of 159) were for general or operating support, per its 2024 IRS Form 990-PF. Recurring purposes include "Scholarship Support" (58 grants).
Who are The Flatley Foundation's largest grantees?
The Flatley Foundation's largest 2024 grantees include Boston College ($5,425,000 across 4 grants), Americares Inc ($2,500,000 across 3 grants) and Aceing Autism Inc ($1,500,000), according to its 2024 IRS Form 990-PF. It also paid 21 individual scholarships ($2,100,000), which are not listed by name. Together they received 29% of its itemized 2024 grant dollars.
How large is The Flatley Foundation?
The Flatley Foundation reported $691.0M in total assets on its 2024 IRS Form 990-PF. It paid out $33.3M in qualifying distributions that year, against a required minimum of $39.8M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does The Flatley Foundation fund?
The foundation’s filing describes the Flatley Discovery Lab as carrying out charitable activities through in-house cystic fibrosis research. Its grants also support a range of organizations. See mission & focus areas ↑
How do I apply for a grant from The Flatley Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Flatley Foundation's EIN?
The Flatley Foundation's EIN (Employer Identification Number) is 04-2763837. IRS Form 990 filing data is available on this page for 2020–2024.
Does The Flatley Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in The Flatley Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). The Flatley Foundation funder profile. GrantGraph. Retrieved October 10, 2026, from https://grantable.co/funders/the-flatley-foundation-morg_90b778f078324f9fa0ea8259fcf14dca
BibTeX
@misc{grantable_042763837_2026,
author = {{Grantable}},
title = {{The Flatley Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-flatley-foundation-morg_90b778f078324f9fa0ea8259fcf14dca},
note = {Accessed 2026-10-10. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from The Flatley Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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