The Mary K O'Neill Foundation makes targeted, local gifts in the Baltimore/Towson area, concentrating on pediatric medical research and neighborhood-level direct services and special-needs education. A majority of dollars have gone repeatedly to a handful of organizations—notably Kennedy Krieger for osteogenesis imperfecta research—and to community service providers expanding direct-service capacity. Grants are modest-to-medium in size and appear focused on specific projects (research, a campus/direct services expansion, and a school capital campaign).
Mary K O'neill Foundation Inc repeatedly backs a small set of local priorities rather than spreading gifts broadly. The clearest throughline is disease-specific medical research: Kennedy Krieger Foundation received three grants for osteogenesis imperfecta research, including $30,000 in 2023, $25,000 in 2024, and $20,000 in 2025. Alongside that research support, the foundation has also funded community-facing service infrastructure, with Inner County Outreach receiving grants for a direct services campus and later for the Paradise Project. This pattern suggests a funder that favors targeted, project-based support for organizations already working in its orbit. The foundation’s recent grants also show attention to education and family support. Jemicy School received both operations funding and a capital campaign grant, while Harford Family House, the Boys & Girls Club of Harford County, and the Salvation Army of Havre De Grace all appear in the recent grant list with program-specific support. Smaller gifts to St Jude Children's Research Hosp, Tunnel to Towers Foundation, and Waterfowl Festival round out a portfolio that stays close to Maryland communities while still funding select national charities.
In pediatric medical research, Mary K O'neill Foundation Inc gave $20,000 in 2025 to Kennedy Krieger Foundation for osteogenesis imperfecta research, continuing earlier grants for the same purpose. That repeated support makes rare bone disorder research a central thread in its giving. The foundation also funds direct-service and campus development work. It gave $25,000 in 2024 and $30,000 in 2023 to Inner County Outreach for a direct services campus, then followed with a $10,000 grant in 2025 for the Paradise Project. Education-related support shows up through Jemicy School, which received $15,000 in 2025 for a capital campaign and $10,000 in 2024 for operations. Family and youth services appear through Harford Family House and the Boys & Girls Club of Harford County, including repeated summer camp program support for the latter.
The foundation’s typical grant size sits at $5,000 at the 25th percentile, $10,000 at the median, and $10,000 at the 75th percentile, so most gifts cluster in a narrow band. A smaller number of larger awards push annual giving higher, including $30,000 and $25,000 grants. The pattern is recurring rather than one-off: several recipients appear across multiple years, including Kennedy Krieger Foundation, Inner County Outreach, Harford Family House, Boys & Girls Club of Harford County, The Legacy School, St Jude Children's Research Hosp, and Waterfowl Festival. It is a private foundation and also funds individuals, while making no program-related investments.
$100K
$1.3M
$146K
$120K
Most grants fall between $5K and $10K, with a median of $10K.
25th Percentile
$5K
Median
$10K
75th Percentile
$10K
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Concentrated local giving with repeat, project-specific grants to a small number of organizations rather than many one-off recipients; mid-size gifts (several five-figure grants) focused on research, capital improvements, and direct-service expansion.
Notable grantees: Kennedy Krieger Foundation, Inner County Outreach, Jemicy School
Giving is highly local and concentrated in Maryland. 88% of grants went to recipients in MD, and the top recipient cities include Baltimore, Aberdeen, Owings Mills, Sykesville, Easton, Cockeysville, and Havre De Grace. Outside Maryland, the foundation made smaller grants to Memphis, Tennessee; Staten Island, New York; Boone, Iowa; and one recipient in Tennessee. All 27 recent grants went to U.S. organizations.
Its recent grants emphasize osteogenesis imperfecta research, direct-service campus development, special-needs education, and family-serving programs. Kennedy Krieger Foundation, Inner County Outreach, and Jemicy School anchor those patterns, while other gifts support summer camp programming, scholarship work, disaster relief, and holiday aid.
Yes. Several recipients appear in multiple years, including Kennedy Krieger Foundation, Inner County Outreach, Harford Family House, Boys & Girls Club of Harford County, The Legacy School, St Jude Children's Research Hosp, and Waterfowl Festival. Kennedy Krieger alone received grants in 2023, 2024, and 2025 for the same research focus.
The 25th percentile is $5,000, the median is $10,000, and the 75th percentile is $10,000. That indicates most grants are in the $5,000 to $10,000 range, with occasional larger awards above that level.
It gives primarily in Maryland: 88% of grants went to recipients in MD. Recent Maryland recipient cities include Baltimore, Aberdeen, Owings Mills, Sykesville, Easton, Cockeysville, and Havre De Grace.
