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Flatley Foundation is a private trust based in BRAINTREE, MA. The foundation received its IRS ruling in 2000. It holds total assets of $691M. Annual income is reported at $826M. Total assets have grown from $501.8M in 2011 to $691M in 2024. The foundation is governed by 3 officers and trustees. Tax records are available from 2020 to 2024. Grantmaking is concentrated in Massachusetts. According to available records, Flatley Foundation has made 764 grants totaling $154.4M, with a median grant of $100K. Annual giving has grown from $23.9M in 2021 to $32.8M in 2024. Grantmaking activity was highest in 2022 with $61.2M distributed across 310 grants. Individual grants have ranged from $1K to $5M, with an average award of $202K. The foundation has supported 204 unique organizations. The foundation primarily supports organizations in Massachusetts, Connecticut, California, which account for 88% of all grants. Grantmaking reaches organizations across 16 states. Contributions to this foundation are tax-deductible.
The Flatley Foundation is a deeply private, invitation-only family foundation rooted in the legacy of the late Thomas J. Flatley, an Irish-American commercial real estate developer who built one of New England's largest property companies before his death in 2008. Today the foundation is stewarded by three family trustees — John J. Flatley, Daniel T. Flatley, and Mary Margaret Darling — all serving without compensation. There is no staff, no website, no published RFP calendar, and no open application portal. Every dollar of the roughly $32.8 million distributed annually flows through existing relationships, many spanning a decade or more.
The foundation's giving philosophy is trust-based and relationship-driven. Of its top 50 grantees, 19 organizations have received four or more grants. The Archdiocese of Boston has received 11 separate awards totaling $10.655 million; My Brother's Keeper has received 14 grants totaling $2.2 million. This pattern of recurring, deepening commitment signals that the Flatley family treats philanthropy as a long-term partnership with vetted organizations, not a transactional grant cycle.
For new entrants, the realistic path is a warm introduction through a mutual trustee, board member, or senior leader at a current grantee. The foundation's phone number — (781) 849-5100, Braintree, MA — can be used for initial inquiry, but cold outreach rarely succeeds without prior relationship context. The most viable organizational profiles for consideration share three characteristics: demonstrated roots in Boston's Catholic community or close ties to the Archdiocese; a mission serving health, education, human services, or disability populations in Massachusetts (or New Hampshire); and a track record of financial stability that allows for unrestricted general operating support.
Organizations that align with the Flatley family's known personal priorities — Irish-American heritage, Catholic social teaching, medical research tied to cystic fibrosis or neurological disease, and support for veterans and first responders — have the highest probability of eventual cultivation. First-time grant seekers should plan for a multi-year relationship-building horizon rather than expecting a single inquiry to produce results.
The Flatley Foundation's grantmaking is highly concentrated and consistent. In FY2024 the foundation made an estimated 148-159 grants totaling $32.8 million, placing the average award at approximately $202,148. The median grant is $100,000, and the range spans from roughly $5,500 to $5,000,000, with the largest single FY2024 grant being $5 million to Boston College for its Archives Building.
By program area (based on analysis of the top 50 grantees representing $154.4 million in cumulative historical giving across 764 tracked grants):
Trend: Annual grants paid rose from $11.7M (FY2015) through $25.5M (FY2019) to a peak of $36.6M (FY2023) before moderating to $32.8M (FY2024). Total assets stood at $690.9M at fiscal year-end 2024, generating $64.4M in net investment income, providing a strong foundation for sustained or increased grantmaking.
The Flatley Foundation sits in a peer cluster of similarly sized private foundations by asset base, all in the $679M-$700M range. However, it differs sharply from most peers in its geographic concentration, religious focus, and family governance structure.
