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Massachusetts · Private foundation

Howard & Katherine Aibel Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$291k
Granted FY2024(still arriving)
74
Grants FY2024
81
Organizations funded FY2023
19%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$750
Largest grant, FY2024
$30,000
Organizations funded a year
81 to 97
FY2018 to FY2023
States reached, FY2024
9
Total assets, FY2024
$3.2M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 19% of the organizations Howard & Katherine Aibel Foundation funded were first-time grantees, receiving 10% of its grant dollars.

New vs renewed · share of each year

In FY2023, 90% of grant dollars renewed an existing relationship; $35k went to new ones.

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

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

’19’20’21’22’23
Arts & CultureEducationHuman ServicesYouth DevelopmentHealthCivil RightsOther
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
FY2024still arriving74$291k4%
FY202381$346k19%
FY202286$332k2%
FY202191$401k8%
FY202095$241k4%
FY201997$170k22%
FY201891$121kn/a
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

Arts & Culture$683kEducation$444kHealth$177kFood & Nutrition$126kReligion$115kPublic Safety & Disaster$101kEnvironment$53kYouth Development$44kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

NH
IL
NY
MA
IA
OH
PA
NJ
CT
CA
UT
VA
MD
AZ
KS
DC
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Poly Prep Country Day School$130,00070%
Fund for Lachat Town Farm Inc$120,000448%
Suffolk University$79,50060%
My Friend Abby Inc$79,500612%
Kerem Shalom Inc$65,0007n/a
Boston Modern Orchestra Project Inc$56,50061%
Huntington Theatre Co Inc$51,75060%
Community Therapeutic Day School Inc$47,60070%
Westport Country Playhouse Inc$47,50070%
Unitarian Universalist Congregation in Westport Inc$40,0007n/a
Show all 89 grantees
All grantees of Howard & Katherine Aibel Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Poly Prep Country Day School$130,00070%
Fund for Lachat Town Farm Inc$120,000448%
Suffolk University$79,50060%
My Friend Abby Inc$79,500612%
Kerem Shalom Inc$65,0007n/a
Boston Modern Orchestra Project Inc$56,50061%
Huntington Theatre Co Inc$51,75060%
Community Therapeutic Day School Inc$47,60070%
Westport Country Playhouse Inc$47,50070%
Unitarian Universalist Congregation in Westport Inc$40,0007n/a
Person to Person Inc$33,20060%
Radius Ensemble Incorporated$32,500510%
New York University$31,50020%
Aspetuck Land Trust$31,00061%
Music for Youth Inc$27,00079%
Community Access to the Arts Inc$22,50050%
Castle of Our Skins Inc$22,00063%
Moca Ct Inc$20,00013%
Concord Scout House Inc$20,00067%
Metropolitan College of New York$18,00020%
Sacred Heart University Incorporated$15,00070%
