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Massachusetts · Private foundation

James & Melinda Rabb Family 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.

$499k
Granted FY2024(still arriving)
15
Grants FY2024
32
Organizations funded FY2023
9%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$14,552
Largest grant, FY2024
$241,000
Organizations funded a year
14 to 42
FY2018 to FY2023
States reached, FY2024
1
Total assets, FY2024
$9.1M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 9% of the organizations James & Melinda Rabb Family Foundation funded were first-time grantees, receiving 2% of its grant dollars.

New vs renewed · share of each year

In FY2023, 98% of grant dollars renewed an existing relationship; $8k 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
HealthInternationalReligionCivil RightsArts & CultureEducationOther
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 arriving14$424k0%
FY202332$453k9%
FY202214$471k0%
FY202120$280k10%
FY202028$363k21%
FY201934$405k26%
FY201842$429kn/a
88% 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$1.5MEducation$602kPhilanthropy$529kHuman Services$182kHealth$142kReligion$107kCivil Rights$6kInternational$1kOther$0

Top grantees

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

Show all 39 grantees
All grantees of James & Melinda Rabb Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Museum of Fine Arts$332,00060%
Boston Ballet Inc$302,28670%
Trustees of Tufts College$282,90060%
Jewish Family & Children's Service Inc$181,70050%
Boston Symphony Orchestra Inc$165,04070%
Harvard Glee Glub Alumni Inc$90,250312%
Trustees of Phillips Academy$90,00060%
Boston Lyric Opera Company$44,50070%
Beth Israel Deaconess Medical Center Inc$37,64630%
Hillel Foundation of Cambridge Inc$23,00021%
Anti-Defamation League$6,00010%
Congregation Shirat Hayam$3,6005n/a
The Jewish Women's Archive Inc$2,90040%
Boys & Girls Clubs of Boston Inc$1,30050%
Jewish Arts Collaborative Inc$1,11820%
Isabella Stewart Gardner Museum Inc$1,09520%
Dana Hall School$1,00010%
Birthright Israel Foundation$1,00010%
Trustees of Boston University$55020%
Nantucket Historical Association$52540%
Jameson Singers Inc$5001n/a
Rosie's Place Inc$50040%
Community Servings Inc$42530%
Congregation Adath Israel Temple Israel$4003n/a
Proprietors of the Boston Athenaeum$30030%
Jewish Vocational Service Inc$25010%
Action Against Hunger - USA$20010%
New England Conservatory of Music$20020%
Weston Forest and Trail Association Inc$20020%
University of Chicago$20030%
J Street$18010%
Cambridge in America$10010%
Gastro Intestinal Research Foundation Inc$10010%
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$10010%
Pine Street Inn Inc$10010%
Congregation Kehillath Israel$1001n/a
Human Relations Service Inc$10010%
Boston Jewish Film Inc$10010%
Dana-Farber Cancer Institute Inc$10010%

What it could do for these grantees

Plus 23 recipients with no EIN on record ($1.3M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget James & Melinda Rabb Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMuseum of Fine Arts: $332,000 over 6y, 0.1% of budgetBoston Ballet Inc: $302,286 over 7y, 0.2% of budgetTrustees of Tufts College: $282,900 over 6y, 0.0% of budgetJewish Family & Children's Service Inc: $181,700 over 5y, 0.2% of budgetBoston Symphony Orchestra Inc: $165,040 over 7y, 0.0% of budgetHarvard Glee Glub Alumni Inc: $90,250 over 3y, 12% of budgetTrustees of Phillips Academy: $90,000 over 6y, 0.0% of budgetBoston Lyric Opera Company: $44,500 over 7y, 0.1% of budgetBeth Israel Deaconess Medical Center Inc: $37,646 over 3y, 0.0% of budgetHillel Foundation of Cambridge Inc: $23,000 over 2y, 0.5% of budgetAnti-Defamation League: $6,000 over 1y, 0.0% of budgetThe Jewish Women's Archive Inc: $2,900 over 4y, 0.1% of budgetBoys & Girls Clubs of Boston Inc: $1,300 over 5y, 0.0% of budgetJewish Arts Collaborative Inc: $1,118 over 2y, 0.1% of budgetIsabella Stewart Gardner Museum Inc: $1,095 over 2y, 0.0% of budgetDana Hall School: $1,000 over 1y, 0.0% of budgetBirthright Israel Foundation: $1,000 over 1y, 0.0% of budgetTrustees of Boston University: $550 over 2y, 0.0% of budgetNantucket Historical Association: $525 over 4y, 0.0% of budgetRosie's Place Inc: $500 over 4y, 0.0% of budgetCommunity Servings Inc: $425 over 3y, 0.0% of budgetProprietors of the Boston Athenaeum: $300 over 3y, 0.0% of budgetJewish Vocational Service Inc: $250 over 1y, 0.0% of budgetAction Against Hunger - USA: $200 over 1y, 0.0% of budgetNew England Conservatory of Music: $200 over 2y, 0.0% of budgetWeston Forest and Trail Association Inc: $200 over 2y, 0.1% of budgetUniversity of Chicago: $200 over 3y, 0.0% of budgetJ Street: $180 over 1y, 0.0% of budgetCambridge in America: $100 over 1y, 0.0% of budgetGastro Intestinal Research Foundation Inc: $100 over 1y, 0.0% of budgetUnited Jewish Appeal-Federation of Jewish Philanthropies of New York Inc: $100 over 1y, 0.0% of budgetPine Street Inn Inc: $100 over 1y, 0.0% of budgetHuman Relations Service Inc: $100 over 1y, 0.0% of budgetBoston Jewish Film Inc: $100 over 1y, 0.0% of budgetDana-Farber Cancer Institute Inc: $100 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 35.

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.

Combined Jewish Philanthropies of Greater Boston IncMA26.9× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Combined Jewish Philanthropies of Greater Boston Inc · James M Rabb & Melinda a Rabb Charitable Trust · Boston Foundation Inc · Joseph and Rae Gann Charitable Foundation · Gerald Flaxer Charitable Foundation · Justin & Genevieve Wyner Trust · The Klarman Family Foundation · Highland Street Connection and Subsidiaries · Jewish Federation of Metropolitan Chicago · Eastern Bank Foundation · National Philanthropic Trust · Jewish Communal 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 James & Melinda Rabb Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to James & Melinda Rabb Family Foundation?

Find your warmest path to James & Melinda Rabb Family 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 James & Melinda Rabb Family Foundation

How much does James & Melinda Rabb Family Foundation give?
James & Melinda Rabb Family Foundation reported 15 grants totaling $499,202 in its FY2024 IRS filing. It funded between 14 and 42 organizations a year over FY2018 to FY2023.
What does James & Melinda Rabb Family Foundation fund?
By grant dollars over FY2018 to FY2024, its largest causes are Arts & Culture (41%), Education (17%), Philanthropy (15%).
Who are James & Melinda Rabb Family Foundation's largest grantees?
By total granted over FY2018 to FY2024: Museum of Fine Arts ($332k), Boston Ballet Inc ($302k), Trustees of Tufts College ($283k).
Does James & Melinda Rabb Family Foundation fund new organizations?
In FY2023, 9% of the organizations it funded were first-time grantees.
Does James & Melinda Rabb 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 James & Melinda Rabb Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Combined Jewish Philanthropies of Greater Boston Inc, James M Rabb & Melinda a Rabb Charitable Trust, Boston Foundation Inc.
Where is James & Melinda Rabb Family Foundation based?
James & Melinda Rabb Family 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 64 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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