Skip to content

· Private foundation

Potoff Private Philanthropy

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.6M
Granted FY2025still arriving
5
Grants FY2025still arriving
1
States reached
$775k
Largest
01What it funds
01100% classified

What it funded, over time

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

Animals$2.3MEducation$1.5MArts & Culture$1.5MEmployment$103kHousing & Shelter$15kCommunity Improvement$13kPublic Benefit$10kEnvironment$1k
02FY2025 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $50k–250k3 grants · $517k
  • $250k+2 grants · $1.1M
$200,000
Median grant
1
States reached
$13M
Total assets
Largest grants
RecipientAmount
ARIZONA LOCAL NEWS FOUNDATION$775,000
HANDI-DOGS INC DBA ABILITY DOGS OF ARIZONA$300,000
PIMA COUNTY SUPERINTENDENT OF SCHOOLS$200,000
PIMA JTED FOUNDATION$177,000
MAKE WAY FOR BOOKS$140,000
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 (FY25–25, $300k) land where the poverty rate runs at 15%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%HANDI-DOGS INC DBA ABILITY DOGS OF ARIZONA: $300k → 15%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.
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.

52%of every dollar goes to organizations it has funded before.
$2.8M · 4 repeat orgs$2.6M to everyone else

Grantees it renews have grown median revenue +59% since the first grant, against 0% for those funded once.

4 repeat relationships: 3 still active in FY2025, 1 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

4
9

Total granted

$2.8M
$2.2M

Median revenue growth · since first grant

+59%
0%

Still filing today

50%
44%

New vs renewed · share of each year

In FY2025, 72% of grant dollars renewed an existing relationship; $440k went to new ones.

50%100%’19’20’21’22’23’24’25
RenewedFirst-time

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

’19’20’21’22’23’24’25
EducationCommunity ImprovementEmploymentHousing & ShelterAnimalsHuman ServicesOther
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

  • AL
    Arizona Local News Foundation
    2× · 2024–2025 · $1.5M · revenue +2% · 60% of their budget
  • PJ
    PIMA JTED FOUNDATION
    4× · 2022–2025 · $657k · revenue +59%
  • PC
    PIMA COUNTY SUPERINTENDENT OF SCHOOLS
    3× · 2022–2025 · $600k

Funded once

  • IG
    Individual grant recipient
    one grant, 2023 · $2.0M
  • TP
    THE PIMA COUNTY ACCOMMODATION SCHOOL DISTRICT CYCLE PROGRAM
    one grant, 2021 · $100k
  • TP
    The Primavera Foundation Inc
    one grant, 2024 · $15k · revenue -18%
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
Arizona Local Post

Our mission is to educate and inform public discourse and civic participation in arizona through local, independent journalism.

Arts & Culture
2
Arizona Latin-American Medical Association
Unclassified
3
Arts Foundation for Tucson and Southern Arizona

The Arts Foundation mission is to advance artistic expression, civic participation, and equitable economic growth of our diverse community by supporting, promoting, and advocating for arts and culture in our region.

Arts & Culture
4
Arizona Wins

Az wins is a coalition of organizations dedicated to achieving public policies that benefit working arizona families and advancing an inclusive, engaged, just and equitable state for all arizonans. in 2024 az wins substantially reduced its…

Civil Rights
5
Arizona Forward Association

Arizona Forward brings business and civic leaders together to promote cooperative efforts to improve the environmental sustainability and economic vitality of our state and local regions.

Community Improvement
6
Pro-Choice Arizona

Pro-Choice Arizona centers abolition and reproductive justice values to prioritize community needs. We advance reproductive equity, pregnancy and family justice, and abortion access for all folks living in Arizona through direct service…

Health
7
One Arizona

One arizonas mission is to increase civic participation among arizonans

Civil Rights
8
Instituto Power

Instituto's mission is to build sustained political power of low-income and communities of color in Arizona.

Public Benefit
9
Central Arts Alliance

Phoenix Center for the Arts provides arts and culture opportunities for all through education, programming and advocacy.

Arts & Culture
10
San Antonio Report

Publishing a local online news source. We believe a well informed and connected community is essential to making San Antonio a better place to live, work and play.

Arts & Culture
11
Sonoran Prevention Works

Sonoran Prevention Works mission is building a healthy Arizona with people who use drugs. We envision an Arizona where justice, autonomy & wellbeing are guaranteed for people who use drugs.

Health
12
Arizona Sustainability Alliance

To create and support cutting-edge, project-based sustainability solutions in arizona.

Environment
How this is measured
The grantee most central to the portfolio’s shape is Pima Jted Foundation; the most unlike its peers is Tucson Investigative Reporting Center Inc. 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

8 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. 8 of the 15 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.

2
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
8/8
Grantees still filing
3/8
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $2,000,000 · OtherIndividual grant recipientPIMA COUNTY SUPERINTENDENT OF SCHOOLS: $600,000 · OtherPIMA COUNTY SUPERINTENDENT OF SCHOOLSPIMA COUNTY JTED FOUNDATION: $113,185 · OtherTHE PIMA COUNTY ACCOMMODATION SCHOOL DISTRICT CYCLE PROGRAM: $100,000 · Other+3 more: $26,000 · OtherArizona Local News Foundation: $1,475,000 · EmploymentArizona Local News FoundationPIMA JTED FOUNDATION: $657,000 · EducationPIMA JTED FOUNDA…Make Way For Books: $140,000 · EducationMake Way For Boo…HANDI-DOGS INC: $300,000 · Human ServicesThe Primavera Foundation Inc: $15,000 · Housing & ShelterTucson Investigative Reporting Center Inc: $15,000 · AnimalsROTARY CLUB OF TUCSON FOUNDATION: $10,000 · Community ImprovementMETROPOLITAN PIMA ALLIANCE: $2,500 · Community Improvement
Other$2,839,185Employment$1,475,000Education$797,000Human Services$300,000Housing & Shelter$15,000Animals$15,000Community Improvement$12,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetArizona Local News Foundation: $1,475,000 over 2y, 60% of budgetPIMA JTED FOUNDATION: $657,000 over 4y, 22% of budgetHANDI-DOGS INC: $300,000 over 1y, 53% of budgetMake Way For Books: $140,000 over 1y, 3.8% of budgetThe Primavera Foundation Inc: $15,000 over 1y, 0.1% of budgetTucson Investigative Reporting Center Inc: $15,000 over 1y, 3.0% of budgetROTARY CLUB OF TUCSON FOUNDATION: $10,000 over 1y, 1.8% 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 Arizona Local News Foundation ↗
  • Who funds PIMA JTED FOUNDATION ↗
  • Who funds HANDI-DOGS INC ↗
  • Who funds Make Way For Books ↗
  • Who funds The Primavera Foundation Inc ↗
  • Who funds Tucson Investigative Reporting Center Inc ↗
  • Who funds ROTARY CLUB OF TUCSON FOUNDATION ↗
  • Who funds METROPOLITAN PIMA ALLIANCE ↗

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.

Community Foundation for Southern ArizonaAZ17.7× affinity6 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation for Southern Arizona · United Way of Tucson and Southern Arizona Inc · Arizona Community Foundation · National Philanthropic Trust · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc

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 Potoff Private Philanthropy funds: left to right is the share of its income from government, bottom to top the share from Potoff Private Philanthropy. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%5%19%42%75%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    1report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    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.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Potoff Private Philanthropy?

    Find your warmest path to Potoff Private Philanthropy 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.

    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 15 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 Potoff Private Philanthropy’s filings →

    More from the funding graph