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California · Private foundation

Michael R & Kathleen B Linburn 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.

$11k
Granted FY2025(still arriving)
4
Grants FY2025
11
Organizations funded FY2024
18%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$5,000
Organizations funded a year
11 to 27
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$783k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 18% of the organizations Michael R & Kathleen B Linburn Foundation funded were first-time grantees, receiving 1% of its grant dollars.

New vs renewed · share of each year

In FY2024, 99% of grant dollars renewed an existing relationship; $2k went to new ones.

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

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

’18’19’20’21’22’23’24
Arts & CultureAnimalsHuman ServicesRecreation & SportsEducationHealthOther
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
FY2025still arriving4$11k25%
FY202411$288k18%
FY202313$230k15%
FY202220$95k60%
FY202111$1.1M36%
FY202027$419k44%
FY201923$208k30%
FY201821$171k29%
98% classified

What it funded, over time

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

Arts & Culture$1.2MReligion$689kHuman Services$403kEducation$213kHealth$89kRecreation & Sports$23kEnvironment$11kSocial Science$10kOther$0

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 31 grantees

What it could do for these grantees

Plus 31 recipients with no EIN on record ($990k), not named here.

Where it is load-bearing

Michael R & Kathleen B Linburn Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 30 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMetropolitan Museum of Art: $1,065,000 over 7y, 0.2% of budgetHealth Advocates for Older People Inc: $200,500 over 9y, 7.9% of budgetSearch and Care Inc: $168,725 over 4y, 8.3% of budgetClarion Music Society: $56,000 over 6y, 4.2% of budgetDaniel Ferro Vocal Program Inc: $27,300 over 4y, 70% of budgetBlood Cancer United Inc: $26,000 over 2y, 0.0% of budgetSan Francisco Parks Alliance: $20,000 over 4y, 0.1% of budgetThe Hotchkiss School: $15,000 over 2y, 0.0% of budgetCity Gardens Club of New York City: $10,900 over 6y, 3.3% of budgetScyc Preservation Foundation Inc: $10,000 over 2y, 12% of budgetThe Spence School: $9,000 over 3y, 0.0% of budgetDenison University: $5,300 over 4y, 0.0% of budget122 East 66th Street Foundation Inc: $5,000 over 1y, 2.8% of budgetTown School for Boys: $4,000 over 3y, 0.0% of budgetPuppies Behind Bars Inc: $4,000 over 4y, 0.0% of budgetDancing Classrooms Inc: $3,050 over 5y, 0.0% of budgetKatherine Delmar Burke School: $3,000 over 3y, 0.0% of budgetVolunteer Referral Center Inc: $2,600 over 2y, 2.3% of budgetCitymeals-On-Wheels: $2,500 over 2y, 0.0% of budgetSan Francisco University High School: $2,000 over 2y, 0.0% of budgetThe San Francisco Society for the Prevention of Cruelty to Animals: $2,000 over 1y, 0.0% of budgetThe Browning School: $2,000 over 2y, 0.0% of budgetThe American Society for the Prevention of Cruelty to Animals: $2,000 over 2y, 0.0% of budgetFresh Air Fund: $1,500 over 2y, 0.0% of budgetBeekman Place Association Inc: $1,200 over 2y, 0.6% of budgetGuide Dogs for the Blind Inc: $1,000 over 1y, 0.0% of budgetThe Cosmopolitan Club: $500 over 1y, 0.0% of budgetPhilharmonia Foundation: $500 over 1y, 0.5% of budgetNational Wildlife Federation: $500 over 1y, 0.0% of budgetCahoon Museum of American Art Inc: $500 over 1y, 0.1% 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 30.

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 Goldman Sachs Charitable Gift FundNY14.1× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Hoerle Foundation Inc · The Hyde and Watson Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Bessemer Giving Fund · Jewish Communal Fund · The Ayco Charitable Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · American Endowment Foundation · The Blackbaud Giving Fund

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 Michael R & Kathleen B Linburn Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Michael R & Kathleen B Linburn Foundation?

Find your warmest path to Michael R & Kathleen B Linburn 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 Michael R & Kathleen B Linburn Foundation

How much does Michael R & Kathleen B Linburn Foundation give?
Michael R & Kathleen B Linburn Foundation reported 4 grants totaling $11,000 in its FY2025 IRS filing. It funded between 11 and 27 organizations a year over FY2018 to FY2024.
What does Michael R & Kathleen B Linburn Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (45%), Religion (26%), Human Services (15%).
Who are Michael R & Kathleen B Linburn Foundation's largest grantees?
By total granted over FY2017 to FY2025: Metropolitan Museum of Art ($1.1M), Health Advocates for Older People Inc ($201k), Search and Care Inc ($169k).
Does Michael R & Kathleen B Linburn Foundation fund new organizations?
In FY2024, 18% of the organizations it funded were first-time grantees.
Does Michael R & Kathleen B Linburn 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 Michael R & Kathleen B Linburn Foundation?
Its strongest co-funders, measured against what their size predicts, include The Goldman Sachs Charitable Gift Fund, Hoerle Foundation Inc, The Hyde and Watson Foundation.
Where is Michael R & Kathleen B Linburn Foundation based?
Michael R & Kathleen B Linburn 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 62 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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