Skip to content
Diamond Foundation at a glance

· Private foundation

Diamond Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$17k
Granted FY2025still arriving
10
Grants FY2025still arriving
2
States reached
$5k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0197% classified

What it funded, over time

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

Education$87kHousing & Shelter$50kArts & Culture$29kHuman Services$19kHealth$13kCivil Rights$13kReligion$10kFood & Nutrition$5kOther$0
02FY2025 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

$1,056
Median grant
2
States reached
$241k
Total assets
Largest grants
RecipientAmount
INTERFAITH COMMUNITY SERVICES$5,000
MARSHALL HOME FOR MEN$5,000
UNIVERSITY OF ARIZONA DISABILITY RESOURCE CENTER$1,500
UNIVERSITY OF ARIZONA FOUNDATION$1,500
JEWISH FAMILY & CHILDREN SERVICES$1,056
CHILDREN'S ACTION ALLIANCE$1,000
TUCSON JEWISH MUSEUM AND HOLOCAUST CENTER$540
TUCSON JEWISH MUSEUM AND HOLOCAUST CENTER$540
PROVISION BRIDGE$500
WORLD JEWISH CONGRESS FOUNDATION$500
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 (FY17–25, $11k) land where the poverty rate runs at 15%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%MARSHALL HOME FOR MEN: $5k → 15%MARSHALL HOME FOR MEN: $500 → 15%MARSHALL HOME FOR MEN: $250 → 15%MARSHALL HOME FOR MEN: $250 → 15%PIMA COUNCIL ON AGING: $1k → 15%PIMA COUNCIL ON AGING: $1k → 15%YOUTH ON THEIR OWN: $2k → 15%ASSISTANCE LEAGUE OF TUCSON INC: $500 → 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.

39%of every dollar goes to organizations it has funded before.
$92k · 21 repeat orgs$143k to everyone else

21 repeat relationships: 5 still active in FY2025, 16 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

21
27

Total granted

$92k
$135k

Median revenue growth · since first grant

+11%
+39%

Still filing today

71%
63%

New vs renewed · share of each year

In FY2025, 55% of grant dollars renewed an existing relationship; $8k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationHuman ServicesYouth DevelopmentReligionHealthOther
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

  • SI
    SCULPTURETUCSONORG INC
    2× · 2023–2024 · $10k · revenue +32%
  • EE
    EDUCATIONAL ENRICHMENT FOUNDATION
    5× · 2019–2024 · $9k · revenue +3%
  • MH
    Marshall Home for Men INC
    4× · 2019–2025 · $6k · revenue +42%

Funded once

  • PJ
    PIMA JTED FOUNDATIONgraduated
    one grant, 2023 · $51k · revenue +112%
  • OP
    Old Pueblo Community Servicesgraduated
    one grant, 2023 · $50k · revenue +29%
  • UO
    UNIVERSITY OF ARIZONA HILLEL
    one grant, 2018 · $5k
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 Latin-American Medical Association
Unclassified
2
Arizona Theatre Company

ATC's mission is to create world-class theatre about what it means to be alive today - inspiring curiosity and creativity, sparking empathy and joy - bringing all Arizonans together.

Arts & Culture
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
United Way of Tucson and Southern Arizona Inc

Our vision is a community where every child receives a high-quality education from birth to career, every adult has the opportunity to thrive financailly and in the workplace, and every older person can retire and age with dignity and…

Philanthropy
5
Tucson Audubon Society

Inspire people to enjoy and protect birds through recreation, education, conservation, and restoration of the environment, upon which we all depend.

Animals
6
Tucson Metropolitan Chamber of Commerce

The Tucson Metro Chamber is a membership-based business advocacy and community development organization that represents 1,500 businesses employing more than 160,000 employees in Tucson and Pima County. The Tucson Metro Chamber is committed…

—
7
American Indian Association of Tucson Inc

Our mission is to lead, serve, empower and advocate for the Tucson urban American Indian community and others by providing culturally appropriate health, wellness and social services.

