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· Private foundation

John M Rivers Jr Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$94k
Granted FY2025still arriving
33
Grants FY2025still arriving
5
States reached
$10k
Largest
01What it funds
0195% classified

What it funded, over time

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

Education$290kArts & Culture$255kRecreation & Sports$199kReligion$68kPhilanthropy$65kHealth$25kEnvironment$16kHuman Services$14kOther$0
02FY2025 · 33 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k32 grants · $84k
  • $10k–50k1 grant · $10k
$2,000
Median grant
5
States reached
$6.0M
Total assets
Largest grants
RecipientAmount
Charleston Parks Conservancy$10,000
Individual grant recipient$5,000
Confederate Home and College$5,000
Historic Charleston Foundation$5,000
Camden Military Academy$5,000
Charleston Library Society$5,000
Preservation Society of Charleston$5,000
Church of the Good Shepherd$5,000
Charleston Symphony Orchestra$5,000
BYN Mellon Charitable Gift Fund -$5,000
First Tee of Greater Charleston$5,000
Charleston Museum$5,000
Drayton Hall Foundation$2,750
Middleton Place Foundation$2,500
Individual grant recipient$2,500
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 (FY23–24, $6k) land where the poverty rate runs at 9%, against an area that typically sits at 12%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 12%YEAMANS HALL FOUNDATION: $5k → 9%YEAMANS HALL FOUNDATION: $1k → 9%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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 5% of John M Rivers Jr Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 87% of the giving stays in SC; by stated purpose, 80%.

John M Rivers Jr Foundationlessmore of its giving
Placed by recipient address · 5.2% directed abroad (not shown)
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

92%of every dollar goes to organizations it has funded before.
$891k · 40 repeat orgs$77k to everyone else

Grantees it renews have grown median revenue +29% since the first grant, against +11% for those funded once.

40 repeat relationships: 22 still active in FY2025, 18 since wound down; 10 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

40
22

Total granted

$891k
$54k

Median revenue growth · since first grant

+29%
+11%

Still filing today

53%
18%

New vs renewed · share of each year

In FY2025, 74% of grant dollars renewed an existing relationship; $24k 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
Arts & CultureEducationEnvironmentHousing & ShelterPhilanthropyHealthOther
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

  • CA
    CAROLINA ART ASSOCIATION DBA GIBBES MUSEUM OF ART
    5× · 2020–2024 · $60k · revenue +108%
  • SF
    SPOLETO FESTIVAL USA INC
    5× · 2020–2024 · $50k · revenue +102%
  • CM
    CAMDEN MILITARY ACADEMY
    6× · 2020–2025 · $42k · revenue +5%

Funded once

  • CC
    CHATTOOGA CLUB EMPLOYEE SCHOLARSHIP
    one grant, 2021 · $10k
  • CO
    COLLEGE OF CHAS TENNIS FACILITY
    one grant, 2022 · $10k
  • UB
    UNC BUSINESS SCHOOL
    one grant, 2024 · $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
The South Carolina Historical Society

The schs mission is to expand, preserve, and make accessible our invaluable collection, and to encourage interest and pride in the rich history of our state.

Arts & Culture
2
Charleston Stage Company Inc

Charleston stage's vision is to be a leading professional theater company, engaging the broad community through high quality productions, with leading artists, and excellent production values. the organization provides the community access…

Arts & Culture
3
South Carolina Public Interest Foundation
Crime & Legal
4
Center for Heirs' Property Preservation

(See Schedule O)

Crime & Legal
5
Charleston Collegiate School

Charleston Collegiate Schools mission is to inspire students to become passionate, lifelong learners by empowering them with knowledge, creativity, curiosity and confidence to mindfully embrace the opportunities of tomorrow.

—
6
Chamber Music Charleston

Chamber Music Charleston is dedicated to developing the audience for classical music through chamber music concerts and educational programs of the highest caliber.

Arts & Culture
7
Brookgreen Gardens

Brookgreen gardens was formed in 1931 to collect, preserve and exhibit american sculpture, and the flora and fauna native to south carolina.

Environment
8
The Palmetto Trust for Historic Preservation Inc

To protect and preserve buildings of architectural and historial significance in South Carolina.

