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The Windover Foundation at a glance

· Private foundation

The Windover Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$993k
Granted FY2025still arriving
33
Grants FY2025still arriving
5
States reached
$120k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$1.4MHealth$810kPhilanthropy$790kArts & Culture$679kEnvironment$660kHousing & Shelter$590kReligion$561kHuman Services$366kOther$0
02FY2025 · 33 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k4 grants · $15k
  • $10k–50k18 grants · $388k
  • $50k–250k11 grants · $695k
$25,000
Median grant
5
States reached
$17M
Total assets
Largest grants
RecipientAmount
CHILDREN'S HOSPITAL$120,000
KENNEBEC LAND TRUST$100,000
BOSTON NEIGHBORHOOD SUPPORT$75,000
STUDENT CONSERVATION ASSN$50,000
GREAT POND MOUNTAIN CONSERVATION TRUST$50,000
THE BROOKLINE CENTER FOR COMMUNITY MENTAL HEALTH$50,000
RIVERSIDE COMMUNITY CARE$50,000
DENOVO CENTER FOR JUSTICE AND HEALING$50,000
SAMARITANS INC$50,000
THE NORTHERN LIGHTHOUSE$50,000
GOOD SHERPARD FOOD BANK$50,000
ARTSTREAM$30,000
Y2Y NETWORK$30,000
SAINT ANDRE HOME$30,000
BEANTOWN BABY DIAPER BANK$30,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY18–25, $296k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 43% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 9%LOAVES & FISHES FOOD PANTRY: $25k → 11%THE NORTHERN LIGHTHOUSE: $50k → 15%THE NORTHERN LIGHTHOUSE: $50k → 15%NORTHERN LIGHTHOUSE: $755 → 15%CAMBRIDGE COMMUNITY CENTER: $50k → 8%CATHOLIC CHARITIES OF MAINE: $25k → 7%CAMBRIDGE COMMUNITY CENTER: $50k → 8%CAMBRIDGE COMMUNITY CENTER: $15k → 8%BEANTOWN BABY DIAPER BANK: $30k → 8%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
NH
NY
MA
PA
MD
DC
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

63%of every dollar goes to organizations it has funded before.
$3.9M · 32 repeat orgs$2.3M to everyone else

Grantees it renews have grown median revenue +36% since the first grant, against +22% for those funded once.

32 repeat relationships: 20 still active in FY2025, 12 since wound down; 11 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

32
46

Total granted

$3.9M
$2.0M

Median revenue growth · since first grant

+36%
+22%

Still filing today

84%
43%

New vs renewed · share of each year

In FY2025, 79% of grant dollars renewed an existing relationship; $223k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureHealthEnvironmentHuman ServicesHousing & ShelterEducationOther
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.

Backed again, and grew

  • BN
    Boston Neighborhood Support Inc
    3× · 2023–2025 · $400k · revenue +111% · 54% of their budget
  • CH
    Children's Hospital Corporation
    4× · 2020–2025 · $280k · revenue +76%
  • BC
    BROOKLINE COMMUNITY MENTAL HEALTH CENTER INC DBA THE BROOKLINE CENTER
    3× · 2023–2025 · $150k · revenue +61%

Funded once

  • SA
    ST ANDREWS
    one grant, 2019 · $200k
  • SA
    ST ANDREW'S EPISCOPAL SCHOOL INCgraduated
    one grant, 2018 · $200k · revenue +68%
  • SA
    ST ANDREWS EPISCOPAL CHURCH
    one grant, 2017 · $200k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Midcoast Conservancy

The mission of Midcoast Conservancy is to protect vital lands and waters on a scale that matters and to inspire wonder and action on behalf of all species and the Earth.

Environment
2
Maine Appalachian Trail Land Trust

To preserve and protect land surrounding the appalachian trail in maine for public benefit.