Human Services
8
Tucson Investigative Reporting Center Inc

The Tucson Investigative Reporting Center educates and informs Southern Arizonans about the community challenges & unique culture of our borderlands through independent local journalism.

Animals
9
Junior League of Tucson Inc

The Junior League of Tucson, Inc., is an organization of women whose mission is to advance womens leadership for meaningful community impact through volunteer action, collaboration, and training.

Community Improvement
10
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
11
Tucson Museum of Art and Historic Block Inc

The tucson museum of art and historic block connects art to life through meaningful and engaging experiences that inspire discovery, spark creativity, and promote cultural understanding.

Arts & Culture
12
Tucson Symphony Society

The mission of the Tucson Symphony is to build and enrich community through the experience of live music of the highest quality.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Educational Enrichment Foundation; the most unlike its peers is Marshall Home for Men 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

35 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. 35 of the 52 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)
8
Early backer (in before they grew)
33/35
Grantees still filing
24/35
Grew since first funded

Where the money sits, by cause and then by grantee

PIMA JTED FOUNDATION: $51,000 · EducationPIMA JTED FOUNDATIONUniversity of Arizona Foundation: $13,000 · EducationUniversity of Arizona FoundationEDUCATIONAL ENRICHMENT FOUNDATION: $8,750 · EducationEDUCATIONAL ENRICHMENT FOUNDATION+2 more: $3,000 · EducationCHILDRENS ACTION ALLIANCE INC: $10,500 · OtherCHILDRENS ACTION ALLIANCE INCUNIVERSITY OF ARIZONA DISABILITY RESOURCE CENTER: $7,500 · OtherUNIVERSITY OF ARIZONA DISABILITY…UNIVERSITY OF ARIZONA HILLEL: $5,000 · OtherUNIVERSITY OF ARIZONA HILLELInterfaith Community Services: $5,000 · OtherInterfaith Community ServicesARIZONA PUBLIC MEDIA - U OF A: $4,000 · OtherARIZONA PUBLIC MEDIA - U OF AUNIVERSITY OF ARIZONA FOUNDATION - DISABILITY RESOURCE CENTER: $3,250 · OtherLAW COLLEGE ASSOCIATION ALUMNI & FRIENDS OF THE JAMES E ROGERS COLLEGE OF L: $2,500 · OtherWEINTRAUB ISRAEL CENTER: $2,500 · OtherCONCERNED CITIZENS OF MONTAUK: $4,000 · OtherCONCERNED CITIZENS OF MONTAUKANTI-DEFAMATION LEAGUE: $3,000 · OtherTU NIDITO CHILDREN AND FAMILY SERVICES INC: $2,500 · Other+22 more: $17,386 · Other+22 moreOld Pueblo Community Services: $50,000 · PhilanthropyOld Pueblo Community Ser…SCULPTURETUCSONORG INC: $10,000 · Arts & CultureSCULPTURET…TUCSON CHILDREN'S MUSEUM INC DBA CHILDREN'S MUSEUM TUCSON: $3,750 · Arts & CultureTUCSON CHI…FOX TUCSON THEATRE FOUNDATION: $2,500 · Arts & CultureFOX TUCSON…TUCSON FESTIVAL OF BOOKS: $2,100 · Arts & CultureTUCSON FES…THE JEWISH HISTORY MUSEUM: $1,540 · Arts & CultureTHE JEWISH…Arts for All Inc: $1,000 · Arts & CultureSouthwest Folklife Alliance Inc: $750 · Arts & CultureMarshall Home for Men INC: $6,000 · Human ServicesYOUTH ON THEIR OWN: $2,000 · Human ServicesPima Council on Aging: $2,000 · Human ServicesVIVA PIMA: $500 · Human ServicesCommunity Food Bank Inc: $5,000 · Food & NutritionTUCSON VALUES TEACHERS: $5,000 · Employment
