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· Private foundation

Robert & Isabelle Bass Fdn Inc

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.

$210k
Granted FY2025still arriving
15
Grants FY2025still arriving
1
States reached
$25k
Largest
01What it funds
0186% classified

What it funded, over time

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

Arts & Culture$899kYouth Development$91kEnvironment$40kCrime & Legal$21kHuman Services$10kEducation$3kOther$0
02FY2025 · 15 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k2 grants · $15k
  • $10k–50k13 grants · $195k
$10,000
Median grant
1
States reached
$2.3M
Total assets
Largest grants
RecipientAmount
FIELD MUSEUM$25,000
LYRIC OPERA OF CHICAGO$25,000
GRANT PARK MUSIC FESTIVAL$20,000
CHICAGO SYMPHONY ORCHESTRA$20,000
CHICAGO OPERA THEATER$20,000
MERIT SCHOOL OF MUSIC$12,500
Individual grant recipient$12,500
HUBBARD STREET DANCE CHICAGO$10,000
HARRIS THEATER FOR MUSIC AND DANCE$10,000
NOIS PERFORMING ARTS ORGANIZATION$10,000
Individual grant recipient$10,000
JOFFREY BALLET$10,000
Individual grant recipient$10,000
D-COMPOSED$9,500
CLASSICAL MUSIC CHICAGO$5,000
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:

Dollar for dollar, its grants (FY19–25) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 100% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%STEPPENWOLF THEATRE COMPANY: $15k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FIELD MUSEUM: $25k → 14%FORWARD MOMENTUM: $13k → 14%FORWARD MOMENTUM: $10k → 14%FORWARD MOMENTUM: $10k → 14%SILK ROAD RISING: $10k → 14%CEDILLE RECORDS: $10k → 14%CEDILLE RECORDS: $10k → 14%CEDILLE RECORDS: $10k → 14%STORYCATCHERS THEATRE: $18k → 14%STORYCATCHERS THEATRE: $15k → 14%STORYCATCHERS THEATRE: $15k → 14%STORYCATCHERS THEATRE: $13k → 14%NOIS PERFORMING ARTS ORGANIZATION: $10k → 14%STORYCATCHERS THEATRE: $10k → 14%PLAYMAKERS LABORATORY THEATRE: $10k → 14%THIRD COAST PERCUSSIONS: $10k → 14%MERIT SCHOOL OF MUSIC: $13k → 14%LYRIC OPERA OF CHICAGO: $30k → 14%LYRIC OPERA OF CHICAGO: $30k → 14%LYRIC OPERA OF CHICAGO: $25k → 14%LYRIC OPERA OF CHICAGO: $25k → 14%LYRIC OPERA OF CHICAGO: $25k → 14%LYRIC OPERA OF CHICAGO: $25k → 14%LYRIC OPERA OF CHICAGO: $25k → 14%CHICAGO SYMPHONY ORCHESTRA: $20k → 14%CHICAGO SYMPHONY ORCHESTRA: $16k → 14%CHICAGO SYMPHONY ORCHESTRA: $15k → 14%CHICAGO SYMPHONY ORCHESTRA: $15k → 14%CHICAGO SYMPHONY ORCHESTRA: $12k → 14%CHICAGO OPERA THEATER: $20k → 14%CHICAGO OPERA THEATER: $20k → 14%GRANT PARK MUSIC FESTIVAL: $20k → 14%CHICAGO OPERA THEATER: $20k → 14%GRANT PARK MUSIC FESTIVAL: $20k → 14%CHICAGO OPERA THEATER: $20k → 14%CHICAGO OPERA THEATER: $20k → 14%GRANT PARK MUSIC FESTIVAL: $20k → 14%CHICAGO OPERA THEATER: $20k → 14%GRANT PARK MUSIC FESTIVAL: $20k → 14%GRANT PARK MUSIC FESTIVAL: $15k → 14%CHICAGO OPERA THEATER: $15k → 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.

96%of every dollar goes to organizations it has funded before.
$1.1M · 20 repeat orgs$50k to everyone else

Grantees it renews have grown median revenue +15% since the first grant, against -8% for those funded once.

