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· Private foundation

May Kay Houck Foundation

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.

$129k
Granted FY2025still arriving
20
Grants FY2025still arriving
4
States reached
$15k
Largest
01What it funds
0195% classified

What it funded, over time

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

Environment$301kHuman Services$145kHealth$144kAnimals$84kHousing & Shelter$66kReligion$48kFood & Nutrition$47kEducation$40kOther$0
02FY2025 · 20 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k13 grants · $47k
  • $10k–50k7 grants · $82k
$7,000
Median grant
4
States reached
$2.2M
Total assets
Largest grants
RecipientAmount
GENESEE VALLEY CONSERVANCY$15,000
Individual grant recipient$14,000
FINGER LAKES LAND TRUST$13,000
COBBLESTONE FOUNDATIONS$10,000
REACH OF HAYWOOD COUNTY INC$10,000
LIGHTHOUSE VISION LOSS EDUCATION CT$10,000
CANANDAIGUA LAKE WATERSHED ASSOC$10,000
FOODLINK$8,000
HAYWOOD HABITAT FOR HUMANITY$7,000
Individual grant recipient$7,000
SOUTHEASTERN GUIDE DOGS INC$5,000
MOHAWK HUDSON LAND CONSERVANCY$5,000
WILD WINGS INC$5,000
MOTE MARINE LABORATORY$4,000
VAIL VETERANS FOUNDATION$2,500
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 (FY17–25, $172k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 53% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 10%GUIDING EYES FOR THE BLIND: $3k → 9%AIM HIGH CHILDRENS SERVICES: $1k → 20%SOUTHEASTERN GUIDE DOGS: $6k → 10%COBBLESTONE FOUNDATION: $10k → 10%AIM HIGH CHILDRENS SERVICES: $1k → 20%SOUTHEASTERN GUIDE DOGS INC: $5k → 10%REACH OF HAYWOOD COUNTY INC: $10k → 12%COBBLESTONE FOUNDATIONS: $10k → 10%AIM HIGH CHILDRENS SERVICES: $1k → 20%SOUTHEASTERN GUIDE DOGS INC: $5k → 10%REACH OF HAYWOOD COUNTY INC: $10k → 12%COBBLESTONE FOUNDATIONS: $6k → 10%AIM HIGH CHILDRENS SERVICES: $1k → 20%SOUTHEASTERN GUIDE DOGS: $5k → 10%REACH OF HAYWOOD COUNTY INC: $10k → 12%COBBLESTONE FOUNDATION: $5k → 10%AIM HIGH CHILDRENS SERVICES: $500 → 20%SOUTHEASTERN GUIDE DOGS: $5k → 10%REACH OF HAYWOOD COUNTY INC: $10k → 12%SOUTHEASTERN GUIDE DOGS INC: $5k → 10%REACH OF HAYWOOD COUNTY INC: $10k → 12%SOUTHEASTERN GUIDE DOGS INC: $5k → 10%SOUTHEASTERN GUIDE DOGS INC: $5k → 10%REACH OF HAYWOOD COUNTY INC: $9k → 12%SOUTHEASTERN GUIDE DOGS: $5k → 10%REACH OF HAYWOOD COUNTY INC: $7k → 12%REACH OF HAYWOOD COUNTY INC: $6k → 12%REACH OF HAYWOOD COUNTY INC: $4k → 12%YMCA OF GREATER ROCHESTER: $7k → 14%YMCA OF GREATER ROCHESTER: $5k → 14%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

NH
NY
MA
OH
PA
CO
NC
DC
TX
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.

96%of every dollar goes to organizations it has funded before.
$1.0M · 32 repeat orgs$46k to everyone else

Grantees it renews have grown median revenue +90% since the first grant, against +22% for those funded once.

