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Heiser Foundation at a glance

· Private foundation

Heiser 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.

$23k
Granted FY2025still arriving
14
Grants FY2025still arriving
3
States reached
$16k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Religion$33kHealth$11kAnimals$10kEducation$3kHousing & Shelter$3kArts & Culture$588Environment$200Youth Development$50
02FY2025 · 14 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k13 grants · $7k
  • $10k–50k1 grant · $16k
$130
Median grant
3
States reached
$73k
Total assets
Largest grants
RecipientAmount
TEMPLE ISRAEL$15,664
ANIMAL PROTECTION LEAGUE$5,238
UNIVERSITY OF THE PACIFIC$890
Individual grant recipient$312
OHANA PROJECT$200
STOCKTON SYMPHONY ASSOC$138
Individual grant recipient$130
NETWORK FOR ANIMALS$107
Individual grant recipient$100
CITY OF STOCKTON ANIMALS SHELTER CONTROL$60
Individual grant recipient$50
HAGGIN MUSEUM$45
FRIENDS OF CHAMBER MUSIC$30
STOCKTON ART LEAGUE$20
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 (FY24–24, $3k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%UPLIFT ALL FOUNDATION: $3k → 12%HOSPICE OF SAN JOAQUIN: $600 → 12%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

MT
NY
MA
CA
UT
VA
MD
DC
GA
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.

81%of every dollar goes to organizations it has funded before.
$49k · 17 repeat orgs$12k to everyone else

Grantees it renews have grown median revenue +32% since the first grant, against 0% for those funded once.

17 repeat relationships: 11 still active in FY2025, 6 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

17
27

Total granted

$49k
$6k

Median revenue growth · since first grant

+32%
0%

Still filing today

24%
37%

New vs renewed · share of each year

In FY2025, 77% of grant dollars renewed an existing relationship; $5k went to new ones.

50%100%’21’22’23’24’25
RenewedFirst-time

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

’21’22’23’24’25
AnimalsArts & CultureHuman ServicesEducationEnvironmentHealthOther
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

  • UO
    University of the Pacific
    5× · 2021–2025 · $3k · revenue +23%
  • PF
    PEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC
    2× · 2021–2023 · $435 · revenue +82%
  • HW
    Humane World for Animals Inc
    3× · 2022–2024 · $210 · revenue +32%

Funded once

  • TU
    THE UPLIFT ALL FOUNDATION
    one grant, 2024 · $3k · revenue 0%
  • HO
    Hospice of San Joaquin
    one grant, 2024 · $600 · revenue +11%
  • KR
    KITTEN RESCUE 101graduated
    one grant, 2023 · $400 · revenue +69%
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 San Francisco Society for the Prevention of Cruelty to Animals

To ensure every companion animal has access to quality medical care, compassionate shelter, and a loving home.

Animals
2
The American Society for the Prevention of Cruelty to Animals

The aspca's mission, as stated by founder henry bergh in 1866, is "to provide effective means for the prevention of cruelty to animals throughout the united states." the aspca was founded on the belief that animals are entitled to kind and…

Animals
3
Global Animal Partnership
Animals
4
Humane Society Silicon Valley

At humane society silicon valley, our mission is to save lives, keep families together, and create a better future for pets and their people.(see schedule o for continuation)

Animals
5
Jet Wag Animal Rescue Inc

Our mission is to move adoptable dogs and cats primarily from heavily-burdened areas to loving homes. We work with trusted partners throughout the country and around the world and facilitate vet care, transport, and adoptions to help…

Animals
6
All About Animals Rescue

All about animals rescue's mission is no more homeless pets.

Animals
7
Coalition of Pet and Public Safety

A group of individuals who share a deep commitment to reducing the pet overpopulation and resulting public safety problems. Altering dogs and cats is the most widely recognized strategy to diminish this problem.

—
8
Community Animal Treatment Center

Community Animal Treatment Center (CATC) is a 501(c)(3) nonprofit organization committed to delivering high-quality, high-volume spay and neuter (HQHVSN) services for community cats and pets, with a focus on supporting low-income…

Animals
9
Society for the Prevention of Cruelty to Animals of Northern Nv

Our mission is to be an innovative regional leader in responsible treatment of homeless dogs and cats, primarily through their rescue and placement in forever loving homes and by promoting spaying and neutering to control pet…

Unclassified
10
San Diego Humane Society and Spca

Create a more humane world by inspiring compassion, providing hope and advancing the welfare of animals and people.

Animals
11
Animal Protection League of Okaloosa County Inc

We are a non-profit organization who provide low cost spay and neuter service for cats and dogs.