20 repeat relationships: 14 still active in FY2025, 6 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

20
6

Total granted

$1.1M
$40k

Median revenue growth · since first grant

+15%
-8%

Still filing today

80%
67%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $10k 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
Arts & CultureEnvironmentYouth DevelopmentInternationalCrime & LegalOther
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

  • FM
    FIELD MUSEUM OF NATURAL HISTORY
    7× · 2019–2025 · $175k · revenue +28%
  • GP
    GRANT PARK ORCHESTRAL ASSOCIATION
    7× · 2019–2025 · $110k · revenue +95%
  • CS
    Chicago Symphony Orchestra
    7× · 2019–2025 · $98k · revenue +75%

Funded once

  • GI
    Gilloury Institute
    one grant, 2019 · $10k · revenue -8%
  • PL
    PLAYMAKERS LABORATORY THEATRE
    one grant, 2019 · $10k · revenue -34%
  • VG
    Victory Gardens Theater
    one grant, 2019 · $8k · revenue -85%
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
Chamber Opera of Chicago
—
2
Chicago Sinfonietta Inc

Chicago Sinfonietta is a professional orchestra dedicated to modeling and promoting diversity, inclusion, and both racial and cultural equity in the arts through the universal language of symphonic music. Our core values are built around…

Arts & Culture
3
Chicago City Theatre Company dba Joel Hall Dancers & Center

To enrich the lives of our community through dance education and performance while developing Chicago's native talent pool in a welcoming environment that celebrates multiculturalism & ethnic diversity.

Arts & Culture
4
Lookingglass Theatre Company

Lookingglass theatre company is a national leader in the creation and presentation of innovative, cutting-edge theatrical work. lookingglass interweaves movement, circus arts and narrative in original and captivating ways. guided by an…

Arts & Culture
5
Houston Grand Opera Association Inc

The mission of HGO is to enrich our diverse community through the art of opera. We will do so by creating, curating, exploring, and producing outstanding experiences centered around the human voice.(Continued on Schedule O)

Arts & Culture
6
Constellation Performing Arts

Constellation is a performing arts presenter with an emphasis on forward- thinking practices, particularly in the areas of jazz, improvised, experimental, and contemporary classical music.

Arts & Culture
7
Collaborative Arts Institute of Chicago
Arts & Culture
8
Chicago Harp Quartet
—
9
The Chicago High School for the Arts

The chicago high school for the arts (chiarts) develops the next generation of diverse, artistically promising scholar-artists through intensive pre-professional training in the arts, combined with a comprehensive college preparatory…

Education
10
Writers Theatre Inc

Writers Theatre (WT) is a literary organization that operates not-for-profit theatres in Glencoe, Illinois. The Writers Theatre mission is to create intimate connections through astonishing performances and innovative programs; activating…

Arts & Culture
11
Auditorium Theatre of Roosevelt University Inc

The Auditorium Theatre of Roosevelt University ("The Auditorium"), an Illinois not-for-profit corporation, is committed to presenting the finest in international, cultural, community and educational programming to Chicago and to the…

Arts & Culture
12
Illinois Philharmonic Orchestra

Illinois Philharmonic Orchestra's mission as a professional orchestra is to utilize the universal expression of music to create profound, inspiring, and personal connections between the people and communities of Chicagos Southland.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Illinois Humanities Council Inc; the most unlike its peers is Reading Between the Lines Nfp. 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

21 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. 21 of the 27 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)
2
Early backer (in before they grew)
21/21
Grantees still filing
9/21
Grew since first funded

Where the money sits, by cause and then by grantee

Lyric Opera of Chicago: $185,000 · Arts & CultureLyric Opera of ChicagoFIELD MUSEUM OF NATURAL HISTORY: $175,000 · Arts & CultureFIELD MUSEUM OF NATURAL HISTORYCHICAGO OPERA THEATER: $135,000 · Arts & CultureCHICAGO OPERA THEATERGRANT PARK ORCHESTRAL ASSOCIATION: $110,000 · Arts & CultureGRANT PARK ORCHESTRAL ASSOCIATIONChicago Symphony Orchestra: $97,500 · Arts & CultureChicago Symphony OrchestraHUBBARD STREET DANCE CHICAGO: $30,000 · Arts & Culture+10 more: $136,500 · Arts & Culture+10 moreStorycatchers: $70,000 · OtherStorycatchersIndividual grant recipient: $45,000 · OtherIndividual grant reci…Individual grant recipient: $42,500 · OtherIndividual grant reci…Individual grant recipient: $37,500 · OtherIndividual grant reci…D-COMPOSED: $14,500 · OtherD-COMPOSED+2 more: $10,000 · OtherHealthy Schools Campaign: $40,000 · EnvironmentGIRLS INC OF CHICAGO: $21,000 · Youth DevelopmentREADING BETWEEN THE LINES NFP: $21,000 · Crime & LegalGilloury Institute: $10,000 · International
Arts & Culture$869,000Other$219,500Environment$40,000Youth Development$21,000Crime & Legal$21,000International$10,000