32 repeat relationships: 18 still active in FY2025, 14 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

32
14

Total granted

$1.0M
$34k

Median revenue growth · since first grant

+90%
+22%

Still filing today

81%
43%

New vs renewed · share of each year

In FY2025, 91% of grant dollars renewed an existing relationship; $12k 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
EnvironmentHuman ServicesHealthFood & NutritionAnimalsInternationalOther
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

  • ML
    MANA-SOTA LIGHTHOUSE FOR THE BLIND INC
    9× · 2017–2025 · $101k · revenue +42%
  • TF
    The Finger Lakes Land Trust Inc
    9× · 2017–2025 · $101k · revenue +172%
  • GV
    Genesee Valley Conservancy Inc
    9× · 2017–2025 · $84k · revenue ×32

Funded once

  • AA
    AIM AT MELANOMA
    one grant, 2018 · $5k · revenue +5%
  • TR
    THE RESCUE INN INCgraduated
    one grant, 2019 · $5k · revenue +88%
  • BA
    BOYS AND GIRLS CLUB SARASOTA CO
    one grant, 2017 · $4k
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
The Central New York Land Trust Inc

The central new york land trust seeks to preserve and protect natural areas in order to provide our communities clean water, clean air, wildlife habitat, and a chance to connect with the land.

Environment
2
Genesee Land Trust Inc

Genesee Land Trust preserves and protects natural lands and waterways that enhance the quality of life in the Greater Rochester region - providing wildlife habitat, locally grown food, and connections to nature.

Environment
3
Lake George Land Conservancy Inc

Dedicated to permanently preserve the natural, scenic and recreational resources of the Lake George Basin.

Environment
4
Woodstock Land Conservancy Inc

Acquire land and easements to preserve and enhance the open lands, forests, water resources, scenic areas and historical sights of the Woodstock, NY area. Steward protected lands and offer educational programs and events regarding nature…

Environment
5
Adirondack North Country Association Inc

Support regional economic development in new york's 14 northernmost counties

Food & Nutrition
6
Land Conservancy of Ridgefield Inc

The Land Conservancy of Ridgefield, Inc. ("the Land Conservancy"), founded in 1967, preserves and protects, for the general benefit of the public, Ridgefield, Connecticut's natural resources including land and water resources, the plant…

Environment
7
Westchester Land Trust Inc

The primary mission of the Westchester Land Trust is to conserve, maintain and enhance the natural environment and resources of Westchester County and eastern Putnam County. The Trust acquires interests in land exhibiting important natural…

Environment
8
The Vermont River Conservancy Inc

Protect land along rivers, lakes and wetlands of vt; protect public access, wildlife habitat, scenic natural beauty, and ecological integrity.

Human Services
9
Lakes Region Conservation Trust

The mission of the Organization is the conservation of the natural resources of the Lakes Region of New Hampshire, the preservation of wildlife habitat, the stewardship of lands that define the character of the region and its quality of…

Environment
10
Land Conservancy of West Michigan

Our mission is conserving West Michigans ecologically critical land. We protect land by creating public nature preserves, providing support to communities and local governments in creating natural areas, and helping private landowners…

Environment
11
Adirondack League Club

To manage the preservation and conservation of an approximate 50,000 acre preserve.

Recreation & Sports
12
Adirondack Center for Loon Conservation

The mission of the adirondack center for loon conservation is to inspire passion for and promote the conservation of adirondack loons as an environmental sentinel.

Animals
How this is measured
The grantee most central to the portfolio’s shape is Adirondack Foundation; the most unlike its peers is Mote Marine Laboratory Inc. 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

34 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. 34 of the 49 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.