New Gallery Concert Series Inc$13,50069%
Actors' Shakespeare Project$13,50060%
Uncornered Inc$13,00060%
The Connecticut Players Foundation Inc D/B/A Long Wharf Theatre$12,80070%
American Bar Foundation$12,53860%
Cultural Alliance of Fairfield County Inc$11,00071%
The Jordan Porco Foundation$10,00012%
Earthplace Inc$5,50060%
Connecticut Foodshare Inc$5,50070%
Lyric Stage Company of Boston Inc$5,00020%
Planned Parenthood Federation of America Inc$4,95060%
Goodspeed Opera House Foundation Inc$4,75070%
Sierra Club Foundation$4,50060%
Natural Resources Defense Council Inc$4,25050%
Musiconnects Inc$4,00040%
Unitarian Universalist Association$3,5007n/a
Young Mens Christian Association of Westport/Weston Ct Inc$3,50070%
Federation for Jewish Philanthropy of Upper Fairfield County$3,28070%
Harvard Magazine Inc$3,25070%
United States Fund for Unicef$3,00070%
Visiting Nurse & Hospice of Fairfield County Inc$3,00070%
Trustees of Boston University$3,00060%
Weston Warm-Up Fund Inc$3,00071%
Broadway Caresequity Fights AIDS Inc$2,50050%
Convergence Ensemble Inc$2,5004n/a
The Susan Fund Inc$2,50051%
Boston Youth Symphony Orchestras Inc$2,50050%
Multiple Sclerosis Foundation Inc$2,35060%
Anti-Defamation League$2,30070%
NAACP Legal Defense & Educ Fund Inc$2,25060%
Norwalk Hospital Foundation$2,25060%
The Actors' Fund of America$2,25030%
Ct League of Conservation Voters Education Fund$2,25040%
The Hospital for Special Surgery Fund Inc$2,20070%
Silver Hill Hospital Inc$2,00070%
A Better Chance of Westport Inc$2,00020%
The Interfaith Alliance Foundation Inc$1,75060%
Wounded Warrior Project Inc$1,75070%
National Multiple Sclerosis Society$1,50020%
American Law Institute$1,50060%
William J Brennan Center for Justice Inc$1,50020%
Neighborhood Studios of Fairfield County Inc$1,50020%
The Open Door Shelter Inc$1,30060%
Homes With Hope$1,25030%
Planned Parenthood of Greater New York Action Fund Inc$1,20010%
Medecins Sans Frontieres USA Inc$1,00040%
Friends of the Levitt Pavilion Inc$1,00020%
Weston Education Foundation Inc$1,0002n/a
Connecticut Humane Society$90040%
Save the Sound$75030%
The American Society for the Prevention of Cruelty to Animals$60030%
Special Olympics Connecticut Inc$57630%
Dana-Farber Cancer Institute Inc$54010%
Fine Arts Radio Inc$50011%
Lawyers' Committee for Civil Rights Under Law$50010%
Alzheimer's Disease Research Foundation$50010%
WGBH Educational Foundation$50010%
Brightfocus Foundation$50010%
Appalachian Mountain Club$40020%
Ocean Conservancy$40030%
American Rivers Inc$30030%
Connecticut Audubon Society Inc$30030%
Religious Institute Inc$25020%
National Park Foundation$20020%
American National Red Cross & Its Constituent Chapters and Branches$10010%
National Wildlife Federation$10010%
March of Dimes Inc$5010%
American Heart Association Inc$2510%