Arts & Culture
9
Charleston School of Law

The mission of the charleston school of law foundation inc is to encourage and assist the study, teaching, promoting and research of the rule of law in charleston, south carolina and all related subject areas as determined by the board of…

Education
10
College of Charleston Foundation

The Mission of the College of Charleston Foundation is to promote programs of education, research, student development, and faculty development for the exclusive benefit of the College of Charleston.

Education
11
Charleston Academy of Music

The Charleston Academy of Music is committed to providing access to exceptional music education, performance and community outreach to all, regardless of age, skill, gender, ethnicity or income.

Arts & Culture
12
The Carolina Trust
Philanthropy
How this is measured
The grantee most central to the portfolio’s shape is Lowcountry Land Trust Inc; the most unlike its peers is Bny Mellon Charitable Gift Fund. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

31 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 31 of the 73 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)
31/31
Grantees still filing
20/31
Grew since first funded

Where the money sits, by cause and then by grantee

ASHLEY HALL SCHOOL: $201,000 · OtherASHLEY HALL SCHOOLCHURCH OF THE GOOD SHEPHERD INC: $54,000 · OtherCHURCH OF THE GOOD SHEPHERD INCCOLLEGE OF CHARLESTON OF THE ARTS: $50,000 · OtherCOLLEGE OF CHARLESTON OF THE ARTSCOLLEGE OF CHAS MENS BASKETBALL: $45,000 · OtherCOLLEGE OF CHAS MENS BASKETBALLCOLLEGE OF CHAS WOMEN'S BASKETBALL: $41,000 · OtherCOLLEGE OF CHAS WOMEN'S BASKETBALLThe Preservation Society of Charleston Inc: $27,500 · OtherCOLLEGE OF CHAS SCHOOL AVERY INSTIT: $25,000 · Other+46 more: $206,350 · Other+46 moreCAROLINA ART ASSOCIATION DBA GIBBES MUSEUM OF ART: $59,500 · Arts & CultureCAROLINA ART ASS…SPOLETO FESTIVAL USA INC: $50,000 · Arts & CultureSPOLETO FESTIVAL…CHARLESTON SYMPHONY ORCHESTRA: $10,000 · Arts & CultureCHARLESTON SYMPH…Middleton Place Foundation: $9,500 · Arts & CultureMiddleton Place …Colour of Music: $6,000 · Arts & CultureThe Charleston Museum: $5,000 · Arts & Culture+1 more: $950 · Arts & CultureCAMDEN MILITARY ACADEMY: $42,000 · EducationThe Charleston Promise Neighborhood: $12,500 · EducationBoys & Girls Club of The Plateau Inc: $6,000 · EducationCHOATE ROSEMARY HALL FOUNDATION INCORPORATED: $2,700 · Education+1 more: $2,000 · EducationTRIDENT UNITED WAY: $50,000 · PhilanthropyBNY MELLON CHARITABLE GIFT FUND: $15,000 · PhilanthropyThe Charleston Parks Conservancy: $32,132 · EnvironmentLOWCOUNTRY LAND TRUST INC: $4,000 · EnvironmentCHARLESTON WATERKEEPER: $3,000 · Environment+1 more: $250 · EnvironmentVISION TO LEARN: $15,000 · HealthFIRST TEE GREATER CHARLESTON: $7,500 · Recreation & Sports
Other$649,850Arts & Culture$140,950Education$65,200Philanthropy$65,000Environment$39,382Health$15,000Recreation & Sports$7,500