0
Load-bearing (≥25% of a budget)
13
Early backer (in before they grew)
34/34
Grantees still filing
32/34
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $96,000 · OtherIndividual grant recipientHABITAT FOR HUMANITY INTERNATIONAL HAYWO: $66,000 · OtherHABITAT FOR HUMANITY INTERNATIONAL HAYWOCanandaigua Lake Watershed Association: $56,000 · OtherCanandaigua Lake Watershed AssociationOPEN DOOR MISSION INC: $48,000 · OtherOPEN DOOR MISSION INCFRIENDS OF MENDON PUBLIC LIBRARY: $34,000 · OtherFRIENDS OF MENDON PUBLIC LIBRARY+18 more: $85,000 · Other+18 moreThe Finger Lakes Land Trust Inc: $101,000 · EnvironmentThe Finger Lakes Land Tru…Genesee Valley Conservancy Inc: $84,000 · EnvironmentGenesee Valley Conservanc…MOHAWK HUDSON LAND CONSERVANCY: $47,000 · EnvironmentMOHAWK HUDSON LAND CONSER…+4 more: $13,000 · EnvironmentREACH OF HAYWOOD COUNTY INC: $75,500 · Human ServicesREACH OF HAYWOOD COU…Southeastern Guide Dogs Inc: $46,000 · Human ServicesSoutheastern Guide D…COBBLESTONE FOUNDATION INCORPORATED: $31,000 · Human ServicesCOBBLESTONE FOUNDATI…VAIL VETERANS FOUNDATION INC: $21,500 · Human ServicesVAIL VETERANS FOUNDA…YMCA OF GREATER ROCHESTER (4368): $12,000 · Human ServicesYMCA OF GREATER ROCH…+2 more: $7,500 · Human ServicesMANA-SOTA LIGHTHOUSE FOR THE BLIND INC: $101,000 · HealthMANA-SOTA LIGH…CANCER CONNECTION INC: $22,000 · HealthCANCER CONNECT…ALZHEIMER'S DISEASE RESEARCH FOUNDATION: $10,000 · HealthALZHEIMER'S DI…AIM AT MELANOMA: $5,000 · Health+1 more: $1,000 · HealthFOODLINK INC: $43,000 · Food & NutritionTHE COMMUNITY KITCHEN INC: $3,000 · Food & Nutrition+1 more: $1,000 · Food & NutritionSARGES ANIMAL RESCUE FOUNDATION INC: $27,500 · AnimalsWILD WINGS INC: $5,000 · AnimalsTHE RESCUE INN INC: $5,000 · AnimalsWORLD CENTRAL KITCHEN INC: $33,000 · International
Other$385,000Environment$245,000Human Services$193,500Health$139,000Food & Nutrition$47,000Animals$37,500International$33,000

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 budgetMANA-SOTA LIGHTHOUSE FOR THE BLIND INC: $101,000 over 9y, 0.9% of budgetThe Finger Lakes Land Trust Inc: $101,000 over 9y, 0.3% of budgetGenesee Valley Conservancy Inc: $84,000 over 9y, 1.0% of budgetREACH OF HAYWOOD COUNTY INC: $75,500 over 9y, 1.4% of budgetHABITAT FOR HUMANITY INTERNATIONAL HAYWO: $66,000 over 8y, 1.2% of budgetCanandaigua Lake Watershed Association: $56,000 over 6y, 4.3% of budgetMOHAWK HUDSON LAND CONSERVANCY: $47,000 over 9y, 1.2% of budgetSoutheastern Guide Dogs Inc: $46,000 over 9y, 0.1% of budgetFOODLINK INC: $43,000 over 7y, 0.0% of budgetWORLD CENTRAL KITCHEN INC: $33,000 over 4y, 0.0% of budgetCOBBLESTONE FOUNDATION INCORPORATED: $31,000 over 4y, 5.5% of budgetSARGES ANIMAL RESCUE FOUNDATION INC: $27,500 over 6y, 1.8% of budgetCANCER CONNECTION INC: $22,000 over 6y, 0.6% of budgetVAIL VETERANS FOUNDATION INC: $21,500 over 9y, 0.2% of budgetYMCA OF GREATER ROCHESTER (4368): $12,000 over 2y, 0.0% of budgetThe Friends of the Mendon Public Library Inc: $11,000 over 3y, 25% of budgetMOTE MARINE LABORATORY INC: $11,000 over 3y, 0.0% of budgetALZHEIMER'S DISEASE RESEARCH FOUNDATION: $10,000 over 2y, 0.0% of budgetMOUNTAIN PROJECTS INC: $6,000 over 2y, 0.0% of budgetTHE ADIRONDACK COUNCIL INC: $6,000 over 8y, 0.1% of budgetWILD WINGS INC: $5,000 over 1y, 0.8% of budgetAIM AT MELANOMA: $5,000 over 1y, 0.2% of budgetROCHESTER CROSS COUNTRY SKIFOUNDATION: $5,000 over 3y, 6.2% of budgetAIM HIGH CHILDRENS SERVICES: $4,500 over 5y, 0.0% of budgetTHE LAKE PLACID ASSOCIATION FOR MUSIC DRAMA AND ART INC: $4,000 over 6y, 0.1% of budgetADIRONDACK MOUNTAIN CLUB INC: $3,000 over 5y, 0.0% of budgetTHE COMMUNITY KITCHEN INC: $3,000 over 1y, 0.1% of budgetGUIDING EYES FOR THE BLIND INC: $3,000 over 1y, 0.0% of budgetADIRONDACK LAND TRUST INC: $2,000 over 3y, 0.0% of budgetPROTECT THE ADIRONDACKS INC: $2,000 over 3y, 0.2% of budgetADIRONDACK FOUNDATION: $1,500 over 1y, 0.0% of budgetROCHESTER FRIENDLY HOME: $1,000 over 1y, 0.0% of budgetSEEKING COMMON GROUND INC: $1,000 over 1y, 2.5% 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.