| Foundation | Assets | Annual Giving | Primary Focus | Geography | Application |
|---|---|---|---|---|---|
| Flatley Foundation | $691M | $32.8M | Catholic, Health, Education | MA / NH | Invited only |
| Goldman Sachs Foundation | $690M | Not disclosed | Social mobility, workforce dev | National / Global | Invited |
| Sherman Fairchild Foundation | $689M | ~$30-40M est. | Arts, Science, Education | National | Invited |
| Perenchio Foundation | $696M | Not disclosed | Arts, Human Services | CA | Invited |
| Dan L. Duncan Family Foundation | $700M | Not disclosed | Health, Education | TX | Invited |
| Puffin Bay Foundation | $679M | Not disclosed | Arts, Civil Liberties | ME / National | Invited |
The Flatley Foundation is distinct within this asset peer group in several ways. First, its giving is almost exclusively concentrated in a single metropolitan area — roughly 85% of grants by count go to Massachusetts organizations, with New Hampshire as the only other significant state. By contrast, foundations like Goldman Sachs and Sherman Fairchild operate with national or international mandates. Second, the foundation's Catholic identity is unusually explicit for a private foundation of this scale: few $690M+ endowments show the same concentration of grantmaking in Catholic educational and religious institutions. Third, with zero paid staff and three family trustees, the Flatley Foundation operates with a governance simplicity that peers like the Goldman Sachs Foundation — which has professional program staff — do not share. This reinforces why relationship access is the only viable path: there are no program officers to cultivate.
No formal press releases or website announcements have been issued by the Flatley Foundation in 2025 or 2026, consistent with the foundation's longstanding policy of minimal public communications. The foundation does not maintain a public website.
The most recent significant documented activity comes from FY2024 990-PF data: a $5 million grant to Boston College for its Archives Building, the largest single grant recorded in at least the past two fiscal years. Also in FY2024, Aceing Autism — which provides autism spectrum tennis programming — received a $1.5 million unrestricted grant, and Jett Foundation (serving individuals with Duchenne muscular dystrophy) received a $1 million unrestricted grant.
The most recent publicly announced major gift was the February 26, 2020 establishment of the Flatley Discovery Endowed Scholarship Fund at Wentworth Institute of Technology: a $1.75 million gift by Daniel T. Flatley — a former Wentworth trustee — honoring the late Thomas J. Flatley, who attended Wentworth. Wentworth matched the gift dollar-for-dollar, creating a $3.5 million endowed fund for biomedical and biological engineering students with financial need from Boston.
No trustee transitions or leadership changes have been publicly reported. John J. Flatley, Daniel T. Flatley, and Mary Margaret Darling have served as the three trustees continuously across all available 990-PF filings from FY2012 through FY2024, indicating exceptional governance stability.
Because the Flatley Foundation funds only pre-selected organizations, the advice below addresses how to enter the foundation's orbit rather than how to fill out a form.
Establish a Catholic institutional anchor. The single most reliable pathway is affiliation with Boston's Catholic institutional ecosystem. Organizations with board members who are active in the Archdiocese of Boston, Boston College alumni networks, or Catholic Charities circles have a natural introduction pathway. The foundation's giving to the Archdiocese ($10.655M), Boston College ($6.7M+), and multiple Catholic schools suggests that requests channeled through bishops, deans, or school presidents in these institutions carry weight.
Identify a mutual connection to the Flatley family. Daniel T. Flatley was a Wentworth trustee, and the family's roots in commercial real estate, the Greater Boston Irish-American community, and Cape Cod (Cape Cod Healthcare Foundation is a grantee) suggest specific networks. Explore whether your board includes anyone with overlapping professional or civic ties to the Flatley family.
Align your mission to proven priority areas. Organizations addressing neurological disease research, autism and developmental disability services, maternal health, veteran support, Catholic K-12 education, or international humanitarian aid are most likely to resonate. The foundation's language of 'Unrestricted' giving reflects trust in the grantee — come prepared with a clear operational track record rather than a specific project pitch.
Lead with New Hampshire presence if applicable. NH received 21 of 764 tracked grants — more than any other non-MA state — suggesting personal Flatley family connections. NH-based nonprofits with health or human services missions should note this disproportionate attention.
Make initial contact through the listed phone number. (781) 849-5100 is the foundation's only public contact. A brief, warm phone inquiry referencing a mutual connection is the appropriate first step. Do not send unsolicited proposal documents; they are unlikely to be reviewed. Ask whether the foundation is accepting introductions in your program area and how the family prefers to learn about new organizations.
Timing: With no published grant cycle, the foundation appears to make grants on a rolling basis throughout the year. There is no advantage to targeting a specific month. Focus on relationship cultivation year-round rather than timing a proposal.
