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Delaware · Private foundation

Konstantin Family 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.

$29k
Granted FY2025(still arriving)
59
Grants FY2025
51
Organizations funded FY2024
8%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$350
Largest grant, FY2025
$2,000
Organizations funded a year
41 to 52
FY2018 to FY2024
States reached, FY2025
13
Total assets, FY2025
$80k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 8% of the organizations Konstantin Family Foundation funded were first-time grantees, receiving 5% of its grant dollars.

New vs renewed · share of each year

In FY2024, 95% of grant dollars renewed an existing relationship; $1k went to new ones.

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

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

’19’20’21’22’23’24
Arts & CultureEnvironmentEducationHuman ServicesAnimalsReligionOther
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 arriving57$29k11%
FY202451$24k8%
FY202352$24k12%
FY202249$17k4%
FY202148$28k6%
FY202050$30k18%
FY201948$49k25%
FY201841$39kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Arts & Culture$53kHuman Services$45kEducation$41kFood & Nutrition$22kHealth$19kHousing & Shelter$17kPhilanthropy$12kEnvironment$10kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

AK
MN
IL
NY
MA
PA
CT
RI
CA
VA
MD
TN
SC
DC
MS
TX
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 73 grantees
All grantees of Konstantin Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The Open Door Shelter Inc$17,05080%
Bridgeport Rescue Mission Inc$11,20080%
Laurel House Inc$11,15080%
The Food Bank of Lower Fairfield County Inc$10,50080%
Connecticut Foodshare Inc$10,25080%
Person to Person Inc$9,50080%
The Carver Inc$8,75080%
Family & Children's Agency Inc$6,50080%
Mississippi State University Foundation Inc$6,30080%
Kids in Crisis Inc$6,25080%
Boston Early Music Festival Inc$5,25080%
Association of the Free Library and Reading Room of Rowayton Inc$5,25070%
David M Hunt Library & School Association Inc$5,25081%
Norwalk Parent Teacher Organization$5,0001n/a
Earthplace Inc$5,00080%
Arkhaios Cultural Heritage and Archaeology Events$4,9007n/a
Mary D Fund Inc$4,10080%
New York Public Radio$3,90080%
Americares Free Clinics Inc$3,75080%
University of South Carolina Educational Foundation$3,50080%
Human Services Council Inc$3,50080%
Norwalkstamford Grassroots Tennis & Education Inc$3,25080%
Aston Magna Foundation$3,25080%
Historic Rowayton Inc$3,15081%
Rowayton Arts Center$3,15080%
Falls Village Volunteer Fire Dept$3,05081%
Wnet$2,95080%
Block Island Historical Society$2,75080%
Connecticut Public Broadcasting Inc$2,65080%
Rowayton Civic Association Inc$2,60080%
Norwalk Land Trust Inc$2,45071%
Close Encounters With Music$1,90070%
Friends of the Office of State Archaeology Inc$1,9008n/a
Falls Village-Canaan Historical Soc$1,80081%
Norwalk Education Foundation Inc$1,65061%
Norwalk Sister City Project Inc$1,65060%
Crescendo Inc$1,65070%
Planned Parenthood Federation of America Inc$1,50020%
Star Foundation Inc$1,50040%
Sickle Cell Disease Foundation of California$1,5001n/a
Grow Against Poverty Incorporated$1,4503n/a
Lockwood-Mathews Mansion Museum of Norwalk Inc$1,45060%
Mahaiwe Performing Arts Center Inc$1,40060%
New Britain Museum of American Art Inc$1,40060%
The Institute for American Indian Studies$1,35060%
Wadsworth Atheneum Museum of Art$1,35060%
Aucilla Research Institute Inc$1,25050%
Pet Animal Welfare Society of Connecticut Inc$1,25030%
Florence Griswold Museum Inc$1,25060%
Threshold to New Life$1,25030%
Norwalk Tree Alliance$1,20040%
Greens Ledge Light Preservation Society Inc$1,00030%
Filling in the Blanks Inc$1,0001n/a
Sacred Heart University Incorporated$1,00030%
Alzheimer's Disease & Related Disorders Association Inc$1,00010%
East Norwalk Blue Inc$85040%
Norwalk Community College Foundation Inc$80020%
Institute of Nautical Archaeology$70030%
The Young Men's and Young Women's Hebrew Association$50010%
National Public Radio Inc$50010%
Dream Project Inc$50010%
Sandy Hook Promise Foundation$50010%
The Conservation Fund a Nonprofit Corporation$50010%
Los Angeles Regional Food Bank$50010%
Triplex Cinema Inc$45020%
Project Sage Inc$30010%
The Stamford Hospital$25010%
The Twin Lakes Association of Salisbury Inc$2501n/a
United Church of Rowayton Inc$2501n/a
Westport Country Playhouse Inc$25010%
Knoxville Symphony Society Incorporated$25010%
Block Island Conservancy Inc$25010%
Mattatuck Historical Society$20010%

What it could do for these grantees

Plus 10 recipients with no EIN on record ($21k), not named here.

