Private foundation · EIN 82-3393745 · Great Falls, Virginia · Philanthropy & grantmaking

Blackthorn 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: 4 grants paid, $160K total, median $38K. 75% of grants stayed in Virginia.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
4
$160K
Median grant
$38K
Stays in VA
75%
of grants
Deadline
—
Assets
$3.4M

Grants paid in 2025

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

RecipientPurposeAmount
House of MercyManassas, VAFor general support$70K
Youth Leadership FoundationWashington, DCFor general support$40K
A Woman's ChoiceFalls Church, VAFor general support$35K
Mario E Dorsonville FoundationGreat Falls, VAFor homeless program$15K

By state: Virginia 3 · District of Columbia 1

About this foundation

Blackthorn Foundation is a private grantmaking foundation in Great Falls, Virginia, administered in care of Monica Drennan Brown, tax-exempt since 2018. 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 Blackthorn 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 Blackthorn Foundation give each year?

In tax year 2025 it paid $160K across 4 grants, a median of $38K.

Where does Blackthorn Foundation give?

Virginia (3 grants), District of Columbia (1 grants), per its latest filing.

More foundations near Great Falls

All in Virginia
FoundationBased inGrants paidMedian grantAccepts applicationsAssets
Karlgaard Family Foundationsince 2001 Great Falls, VA $2.4M17 grants · 2025 $25KPreselected only $34M
Gordon and Marilyn Macklin Foundation Incsince 2000 Great Falls, VA — —Not stated $14M
Sellier Family Foundationsince 2012 Great Falls, VA $573K11 grants · 2025 $28KPreselected only $8.7M
Rabaut Family Foundationsince 2006 Great Falls, VA $673K30 grants · 2025 $8,093Preselected only $5.7M
Hakopian Family Foundationsince 2025 Great Falls, VA $10K1 grants · 2025 $10KPreselected only $5.6M
Okane Family Foundation Incsince 2019 Great Falls, VA $217K16 grants · 2024 $15KPreselected only $5.4M
Robert and Dee Leggett Foundationsince 1999 Great Falls, VA $370K25 grants · 2025 $10KPreselected only $4.2M
Impact USAsince 2019 Great Falls, VA $220K11 grants · 2025 $15KPreselected only $3.4M
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