Skip to content
Foundation Dossiers

California · Private foundation

William H Hannon Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$801k
Granted FY2024(still arriving)
119
Itemized grants FY2024
Read the full brief
Itemized, FY2024
$729k
The rest is grants the schedule does not break out
Median grant, FY2024
$5,000
Largest grant, FY2024
$50,000
States reached, FY2024
6
Total assets, FY2024
$8.8M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site
93% classified

What it funded, over time

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

Education$350kHuman Services$84kYouth Development$80kReligion$80kHealth$58kArts & Culture$28kHousing & Shelter$8kCommunity Improvement$7kOther$0

Top grantees

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

GranteeTotal grantedYearsShare of their budget
Loyola Marymount University$66,00010%
The Association of Catholic Student Councils$52,50018%
St Joseph Center$27,50010%
Catholic Charities of Los Angeles Inc$16,00010%
Our Lady of Good Counsel High School$15,0001n/a
Occidental College$15,00010%
Seattle University$15,00010%
Children's Hospital Los Angeles$15,00010%
St Anastasia School$13,7501n/a
Homeboy Industries$12,50010%
Show all 60 grantees
All grantees of William H Hannon Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Loyola Marymount University$66,00010%
The Association of Catholic Student Councils$52,50018%
St Joseph Center$27,50010%
Catholic Charities of Los Angeles Inc$16,00010%
Our Lady of Good Counsel High School$15,0001n/a
Occidental College$15,00010%
Seattle University$15,00010%
Children's Hospital Los Angeles$15,00010%
St Anastasia School$13,7501n/a
Homeboy Industries$12,50010%
St Francis Center$12,50010%
Dolores Mission School$10,7501n/a
Saint John's Health Center Foundation$10,00010%
Outreach Concern Inc$10,00011%
Eisenhower Medical Center$10,00010%
American Federation of Pueri Cantores$10,00014%
Holy Innocents School$10,0001n/a
California Missions Foundation$10,00011%
Catholic Schools Collaborative$8,00011%
Mary of the Sea High School$7,5001n/a
Skirball Cultural Center$7,50010%
Proyecto Pastoral$7,00010%
Puente Learning Center$5,00010%
Mountains Community Hospital Foundation$5,00010%
Optimist Boys' Home and Ranch Inc$5,00010%
Maryvale$5,00010%
Lay Mission Helpers Association$5,00011%
Chaminade University of Honolulu$5,00010%
Los Angeles Master Chorale Association$5,00010%
The Library Foundation of Los Angeles$5,00010%
Sisters of Social Service$5,0001n/a
Sacred Heart High School$5,0001n/a
Westside Food Bank$5,00010%
Teach for America Inc$5,00010%
National Disaster Search Dog Foundation$5,00010%
Big Brothers Big Sisters of Greater Los Angeles$5,00010%
Reading Is Fundamental of Southern California Inc$5,00011%
Covenant House California$5,00010%
Making the Right Connections Inc$5,00012%
Valley Family Center$5,00011%
Center for Restorative Justice Works$5,00011%
Venice Family Clinic$5,00010%
Cathedral High School$5,0001n/a
Variety Boys & Girls Club$5,00010%
Lax Coastal Education Foundation$4,00012%
St Lawrence Martyr School$3,0001n/a
St Maria Goretti School$3,0001n/a
Our Lady of Grace a Corp$3,0001n/a
St Francis de Sales School$3,0001n/a
St Catherine Laboure School$3,0001n/a
Alexandria House$3,00010%
St Martin of Tours School$3,0001n/a
The Trustees of Princeton University$3,00010%
Sacred Heart School$3,0001n/a
Children's Institute Inc$2,50010%
Marlborough School$2,50010%
Marianne Frostig Ctr of Edu Therapy$2,50010%
Los Angeles Education Partnership$2,50010%
Mass General Brigham Incorporated$2,0001n/a
St Anne's Foundation$1,50010%