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 budgetLyric Opera of Chicago: $185,000 over 7y, 0.1% of budgetFIELD MUSEUM OF NATURAL HISTORY: $175,000 over 7y, 0.1% of budgetCHICAGO OPERA THEATER: $135,000 over 7y, 0.9% of budgetGRANT PARK ORCHESTRAL ASSOCIATION: $110,000 over 7y, 0.3% of budgetChicago Symphony Orchestra: $97,500 over 7y, 0.0% of budgetStorycatchers: $70,000 over 5y, 1.0% of budgetHealthy Schools Campaign: $40,000 over 4y, 0.4% of budgetHUBBARD STREET DANCE CHICAGO: $30,000 over 3y, 0.2% of budgetMERIT SCHOOL OF MUSIC: $27,500 over 3y, 0.1% of budgetGIRLS INC OF CHICAGO: $21,000 over 5y, 0.4% of budgetREADING BETWEEN THE LINES NFP: $21,000 over 4y, 2.4% of budgetSTEPPENWOLF THEATRE COMPANY: $20,000 over 2y, 0.1% of budgetClassical Music Chicago: $17,500 over 4y, 1.1% of budgetTHE JOFFREY BALLET: $15,000 over 2y, 0.0% of budgetMUSIC AND DANCE THEATER CHICAGO INC: $15,000 over 2y, 0.1% of budgetILLINOIS HUMANITIES COUNCIL INC: $12,000 over 3y, 0.1% of budgetNOIS PERFORMING ARTS ORGANIZATION NFP: $10,000 over 1y, 6.0% of budgetVictory Gardens Theater: $7,500 over 1y, 0.2% of budgetHOLTER MUSEUM OF ART: $2,000 over 1y, 0.4% 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 Lyric Opera of Chicago ↗
  • Who funds FIELD MUSEUM OF NATURAL HISTORY ↗
  • Who funds CHICAGO OPERA THEATER ↗
  • Who funds GRANT PARK ORCHESTRAL ASSOCIATION ↗
  • Who funds Chicago Symphony Orchestra ↗
  • Who funds Storycatchers ↗
  • Who funds Healthy Schools Campaign ↗
  • Who funds HUBBARD STREET DANCE CHICAGO ↗
  • Who funds MERIT SCHOOL OF MUSIC ↗
  • Who funds GIRLS INC OF CHICAGO ↗
  • Who funds READING BETWEEN THE LINES NFP ↗
  • Who funds STEPPENWOLF THEATRE COMPANY ↗
  • Who funds Classical Music Chicago ↗
  • Who funds THE JOFFREY BALLET ↗
  • Who funds MUSIC AND DANCE THEATER CHICAGO INC ↗
  • Who funds ILLINOIS HUMANITIES COUNCIL INC ↗
  • Who funds Gilloury Institute ↗
  • Who funds NOIS PERFORMING ARTS ORGANIZATION NFP ↗
  • Who funds PLAYMAKERS LABORATORY THEATRE ↗
  • Who funds Victory Gardens Theater ↗
  • Who funds HOLTER MUSEUM OF ART ↗

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.

Polk Bros Foundation IncIL26× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Polk Bros Foundation Inc · The Chicago Community Trust · Ncrc Community Development Fund Inc · John D and Catherine T Macarthur Foundation · Lloyd a Fry Foundation · Richard and Mary L Gray Foundation · The Poetry Foundation · John R Halligan Charitable Fund · Illinois Humanities Council Inc · The Irving Harris Foundation · Arie and Ida Crown Memorial · Jewish Federation of Metropolitan Chicago

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 Robert & Isabelle Bass Fdn Inc funds: left to right is the share of its income from government, bottom to top the share from Robert & Isabelle Bass Fdn Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%23%45%68%90%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 · 0–90%
    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 Robert & Isabelle Bass Fdn Inc?

    Find your warmest path to Robert & Isabelle Bass Fdn Inc 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 27 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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