Where it is load-bearing

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Open Door Shelter Inc: $17,050 over 8y, 0.1% of budgetBridgeport Rescue Mission Inc: $11,200 over 8y, 0.1% of budgetLaurel House Inc: $11,150 over 8y, 0.3% of budgetThe Food Bank of Lower Fairfield County Inc: $10,500 over 8y, 0.1% of budgetConnecticut Foodshare Inc: $10,250 over 8y, 0.0% of budgetPerson to Person Inc: $9,500 over 8y, 0.0% of budgetThe Carver Inc: $8,750 over 8y, 0.0% of budgetFamily & Children's Agency Inc: $6,500 over 8y, 0.0% of budgetMississippi State University Foundation Inc: $6,300 over 8y, 0.0% of budgetKids in Crisis Inc: $6,250 over 8y, 0.0% of budgetBoston Early Music Festival Inc: $5,250 over 8y, 0.1% of budgetAssociation of the Free Library and Reading Room of Rowayton Inc: $5,250 over 7y, 0.3% of budgetDavid M Hunt Library & School Association Inc: $5,250 over 8y, 0.6% of budgetEarthplace Inc: $5,000 over 8y, 0.1% of budgetMary D Fund Inc: $4,100 over 8y, 0.3% of budgetNew York Public Radio: $3,900 over 8y, 0.0% of budgetAmericares Free Clinics Inc: $3,750 over 8y, 0.0% of budgetUniversity of South Carolina Educational Foundation: $3,500 over 8y, 0.0% of budgetHuman Services Council Inc: $3,500 over 8y, 0.0% of budgetNorwalkstamford Grassroots Tennis & Education Inc: $3,250 over 8y, 0.1% of budgetAston Magna Foundation: $3,250 over 8y, 0.3% of budgetHistoric Rowayton Inc: $3,150 over 8y, 1.3% of budgetRowayton Arts Center: $3,150 over 8y, 0.3% of budgetFalls Village Volunteer Fire Dept: $3,050 over 8y, 0.6% of budgetWnet: $2,950 over 8y, 0.0% of budgetBlock Island Historical Society: $2,750 over 8y, 0.2% of budgetConnecticut Public Broadcasting Inc: $2,650 over 8y, 0.0% of budgetRowayton Civic Association Inc: $2,600 over 8y, 0.3% of budgetNorwalk Land Trust Inc: $2,450 over 7y, 0.5% of budgetClose Encounters With Music: $1,900 over 7y, 0.1% of budgetFalls Village-Canaan Historical Soc: $1,800 over 8y, 0.9% of budgetNorwalk Education Foundation Inc: $1,650 over 6y, 1.4% of budgetNorwalk Sister City Project Inc: $1,650 over 6y, 0.2% of budgetCrescendo Inc: $1,650 over 7y, 0.2% of budgetPlanned Parenthood Federation of America Inc: $1,500 over 2y, 0.0% of budgetStar Foundation Inc: $1,500 over 4y, 0.3% of budgetLockwood-Mathews Mansion Museum of Norwalk Inc: $1,450 over 6y, 0.0% of budgetMahaiwe Performing Arts Center Inc: $1,400 over 6y, 0.0% of budgetNew Britain Museum of American Art Inc: $1,400 over 6y, 0.0% of budgetThe Institute for American Indian Studies: $1,350 over 6y, 0.1% of budgetWadsworth Atheneum Museum of Art: $1,350 over 6y, 0.0% of budgetAucilla Research Institute Inc: $1,250 over 5y, 0.2% of budgetPet Animal Welfare Society of Connecticut Inc: $1,250 over 3y, 0.0% of budgetFlorence Griswold Museum Inc: $1,250 over 6y, 0.0% of budgetThreshold to New Life: $1,250 over 3y, 0.4% of budgetNorwalk Tree Alliance: $1,200 over 4y, 0.1% of budgetGreens Ledge Light Preservation Society Inc: $1,000 over 3y, 0.1% of budgetSacred Heart University Incorporated: $1,000 over 3y, 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 65.

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.

Fairfield County's Community Foundation IncCT31.5× affinity14 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fairfield County's Community Foundation Inc · Connecticut Humanities Council Inc · New Canaan Community Foundation Inc · Ibm International Foundation · The Scripps Family Fund for Education and the Arts · The Goodnow Fund · The Near and Far Association Inc · Horizon Foundation Inc · Grace Jones Richardson Testamentary Trust C/O Piedmont Trust Co · Newman's Own Foundation · Maurice Goodman Foundation Inc Tr · The Aiello Charitable 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 Konstantin Family Foundation with peer funders

About Konstantin Family Foundation

How much does Konstantin Family Foundation give?
Konstantin Family Foundation reported 59 grants totaling $28,750 in its FY2025 IRS filing. It funded between 41 and 52 organizations a year over FY2018 to FY2024.
What does Konstantin Family Foundation fund?
By grant dollars over FY2018 to FY2025, its largest causes are Arts & Culture (22%), Human Services (19%), Education (17%).
Who are Konstantin Family Foundation's largest grantees?
By total granted over FY2018 to FY2025: The Open Door Shelter Inc ($17k), Bridgeport Rescue Mission Inc ($11k), Laurel House Inc ($11k).
Does Konstantin Family Foundation fund new organizations?
In FY2024, 8% of the organizations it funded were first-time grantees.
Does Konstantin Family 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 Konstantin Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Fairfield County's Community Foundation Inc, Connecticut Humanities Council Inc, New Canaan Community Foundation Inc.
Where is Konstantin Family Foundation based?
Konstantin Family 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 84 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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