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Illinois · Private foundation

Hamill 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.

$50M
Granted FY2024(still arriving)
132
Grants FY2024
89
Organizations funded FY2023
1%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$5,000
Largest grant, FY2024
$10,862,968
Organizations funded a year
89 to 134
FY2020 to FY2023
States reached, FY2024
20
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 1% of the organizations Hamill 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; $1k went to new ones.

50%100%’21’22’23
RenewedFirst-time

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

’21’22’23
EnvironmentEducationRecreation & SportsArts & CulturePhilanthropyYouth 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
FY2024still arriving97$50M18%
FY202389$7.4M1%
FY202295$11M7%
FY2021120$6.5M16%
FY2020134$8.1Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Philanthropy$44MEnvironment$27MAnimals$9.5MArts & Culture$3.7MEducation$443kRecreation & Sports$420kReligion$100kInternational$99kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
VT
NH
WA
ID
MT
MN
IL
WI
NY
MA
OR
WY
NJ
CT
RI
CA
CO
MO
KY
VA
MD
NM
NC
SC
DC
HI
GA
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 146 grantees
All grantees of Hamill Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Openlands$7,642,000524%
Chicago Zoological Society$5,389,99453%
The Morton Arboretum$4,050,00053%
Environmental Law and Policy Center of the Midwest$2,879,000510%
The Conservation Foundation$2,171,000525%
Jo Daviess Conservation Foundation Inc$1,798,911532%
Field Museum of Natural History$1,790,00052%
Teton Regional Land Trust Inc$1,564,500521%
Naples Zoo Inc$948,596210%
Carwythen Charitable Trust Dated 8/7/2019$758,65515%
Natural Land Institute$755,000521%
International Crane Foundation Inc$753,25052%
Friends of Nachusa Grasslands$625,000535%
The Corwith Fund$480,34313%
Hamill Charitable Trust$480,34013%
Prairie State Conservation Coalition$230,000535%
American Horse Trials Foundation Inc$220,00052%
National Parks Conservation Association$205,00050%
National Forest Foundation$200,00020%
The Conservancy of Southwest Florida$145,00041%
Barrington Area Conservation Trust Inc$125,500510%
The Hotchkiss School$125,00050%
The Adirondack Council Inc$124,00051%
Equine Land Conservation Resource$115,000519%
Little Home Church by the Wayside$100,0001n/a
United States Equestrian Team Foundation Inc$90,00051%
Land Trust Alliance Inc$89,00050%
University of Oregon Foundation$84,00020%
Grand Teton National Park Foundation$82,50050%
Natural Resources Defense Council Inc$81,00050%
Naples Botanical Garden Inc$80,00040%
Barrington Area Comm Foundation Inc$75,00054%
The Bhutan Foundation$75,00051%
Masters School$67,00050%
Balanced Rock Foundation$66,000514%
Northern Forest Canoe Trail Inc$52,00059%
Citizens for Conservation Inc$50,00052%
Cofan Survival Fund Inc$50,00056%
Tompkins Conservation$45,00050%
Friends of Barrington's White House$40,00042%
Fox River Valley Hound Heritage Foundation$38,500513%
Environmental Defense Fund Incorporated$34,00050%
Earthjustice$32,00050%
Naturebridge$25,80050%
Defenders of Wildlife$25,00050%
Yale University$25,0001n/a
Elgin Academy$25,00030%
Agricultural Stewardship Assn Inc$25,00011%
Saratoga Springs Universal Preservation Hall$20,00023%
Woodstock Community Trust Inc$20,00023%
Fox River Valley Pony Club$20,00045%
Sierra Club Foundation$18,00050%
The Friends of the Cornell Lab of Ornithology Inc$17,00050%