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 budgetCAROLINA ART ASSOCIATION DBA GIBBES MUSEUM OF ART: $59,500 over 5y, 0.5% of budgetSPOLETO FESTIVAL USA INC: $50,000 over 5y, 0.2% of budgetTRIDENT UNITED WAY: $50,000 over 5y, 0.2% of budgetCAMDEN MILITARY ACADEMY: $42,000 over 6y, 0.1% of budgetThe Charleston Parks Conservancy: $32,132 over 5y, 0.6% of budgetThe Preservation Society of Charleston Inc: $27,500 over 6y, 0.2% of budgetHISTORIC CHARLESTON FOUNDATION: $16,500 over 6y, 0.1% of budgetVISION TO LEARN: $15,000 over 3y, 0.0% of budgetBNY MELLON CHARITABLE GIFT FUND: $15,000 over 2y, 0.0% of budgetCharleston Library Society: $13,500 over 6y, 0.1% of budgetThe Charleston Promise Neighborhood: $12,500 over 5y, 0.2% of budgetCHARLESTON SYMPHONY ORCHESTRA: $10,000 over 6y, 0.1% of budgetMiddleton Place Foundation: $9,500 over 6y, 0.1% of budgetFIRST TEE GREATER CHARLESTON: $7,500 over 4y, 0.1% of budgetColour of Music: $6,000 over 6y, 0.6% of budgetBoys & Girls Club of The Plateau Inc: $6,000 over 4y, 0.1% of budgetLOWCOUNTRY LAND TRUST INC: $4,000 over 6y, 0.1% of budgetCHARLESTON WATERKEEPER: $3,000 over 3y, 0.1% of budgetCHOATE ROSEMARY HALL FOUNDATION INCORPORATED: $2,700 over 3y, 0.0% of budgetLOWCOUNTRY COMMUNITY CHAPLAINCY: $2,500 over 5y, 1.2% of budgetALLEN-CHASE FOUNDATION DBA EAGLEBROOK SCHOOL: $2,000 over 2y, 0.0% of budgetTHE CHARLESTON FORUM: $1,000 over 1y, 2.0% of budgetGLENVILLE-CASHIERS RESCUE SQUAD INC: $1,000 over 1y, 0.0% of budgetSTAR GOSPEL MISSION: $1,000 over 1y, 0.0% of budgetSHELBURNE MUSEUM INC: $950 over 5y, 0.0% of budgetOne-Eighty Place: $500 over 1y, 0.0% of budgetHighlands-Cashiers Land Trust Inc: $250 over 1y, 0.0% of budgetASSOCIATION FOR THE BLIND AND VISUALLY IMPAIRED SOUTH CAROLINA: $100 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 CAROLINA ART ASSOCIATION DBA GIBBES MUSEUM OF ART ↗
  • Who funds SPOLETO FESTIVAL USA INC ↗
  • Who funds TRIDENT UNITED WAY ↗
  • Who funds CAMDEN MILITARY ACADEMY ↗
  • Who funds The Charleston Parks Conservancy ↗
  • Who funds The Preservation Society of Charleston Inc ↗
  • Who funds HISTORIC CHARLESTON FOUNDATION ↗
  • Who funds VISION TO LEARN ↗
  • Who funds BNY MELLON CHARITABLE GIFT FUND ↗
  • Who funds Charleston Library Society ↗
  • Who funds The Charleston Promise Neighborhood ↗
  • Who funds CHARLESTON SYMPHONY ORCHESTRA ↗
  • Who funds Middleton Place Foundation ↗
  • Who funds FIRST TEE GREATER CHARLESTON ↗
  • Who funds Colour of Music ↗
  • Who funds Boys & Girls Club of The Plateau Inc ↗
  • Who funds CONFEDERATE HOME AND COLLEGE ↗

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.

Coastal Community Foundation of South Carolina IncSC35.4× affinity15 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Coastal Community Foundation of South Carolina Inc · Post and Courier Foundation · Henry & Sylvia Yaschik Foundation Inc · Guffey Family Foundation · The Joanna Foundation · John Winthrop Charitable Trust · Patrick Family Foundation · Pathfinder Foundation Inc · Dominion Energy Charitable Foundation · Richard and Susan Leadem Family · Atlantic Services of Charleston Cha · Roy and Amanda Maybank Charitable 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 John M Rivers Jr Foundation funds: left to right is the share of its income from government, bottom to top the share from John M Rivers Jr 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%25%50%75%100%share of the org’s income from government →median 9%
  • Shelburne Museum Inc: 9% of income from government
  • Choate Rosemary Hall Foundation Incorporated: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
11report 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 John M Rivers Jr Foundation?

Find your warmest path to John M Rivers Jr 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 73 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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