What it could do for these grantees

Plus 39 recipients with no EIN on record ($213k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget William H Hannon Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetLoyola Marymount University: $66,000 over 1y, 0.0% of budgetThe Association of Catholic Student Councils: $52,500 over 1y, 8.3% of budgetSt Joseph Center: $27,500 over 1y, 0.1% of budgetCatholic Charities of Los Angeles Inc: $16,000 over 1y, 0.0% of budgetOccidental College: $15,000 over 1y, 0.0% of budgetSeattle University: $15,000 over 1y, 0.0% of budgetChildren's Hospital Los Angeles: $15,000 over 1y, 0.0% of budgetHomeboy Industries: $12,500 over 1y, 0.0% of budgetSt Francis Center: $12,500 over 1y, 0.2% of budgetSaint John's Health Center Foundation: $10,000 over 1y, 0.0% of budgetOutreach Concern Inc: $10,000 over 1y, 0.8% of budgetEisenhower Medical Center: $10,000 over 1y, 0.0% of budgetAmerican Federation of Pueri Cantores: $10,000 over 1y, 3.6% of budgetCalifornia Missions Foundation: $10,000 over 1y, 0.8% of budgetCatholic Schools Collaborative: $8,000 over 1y, 0.5% of budgetSkirball Cultural Center: $7,500 over 1y, 0.0% of budgetProyecto Pastoral: $7,000 over 1y, 0.1% of budgetPuente Learning Center: $5,000 over 1y, 0.0% of budgetMountains Community Hospital Foundation: $5,000 over 1y, 0.4% of budgetOptimist Boys' Home and Ranch Inc: $5,000 over 1y, 0.0% of budgetMaryvale: $5,000 over 1y, 0.0% of budgetLay Mission Helpers Association: $5,000 over 1y, 1.4% of budgetChaminade University of Honolulu: $5,000 over 1y, 0.0% of budgetLos Angeles Master Chorale Association: $5,000 over 1y, 0.0% of budgetThe Library Foundation of Los Angeles: $5,000 over 1y, 0.1% of budgetWestside Food Bank: $5,000 over 1y, 0.1% of budgetTeach for America Inc: $5,000 over 1y, 0.0% of budgetNational Disaster Search Dog Foundation: $5,000 over 1y, 0.1% of budgetBig Brothers Big Sisters of Greater Los Angeles: $5,000 over 1y, 0.1% of budgetReading Is Fundamental of Southern California Inc: $5,000 over 1y, 1.0% of budgetCovenant House California: $5,000 over 1y, 0.0% of budgetMaking the Right Connections Inc: $5,000 over 1y, 1.8% of budgetValley Family Center: $5,000 over 1y, 0.8% of budgetCenter for Restorative Justice Works: $5,000 over 1y, 0.6% of budgetVenice Family Clinic: $5,000 over 1y, 0.0% of budgetVariety Boys & Girls Club: $5,000 over 1y, 0.2% of budgetLax Coastal Education Foundation: $4,000 over 1y, 1.7% of budgetAlexandria House: $3,000 over 1y, 0.1% of budgetThe Trustees of Princeton University: $3,000 over 1y, 0.0% of budgetChildren's Institute Inc: $2,500 over 1y, 0.0% of budgetMarlborough School: $2,500 over 1y, 0.0% of budgetMarianne Frostig Ctr of Edu Therapy: $2,500 over 1y, 0.0% of budgetLos Angeles Education Partnership: $2,500 over 1y, 0.0% of budgetSt Anne's Foundation: $1,500 over 1y, 0.2% 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 44.

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.

The Ahmanson Foundati…Carrie Estelle Doheny…The Green FoundationThe Rose Hills Founda…California Community …The Ralph M Parsons F…Thomas & Dorothy Leav…Stern Sidney Memorial…Conrad N Hilton Found…Specialty Family Foun…The Fred and June Mac…Klm Foundation
The Ahmanson FoundationCA41.2× affinity18 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Ahmanson Foundation · Carrie Estelle Doheny Foundation · The Green Foundation · The Rose Hills Foundation · California Community Foundation · The Ralph M Parsons Foundation · Thomas & Dorothy Leavey Foundation · Stern Sidney Memorial Tuw · Conrad N Hilton Foundation · Specialty Family Foundation · The Fred and June Macmurray Foundation · Klm 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 William H Hannon Foundation with peer funders

About William H Hannon Foundation

How much does William H Hannon Foundation give?
William H Hannon Foundation reported 119 itemized grants totaling $729,400, out of $801,150 in total grant expense reported on the return in its FY2024 IRS filing.
What does William H Hannon Foundation fund?
By grant dollars over FY2024 to FY2024, its largest causes are Education (3%), Human Services (1%), Youth Development (1%).
Who are William H Hannon Foundation's largest grantees?
By total granted over FY2024 to FY2024: Loyola Marymount University ($66k), The Association of Catholic Student Councils ($53k), St Joseph Center ($28k).
Does William H Hannon Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as William H Hannon Foundation?
Its strongest co-funders, measured against what their size predicts, include The Ahmanson Foundation, Carrie Estelle Doheny Foundation, The Green Foundation.
Where is William H Hannon Foundation based?
William H Hannon Foundation is based in CA.

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 99 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.

Possibly out of date. A more recent filing (FY2025) is on record and reports $707k of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2024, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

Play a game based on William H Hannon’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