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Thomas C and Jo Ann Succop Family Charitable Foundation at a glance

· Private foundation

Thomas C and Jo Ann Succop Family Charitable 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.

$222k
Granted FY2025still arriving
9
Grants FY2025still arriving
6
States reached
$52k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Animals$278kEducation$151kHuman Services$150kEnvironment$138kInternational$135kCivil Rights$55kCommunity Improvement$29kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k4 grants · $36k
  • $10k–50k3 grants · $83k
  • $50k–250k2 grants · $103k
$22,000
Median grant
6
States reached
$4.4M
Total assets
Largest grants
RecipientAmount
INSTITTUE FOR COMMON POWER$51,500
PORTLAND TRAILS$51,500
AUDUBON SOCIETY OF WESTERN PENNSYLVANIA$36,000
THE AMERICAN HIMALAYAN FOUNDATION$25,000
TREE PITTSBURGH$22,000
MAINE PUBLIC$9,000
KSFR SANT FE PUBLIC RADIO$9,000
Individual grant recipient$9,000
ESSENTIAL PUBLIC MEDIA INC$9,000
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 (FY21–23, $95k) land where the poverty rate runs at 11%, 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%JEWISH FAMILY AND COMMUNITY SERVICES: $35k → 11%HIMALAYAN FOUNDATION USA: $30k → 11%HIMALAYAN FOUNDATION USA: $30k → 11%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.

54%of every dollar goes to organizations it has funded before.
$643k · 4 repeat orgs$555k to everyone else

Grantees it renews have grown median revenue +24% since the first grant, against +16% for those funded once.

4 repeat relationships: 3 still active in FY2025, 1 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

4
9

Total granted

$643k
$445k

Median revenue growth · since first grant

+24%
+16%

Still filing today

75%
56%

New vs renewed · share of each year

In FY2025, 51% of grant dollars renewed an existing relationship; $110k went to new ones.

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

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

’20’21’22’23’24’25
EnvironmentHuman ServicesInternationalEducationCivil RightsArts & CultureOther
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

  • AS
    AUDUBON SOCIETY OF WESTERN PA
    3× · 2020–2025 · $314k · revenue +28%
  • PT
    PORTLAND TRAILS
    4× · 2022–2025 · $189k · revenue +24%
  • TA
    The American Himalayan Foundation
    2× · 2024–2025 · $80k · revenue 0%

Funded once

  • GF
    GRANT FOUNDATION INCgraduated
    one grant, 2023 · $80k · revenue +276%
  • TP
    THE PARK SCHOOL OF BALTIMORE INC
    one grant, 2021 · $60k · revenue -21%
  • WS
    WAYNFLETE SCHOOLgraduated
    one grant, 2021 · $60k · revenue +39%
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
Phipps Conservatory and Botanical Gardens Inc

Phipps' mission is to inspire and educate all with the beauty and importance of plants, to advance sustainability and promote human and environmental well-being through action and research, and to celebrate its historic glasshouse.

Environment
2
The Kennebec Land Trust

The kennebec land trust (klt) works cooperatively with landowners and communities to conserve the forests, lakes, streams, wetlands, fields, and wildlife that help define central maine. klt protects and stewards land permanently, offers…

Environment
3
Partnership for the National Trails System Inc

Our mission is to connect, strengthen and amplify a vibrant network of partners united to preserve, enhance and promote national historic & scenic trails.

Environment
4
National Audubon Society Inc

We work towards a future where birds thrive across the americas because audubon is a powerful, diverse, and ever-growing force for conservation. (continued on schedule o).

Environment
5
The Holden Arboretum

The holden arboretum connects people with the wonder, beauty, and value of trees and plants, to inspire action for healthy communities.

Environment
6
Maine Audubon Society

Maine Audubon works to conserve Maine's wildlife and habitat by engaging people of all ages in education, conservation, and action. We are helping the people of Maine become the nation's most informed and effective stewards of wildlife and…

Environment
7
Minnesota Landscape Arboretum Foundation

To support charitable, plant-based scientific, and educational activities exclusively for the benefit of the minnesota landscape arboretum of the university of minnesota

Environment
8
Pittsburgh Botanic Garden

Pittsburgh Botanic Garden inspires people to value plants, garden design and the natural world by cultivating plant collections of the Allegheny Plateau and temperate regions, creating display gardens, conducting educational programs and…

Youth Development
9
The Mountain Institute Inc

Advance the well- being of mountain people and conservation of mountain environments.