The Trust for Public Land$17,00050%
World Wildlife Fund Inc$16,00040%
Colorado Rocky Mountain School Inc$15,50050%
The Wayne Area Conservancy Foundation$14,00042%
World Learning Inc$13,00050%
Advocate Charitable Foundation$12,50010%
Planned Parenthood Federation of America Inc$10,00020%
Hooved Animal Rescue & Protection Society$10,00051%
Garfield Heritage Society$10,00051%
The Land Conservancy of McHenry County$9,50050%
Yosemite Foundation$9,00050%
Friends of the Teton River Inc$9,00050%
The Wetlands Initiative$9,00050%
Adirondack Explorer Inc$9,00020%
Saratoga Plan Inc$9,00020%
Wayne Historical Preservation Society$8,500512%
Monterey Bay Aquarium Foundation$8,00050%
Camp Chippewa Foundation$8,00051%
American Rivers Inc$7,00050%
Illinois Prairie Path$7,0005n/a
Shady Hill School$5,50020%
Robert Louis Stevenson School$5,50020%
American Farmland Trust$5,00050%
Rails to Trails Conservancy$5,00050%
Illinois Audubon Society$5,00050%
Vermont Land Trust Inc$5,00050%
Upper Valley Land Trust Inc$5,00050%
Jackson Hole Land Trust$5,00050%
The Trustees of Reservations$5,00020%
Gathering Waters Inc$5,00050%
Bowdoin College$5,00050%
Chicago Horticultural Society$5,00050%
The Student Conservation Association Inc$5,00050%
Open Space Institute Inc$5,00010%
The Wilderness Society$5,00050%
Voyageurs Conservancy$5,00050%
American Bird Conservancy$5,00050%
President and Fellows of Middlebury College$5,00010%
Greater Yellowstone Coalition$5,00050%
African Wildlife Foundation Inc$5,00050%
Choate Rosemary Hall Foundation Incorporated$5,00050%
Friends of the Forest Preserves$5,00050%
International Snow Leopard Trust$4,00040%
Max McGraw Wildlife Foundation$4,00040%
Center for Plant Conservation Inc$3,00030%
High Country News$3,00030%
Alliance for Community Transformations$3,00020%
Trustees of Deerfield Academy$2,50010%
Glaad Inc$2,00010%
The Ayurvedic Institute$2,00020%
Chicago Coalition to End Homelessness$2,00010%
The Surfrider Foundation$2,00010%
The Food Project Inc$2,00020%
Center for Whole Communities Inc$2,00020%
Resources Legacy Fund$2,00010%
Brady Center to Prevent Gun Violence$2,00010%
NoticeAbility Inc$2,00020%
Legal Aid Chicago$2,00010%
Groundswell Fund$2,00010%
Giffords Law Center to Prevent Gun Violence$2,00010%
Amnesty International of the USA Inc$2,00010%
Lighthawk$2,00020%
Equip for Equality$2,00010%
The Green Mountain Club Inc Debonis$1,50010%
Appalachian Mountain Club$1,50010%
Waipa Foundation$1,50010%
American Indian Council of Mariposa County$1,50010%
Purple Crayon Productions Inc$1,50010%
National Organization for Women Foundation Inc$1,00010%
Girl Scouts of California's Central Coast$1,00010%
Kevin & Brittany Kisner Foundation$1,00010%
Point Reyes Bird Observatory$1,00010%
Period Inc$1,00010%
Woodstock Area Mountain Bike Association$1,0001n/a
San Luis Obispo County Bicycle Coalition$1,00010%
Girls on the Run International Inc$1,00010%
Trevor Project Inc$1,00010%
Cayucos Land Conservancy$1,00010%
Black Mamas Matter Alliance Inc$1,0001n/a
Protect Our Winters$1,00010%
Greater Fresno Area Intergroup Association Inc$1,00011%
For the Girls Inc$1,00010%
Trout Unlimited Inc$1,00010%
Partners in Health a Nonprofit Corporation$1,00010%
American Physical Society$1,00010%
Small Wilderness Area Preserves$1,0001n/a
Conservation International Foundation$1,00010%
Swedish Medical Center Foundation$1,00010%
Medecins Sans Frontieres USA Inc$1,00010%
Artists for Humanity Inc$1,00010%
Seacology$1,00010%
American Safe Climbing Association$50010%
Free Wheelchair Mission$50010%