Education$75,750Other$67,136Philanthropy$50,000Arts & Culture$21,640Human Services$10,500Food & Nutrition$5,000Employment$5,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPIMA JTED FOUNDATION: $51,000 over 1y, 7.4% of budgetOld Pueblo Community Services: $50,000 over 1y, 0.5% of budgetUniversity of Arizona Foundation: $13,000 over 3y, 0.0% of budgetCHILDRENS ACTION ALLIANCE INC: $10,500 over 5y, 0.1% of budgetSCULPTURETUCSONORG INC: $10,000 over 2y, 1.9% of budgetEDUCATIONAL ENRICHMENT FOUNDATION: $8,750 over 5y, 0.3% of budgetMarshall Home for Men INC: $6,000 over 4y, 0.4% of budgetCommunity Food Bank Inc: $5,000 over 1y, 0.0% of budgetInterfaith Community Services: $5,000 over 1y, 0.1% of budgetTUCSON VALUES TEACHERS: $5,000 over 2y, 0.8% of budgetCONCERNED CITIZENS OF MONTAUK: $4,000 over 4y, 0.2% of budgetTUCSON CHILDREN'S MUSEUM INC DBA CHILDREN'S MUSEUM TUCSON: $3,750 over 2y, 0.2% of budgetANTI-DEFAMATION LEAGUE: $3,000 over 2y, 0.0% of budgetTU NIDITO CHILDREN AND FAMILY SERVICES INC: $2,500 over 1y, 0.3% of budgetFOX TUCSON THEATRE FOUNDATION: $2,500 over 1y, 0.1% of budgetTUCSON FESTIVAL OF BOOKS: $2,100 over 2y, 0.1% of budgetYOUTH ON THEIR OWN: $2,000 over 1y, 0.0% of budgetTUCSON HEBREW ACADEMY: $2,000 over 2y, 0.0% of budgetPima Council on Aging: $2,000 over 2y, 0.0% of budgetWORLD JEWISH CONGRESS (AMERICAN SECTION) INC: $1,700 over 3y, 0.0% of budgetTHE JEWISH HISTORY MUSEUM: $1,540 over 2y, 0.2% of budgetAmphitheater Public Schools Foundation Inc: $1,500 over 3y, 0.2% of budgetArizona Diaper Bank: $1,000 over 1y, 0.1% of budgetArts for All Inc: $1,000 over 2y, 0.1% of budgetBoys to Men Tucson Inc: $1,000 over 1y, 0.2% of budgetLAPTOPS 4 LEARNING: $1,000 over 1y, 0.5% of budgetTherapeutic Riding of Tucson Inc: $1,000 over 1y, 0.2% of budgetSouthwest Folklife Alliance Inc: $750 over 1y, 0.0% of budgetVIVA PIMA: $500 over 1y, 0.1% of budgetArizona Daily Star Sportsmens Fund Inc: $500 over 1y, 0.1% of budgetIntegrative Touch: $500 over 1y, 0.2% of budgetGIRL SCOUTS OF SOUTHERN ARIZONA: $300 over 1y, 0.0% of budgetMONTAUK FIRE DEPARTMENT: $200 over 2y, 0.0% of budgetUNITED SERVICE ORGANIZATIONS INC: $100 over 1y, 0.0% of budgetCOAST GUARD FOUNDATION INC: $50 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.

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 …The Hs Lopez Family F…United Way of Tucson …Arizona Community Fou…Connie Hillman Family…Jewish Community Foun…Marshall FoundationThe Diane and Bruce H…Angel Charity for Chi…Frederick Gardner Cot…The Stocker FoundationLucille E Williams Fo…
Community Foundation for Southern ArizonaAZ47.8× affinity21 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation for Southern Arizona · The Hs Lopez Family Foundation · United Way of Tucson and Southern Arizona Inc · Arizona Community Foundation · Connie Hillman Family Foundation · Jewish Community Foundation of Southern Arizona · Marshall Foundation · The Diane and Bruce Halle Foundation · Angel Charity for Children Inc · Frederick Gardner Cottrell Foundation · The Stocker Foundation · Lucille E Williams 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 Diamond Foundation funds: left to right is the share of its income from government, bottom to top the share from Diamond Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–75%
    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 Diamond Foundation?

    Find your warmest path to Diamond 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.

    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 52 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 Diamond’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