—
10
Massachusetts Audubon Society Inc

To protect the nature of massachusetts for people and for wildlife through education, land conservation, advocacy, scientific research, and habitat stewardship/restoration.

Environment
11
Island Press

Island press creates, publishes and promotes powerful ideas and solutions that help transform local, national, and global environmental practices and policies in order to better ecological and human well-being.

Environment
12
Health in Harmony

Health in Harmony's mission is to reverse tropical rainforest deforestation for planetary health.

Health
How this is measured
The grantee most central to the portfolio’s shape is Friends of the Pittsburgh Urban Forest; the most unlike its peers is Maryland Lynching Memorial Project 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

11 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. 11 of the 19 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.

1
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
10/11
Grantees still filing
5/11
Grew since first funded

Where the money sits, by cause and then by grantee

AUDUBON SOCIETY OF WESTERN PA: $313,500 · EnvironmentAUDUBON SOCIETY OF WESTERN PAPORTLAND TRAILS: $189,000 · EnvironmentPORTLAND TRAILSFRIENDS OF THE PITTSBURGH URBAN FOREST: $22,000 · EnvironmentJEWISH FAMILY & COMMUNITY SERVICES: $55,000 · OtherJEWISH FAMILY & COMMUN…INSTITTUE FOR COMMON POWER: $51,500 · OtherINSTITTUE FOR COMMON P…Individual grant recipient: $40,000 · OtherIndividual grant recip…INDIAN ISLAND SCHOOL: $30,990 · OtherINDIAN ISLAND SCHOOLNORTHEAST TOWSON IMPROVEMENT ASSOCIATION INCORPORATED: $29,390 · OtherNORTHEAST TOWSON IMPRO…Individual grant recipient: $9,000 · OtherKSFR SANT FE PUBLIC RADIO: $9,000 · OtherESSENTIAL PUBLIC MEDIA INC: $9,000 · OtherThe American Himalayan Foundation: $80,000 · InternationalThe American Hi…GRANT FOUNDATION INC: $80,000 · InternationalGRANT FOUNDATIO…THE PARK SCHOOL OF BALTIMORE INC: $60,000 · EducationTHE PARK SC…WAYNFLETE SCHOOL: $60,000 · EducationWAYNFLETE S…HIMALAYAN FOUNDATION-USA: $60,000 · Human ServicesJEWISH FAMILY AND CHILDREN'S SERVICE OF PITTSBURGH: $35,000 · Human ServicesMARYLAND LYNCHING MEMORIAL PROJECT INC: $55,000 · Civil RightsMaine Public Broadcasting Corporation: $9,000 · Arts & Culture
Environment$524,500Other$233,880International$160,000Education$120,000Human Services$95,000Civil Rights$55,000Arts & Culture$9,000

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 budgetAUDUBON SOCIETY OF WESTERN PA: $313,500 over 3y, 13% of budgetPORTLAND TRAILS: $189,000 over 4y, 6.8% of budgetThe American Himalayan Foundation: $80,000 over 2y, 1.8% of budgetGRANT FOUNDATION INC: $80,000 over 1y, 1.5% of budgetTHE PARK SCHOOL OF BALTIMORE INC: $60,000 over 1y, 0.1% of budgetWAYNFLETE SCHOOL: $60,000 over 1y, 0.3% of budgetMARYLAND LYNCHING MEMORIAL PROJECT INC: $55,000 over 1y, 40% of budgetJEWISH FAMILY AND CHILDREN'S SERVICE OF PITTSBURGH: $35,000 over 1y, 0.3% of budgetFRIENDS OF THE PITTSBURGH URBAN FOREST: $22,000 over 1y, 0.5% of budgetMaine Public Broadcasting Corporation: $9,000 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.

Morgan Stanley Global…Vanguard Charitable E…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN9.2× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · 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 Thomas C and Jo Ann Succop Family Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from Thomas C and Jo Ann Succop Family Charitable Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%3%13%28%50%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →
    no gov moneyreceives it· size = income
    2get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–25%
    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 Thomas C and Jo Ann Succop Family Charitable Foundation?

    Find your warmest path to Thomas C and Jo Ann Succop Family Charitable 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 19 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 Thomas C and Jo Ann Succop Family’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