Environment
3
Maine Historical Society

Maine Historical Society, founded in 1822, is a private non-profit whose mission is to preserve and share Maine's story. Based in Portland, we work closely with communities and partners throughout the state, and serve a statewide and…

Arts & Culture
4
Mount Desert Land and Garden Preserve

The mission of the mount desert land & garden preserve is to conserve and share the beauty of our historic lands and gardens.

—
5
Kennebunk Land Trust

Kennebunk Land Trust's mission is to permanently conserve and steward land to benefit natural and human communities.

Environment
6
Massachusetts Housing Investment Corporation

Mhic's mission is to be an innovative private financier of afforable housing and community development throughout new england, providing financing that would not otherwise be available, and extending the impact of that financing to ensure…

Housing & Shelter
7
Maine Behavioral Healthcare

Maine Behavioral Healthcare provides a seamless and compassionate continuum of care through a community of providers collaborating to promote recovery and the overall mental and physical well-being of those we are privileged to serve.

—
8
Maine Preservation

Maine preservation promotes and preserves historic places, buildings, downtowns and neighborhoods, stenghtening the cultural and economic vitality of maine communities.

Arts & Culture
9
Maine Council on Aging

A broad multi-disciplinary network that works to ensure we can all live healthy, engaged, and secure lives as we age in our homes and communities. With the voices of people with lived experience, we work on policy issues related to…

Unclassified
10
Massachusetts Affordable Housing Alliance Inc

Maha breaks down barriers facing first-time and first-generation home buyers and owners through education, counseling, advocacy, and grassroots organizing.

Housing & Shelter
11
Islesboro Islands Trust

The mission of Islesboro Islands Trust is to enhance the quality of residents' lives through the preservation of open space, educate all residents as to the value of the island's natural ecosystems, and act as an environmental advocate on…

Philanthropy
12
Central Maine Healthcare Corporation

To provide exceptional healthcare services in a safe and trustful environment through the expertise, committment, and compassion of our family of caregivers.

Health
How this is measured
The grantee most central to the portfolio’s shape is Blue Hill Heritage Trust; the most unlike its peers is Hewnoaks Artist Colony. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

57 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 57 of the 92 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

2
Load-bearing (≥25% of a budget)
15
Early backer (in before they grew)
56/57
Grantees still filing
39/57
Grew since first funded