What it could do for these grantees

Plus 32 recipients with no EIN on record ($47M), not named here.

Where it is load-bearing

Hamill Family Foundation supplied at least a quarter of the budget for 3 of its grantees at some point. The chart plots its 140 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetOpenlands: $7,642,000 over 5y, 24% of budgetChicago Zoological Society: $5,389,994 over 5y, 3.4% of budgetThe Morton Arboretum: $4,050,000 over 5y, 3.1% of budgetEnvironmental Law and Policy Center of the Midwest: $2,879,000 over 5y, 9.6% of budgetThe Conservation Foundation: $2,171,000 over 5y, 25% of budgetJo Daviess Conservation Foundation Inc: $1,798,911 over 5y, 32% of budgetField Museum of Natural History: $1,790,000 over 5y, 2.1% of budgetTeton Regional Land Trust Inc: $1,564,500 over 5y, 21% of budgetNaples Zoo Inc: $948,596 over 2y, 10% of budgetCarwythen Charitable Trust Dated 8/7/2019: $758,655 over 1y, 5.4% of budgetNatural Land Institute: $755,000 over 5y, 21% of budgetInternational Crane Foundation Inc: $753,250 over 5y, 1.7% of budgetFriends of Nachusa Grasslands: $625,000 over 5y, 35% of budgetThe Corwith Fund: $480,343 over 1y, 3.3% of budgetHamill Charitable Trust: $480,340 over 1y, 3.4% of budgetPrairie State Conservation Coalition: $230,000 over 5y, 35% of budgetAmerican Horse Trials Foundation Inc: $220,000 over 5y, 2.2% of budgetNational Parks Conservation Association: $205,000 over 5y, 0.2% of budgetNational Forest Foundation: $200,000 over 2y, 0.4% of budgetThe Conservancy of Southwest Florida: $145,000 over 4y, 0.8% of budgetBarrington Area Conservation Trust Inc: $125,500 over 5y, 10% of budgetThe Hotchkiss School: $125,000 over 5y, 0.0% of budgetThe Adirondack Council Inc: $124,000 over 5y, 1.4% of budgetEquine Land Conservation Resource: $115,000 over 5y, 19% of budgetUnited States Equestrian Team Foundation Inc: $90,000 over 5y, 0.5% of budgetLand Trust Alliance Inc: $89,000 over 5y, 0.4% of budgetUniversity of Oregon Foundation: $84,000 over 2y, 0.0% of budgetGrand Teton National Park Foundation: $82,500 over 5y, 0.5% of budgetNatural Resources Defense Council Inc: $81,000 over 5y, 0.0% of budgetNaples Botanical Garden Inc: $80,000 over 4y, 0.2% of budgetBarrington Area Comm Foundation Inc: $75,000 over 5y, 3.7% of budgetThe Bhutan Foundation: $75,000 over 5y, 0.8% of budgetMasters School: $67,000 over 5y, 0.1% of budgetBalanced Rock Foundation: $66,000 over 5y, 14% of budgetNorthern Forest Canoe Trail Inc: $52,000 over 5y, 9.3% of budgetCitizens for Conservation Inc: $50,000 over 5y, 1.6% of budgetCofan Survival Fund Inc: $50,000 over 5y, 6.0% of budgetTompkins Conservation: $45,000 over 5y, 0.2% of budgetFriends of Barrington's White House: $40,000 over 4y, 2.3% of budgetFox River Valley Hound Heritage Foundation: $38,500 over 5y, 13% of budgetEnvironmental Defense Fund Incorporated: $34,000 over 5y, 0.0% of budgetEarthjustice: $32,000 over 5y, 0.0% of budgetNaturebridge: $25,800 over 5y, 0.1% of budgetDefenders of Wildlife: $25,000 over 5y, 0.0% of budgetElgin Academy: $25,000 over 3y, 0.1% of budgetAgricultural Stewardship Assn Inc: $25,000 over 1y, 0.6% of budgetSaratoga Springs Universal Preservation Hall: $20,000 over 2y, 3.2% of budgetWoodstock Community Trust Inc: $20,000 over 2y, 2.8% 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 140.

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.

Illinois Clean Energy Community FoundationIL27.2× affinity11 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Illinois Clean Energy Community Foundation · S & E Bramsen Foundation · The Nature Conservancy · Gaylord and Dorothy Donnelley Foundation · The Corwith Fund · Grand Victoria Foundation · Land Trust Alliance Inc · The Chicago Community Trust · Ranch Spur Charitable Trust · Yellow-Crowned Foundation · Marin Community Foundation · National Fish and Wildlife 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 Hamill Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Hamill Family Foundation?

Find your warmest path to Hamill Family 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.

About Hamill Family Foundation

How much does Hamill Family Foundation give?
Hamill Family Foundation reported 132 grants totaling $50,188,807 in its FY2024 IRS filing. It funded between 89 and 134 organizations a year over FY2020 to FY2023.
What does Hamill Family Foundation fund?
By grant dollars over FY2020 to FY2024, its largest causes are Philanthropy (52%), Environment (31%), Animals (11%).
Who are Hamill Family Foundation's largest grantees?
By total granted over FY2020 to FY2024: Openlands ($7.6M), Chicago Zoological Society ($5.4M), The Morton Arboretum ($4.0M).
Does Hamill Family Foundation fund new organizations?
In FY2023, 1% of the organizations it funded were first-time grantees.
Does Hamill 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 Hamill Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Illinois Clean Energy Community Foundation, S & E Bramsen Foundation, The Nature Conservancy.
Where is Hamill Family Foundation based?
Hamill Family Foundation is based in IL.

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 184 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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