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Maryland · Private foundation

The Thomas F & Clementine L Mullan Foundation Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$397k
Granted FY2025(still arriving)
46
Grants FY2025
43
Organizations funded FY2024
19%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$3,000
Largest grant, FY2025
$60,000
Organizations funded a year
37 to 52
FY2019 to FY2024
States reached, FY2025
8
Total assets, FY2025
$7.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 19% of the organizations The Thomas F & Clementine L Mullan Foundation Inc funded were first-time grantees, receiving 17% of its grant dollars.

New vs renewed · share of each year

In FY2024, 83% of grant dollars renewed an existing relationship; $71k went to new ones.

50%100%’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’20’21’22’23’24
EducationArts & CultureEnvironmentPublic BenefitAnimalsYouth DevelopmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving46$397k26%
FY202443$420k19%
FY202349$367k29%
FY202246$363k22%
FY202139$351k31%
FY202037$395k43%
FY201952$269kn/a
96% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Education$1.0MHealth$518kRecreation & Sports$339kReligion$161kArts & Culture$145kHuman Services$116kYouth Development$93kPhilanthropy$46kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
IL
NY
MA
IA
PA
CT
VA
MD
DE
NC
SC
DC
LA
GA
FL

Top grantees

Largest recipients by total granted, FY2019 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The National Sporting Library and Museum$291,00072%
Johns Hopkins University$240,00050%
Saint Ignatius Loyola Academy$234,5007n/a
Cristo Rey Jesuit High School$152,5007n/a
Indian River Hospital Foundation Inc$135,0007n/a
The Boys' Latin School of Maryland Inc$79,09040%
Gilchrist Hospice Care Inc$71,50040%
GB Charities Inc$68,00075%
Protestant Episcopal Cathedral Foundation of the D of C$57,5004n/a
McDonogh School Incorporated$50,00030%
Show all 70 grantees
All grantees of The Thomas F & Clementine L Mullan Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
The National Sporting Library and Museum$291,00072%
Johns Hopkins University$240,00050%
Saint Ignatius Loyola Academy$234,5007n/a
Cristo Rey Jesuit High School$152,5007n/a
Indian River Hospital Foundation Inc$135,0007n/a
The Boys' Latin School of Maryland Inc$79,09040%
Gilchrist Hospice Care Inc$71,50040%
GB Charities Inc$68,00075%
Protestant Episcopal Cathedral Foundation of the D of C$57,5004n/a
McDonogh School Incorporated$50,00030%
The Windsor Charitable Foundation$46,10053%
The Johns Hopkins Hospital$40,50030%
Quail Valley Charities Inc$35,50061%
Salisbury University Foundation Inc$30,00030%
Little Sisters of Jesus and Mary Inc$30,00031%
Rubicon Productions Inc$25,00021%
William Wendt Center for Loss and Healing$22,50020%
B&O Railroad Museum Inc$19,50060%
Calvert School Incorporated$16,00030%
Baltimore Educational Scholarship Trust$15,00060%
Ballet Vero Beach Inc$12,00030%
Maryland Horse Foundation Inc$10,00011%
The Valleys Planning Council Inc$10,00012%
The Boys and Girls Clubs of Metropolitan Baltimore$10,00010%
Caesar Rodney Institute$10,00012%
Kent Association of Riding Therapy Inc$10,0001n/a
St Michaels Fire Department Inc$9,00050%
Land Preservation Trust Inc$8,00060%
Rett Syndrome Research Trust Inc$7,00050%
Kennedy Krieger Institute Inc$7,0006n/a
Maryland Historical Society Inc$6,00030%
Ocean Research & Conservation Association Inc$6,00060%
Gbmc Foundation Inc$5,0001n/a
First Fruits Farm Inc$5,00010%
Saint James School$5,00010%
Christopher Coffland Memorial Fund Inc$5,00010%
Ronald McDonald House Charities of Maryland Inc$3,4001n/a
Scholarship Foundation of Indian River County Inc$3,00020%
The Education Foundation of Indian River County Inc$3,00020%
The Zachary T Paff Foundation Inc$3,00025%
James Mosher Associates Inc$2,8201n/a
Cardinal Crease Club Foundation Inc$2,40013%
Young Men's Christian Association of Central Maryland Inc$2,00020%
Baltimore Choral Arts Society Inc$2,00020%
The Family Tree Inc$1,50020%
Irvine Natural Science Center Inc$1,50010%
Washington Winter Show Inc$1,15011%
Arts for Learning Maryland Inc$1,00010%
The Highlands School Inc$1,00010%
Citizens Association of Georgetown$1,0001n/a
Maryvale Preparatory School$1,0001n/a
Wreaths Across America$90050%
The Manor Conservancy Inc$70020%
Hereford Volunteer Ambulance Assoc Inc Dba Monkton Vol Emergency Services$70070%
Next Generation Veterans Inc$5001n/a
The Herget Foundation$50010%
Blakehurst Residents Scholarship Foundation Inc$50010%
Metro-Maryland Youth for Christ Inc$50010%
Institute of Notre Dame$2001n/a
Brookgreen Gardens$20010%
Indian River Land Trust Inc$20010%
Chesapeake Bay Foundation Inc$10010%
Indian River County Volunteer Ambulance Squad Inc$1001n/a
Mercy Ridge Inc$10010%
Gettysburg Foundation$10010%
The Shriners' Hospital for Children$10010%
Alzheimer's Disease & Related Disorders Association Inc$10010%
Vero Beach Volunteer Fire Department Inc$1001n/a
The United Way of Central Maryland Inc$10010%
Waterfront Partnership of Baltimore Inc$1001n/a