Where the money sits, by cause and then by grantee

MAINE COAST WALDORF SCHOOL: $800,000 · OtherMAINE COAST WALDORF SCHOOLGREAT POND MOUNTAIN CONSERVATION TR: $300,000 · OtherGREAT POND MOUNTAIN CONSERVATION TRST ANDREWS: $200,000 · OtherST ANDREW'S EPISCOPAL SCHOOL INC: $200,000 · OtherST ANDREWS EPISCOPAL CHURCH: $200,000 · OtherBROOKLINE COMMUNITY MENTAL HEALTH CENTER INC DBA THE BROOKLINE CENTER: $150,000 · OtherTOWN OF WINTHROP: $150,000 · OtherTOWN OF WINTHROP MAINE: $150,000 · Other+50 more: $1,823,360 · Other+50 moreChildren's Hospital Corporation: $280,000 · HealthChildren's H…DE NOVO CENTER FOR JUSTICE AND HEALING: $150,000 · HealthDE NOVO CENT…SAMARITANS INC: $150,000 · HealthSAMARITANS I…RIVERSIDE COMMUNITY CARE INC: $150,000 · HealthRIVERSIDE CO…LifeFlight Foundation: $40,000 · Health+2 more: $30,000 · HealthDONOR ADVISED CHARITABLE GIVING INC: $790,000 · PhilanthropyDONOR ADVISE…Boston Neighborhood Support Inc: $400,000 · Housing & ShelterTEDFORD HOUSING: $50,000 · Housing & ShelterMIDCOAST MAINE HOMELESS COALITION: $25,000 · Housing & ShelterBREAD OF LIFE MINISTRIES INC: $25,000 · Housing & ShelterBetsy Ann Ross House of Hope dba Sisters in Arms Center: $25,000 · Housing & ShelterODYSSEY OPERA OF BOSTON INC: $100,000 · Arts & CultureSTRAWBERY BANKE MUSEUM: $60,000 · Arts & CultureARTSTREAM INC: $50,000 · Arts & CultureREADFIELD UNION MEETING HOUSE CO: $45,000 · Arts & CultureColumbia County Historical Society Inc: $20,000 · Arts & CultureMAINE CENTER FOR PUBLIC INTEREST REPORTING: $20,000 · Arts & CulturePENOBSCOT MARINE MUSEUM: $14,100 · Arts & Culture+2 more: $20,000 · Arts & CultureCAMBRIDGE COMMUNITY CENTER INC: $115,000 · Human ServicesTHE NORTHERN LIGHTHOUSE INC: $100,755 · Human ServicesBEANTOWN BABY DIAPER BANK: $30,000 · Human ServicesCatholic Charities Maine: $25,000 · Human ServicesLOAVES & FISHES FOOD PANTRY INC: $25,000 · Human Services+1 more: $10,000 · Human ServicesTHE KENNEBEC LAND TRUST: $125,000 · EnvironmentYORK LAND TRUST: $75,000 · EnvironmentBLUE HILL HERITAGE TRUST: $27,500 · EnvironmentGREATER LOVELL LAND TRUST INC: $25,000 · EnvironmentSCENIC AMERICA: $12,500 · EnvironmentSANFORD-SPRINGVALE MOUSAM WAY LAND TRUST: $12,000 · Environment
Other$3,973,360Health$800,000Philanthropy$790,000Housing & Shelter$525,000Arts & Culture$329,100Human Services$305,755Environment$277,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetDONOR ADVISED CHARITABLE GIVING INC: $790,000 over 2y, 0.0% of budgetBoston Neighborhood Support Inc: $400,000 over 3y, 54% of budgetGREAT POND MOUNTAIN CONSERVATION TR: $300,000 over 3y, 14% of budgetChildren's Hospital Corporation: $280,000 over 4y, 0.0% of budgetST ANDREW'S EPISCOPAL SCHOOL INC: $200,000 over 1y, 0.8% of budgetBROOKLINE COMMUNITY MENTAL HEALTH CENTER INC DBA THE BROOKLINE CENTER: $150,000 over 3y, 0.4% of budgetDE NOVO CENTER FOR JUSTICE AND HEALING: $150,000 over 3y, 1.6% of budgetSAMARITANS INC: $150,000 over 3y, 0.6% of budgetRIVERSIDE COMMUNITY CARE INC: $150,000 over 3y, 0.0% of budgetTHE KENNEBEC LAND TRUST: $125,000 over 2y, 5.9% of budgetCAMBRIDGE COMMUNITY CENTER INC: $115,000 over 3y, 3.4% of budgetAUGUSTA FOOD BANK: $110,000 over 3y, 11% of budgetTHE NORTHERN LIGHTHOUSE INC: $100,755 over 3y, 1.1% of budgetAUGUSTA TEEN CENTER OF THE BOYS & GIRLS CLUB: $100,000 over 1y, 18% of budgetODYSSEY OPERA OF BOSTON INC: $100,000 over 2y, 2.7% of budgetGood Shepherd Food Bank: $100,000 over 2y, 0.1% of budgetMaine Appalachian Trail Club: $95,000 over 2y, 13% of budgetKENNEBEC HISTORICAL SOCIETY: $78,000 over 5y, 21% of budgetSTRAWBERY BANKE MUSEUM: $60,000 over 3y, 0.7% of budgetY2Y NETWORK INC: $55,000 over 2y, 2.2% of budgetARTSTREAM INC: $50,000 over 2y, 3.2% of budgetTEDFORD HOUSING: $50,000 over 1y, 2.5% of budgetTHE STUDENT CONSERVATION ASSOCIATION INC: $50,000 over 1y, 0.1% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $49,900 over 2y, 0.0% of budgetREADFIELD UNION MEETING HOUSE CO: $45,000 over 2y, 16% of budgetPINE TREE SOCIETY INC: $45,000 over 2y, 0.4% of budgetLifeFlight Foundation: $40,000 over 2y, 0.7% of budgetTHE CHARLES RIVER SCHOOL INC: $35,000 over 1y, 0.4% of budgetBEANTOWN BABY DIAPER BANK: $30,000 over 1y, 15% of budgetTRAVIS MILLS FOUNDATION: $30,000 over 1y, 0.5% of budgetBLUE HILL HERITAGE TRUST: $27,500 over 2y, 2.3% of budgetMidcoast Recovery Coalition: $25,000 over 2y, 8.0% of budgetGREATER LOVELL LAND TRUST INC: $25,000 over 1y, 2.0% of budgetMIDCOAST MAINE HOMELESS COALITION: $25,000 over 1y, 16% of budgetBREAD OF LIFE MINISTRIES INC: $25,000 over 2y, 0.8% of budgetCatholic Charities Maine: $25,000 over 1y, 0.1% of budgetLOAVES & FISHES FOOD PANTRY INC: $25,000 over 1y, 1.1% of budgetColumbia County Historical Society Inc: $20,000 over 1y, 4.4% of budgetJUNIOR ACHIEVEMENT OF MAINE INC: $20,000 over 2y, 1.9% of budgetMAINE CENTER FOR PUBLIC INTEREST REPORTING: $20,000 over 1y, 1.9% of budgetMAINE JUSTICE FOUNDATION: $18,000 over 1y, 0.7% of budgetOLD YORK HISTORICAL SOCIETY: $16,500 over 1y, 1.1% of budgetWALKER INC: $15,000 over 2y, 0.0% of budgetPENOBSCOT MARINE MUSEUM: $14,100 over 1y, 1.5% of budgetSCENIC AMERICA: $12,500 over 1y, 1.3% of budgetSANFORD-SPRINGVALE MOUSAM WAY LAND TRUST: $12,000 over 1y, 26% of budgetGULF OF MAINE RESEARCH INSTITUTE: $10,000 over 1y, 0.1% of budgetTHE PROGRESS CENTER INC: $10,000 over 1y, 0.1% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