Animals
12
Humane World for Animals International

HUMANE WORLD FOR ANIMALS INTERNATIONAL, FKA HUMANE SOCIETY INTERNATIONAL (HSI), works around the globe to promote the human-animal bond, rescue and protect dogs and cats, improve farm animal welfare, protect wildlife, promote animal-free…

Animals
How this is measured
The grantee most central to the portfolio’s shape is Best Friends Animal Society; the most unlike its peers is Central Valley Bird Club. 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

18 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. 18 of the 47 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)
3
Early backer (in before they grew)
17/18
Grantees still filing
10/18
Grew since first funded

Where the money sits, by cause and then by grantee

TEMPLE ISRAEL: $32,272 · OtherTEMPLE ISRAELIndividual grant recipient: $4,243 · OtherIndividual grant recipientIndividual grant recipient: $2,811 · OtherIndividual grant recipient+28 more: $7,739 · Other+28 moreANIMAL PROTECTION LEAGUE: $5,238 · AnimalsANIMAL PROTE…PEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC: $435 · AnimalsPEOPLE FOR T…KITTEN RESCUE 101: $400 · AnimalsKITTEN RESCU…ANIMAL FRIENDS CONNECTION HUMANE SOCIETY: $350 · Animals+4 more: $430 · Animals+4 moreUniversity of the Pacific: $3,357 · EducationTHE UPLIFT ALL FOUNDATION: $2,500 · Human ServicesHospice of San Joaquin: $600 · Human ServicesSTOCKTON SYMPHONY ASSOCIATION INC: $138 · Arts & CultureKVIE INC: $65 · Arts & CultureCENTRAL VALLEY BIRD CLUB: $55 · Arts & CultureFRIENDS OF ARAVA THE INSTITUTE LTD: $200 · EnvironmentAMERICAN CANCER SOCIETY INC: $20 · Health
Other$47,065Animals$6,853Education$3,357Human Services$3,100Arts & Culture$258Environment$200Health$20

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 budgetUniversity of the Pacific: $3,357 over 5y, 0.0% of budgetTHE UPLIFT ALL FOUNDATION: $2,500 over 1y, 0.1% of budgetHospice of San Joaquin: $600 over 1y, 0.0% of budgetPEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC: $435 over 2y, 0.0% of budgetKITTEN RESCUE 101: $400 over 1y, 0.8% of budgetANIMAL FRIENDS CONNECTION HUMANE SOCIETY: $350 over 1y, 0.0% of budgetHumane World for Animals Inc: $210 over 3y, 0.0% of budgetFRIENDS OF ARAVA THE INSTITUTE LTD: $200 over 2y, 0.0% of budgetTHE LITTLE ANGELS PROJECT: $200 over 1y, 0.1% of budgetSTOCKTON SYMPHONY ASSOCIATION INC: $138 over 1y, 0.0% of budgetBEST FRIENDS ANIMAL SOCIETY: $100 over 1y, 0.0% of budgetEAST OF EDEN CANINE RESCUE: $70 over 1y, 0.0% of budgetKVIE INC: $65 over 1y, 0.0% of budgetCENTRAL VALLEY BIRD CLUB: $55 over 1y, 0.2% of budgetAlley Cat Allies Inc: $50 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC: $20 over 1y, 0.0% 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 ANIMAL PROTECTION LEAGUE ↗
  • Who funds University of the Pacific ↗
  • Who funds THE UPLIFT ALL FOUNDATION ↗
  • Who funds Hospice of San Joaquin ↗
  • Who funds PEOPLE FOR THE ETHICAL TREATMENT OF ANIMALS INC ↗
  • Who funds KITTEN RESCUE 101 ↗
  • Who funds ANIMAL FRIENDS CONNECTION HUMANE SOCIETY ↗
  • Who funds Humane World for Animals Inc ↗
  • Who funds FRIENDS OF ARAVA THE INSTITUTE LTD ↗
  • Who funds THE LITTLE ANGELS PROJECT ↗
  • Who funds STOCKTON SYMPHONY ASSOCIATION INC ↗
  • Who funds BEST FRIENDS ANIMAL SOCIETY ↗
  • Who funds EAST OF EDEN CANINE RESCUE ↗
  • Who funds KVIE INC ↗
  • Who funds CENTRAL VALLEY BIRD CLUB ↗

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 Cortopassi Family…Hachman Family Founda…The 54 FundPetsmart Charities IncNetwork for GoodPaypal Charitable Giv…American Online Givin…Donor Advised Charita…Amazonsmile Foundation
The Cortopassi Family FoundationCA19.9× affinity7 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Cortopassi Family Foundation · Hachman Family Foundation co Butterfield & Co CPAs Inc · The 54 Fund · Petsmart Charities Inc · Network for Good · Paypal Charitable Giving Fund · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Amazonsmile 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 Heiser Foundation funds: left to right is the share of its income from government, bottom to top the share from Heiser Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%0%1%3%5%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →
    no gov moneyreceives it· size = income
    2get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–10%
    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.

    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 47 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 Heiser’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