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Florida · Private foundation

Mahaffey Family Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$80k
Granted FY2024(still arriving)
6
Grants FY2024
6
Organizations funded FY2023
0%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$15,000
Largest grant, FY2024
$20,000
Organizations funded a year
6 to 12
FY2017 to FY2023
States reached, FY2024
2
Total assets, FY2024
$546k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 0% of the organizations Mahaffey Family Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2023, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’18’19’20’21’22’23
RenewedFirst-time

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

’18’19’20’21’22’23
Human ServicesEnvironmentHealthReligionOther
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
FY2024still arriving5$60k40%
FY20236$60k0%
FY20227$70k29%
FY202112$105k25%
FY202012$80k0%
FY201912$90k17%
FY201811$90k18%
FY201712$80kn/a
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Religion$200kEducation$122kHuman Services$104kHealth$77kPhilanthropy$60kYouth Development$36kArts & Culture$25kHousing & Shelter$20kOther$0

Top grantees

Largest recipients by total granted, FY2017 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Sisters of Providence of Saint Mary-Of-The-Woods$77,5008n/a
Saint Mary-Of-The-Woods College$60,00030%
Suncoast Voices for Children Foundation Inc$47,50053%
St Petersburg Free Clinic Inc$42,00080%
Frameworks of Tampa Bay Inc$35,50071%
Clothes to Kids Inc$30,00040%
University of South Florida Foundation Inc$25,00050%
Great Explorations Inc$20,00040%
Lutheran Church of the Cross Day School Inc$20,0001n/a
Starting Right Now$20,00030%
Show all 15 grantees
All grantees of Mahaffey Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Sisters of Providence of Saint Mary-Of-The-Woods$77,5008n/a
Saint Mary-Of-The-Woods College$60,00030%
Suncoast Voices for Children Foundation Inc$47,50053%
St Petersburg Free Clinic Inc$42,00080%
Frameworks of Tampa Bay Inc$35,50071%
Clothes to Kids Inc$30,00040%
University of South Florida Foundation Inc$25,00050%
Great Explorations Inc$20,00040%
Lutheran Church of the Cross Day School Inc$20,0001n/a
Starting Right Now$20,00030%
Tampa Bay Watch Inc$17,50030%
LifePath Hospice Inc$11,50020%
St Thomas Episcopal Church$7,5001n/a
Van Gogh's Palette Inc$5,00010%
A Door of Hope Inc$5,00010%

Plus 8 recipients with no EIN on record ($211k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Mahaffey Family Foundation supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetSaint Mary-Of-The-Woods College: $60,000 over 3y, 0.1% of budgetSuncoast Voices for Children Foundation Inc: $47,500 over 5y, 2.9% of budgetSt Petersburg Free Clinic Inc: $42,000 over 8y, 0.0% of budgetFrameworks of Tampa Bay Inc: $35,500 over 7y, 0.6% of budgetClothes to Kids Inc: $30,000 over 4y, 0.4% of budgetUniversity of South Florida Foundation Inc: $25,000 over 5y, 0.0% of budgetGreat Explorations Inc: $20,000 over 4y, 0.2% of budgetStarting Right Now: $20,000 over 3y, 0.2% of budgetTampa Bay Watch Inc: $17,500 over 3y, 0.4% of budgetLifePath Hospice Inc: $11,500 over 2y, 0.0% of budgetVan Gogh's Palette Inc: $5,000 over 1y, 0.3% of budgetA Door of Hope Inc: $5,000 over 1y, 0.3% 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 12.

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.

Community Foundation of Tampa Bay IncFL19.4× affinity7 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation of Tampa Bay Inc · Pinellas Community Foundation · Rays Baseball Foundation Inc · Vinik Family Foundation · Debartolo Family Foundation Inc · Duke Energy Foundation · Dwayne Hawkins Family Foundation Inc D/B/A Crown Automotive Charities · The Parallel Foundation Inc · Alvah H & Wyline P Chapman Foundation · Natl Christian Charitable Fdn Inc · Raymond James Charitable Endowment Fund · Jpmorgan Chase Foundation

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 Mahaffey Family Foundation with peer funders

About Mahaffey Family Foundation

How much does Mahaffey Family Foundation give?
Mahaffey Family Foundation reported 6 grants totaling $80,000 in its FY2024 IRS filing. It funded between 6 and 12 organizations a year over FY2017 to FY2023.
What does Mahaffey Family Foundation fund?
By grant dollars over FY2017 to FY2024, its largest causes are Religion (29%), Education (18%), Human Services (15%).
Who are Mahaffey Family Foundation's largest grantees?
By total granted over FY2017 to FY2024: Sisters of Providence of Saint Mary-Of-The-Woods ($78k), Saint Mary-Of-The-Woods College ($60k), Suncoast Voices for Children Foundation Inc ($48k).
Does Mahaffey Family Foundation fund new organizations?
In FY2023, 0% of the organizations it funded were first-time grantees.
Does Mahaffey Family Foundation 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 Mahaffey Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Community Foundation of Tampa Bay Inc, Pinellas Community Foundation, Rays Baseball Foundation Inc.
Where is Mahaffey Family Foundation based?
Mahaffey Family Foundation is based in FL.

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 24 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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