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New York · Private foundation

The Sonia Alden Foundation Inc Co Dr Cathy Friedman

Its FY2025 filing reports that it accepted unsolicited grant applications.

$46k
Granted FY2025(still arriving)
9
Grants FY2025
19
Organizations funded FY2024
32%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$3,000
Largest grant, FY2025
$12,250
Organizations funded a year
17 to 73
FY2018 to FY2024
States reached, FY2025
6
Total assets, FY2025
$1.2M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 32% of the organizations The Sonia Alden Foundation Inc Co Dr Cathy Friedman funded were first-time grantees, receiving 30% of its grant dollars.

New vs renewed · share of each year

In FY2024, 70% of grant dollars renewed an existing relationship; $20k went to new ones.

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

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

’18’19’20’21’22’23’24
HealthArts & CultureCivil RightsYouth DevelopmentInternationalReligionOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving9$46k22%
FY202419$65k32%
FY202322$65k14%
FY202226$67k0%
FY202117$41k18%
FY202026$102k15%
FY201962$153k32%
FY201873$133k34%
94% classified

What it funded, over time

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

Arts & Culture$583kReligion$66kEducation$45kCivil Rights$22kHealth$19kYouth Development$18kMembership Benefit$17kScience & Tech$5kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WI
NY
MA
NJ
CT
RI
CA
NE
MO
VA
TN
NC
DC
AL
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
South Florida Symphony Orchestra Inc$199,04682%
Mastervoices Inc$105,15091%
Hoff-Barthelson Music School$97,00090%
Congregation Rodeph Shalom Inc$51,8903n/a
Miami City Ballet Inc$46,09660%
Florida Grand Opera Inc$37,21272%
Southern Jewish Resource Network Inc$20,00023%
Washington University$20,00080%
The Actors' Fund of America$16,80040%
Scarsdale Synagogue$12,2503n/a
Show all 71 grantees
All grantees of The Sonia Alden Foundation Inc Co Dr Cathy Friedman by total granted
GranteeTotal grantedYearsShare of their budget
South Florida Symphony Orchestra Inc$199,04682%
Mastervoices Inc$105,15091%
Hoff-Barthelson Music School$97,00090%
Congregation Rodeph Shalom Inc$51,8903n/a
Miami City Ballet Inc$46,09660%
Florida Grand Opera Inc$37,21272%
Southern Jewish Resource Network Inc$20,00023%
Washington University$20,00080%
The Actors' Fund of America$16,80040%
Scarsdale Synagogue$12,2503n/a
Camp Live Oak Inc$12,00042%
New York University$11,00010%
Fractured Atlas Inc$9,00030%
The Fort Lauderdale Children's Theatre Inc$7,77521%
Royal Dames of Cancer Research Inc$7,64531%
Claudia Schreier Choreography Inc$7,500125%
Lynn University Inc$5,50040%
Triple Shadow Inc$5,000137%
The Perlman Music Program Inc$3,00020%
National Scleroderma Foundation Inc$2,50010%
American Museum of Natural History$2,22540%
North Kingstown Community Chorus Inc$2,0001n/a
Island City Stage Inc$1,80030%
Citymeals-On-Wheels$1,40240%
Pet Rescue Incorporated$1,30030%
The Jewish Museum$1,19050%
The Salvation Army$1,0006n/a
Simon Wiesenthal Center Inc$95040%
The Philharmonic Symphony Society of Ny Inc$85050%
New York Historical Society$83550%
Museum of the City of New York$80030%
Calvary Hospital Inc$75040%
American Friends of Magen David Adom$60030%
American Society for Yad Vashem Inc$55040%
Southern Poverty Law Center Inc$52520%
American Heart Association Inc$50010%
Children's Tumor Foundation$50010%
Mustard Seed Society Inc$50013%
Youth Service League Inc$50010%
Adler Aphasia Center$50010%
Landmark West Inc$45020%
The New York Public Library Astor Lenox and Tilden Foundations$42520%
Pompano Baseball Inc$35021%
New York-Presbyterian Fund Inc$35020%
Friends of Yad Sarah Inc$35030%
Gold Coast Jazz Society Inc$34010%
Guttmacher Institute Inc$30030%
The Shriners' Hospital for Children$30020%
The Mabel Mercer Foundation Inc$30010%
The Kennedy Collective Inc$30020%
The League of Professional Theatre Women New York Inc$29510%
New York Public Radio$28640%
Solomon R Guggenheim Foundation$28420%
Education Through Music Inc$28020%
The Episcopal Actors' Guild of America Inc$25030%
Hillel the Foundation for Jewish Campus Life$25010%
Smithsonian Institution$20020%
American Jewish Committee$20020%
Macular Degeneration Association$20020%
Seafarers' House Inc$20020%
Father Flanagan's Boys' Home$11420%
Gay Men's Health Crisis Inc$10510%
The Doe Fund Inc$10010%
Arthritis Foundation Inc$10010%
God's Love We Deliver Inc$10010%
Humane World for Animals Inc$6320%
Fountain House Inc$5010%
The American Society for the Prevention of Cruelty to Animals$4010%
Services and Advocacy for Gay Lesbian Bisexual and Transgender Elders Inc$3510%
St Jude Children's Research Hospital Inc$2010%
Retired Public Employees Associationinc$1210%

What it could do for these grantees

Plus 65 recipients with no EIN on record ($95k), not named here.

