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California · Private foundation

John R Peterson 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.

$984k
Granted FY2025(still arriving)
18
Grants FY2025
12
Organizations funded FY2024
42%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,521
Largest grant, FY2025
$231,500
Organizations funded a year
7 to 13
FY2020 to FY2024
States reached, FY2025
5
Total assets, FY2025
$25M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 42% of the organizations John R Peterson Foundation funded were first-time grantees, receiving 20% of its grant dollars.

New vs renewed · share of each year

In FY2024, 80% of grant dollars renewed an existing relationship; $204k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
AnimalsOther
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 arriving18$984k56%
FY202412$1.0M42%
FY20237$907k0%
FY20227$913k43%
FY20217$1.2M14%
FY202013$622kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Animals$5.6MHealth$20kHuman Services$2k

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
San Diego Humane Society and Spca$851,43360%
Lucky Dog Animal Rescue$639,00056%
Petfix Spay and Neuter$584,591454%
Aloha Ilio Rescue$330,774410%
Kauai SPCA$273,686456%
Los Angeles County Animal Care Foundation$213,00023%
Maui Humane Society$157,10051%
Lanai Cat Sanctuary$128,620410%
Kauai Humane Society Inc$105,50031%
Good Cat Network$100,832148%
Show all 24 grantees
All grantees of John R Peterson Foundation by total granted
GranteeTotal grantedYearsShare of their budget
San Diego Humane Society and Spca$851,43360%
Lucky Dog Animal Rescue$639,00056%
Petfix Spay and Neuter$584,591454%
Aloha Ilio Rescue$330,774410%
Kauai SPCA$273,686456%
Los Angeles County Animal Care Foundation$213,00023%
Maui Humane Society$157,10051%
Lanai Cat Sanctuary$128,620410%
Kauai Humane Society Inc$105,50031%
Good Cat Network$100,832148%
Spokanimal Care$53,20012%
Spay-Neuter Action Project$50,00017%
Lionel S Legacy Inc$50,000219%
Frosted Faces Foundation Inc$30,00013%
Hawaii Island Humane Society Spca$25,00010%
Project Heal Inc$20,0001n/a
Orphan Kitten Club Inc$5,00010%
Mother of Dragons Rescue$2,0001n/a
Southeast German Shorthaired Pointer Rescue Inc$2,0001n/a
Paws for Life K9 Rescue$1,8001n/a
Pets Are Wonderful Support Los Angeles$1,7181n/a
Carolina Loving Hound Rescue$1,7011n/a
Foothills Humane Society Inc$1,00010%
Pet Rescue Solutions$9791n/a

What it could do for these grantees

Plus 8 recipients with no EIN on record ($2.0M), not named here.

Where it is load-bearing

John R Peterson Foundation supplied at least a quarter of the budget for 3 of its grantees at some point. The chart plots its 17 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetSan Diego Humane Society and Spca: $851,433 over 6y, 0.3% of budgetLucky Dog Animal Rescue: $639,000 over 5y, 5.5% of budgetPetfix Spay and Neuter: $584,591 over 4y, 54% of budgetAloha Ilio Rescue: $330,774 over 4y, 10% of budgetKauai SPCA: $273,686 over 4y, 56% of budgetLos Angeles County Animal Care Foundation: $213,000 over 2y, 2.5% of budgetMaui Humane Society: $157,100 over 5y, 1.1% of budgetLanai Cat Sanctuary: $128,620 over 4y, 9.9% of budgetKauai Humane Society Inc: $105,500 over 3y, 1.2% of budgetGood Cat Network: $100,832 over 1y, 48% of budgetSpokanimal Care: $53,200 over 1y, 1.7% of budgetSpay-Neuter Action Project: $50,000 over 1y, 6.8% of budgetLionel S Legacy Inc: $50,000 over 2y, 19% of budgetFrosted Faces Foundation Inc: $30,000 over 1y, 2.6% of budgetHawaii Island Humane Society Spca: $25,000 over 1y, 0.3% of budgetOrphan Kitten Club Inc: $5,000 over 1y, 0.3% of budgetFoothills Humane Society Inc: $1,000 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 17.

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.

Greater Good CharitiesWA24.9× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Greater Good Charities · Petco Love · Petsmart Charities Inc · Banfield Foundation · Best Friends Animal Society · The Duffield Family Foundation Dba Maddie's Fund · Sempra Foundation · Pedigree Foundation · Jewish Community Foundation of San Diego · The Grey Muzzle Organization · Deupree Family Foundation · BISSELL Pet 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 John R Peterson Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to John R Peterson Foundation?

Find your warmest path to John R Peterson 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 John R Peterson Foundation

How much does John R Peterson Foundation give?
John R Peterson Foundation reported 18 grants totaling $984,449 in its FY2025 IRS filing. It funded between 7 and 13 organizations a year over FY2020 to FY2024.
What does John R Peterson Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Animals (100%), Health (0%), Human Services (0%).
Who are John R Peterson Foundation's largest grantees?
By total granted over FY2020 to FY2025: San Diego Humane Society and Spca ($851k), Lucky Dog Animal Rescue ($639k), Petfix Spay and Neuter ($585k).
Does John R Peterson Foundation fund new organizations?
In FY2024, 42% of the organizations it funded were first-time grantees.
Does John R Peterson 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 John R Peterson Foundation?
Its strongest co-funders, measured against what their size predicts, include Greater Good Charities, Petco Love, Petsmart Charities Inc.
Where is John R Peterson Foundation based?
John R Peterson 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 32 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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