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Smallest Grant
$6K
Median Grant
$100K
Average Grant
$161K
Largest Grant
$1.1M
Based on 148 grants from the most recent 990-PF filing.
The flatley discovery lab is a branch of the flatley foundation, created to carry out charitable activities of the flatley foundation. The flatley discovery lab conducts in-house research for the purpose of discovering a cure for cystic fibrosis.
Expenses: $9K
The Flatley Foundation's grantmaking is highly concentrated and consistent. In FY2024 the foundation made an estimated 148-159 grants totaling $32.8 million, placing the average award at approximately $202,148. The median grant is $100,000, and the range spans from roughly $5,500 to $5,000,000, with the largest single FY2024 grant being $5 million to Boston College for its Archives Building. By program area (based on analysis of the top 50 grantees representing $154.4 million in cumulative histo.
Flatley Foundation has distributed a total of $154.4M across 764 grants. The median grant size is $100K, with an average of $202K. Individual grants have ranged from $1K to $5M.
The Flatley Foundation is a deeply private, invitation-only family foundation rooted in the legacy of the late Thomas J. Flatley, an Irish-American commercial real estate developer who built one of New England's largest property companies before his death in 2008. Today the foundation is stewarded by three family trustees — John J. Flatley, Daniel T. Flatley, and Mary Margaret Darling — all serving without compensation. There is no staff, no website, no published RFP calendar, and no open applic.
Flatley Foundation is headquartered in BRAINTREE, MA. While based in MA, the foundation distributes grants to organizations across 16 states.
| Name | Title | Compensation | Benefits | Total |
|---|---|---|---|---|
| JOHN J FLATLEY | TRUSTEE | $0 | $0 | N/A |
| MARY MARGARET DARLING | TRUSTEE | $0 | $0 | N/A |
| DANIEL T FLATLEY | TRUSTEE | $0 | $0 | N/A |
Total Giving
$32.8M
Total Assets
$691M
Fair Market Value
$843.5M
Net Worth
$691M
Grants Paid
$32.8M
Contributions
N/A
Net Investment Income
$64.4M
Distribution Amount
$39.8M
Total: $455.5M
Total Grants
764
Total Giving
$154.4M
Average Grant
$202K
Median Grant
$100K
Unique Recipients
204
Most Common Grant
$100K
of 2024 grantees were first-time recipients
| Recipient | Location | Amount | Year |
|---|---|---|---|
| MY BROTHER'S KEEPERCHRISTMAS PROGRAMS | EASTON, MA | $200K | 2024 |
| BOSTON COLLEGEARCHIVES BUILDING | CHESTNUT HILL, MA | $5M | 2024 |
| ACEING AUTISM INCUNRESTRICTED | LOS ANGELES, CA | $1.5M | 2024 |
| JETT FOUNDATION INCUNRESTRICTED | PLYMOUTH, MA | $1M | 2024 |
| CARE USACHILDHOOD MOZAMBIQUE | ATLANTA, GA | $1M | 2024 |
| BRIGHAM & WOMENS HOSPITALBRIDGES TO MOMS PROGRAM | BOSTON, MA | $1M | 2024 |
| AMERICARES INCU.S. & EL SALVADOR CLINICS | STAMFORD, CT | $1M | 2024 |