Its geographic scope is local, but a few grants went outside Maryland to U.S. organizations such as St Jude Children's Research Hosp in Memphis, Tunnel to Towers Foundation in Staten Island, American Red Cross in Boone, Iowa, and one Tennessee recipient. The overall pattern still remains concentrated in Maryland.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| KENNEDY KRIEGER FOUNDATION | BALTIMORE, MD | $20,000 | 2025 | OSTEOGENESIS IMPERFECTA RESEARCH |
| JEMICY SCHOOL | OWINGS MILLS, MD | $15,000 | 2025 | CAPITAL CAMPAIGN |
| HARFORD FAMILY HOUSE | ABERDEEN, MD | $10,000 | 2025 | OPERATIONS |
| BOYS & GIRLS CLUB OF HARFORD COUNTY | ABERDEEN, MD | $10,000 | 2025 | SUMMER CAMP PROGRAM |
| INNER COUNTY OUTREACH | ABERDEEN, MD | $10,000 | 2025 | PARADISE PROJECT |
| THE LEGACY SCHOOL | SYKESVILLE, MD | $10,000 | 2025 | OPERATIONS |
| AMERICAN RED CROSS | BOONE, IA | $10,000 | 2025 | HURRICANE HELENE RELIEF |
| TUNNEL TO TOWERS FOUNDATION | STATEN ISLAND, NY | $5,000 | 2025 | OPERATIONS |
| WATERFOWL FESTIVAL | EASTON, MD | $5,000 | 2025 | OPERATIONS |
| ST JUDE CHILDREN'S RESEARCH HOSP | MEMPHIS, TN | $5,000 | 2025 | OPERATIONS |
| KENNEDY KRIEGER FOUNDATION | BALTIMORE, MD | $25,000 | 2024 | OSTEOGENESIS IMPERFECTA RESEARCH |
| INNER COUNTY OUTREACH | ABERDEEN, MD | $25,000 | 2024 | DIRECT SERVICES CAMPUS |
| BOYS & GIRLS CLUB OF HARFORD COUNTY | ABERDEEN, MD | $10,000 | 2024 | SUMMER CAMP PROGRAM |
| THE LEGACY SCHOOL | SYKESVILLE, MD | $10,000 | 2024 | OPERATIONS |
| JEMICY SCHOOL | OWINGS MILLS, MD | $10,000 | 2024 | OPERATIONS |
| HARFORD FAMILY HOUSE | ABERDEEN, MD | $10,000 | 2024 | OPERATIONS |
| WATERFOWL FESTIVAL | EASTON, MD | $5,000 | 2024 | OPERATIONS |
| ST JUDE CHILDREN'S RESEARCH HOSP | MEMPHIS, TN | $5,000 | 2024 | OPERATIONS |
| INNER COUNTY OUTREACH | ABERDEEN, MD | $30,000 | 2023 | DIRECT SERVICES CAMPUS |
| KENNEDY KRIEGER FOUNDATION | BALTIMORE, MD | $30,000 | 2023 | OSTEOGENESIS IMPERFECTA RESEARCH |
| HARFORD FAMILY HOUSE | ABERDEEN, MD | $10,000 | 2023 | OPERATIONS |
| THE LEGACY SCHOOL | SYKESVILLE, MD | $10,000 | 2023 | OPERATIONS |
| BOYS & GIRLS CLUB OF HARFORD COUNTY | ABERDEEN, MD | $10,000 | 2023 | SUMMER CAMP PROGRAM |
| MASONIC CHARITIES OF MARYLAND INC | COCKEYSVILLE, MD | $5,000 | 2023 | SCHOLARSHIP PROGRAM |
| WATERFOWL FESTIVAL | EASTON, MD | $5,000 | 2023 | OPERATIONS |
| ST JUDE CHILDREN'S RESEARCH HOSP | MEMPHIS, TN | $5,000 | 2023 | OPERATIONS |
| SALVATION ARMY OF HAVRE DE GRACE | HAVRE DE GRACE, MD | $2,500 | 2023 | ANGEL TREE PROGRAM |
HARFORD FAMILY HOUSE
$10,000OPERATIONS
INNER COUNTY OUTREACH
$10,000PARADISE PROJECT
THE LEGACY SCHOOL
OPERATIONS
AMERICAN RED CROSS
$10,000HURRICANE HELENE RELIEF
TUNNEL TO TOWERS FOUNDATION
$5,000OPERATIONS
WATERFOWL FESTIVAL
$5,000OPERATIONS
INNER COUNTY OUTREACH
$25,000DIRECT SERVICES CAMPUS
THE LEGACY SCHOOL
$10,000OPERATIONS
HARFORD FAMILY HOUSE
$10,000OPERATIONS
WATERFOWL FESTIVAL
$5,000OPERATIONS
INNER COUNTY OUTREACH
$30,000DIRECT SERVICES CAMPUS
HARFORD FAMILY HOUSE
$10,000OPERATIONS
THE LEGACY SCHOOL
$10,000OPERATIONS
MASONIC CHARITIES OF MARYLAND INC
$5,000SCHOLARSHIP PROGRAM
WATERFOWL FESTIVAL
$5,000OPERATIONS
SALVATION ARMY OF HAVRE DE GRACE
$2,500ANGEL TREE PROGRAM