What it could do for these grantees

Plus 54 recipients with no EIN on record ($708k), not named here.

Where it is load-bearing

Howard & Katherine Aibel Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 84 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPoly Prep Country Day School: $130,000 over 7y, 0.0% of budgetFund for Lachat Town Farm Inc: $120,000 over 4y, 48% of budgetSuffolk University: $79,500 over 6y, 0.0% of budgetMy Friend Abby Inc: $79,500 over 6y, 12% of budgetBoston Modern Orchestra Project Inc: $56,500 over 6y, 1.2% of budgetHuntington Theatre Co Inc: $51,750 over 6y, 0.1% of budgetCommunity Therapeutic Day School Inc: $47,600 over 7y, 0.2% of budgetWestport Country Playhouse Inc: $47,500 over 7y, 0.2% of budgetPerson to Person Inc: $33,200 over 6y, 0.1% of budgetRadius Ensemble Incorporated: $32,500 over 5y, 10% of budgetNew York University: $31,500 over 2y, 0.0% of budgetAspetuck Land Trust: $31,000 over 6y, 1.3% of budgetMusic for Youth Inc: $27,000 over 7y, 9.1% of budgetCommunity Access to the Arts Inc: $22,500 over 5y, 0.3% of budgetCastle of Our Skins Inc: $22,000 over 6y, 3.1% of budgetMoca Ct Inc: $20,000 over 1y, 2.6% of budgetConcord Scout House Inc: $20,000 over 6y, 7.1% of budgetMetropolitan College of New York: $18,000 over 2y, 0.1% of budgetSacred Heart University Incorporated: $15,000 over 7y, 0.0% of budgetNew Gallery Concert Series Inc: $13,500 over 6y, 9.2% of budgetActors' Shakespeare Project: $13,500 over 6y, 0.3% of budgetUncornered Inc: $13,000 over 6y, 0.1% of budgetThe Connecticut Players Foundation Inc D/B/A Long Wharf Theatre: $12,800 over 7y, 0.1% of budgetAmerican Bar Foundation: $12,538 over 6y, 0.0% of budgetCultural Alliance of Fairfield County Inc: $11,000 over 7y, 1.5% of budgetThe Jordan Porco Foundation: $10,000 over 1y, 2.0% of budgetEarthplace Inc: $5,500 over 6y, 0.0% of budgetConnecticut Foodshare Inc: $5,500 over 7y, 0.0% of budgetLyric Stage Company of Boston Inc: $5,000 over 2y, 0.1% of budgetPlanned Parenthood Federation of America Inc: $4,950 over 6y, 0.0% of budgetGoodspeed Opera House Foundation Inc: $4,750 over 7y, 0.0% of budgetSierra Club Foundation: $4,500 over 6y, 0.0% of budgetNatural Resources Defense Council Inc: $4,250 over 5y, 0.0% of budgetMusiconnects Inc: $4,000 over 4y, 0.3% of budgetYoung Mens Christian Association of Westport/Weston Ct Inc: $3,500 over 7y, 0.0% of budgetFederation for Jewish Philanthropy of Upper Fairfield County: $3,280 over 7y, 0.1% of budgetHarvard Magazine Inc: $3,250 over 7y, 0.0% of budgetUnited States Fund for Unicef: $3,000 over 7y, 0.0% of budgetVisiting Nurse & Hospice of Fairfield County Inc: $3,000 over 7y, 0.0% of budgetTrustees of Boston University: $3,000 over 6y, 0.0% of budgetWeston Warm-Up Fund Inc: $3,000 over 7y, 0.8% of budgetBroadway Caresequity Fights AIDS Inc: $2,500 over 5y, 0.0% of budgetThe Susan Fund Inc: $2,500 over 5y, 0.9% of budgetBoston Youth Symphony Orchestras Inc: $2,500 over 5y, 0.0% of budgetMultiple Sclerosis Foundation Inc: $2,350 over 6y, 0.0% of budgetAnti-Defamation League: $2,300 over 7y, 0.0% of budgetNAACP Legal Defense & Educ Fund Inc: $2,250 over 6y, 0.0% of budgetNorwalk Hospital Foundation: $2,250 over 6y, 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 84.

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.

Connecticut Humanities Council IncCT24.5× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Connecticut Humanities Council Inc · Fairfield County's Community Foundation Inc · Boston Foundation Inc · The Stewart & Constance Greenfield Foundation · Newman's Own Foundation · The Lundberg Family Foundation · The Shack Sackler Foundation · The James & Mary Ellen Marpe Family Foundation · Ge Aerospace Foundation · Mutual of America Foundation · Smilow Foundation · Jewish Foundation of Greater New Haven 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 Howard & Katherine Aibel Foundation with peer funders

About Howard & Katherine Aibel Foundation

How much does Howard & Katherine Aibel Foundation give?
Howard & Katherine Aibel Foundation reported 74 grants totaling $291,340 in its FY2024 IRS filing. It funded between 81 and 97 organizations a year over FY2018 to FY2023.
What does Howard & Katherine Aibel Foundation fund?
By grant dollars over FY2018 to FY2024, its largest causes are Arts & Culture (36%), Education (23%), Health (9%).
Who are Howard & Katherine Aibel Foundation's largest grantees?
By total granted over FY2018 to FY2024: Poly Prep Country Day School ($130k), Fund for Lachat Town Farm Inc ($120k), Suffolk University ($80k).
Does Howard & Katherine Aibel Foundation fund new organizations?
In FY2023, 19% of the organizations it funded were first-time grantees.
Does Howard & Katherine Aibel 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 Howard & Katherine Aibel Foundation?
Its strongest co-funders, measured against what their size predicts, include Connecticut Humanities Council Inc, Fairfield County's Community Foundation Inc, Boston Foundation Inc.
Where is Howard & Katherine Aibel Foundation based?
Howard & Katherine Aibel Foundation is based in MA.

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 143 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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