  • Who funds MANA-SOTA LIGHTHOUSE FOR THE BLIND INC ↗
  • Who funds The Finger Lakes Land Trust Inc ↗
  • Who funds Genesee Valley Conservancy Inc ↗
  • Who funds REACH OF HAYWOOD COUNTY INC ↗
  • Who funds HABITAT FOR HUMANITY INTERNATIONAL HAYWO ↗
  • Who funds Canandaigua Lake Watershed Association ↗
  • Who funds MOHAWK HUDSON LAND CONSERVANCY ↗
  • Who funds Southeastern Guide Dogs Inc ↗
  • Who funds FOODLINK INC ↗
  • Who funds WORLD CENTRAL KITCHEN INC ↗
  • Who funds COBBLESTONE FOUNDATION INCORPORATED ↗
  • Who funds SARGES ANIMAL RESCUE FOUNDATION INC ↗
  • Who funds CANCER CONNECTION INC ↗
  • Who funds VAIL VETERANS FOUNDATION INC ↗
  • Who funds YMCA OF GREATER ROCHESTER (4368) ↗
  • Who funds The Friends of the Mendon Public Library Inc ↗
  • Who funds MOTE MARINE LABORATORY INC ↗
  • Who funds ALZHEIMER'S DISEASE RESEARCH FOUNDATION ↗
  • Who funds MOUNTAIN PROJECTS INC ↗
  • Who funds THE ADIRONDACK COUNCIL INC ↗
  • Who funds WILD WINGS INC ↗
  • Who funds AIM AT MELANOMA ↗
  • Who funds THE RESCUE INN INC ↗
  • Who funds ROCHESTER CROSS COUNTRY SKIFOUNDATION ↗
  • Who funds AIM HIGH CHILDRENS SERVICES ↗
  • Who funds THE LAKE PLACID ASSOCIATION FOR MUSIC DRAMA AND ART INC ↗
  • Who funds ADIRONDACK MOUNTAIN CLUB INC ↗
  • Who funds THE COMMUNITY KITCHEN INC ↗
  • Who funds GUIDING EYES FOR THE BLIND INC ↗
  • Who funds ADIRONDACK LAND TRUST INC ↗

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.

Rochester Area Community FoundationNY20.1× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Rochester Area Community Foundation · Cloudsplitter Foundation · Ge Aerospace Foundation · Rochester Area Community Foundation Depository Inc · Ibm International Foundation · JM McDonald Foundation Inc · The Nature Conservancy · The Pfizer Foundation Inc · Duke Energy Foundation · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving 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.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 20%2%6%14%25%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →median 4%
  • Mote Marine Laboratory Inc: 4% of income from government
  • Southeastern Guide Dogs Inc: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
16report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–30%
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 May Kay Houck Foundation?

Find your warmest path to May Kay Houck 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 49 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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