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· Private foundation

Peter & Masha Plotkin 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.

$190k
Granted FY2025still arriving
17
Grants FY2025still arriving
2
States reached
$19k
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, FY2017 to 2024.

Arts & Culture$490kEducation$342kHealth$45kYouth Development$20kHuman Services$20k
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k3 grants · $15k
  • $10k–50k14 grants · $175k
$10,000
Median grant
2
States reached
$3.2M
Total assets
Largest grants
RecipientAmount
WESTSIDE NEIGHBORHOOD SCHOOL$19,000
OTIS COLLEGE$15,000
INNER-CITY ARTS$15,000
FAIRBURN YOUTH ASSOCIATION$15,000
LOS ANGELES LEADERSHIP FOUNDATION$15,000
HUMA HOUSE INC$15,000
CHILDREN CAN ACHIEVE$11,000
FRIENDS OF VOCAL MUSIC$10,000
LAGUNA HILLS HIGH SCHOOL$10,000
APA MUSIC THEATER GUILD$10,000
TRABUCO HILLS HIGH SCHOOL$10,000
KIDSINGERS$10,000
LAGUNA COLLEGE OF ART AND DESIGN$10,000
IRVINE VALLEY COLLEGE FOUNDATION$10,000
VISTAMAR SCHOOL$7,000
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 (FY21–25, $13k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%EXCEPTIONAL CHILDREN'S FOUNDATION: $5k → 14%EXCEPTIONAL CHILDREN'S FOUNDATION: $5k → 14%EXCEPTIONAL CHILDREN'S FOUNDATION: $3k → 14%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.

77%of every dollar goes to organizations it has funded before.
$847k · 22 repeat orgs$259k to everyone else

22 repeat relationships: 14 still active in FY2025, 8 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

22
22

Total granted

$847k
$215k

Median revenue growth · since first grant

+9%
+29%

Still filing today

59%
32%

New vs renewed · share of each year

In FY2025, 77% of grant dollars renewed an existing relationship; $44k 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
EducationArts & CultureHuman ServicesPhilanthropyOther
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

  • LC
    LAGUNA COLLEGE OF ART & DESIGN
    8× · 2017–2025 · $87k · revenue +322%
  • IA
    INNER-CITY ARTS
    5× · 2019–2025 · $82k · revenue +27%
  • K
    KIDSINGERS
    6× · 2019–2025 · $57k · revenue +26%

Funded once

  • TH
    THE H E ART PROJECT dba ARTWORXLA
    one grant, 2023 · $22k · revenue -14%
  • IG
    Individual grant recipient
    one grant, 2022 · $20k
  • WC
    WISH CHARTER SCHOOL
    one grant, 2019 · $15k
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
San Francisco High School of the Arts

San Francisco Arts and Science Academy (ASA) provides TK5 grade students with a strong foundation in the arts, language, math, and science, fostering creativity, curiosity, and character development. Our bilingual, hands-on curriculum…

Education
2
Renaissance Arts Academy

Tk-12 charter public school focused on educational equity and success for all students with a priority on tradionally underserved populations.

Education
3
Los Angeles Academy of Arts and Enterprise

To prepare students for leadership in the arts and business; where creativity, academic knowledge and financial literacy are essential for success. we are providing an education that integrates the four lenses of learning: academics, arts,…

Education
4
Hollywood Schoolhouse Inc

Hollywood Schoolhouse knows, values, and encourages fearless curiosity. Through a blended program of innovative academics and structured learning, our diverse community inspires students to be academically strong, artistically proud,…

Education
5
All About Kids La
Philanthropy
6
California Institute of Contemporary Art
—
7
White Hall Arts Academy Foundation

White Hall Arts Academy Foundations mission is to use the power of the arts to educate empower and encourage low income communities. We strive to bridge the gap between mental health social emotional learning arts development and creative…

Arts & Culture
8
International Eye Los Angeles

Empower and heal communities through art

Arts & Culture
9
Maranatha High School

Maranatha high school is a christ-centered, evangelical college preparatory school that celebrates the whole student by equipping hearts and minds to reflect god's glory through academics, as well as the arts, athletics, and service. we…

Education
10
Oakland School for the Arts

To establish and maintain a positive school culture in which all students are motivated to learn, support each other, and have structures in place that assist students in accessing their full artistic and academic potential.

Education
11
Da Vinci Schools La County

Da Vinci Schools: LA County consists of a public charter school, RISE High, which exists to provide our students an individualized education through the coalescence of their personal and professional goals, their interests, and the…

Education
12
California Institute of the Arts

Calarts is a multidisciplinary community of artists. our ongoing educational endeavor is grounded in openness, experimentation, critical engagement, and creative freedom. through artistic practice, we transform ourselves, each other, and…

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Inner-City Arts; the most unlike its peers is Fair Burn Youth Association. 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

22 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. 22 of the 47 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)
3
Early backer (in before they grew)
21/22
Grantees still filing
12/22
Grew since first funded

