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Delaware · Private foundation

Sonder 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.

$83k
Granted FY2025(still arriving)
2
Grants FY2025
2
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$43,100
Largest grant, FY2025
$43,100
Organizations funded a year
2 to 32
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$1.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations Sonder Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 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
Arts & CultureEducationHuman ServicesPhilanthropyHealthCrime & 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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving2$83k0%
FY20242$67k0%
FY202326$80k4%
FY202226$103k19%
FY202128$90k7%
FY202031$105k6%
FY201930$118k13%
FY201832$115k13%
100% classified

What it funded, over time

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

Education$349kArts & Culture$231kHuman Services$81kInternational$70kCrime & Legal$32kPhilanthropy$28kHealth$16kHousing & Shelter$13kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
IL
NY
MA
PA
NJ
CT
CA
MD
SC
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.

Show all 42 grantees
All grantees of Sonder Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Teach for America Inc$125,00090%
Black Public Media Inc$95,20082%
Montclair Child Development Center Inc$70,00070%
Montclair Free Public Library Foundation Inc$68,500713%
The Newark Museum Association$50,00050%
The Montclair Art Museum$40,00070%
Montclair Scholarship Fund$33,25072%
Rutgers University Foundation$30,00050%
Gates Philanthropy Partners$25,00010%
Grounds for Sculpture Inc$20,00030%
University of California Berkeley Foundation$20,00030%
William J Brennan Center for Justice Inc$18,00070%
Partners for Women and Justice Inc$13,25070%
IMANI Inc$13,06540%
Her Justice Inc$12,25060%
Montclair Film Festival Inc$12,00070%
Sharron Miller's Academy for the Performing Arts Inc$11,25070%
Montclair Ambulance Unit$11,05071%
The Michael J Fox Foundation for Parkinson's Research$10,05010%
Medecins Sans Frontieres USA Inc$10,00010%
YWCA Metropolitan Chicago$7,50020%
Montclair Shared Housing Association Inc$5,25070%
Berkeley Law Foundation$5,00052%
Montclair Emergency Services for Hope Inc$4,75052%
Human Needs Food Pantry Inc$4,75070%
Regents of the University of California at Berkeley$4,5002n/a
Friends of Yogi Inc$4,00020%
Casa Marianella Inc$3,00040%
Save The Children Federation Inc$2,60910%
Water Missions International$2,50010%
Harlem Lacrosse and Leadership Corporation$2,00020%
Succeed2gether Inc$1,75070%
West Tisbury Library Foundation Inc$1,55070%
YMCA of Montclair NEW JERSEY$1,04320%
Juvenile Law Center$1,00010%
Montclair State University Foundation Inc$1,00010%
Pro Publica Inc$1,00010%
Friends of Anderson Park$90071%
Montclair Historical Society$80070%
St Luke Church$5002n/a
Montclair African American Heritage Foundation$50012%
Center for Independence of the Disabled in New York Inc$50010%

What it could do for these grantees

Plus 8 recipients with no EIN on record ($95k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Sonder Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTeach for America Inc: $125,000 over 9y, 0.0% of budgetBlack Public Media Inc: $95,200 over 8y, 1.6% of budgetMontclair Child Development Center Inc: $70,000 over 7y, 0.1% of budgetMontclair Free Public Library Foundation Inc: $68,500 over 7y, 13% of budgetThe Newark Museum Association: $50,000 over 5y, 0.1% of budgetThe Montclair Art Museum: $40,000 over 7y, 0.2% of budgetMontclair Scholarship Fund: $33,250 over 7y, 2.0% of budgetRutgers University Foundation: $30,000 over 5y, 0.0% of budgetGates Philanthropy Partners: $25,000 over 1y, 0.2% of budgetGrounds for Sculpture Inc: $20,000 over 3y, 0.1% of budgetUniversity of California Berkeley Foundation: $20,000 over 3y, 0.0% of budgetWilliam J Brennan Center for Justice Inc: $18,000 over 7y, 0.0% of budgetPartners for Women and Justice Inc: $13,250 over 7y, 0.3% of budgetIMANI Inc: $13,065 over 4y, 0.5% of budgetHer Justice Inc: $12,250 over 6y, 0.1% of budgetMontclair Film Festival Inc: $12,000 over 7y, 0.2% of budgetSharron Miller's Academy for the Performing Arts Inc: $11,250 over 7y, 0.4% of budgetMontclair Ambulance Unit: $11,050 over 7y, 1.0% of budgetThe Michael J Fox Foundation for Parkinson's Research: $10,050 over 1y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $10,000 over 1y, 0.0% of budgetYWCA Metropolitan Chicago: $7,500 over 2y, 0.0% of budgetMontclair Shared Housing Association Inc: $5,250 over 7y, 0.3% of budgetBerkeley Law Foundation: $5,000 over 5y, 1.5% of budgetMontclair Emergency Services for Hope Inc: $4,750 over 5y, 1.8% of budgetHuman Needs Food Pantry Inc: $4,750 over 7y, 0.1% of budgetFriends of Yogi Inc: $4,000 over 2y, 0.3% of budgetCasa Marianella Inc: $3,000 over 4y, 0.1% of budgetSave The Children Federation Inc: $2,609 over 1y, 0.0% of budgetWater Missions International: $2,500 over 1y, 0.0% of budgetHarlem Lacrosse and Leadership Corporation: $2,000 over 2y, 0.0% of budgetSucceed2gether Inc: $1,750 over 7y, 0.1% of budgetWest Tisbury Library Foundation Inc: $1,550 over 7y, 0.2% of budgetYMCA of Montclair NEW JERSEY: $1,043 over 2y, 0.0% of budgetJuvenile Law Center: $1,000 over 1y, 0.0% of budgetMontclair State University Foundation Inc: $1,000 over 1y, 0.0% of budgetPro Publica Inc: $1,000 over 1y, 0.0% of budgetFriends of Anderson Park: $900 over 7y, 0.7% of budgetMontclair Historical Society: $800 over 7y, 0.1% of budgetMontclair African American Heritage Foundation: $500 over 1y, 2.4% of budgetCenter for Independence of the Disabled in New York Inc: $500 over 1y, 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 40.

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.

Investors Foundation IncNJ26.9× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Investors Foundation Inc · Partners for Health Inc · Community Foundation of New Jersey · The Silver Family Foundation Inc · The Hyde and Watson Foundation · Princeton Area Community Foundation Inc · Montclair Foundation Inc · Susan V Bershad Charitable Fund Inc · The Whitehill Foundation a New Jersey Nonprofit Corporation · JOHN J & ROSE CALI FAMILY FOUNDATION co CALI FUTURES · The Lazard Charitable Foundation · Falcon Foundation Inc

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 Sonder Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Sonder Foundation?

Find your warmest path to Sonder 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.

About Sonder Foundation

How much does Sonder Foundation give?
Sonder Foundation reported 2 grants totaling $83,100 in its FY2025 IRS filing. It funded between 2 and 32 organizations a year over FY2018 to FY2024.
What does Sonder Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (41%), Arts & Culture (27%), Human Services (10%).
Who are Sonder Foundation's largest grantees?
By total granted over FY2017 to FY2025: Teach for America Inc ($125k), Black Public Media Inc ($95k), Montclair Child Development Center Inc ($70k).
Does Sonder Foundation fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does Sonder Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Sonder Foundation?
Its strongest co-funders, measured against what their size predicts, include Investors Foundation Inc, Partners for Health Inc, Community Foundation of New Jersey.
Where is Sonder Foundation based?
Sonder Foundation is based in DE.

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 52 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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