Where it is load-bearing

The Sonia Alden Foundation Inc Co Dr Cathy Friedman supplied at least a quarter of the budget for 2 of its grantees at some point. The chart plots its 67 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSouth Florida Symphony Orchestra Inc: $199,046 over 8y, 2.2% of budgetMastervoices Inc: $105,150 over 9y, 1.0% of budgetHoff-Barthelson Music School: $97,000 over 9y, 0.4% of budgetMiami City Ballet Inc: $46,096 over 6y, 0.1% of budgetFlorida Grand Opera Inc: $37,212 over 7y, 2.2% of budgetSouthern Jewish Resource Network Inc: $20,000 over 2y, 3.1% of budgetWashington University: $20,000 over 8y, 0.0% of budgetThe Actors' Fund of America: $16,800 over 4y, 0.0% of budgetCamp Live Oak Inc: $12,000 over 4y, 1.8% of budgetNew York University: $11,000 over 1y, 0.0% of budgetFractured Atlas Inc: $9,000 over 3y, 0.0% of budgetThe Fort Lauderdale Children's Theatre Inc: $7,775 over 2y, 0.6% of budgetRoyal Dames of Cancer Research Inc: $7,645 over 3y, 1.0% of budgetClaudia Schreier Choreography Inc: $7,500 over 1y, 25% of budgetLynn University Inc: $5,500 over 4y, 0.0% of budgetTriple Shadow Inc: $5,000 over 1y, 37% of budgetThe Perlman Music Program Inc: $3,000 over 2y, 0.1% of budgetNational Scleroderma Foundation Inc: $2,500 over 1y, 0.1% of budgetAmerican Museum of Natural History: $2,225 over 4y, 0.0% of budgetIsland City Stage Inc: $1,800 over 3y, 0.2% of budgetCitymeals-On-Wheels: $1,402 over 4y, 0.0% of budgetPet Rescue Incorporated: $1,300 over 3y, 0.1% of budgetThe Jewish Museum: $1,190 over 5y, 0.0% of budgetSimon Wiesenthal Center Inc: $950 over 4y, 0.0% of budgetThe Philharmonic Symphony Society of Ny Inc: $850 over 5y, 0.0% of budgetNew York Historical Society: $835 over 5y, 0.0% of budgetMuseum of the City of New York: $800 over 3y, 0.0% of budgetCalvary Hospital Inc: $750 over 4y, 0.0% of budgetAmerican Friends of Magen David Adom: $600 over 3y, 0.0% of budgetAmerican Society for Yad Vashem Inc: $550 over 4y, 0.0% of budgetSouthern Poverty Law Center Inc: $525 over 2y, 0.0% of budgetAmerican Heart Association Inc: $500 over 1y, 0.0% of budgetChildren's Tumor Foundation: $500 over 1y, 0.0% of budgetMustard Seed Society Inc: $500 over 1y, 3.2% of budgetYouth Service League Inc: $500 over 1y, 0.2% of budgetAdler Aphasia Center: $500 over 1y, 0.0% of budgetLandmark West Inc: $450 over 2y, 0.1% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $425 over 2y, 0.0% of budgetPompano Baseball Inc: $350 over 2y, 0.8% of budgetNew York-Presbyterian Fund Inc: $350 over 2y, 0.0% of budgetFriends of Yad Sarah Inc: $350 over 3y, 0.0% of budgetGold Coast Jazz Society Inc: $340 over 1y, 0.1% of budgetGuttmacher Institute Inc: $300 over 3y, 0.0% of budgetThe Shriners' Hospital for Children: $300 over 2y, 0.0% of budgetThe Mabel Mercer Foundation Inc: $300 over 1y, 0.2% of budgetThe Kennedy Collective Inc: $300 over 2y, 0.0% of budgetThe League of Professional Theatre Women New York Inc: $295 over 1y, 0.2% of budgetNew York Public Radio: $286 over 4y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 67.

Nonprofits that may fit its grantmaking

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 of Broward IncFL19.6× affinity7 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation of Broward Inc · Funding Arts Broward Inc · The New York Community Trust · Jewish Communal Fund · Jpmorgan Chase Foundation · Morgan Stanley Global Impact Funding Trust Inc · Network for Good · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund

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.

Compare The Sonia Alden Foundation Inc Co Dr Cathy Friedman with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Sonia Alden Foundation Inc Co Dr Cathy Friedman?

Find your warmest path to The Sonia Alden Foundation Inc Co Dr Cathy Friedman 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.

About The Sonia Alden Foundation Inc Co Dr Cathy Friedman

How much does The Sonia Alden Foundation Inc Co Dr Cathy Friedman give?
The Sonia Alden Foundation Inc Co Dr Cathy Friedman reported 9 grants totaling $46,250 in its FY2025 IRS filing. It funded between 17 and 73 organizations a year over FY2018 to FY2024.
What does The Sonia Alden Foundation Inc Co Dr Cathy Friedman fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (73%), Religion (8%), Education (6%).
Who are The Sonia Alden Foundation Inc Co Dr Cathy Friedman's largest grantees?
By total granted over FY2017 to FY2025: South Florida Symphony Orchestra Inc ($199k), Mastervoices Inc ($105k), Hoff-Barthelson Music School ($97k).
Does The Sonia Alden Foundation Inc Co Dr Cathy Friedman fund new organizations?
In FY2024, 32% of the organizations it funded were first-time grantees.
Does The Sonia Alden Foundation Inc Co Dr Cathy Friedman accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as The Sonia Alden Foundation Inc Co Dr Cathy Friedman?
Its strongest co-funders, measured against what their size predicts, include Community Foundation of Broward Inc, Funding Arts Broward Inc, The New York Community Trust.
Where is The Sonia Alden Foundation Inc Co Dr Cathy Friedman based?
The Sonia Alden Foundation Inc Co Dr Cathy Friedman is based in NY.

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 136 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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