Where the money sits, by cause and then by grantee

TRABUCO HILLS HIGH SCHOOL: $77,000 · OtherTRABUCO HILLS HIGH SCHOOLCHILDREN CAN ACHIEVE INC: $48,000 · OtherCHILDREN CAN ACHIEVE INCLAGUNA HILLS HIGH SCHOOL: $43,000 · OtherLAGUNA HILLS HIGH SCHOOLAPA MUSIC THEATER GUILD: $40,000 · OtherAPA MUSIC THEATER GUILDFAIR BURN YOUTH ASSOCIATION: $31,000 · OtherFAIR BURN YOUTH ASSOCIATIONIndividual grant recipient: $20,000 · OtherLAGUNA HILLS HIGH SCHOOL ART DEPARTMENT: $20,000 · OtherMUSICAL THEATER GUILD: $17,000 · Other+19 more: $183,000 · Other+19 moreAZUSA PACIFIC UNIVERSITY: $88,000 · EducationAZUSA PACIFIC UNIVERSITYLAGUNA COLLEGE OF ART & DESIGN: $87,000 · EducationLAGUNA COLLEGE OF ART & DESIGNLOS ANGELES LEADERSHIP FOUNDATION: $62,000 · EducationLOS ANGELES LEADERSHIP FOUNDATIONWESTCHESTER ENRICHED SCIENCE MAGNETS SCHOOL PTO: $41,000 · EducationWESTCHESTER ENRICHED SCIENCE MAGNETS …VISTAMAR SCHOOL: $20,000 · EducationVISTAMAR SCHOOLWISEBURN EDUCATION FOUNDATION: $20,000 · EducationWISEBURN EDUCATION FOUNDATIONWESTSIDE NEIGHBORHOOD SCHOOL: $19,000 · Education+3 more: $28,500 · Education+3 moreINNER-CITY ARTS: $82,000 · Arts & CultureINNER-CITY ARTSKIDSINGERS: $57,000 · Arts & CultureKIDSINGERSHuma House Inc: $27,000 · Arts & CultureHuma House IncTHE H E ART PROJECT dba ARTWORXLA: $22,000 · Arts & CultureTHE H E ART PROJECT d…Apa Musical Theater Guild Fund: $10,000 · Arts & Culture+2 more: $10,500 · Arts & CultureROTARY CLUB OF PLAYA VENICE SUNRISE: $20,000 · Human ServicesEXCEPTIONAL CHILDREN'S FOUNDATION: $12,500 · Human ServicesIrvine Valley College Foundation: $20,000 · Philanthropy
Other$479,000Education$365,500Arts & Culture$208,500Human Services$32,500Philanthropy$20,000

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 budgetAZUSA PACIFIC UNIVERSITY: $88,000 over 4y, 0.0% of budgetLAGUNA COLLEGE OF ART & DESIGN: $87,000 over 8y, 0.1% of budgetINNER-CITY ARTS: $82,000 over 5y, 0.8% of budgetLOS ANGELES LEADERSHIP FOUNDATION: $62,000 over 5y, 12% of budgetKIDSINGERS: $57,000 over 6y, 5.6% of budgetWESTCHESTER ENRICHED SCIENCE MAGNETS SCHOOL PTO: $41,000 over 3y, 14% of budgetFAIR BURN YOUTH ASSOCIATION: $31,000 over 3y, 4.7% of budgetHuma House Inc: $27,000 over 2y, 4.8% of budgetTHE H E ART PROJECT dba ARTWORXLA: $22,000 over 1y, 1.3% of budgetROTARY CLUB OF PLAYA VENICE SUNRISE: $20,000 over 2y, 17% of budgetVISTAMAR SCHOOL: $20,000 over 3y, 0.1% of budgetIrvine Valley College Foundation: $20,000 over 2y, 1.0% of budgetWISEBURN EDUCATION FOUNDATION: $20,000 over 2y, 6.6% of budgetWESTSIDE NEIGHBORHOOD SCHOOL: $19,000 over 1y, 0.1% of budgetEXCEPTIONAL CHILDREN'S FOUNDATION: $12,500 over 3y, 0.0% of budgetWESTSIDE INNOVATIVE SCHOOL HOUSE INC: $11,000 over 1y, 0.1% of budgetFriends of the Academy of Music Inc: $10,000 over 1y, 6.0% of budgetApa Musical Theater Guild Fund: $10,000 over 1y, 9.7% of budgetENCORE THEATRE GROUP: $5,500 over 2y, 0.4% of budgetGRAMMY MUSEUM FOUNDATION INC: $5,000 over 1y, 0.1% of budgetA PLACE CALLED HOME: $3,000 over 1y, 0.1% 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 AZUSA PACIFIC UNIVERSITY ↗
  • Who funds LAGUNA COLLEGE OF ART & DESIGN ↗
  • Who funds INNER-CITY ARTS ↗
  • Who funds LOS ANGELES LEADERSHIP FOUNDATION ↗
  • Who funds KIDSINGERS ↗
  • Who funds WESTCHESTER ENRICHED SCIENCE MAGNETS SCHOOL PTO ↗
  • Who funds FAIR BURN YOUTH ASSOCIATION ↗
  • Who funds Huma House Inc ↗
  • Who funds THE H E ART PROJECT dba ARTWORXLA ↗
  • Who funds ROTARY CLUB OF PLAYA VENICE SUNRISE ↗
  • Who funds VISTAMAR SCHOOL ↗
  • Who funds Irvine Valley College Foundation ↗
  • Who funds WISEBURN EDUCATION FOUNDATION ↗
  • Who funds WESTSIDE NEIGHBORHOOD SCHOOL ↗
  • Who funds EXCEPTIONAL CHILDREN'S FOUNDATION ↗
  • Who funds WESTSIDE INNOVATIVE SCHOOL HOUSE INC ↗
  • Who funds Friends of the Academy of Music Inc ↗
  • Who funds Apa Musical Theater Guild Fund ↗
  • Who funds LAX COASTAL EDUCATION FOUNDATION ↗

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.

California Community FoundationCA13.3× affinity5 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: California Community Foundation · Sempra Foundation · The Blackbaud Giving Fund · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Peter & Masha Plotkin Foundation funds: left to right is the share of its income from government, bottom to top the share from Peter & Masha Plotkin Foundation. Bigger dots raise more.

2025
’20’21’22’23’24’25
no gov · 00%6%25%56%100%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–15%
    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 Peter & Masha Plotkin Foundation?

    Find your warmest path to Peter & Masha Plotkin 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 47 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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