What it could do for these grantees

Plus 54 recipients with no EIN on record ($741k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Thomas F & Clementine L Mullan Foundation Inc supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe National Sporting Library and Museum: $291,000 over 7y, 1.9% of budgetJohns Hopkins University: $240,000 over 5y, 0.0% of budgetThe Boys' Latin School of Maryland Inc: $79,090 over 4y, 0.1% of budgetGilchrist Hospice Care Inc: $71,500 over 4y, 0.0% of budgetGB Charities Inc: $68,000 over 7y, 5.3% of budgetMcDonogh School Incorporated: $50,000 over 3y, 0.0% of budgetThe Windsor Charitable Foundation: $46,100 over 5y, 2.8% of budgetThe Johns Hopkins Hospital: $40,500 over 3y, 0.0% of budgetQuail Valley Charities Inc: $35,500 over 6y, 0.7% of budgetSalisbury University Foundation Inc: $30,000 over 3y, 0.1% of budgetLittle Sisters of Jesus and Mary Inc: $30,000 over 3y, 1.1% of budgetRubicon Productions Inc: $25,000 over 2y, 1.3% of budgetWilliam Wendt Center for Loss and Healing: $22,500 over 2y, 0.3% of budgetB&O Railroad Museum Inc: $19,500 over 6y, 0.1% of budgetCalvert School Incorporated: $16,000 over 3y, 0.0% of budgetBaltimore Educational Scholarship Trust: $15,000 over 6y, 0.3% of budgetBallet Vero Beach Inc: $12,000 over 3y, 0.3% of budgetMaryland Horse Foundation Inc: $10,000 over 1y, 0.7% of budgetThe Valleys Planning Council Inc: $10,000 over 1y, 2.0% of budgetThe Boys and Girls Clubs of Metropolitan Baltimore: $10,000 over 1y, 0.0% of budgetCaesar Rodney Institute: $10,000 over 1y, 2.1% of budgetSt Michaels Fire Department Inc: $9,000 over 5y, 0.3% of budgetLand Preservation Trust Inc: $8,000 over 6y, 0.1% of budgetRett Syndrome Research Trust Inc: $7,000 over 5y, 0.0% of budgetMaryland Historical Society Inc: $6,000 over 3y, 0.1% of budgetOcean Research & Conservation Association Inc: $6,000 over 6y, 0.1% of budgetFirst Fruits Farm Inc: $5,000 over 1y, 0.2% of budgetSaint James School: $5,000 over 1y, 0.0% of budgetChristopher Coffland Memorial Fund Inc: $5,000 over 1y, 0.4% of budgetScholarship Foundation of Indian River County Inc: $3,000 over 2y, 0.1% of budgetThe Education Foundation of Indian River County Inc: $3,000 over 2y, 0.3% of budgetThe Zachary T Paff Foundation Inc: $3,000 over 2y, 5.0% of budgetCardinal Crease Club Foundation Inc: $2,400 over 1y, 2.5% of budgetYoung Men's Christian Association of Central Maryland Inc: $2,000 over 2y, 0.0% of budgetBaltimore Choral Arts Society Inc: $2,000 over 2y, 0.1% of budgetThe Family Tree Inc: $1,500 over 2y, 0.0% of budgetIrvine Natural Science Center Inc: $1,500 over 1y, 0.1% of budgetWashington Winter Show Inc: $1,150 over 1y, 0.9% of budgetArts for Learning Maryland Inc: $1,000 over 1y, 0.0% of budgetThe Highlands School Inc: $1,000 over 1y, 0.0% of budgetWreaths Across America: $900 over 5y, 0.0% of budgetThe Manor Conservancy Inc: $700 over 2y, 