| SAINT BENEDICT ACADEMYSCHOLARSHIP SUPPORT | NATICK, MA | $1M | 2024 |
| BOSTON MEDICAL CENTERAUTISM PROGRAM | BOSTON, MA | $500K | 2024 |
| TEEN CHALLENGE NEW ENGLAND INCPROJECT PROPOSAL | BROCKTON, MA | $500K | 2024 |
| HOMES FOR OUR TROOPS INCUNRESTRICTED | TAUNTON, MA | $500K | 2024 |
| CATHOLIC CHARITIES BOSTONSUNSET CAMP | SO BOSTON, MA | $450K | 2024 |
| FUND FOR CATHOLIC SCHOOLS INCSCHOLARSHIP SUPPORT | BOSTON, MA | $400K | 2024 |
| COMPASSIONATE CARE ALSUNRESTRICTED | WEST FALMOUTH, MA | $385K | 2024 |
| HEALTH EQUITY INTERNATIONALUNRESTRICTED | NEWTON, MA | $350K | 2024 |
| IRISH AMERICAN PARTNERSHIP INCUNRESTRICTED | BOSTON, MA | $300K | 2024 |
| FELLOWSHIP OF CATHOLIC UNIVERSITY STUDENTSUNRESTRICTED | DENVER, CO | $300K | 2024 |
| PROVISION MINISTRY INCUNRESTRICTED | WESTBORO, MA | $300K | 2024 |
| CHILDREN'S ONCOLOGY SERVICES OF MA INCTHE BOSTON HOUSE | BROOKLINE, MA | $300K | 2024 |
| PAN MASSACHUSETTS CHALLENGEUNRESTRICTED | NEEDHAM, MA | $298K | 2024 |
| CHESTERTON ACADEMYSCHOLARSHIP SUPPORT | HOPKINS, MN | $250K | 2024 |
| LABOURE COLLEGESCHOLARSHIP SUPPORT | MILTON, MA | $250K | 2024 |
| ARC OF THE SOUTH SHOREUNRESTRICTED | HINGHAM, MA | $250K | 2024 |
| COPS FOR KIDS WITH CANCER INCUNRESTRICTED | BRAINTREE, MA | $250K | 2024 |
| CATHOLIC UNIVERSITY OF AMERICAENDOWED CHAIR OF HISPANIC MINISTRY | WASHINGTON, DC | $250K | 2024 |
| CARITAS COMMUNITIESUNRESTRICTED | BRAINTREE, MA | $250K | 2024 |
| MARINE CORPS SCHOLARSHIP FOUNDATIONSCHOLARSHIP SUPPORT | ALEXANDRIA, VA | $250K | 2024 |
| SISTERS OF SAINT JOSEPHUNRESTRICTED | BRIGHTON, MA | $250K | 2024 |
| CATHEDRAL HIGH SCHOOLSCHOLARSHIP SUPPORT | BOSTON, MA | $250K | 2024 |
| SAINT MARY'S SCHOOLMATHEMATICS LAB | LYNN, MA | $250K | 2024 |
| LITTLE BLUE HEROES FOUNDATIONUNRESTRICTED | BAILIS DOWNS | $212K | 2024 |
| BETHANY HEALTH CARE CENTERUNRESTRICTED | FRAMINGHAM, MA | $200K | 2024 |
| IRISH PASTORAL CENTREUNRESTRICTED | DORCHESTER, MA | $200K | 2024 |
| HOSPITALITY HOMES INCUNRESTRICTED | BOSTON, MA | $200K | 2024 |
| BETH ISRAEL DEACONESS HOSPITALSCHOLARSHIP SUPPORT | NEEDHAM, MA | $200K | 2024 |
| CATHOLIC SCHOOLS FOUNDATIONINNER CITY SCHOLARSHIP FUND | BOSTON, MA | $200K | 2024 |
| SOUTH SHORE HABITAT FOR HUMANITYUNRESTRICTED | WEYMOUTH, MA | $200K | 2024 |
| SAINT ROCK HAITI FOUNDATIONUNRESTRICTED | MILTON, MA | $200K | 2024 |
| MASSACHUSETTS GENERAL HOSPITALPEDIATRIC PULMONARY MEDICINE | BOSTON, MA | $200K | 2024 |
| HYANNIS PUBLIC LIBRARYTEACHING KITCHEN | HYANNIS, MA | $150K | 2024 |
| HOOPS AND HOMEWORK INCUNRESTRICTED | FRAMINGHAM, MA | $150K | 2024 |
| BROCKTON HOSPITAL SCHOOL OF NURSINGSCHOLARSHIP SUPPORT | BROCKTON, MA | $150K | 2024 |
| BREATH STRONG CFUNRESTRICTED | ATLANTA, GA | $150K | 2024 |
| BOSTON HIGASHI SCHOOL INCUNRESTRICTED | RANDOLPH, MA | $150K | 2024 |
| REGIS COLLEGESCHOLARSHIP SUPPORT | WESTON, MA | $150K | 2024 |