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.

Maine Community Found…Stephen & Tabitha Kin…Kennebec Savings Bank…Simmons Foundation - …Onion FoundationBangor Savings Bank F…Agnes M Lindsay TrustDavis Family Foundati…Elmina B Sewall Found…Franklin Savings Bank…Maine Health Access F…Fisher Charitable Fou…
Maine Community Foundation IncME52.2× affinity28 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Stephen & Tabitha King Foundation Inc · Kennebec Savings Bank Foundation · Simmons Foundation - PerkinsThompson · Onion Foundation · Bangor Savings Bank Foundation · Agnes M Lindsay Trust · Davis Family Foundation · Elmina B Sewall Foundation · Franklin Savings Bank Community Development Foundation · Maine Health Access Foundation Inc · Fisher Charitable 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.

How much its grantees rely on government

Each dot is one organization The Windover Foundation funds: left to right is the share of its income from government, bottom to top the share from The Windover Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%4%15%34%60%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 26%
  • Riverside Community Care Inc: 58% of income from government
  • Volunteers of America of Massachusetts Inc: 46% of income from government
  • Samaritans Inc: 31% of income from government
  • Walker Inc: 26% of income from government
  • Children's Hospital Corporation: 10% of income from government
  • De Novo Center for Justice and Healing: 9% of income from government
  • Cambridge Community Center Inc: 8% of income from government
no gov moneyreceives it· size = income
6get no government money at all
12report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Windover Foundation?

Find your warmest path to The Windover Foundation 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.

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 92 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

Play a game based on Windover’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home