0.5% of budgetHereford Volunteer Ambulance Assoc Inc Dba Monkton Vol Emergency Services: $700 over 7y, 0.1% of budgetThe Herget Foundation: $500 over 1y, 0.0% of budgetBlakehurst Residents Scholarship Foundation Inc: $500 over 1y, 0.2% of budgetMetro-Maryland Youth for Christ Inc: $500 over 1y, 0.0% of budgetBrookgreen Gardens: $200 over 1y, 0.0% of budgetIndian River Land Trust Inc: $200 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 54.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Baltimore Community Foundation IncMD46.1× affinity22 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Baltimore Community Foundation Inc · T Rowe Price Program for Charitable Giving Inc · Brown Advisory Charitable Foundation Inc · The United Way of Central Maryland Inc · The Marion I & Henry J Knott Foundation Inc · France-Merrick Foundation Inc · The Bunting Family Foundation · The Thomas B and Elizabeth M Sheridan Foundation Inc · The Charles T Bauer Charitable Foundation · Mary Jean and Oliver Travers Foundation Inc · Campbell Foundation Inc · The Kahlert Foundation Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare The Thomas F & Clementine L Mullan Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Thomas F & Clementine L Mullan Foundation Inc?

Find your warmest path to The Thomas F & Clementine L Mullan Foundation Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About The Thomas F & Clementine L Mullan Foundation Inc

How much does The Thomas F & Clementine L Mullan Foundation Inc give?
The Thomas F & Clementine L Mullan Foundation Inc reported 46 grants totaling $397,082 in its FY2025 IRS filing. It funded between 37 and 52 organizations a year over FY2019 to FY2024.
What does The Thomas F & Clementine L Mullan Foundation Inc fund?
By grant dollars over FY2019 to FY2025, its largest causes are Education (40%), Health (20%), Recreation & Sports (13%).
Who are The Thomas F & Clementine L Mullan Foundation Inc's largest grantees?
By total granted over FY2019 to FY2025: The National Sporting Library and Museum ($291k), Johns Hopkins University ($240k), Saint Ignatius Loyola Academy ($235k).
Does The Thomas F & Clementine L Mullan Foundation Inc fund new organizations?
In FY2024, 19% of the organizations it funded were first-time grantees.
Does The Thomas F & Clementine L Mullan Foundation Inc accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The Thomas F & Clementine L Mullan Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Baltimore Community Foundation Inc, T Rowe Price Program for Charitable Giving Inc, Brown Advisory Charitable Foundation Inc.
Where is The Thomas F & Clementine L Mullan Foundation Inc based?
The Thomas F & Clementine L Mullan Foundation Inc is based in MD.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 125 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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