Private foundation · EIN 85-4251257 · Wilmington, Delaware · Philanthropy & grantmaking

Mackenzie Ryan Brumberg Foundation

Should you approach them?

Don't send a cold proposal. The foundation reports that it only gives to preselected organizations; an introduction through a current grantee or board member is the realistic route.

From the 2025 Form 990-PF: 8 grants paid, $647K total, median $19K. 13% of grants stayed in Delaware.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
8
$647K
Median grant
$19K
Stays in DE
13%
of grants
Deadline
—
Assets
$30M

Grants paid in 2025

8 grants, all shown · from Form 990-PF Part XV

RecipientPurposeAmount
Fs Charitable FundWilmington, DERound Hill Children's Museum fund$530K
Ballet Theatre Foundation IncNew York, NYGeneral & Unrestricted$25K
Central Fund of IsraelCedarhurst, NYIsrael Advocacy fund$25K
Stanford Law SchoolStanford, CAStanford Law School Federalist Society fund$25K
Round Hill Association IncGreenwich, CTGeneral & Unrestricted$13K
University of Southern CaliforniaLos Angeles, CAto support an annual or semi-annual business law, corporate and commercial law, or law and finance seminar$13K
Greenwich Riding & Trails Association IncGreenwich, CTGeneral & Unrestricted$10K
United Way of Greenwich IncGreenwich, CTGeneral & Unrestricted$6,975

By state: Delaware 1 · New York 2 · California 2 · Connecticut 3

About this foundation

Mackenzie Ryan Brumberg Foundation is a private grantmaking foundation in Wilmington, Delaware, administered in care of Foundation Source, tax-exempt since 2023. Private foundations must pay out roughly 5% of their assets each year, mostly as grants to 501(c)(3) public charities.

All filings on ProPublica

Does Mackenzie Ryan Brumberg Foundation accept grant applications?

No. On its 2025 Form 990-PF the foundation checked that it only makes contributions to preselected organizations. Look for an introduction through a current grantee.

How much does Mackenzie Ryan Brumberg Foundation give each year?

In tax year 2025 it paid $647K across 8 grants, a median of $19K.

Where does Mackenzie Ryan Brumberg Foundation give?

Delaware (1 grants), New York (2 grants), California (2 grants) and elsewhere, per its latest filing.

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