Private foundation · EIN 26-1507285 · Bryn Mawr, Pennsylvania · Philanthropy & grantmaking

Hollenstein Ross Family 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: 31 grants paid, $577K total, median $10K. 84% of grants stayed in Pennsylvania.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
31
$577K
Median grant
$10K
Stays in PA
84%
of grants
Deadline
—
Assets
$2.7M

Grants paid in 2025

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

RecipientPurposeAmount
Philadelphia ZooPhiladelphia, PAEducational$100K
PawsPhiladelphia, PAAnimal welfare$50K
Numotion FoundationMontgomeryville, PAHealth care$50K
Cambodia Rural StudentsNorth Melborne, ASEducational$50K
Educational Law CenterPhiladelphia, PAEducational$30K
Welcoming CenterPhiladelphia, PAEducational$25K
Share Food ProgramPhiladelphia, PAFood for the needy$25K
PawsPhiladelphia, PAAnimal welfare$25K
1 Love 4 AnimalsSoutheastern, PAPrevention of cruelty to animals$25K
Philadelphia ZooPhiladelphia, PAEducational$25K
Educational Law CenterPhiladelphia, PAEducational$20K
Numotion FoundationSharon Hill, PAPrevention of cruelty to animals$20K
South Bronx UnitedBronx, NYEducational$18K
Src FoundationNorristown, PACommunity support$15K
The Spayed ClubSharon Hill, PAPrevention of cruelty to animals$15K
JchaiBryn Mawr, PAIndependent living$10K
1 Love 4 AnimalsSoutheastern, PAPrevention of cruelty to animals$10K
Philadelphia ZooPhiladelphia, PAEducational$10K
A Better Chance in Lower MerionArdmore, PAEducational$10K
AsapPhiladelphia, PAAfter school activities for students$10K
Trustees of the Univ of PennPhiladelphia, PAEducational$6,000
Issue OneWashington, DCProtect democracy$5,000
WhyyPhiladelphia, PAPublic television$5,000
Upstate Foundation for the BarbaraSyracuse, NYPatient care and education$5,000
Trustees of the Univ of PennPhiladelphia, PAEducational$5,000
Big Dog Ranch RescueLoxahatchee Groves, FLAnimal welfare$2,500
Trustees of the Univ of PennPhiladelphia, PAEducational$2,000
Ludington LibraryBryn Mawr, PAEducational$1,200
PawsPhiladelphia, PAAnimal welfare$1,000
Natural Lands TrustMedia, PALand conservation$1,000
Live Like BlaineBalacynwyd, PAFemale leadership$1,000

By state: Pennsylvania 26 · INTL 1 · New York 2 · District of Columbia 1 · Florida 1

About this foundation

Hollenstein Ross Family Foundation is a private grantmaking foundation in Bryn Mawr, Pennsylvania, administered in care of Susan K Hollenstein, tax-exempt since 2008. 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 Hollenstein Ross Family 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 Hollenstein Ross Family Foundation give each year?

In tax year 2025 it paid $577K across 31 grants, a median of $10K.

Where does Hollenstein Ross Family Foundation give?

Pennsylvania (26 grants), INTL (1 grants), New York (2 grants) and elsewhere, per its latest filing.

More foundations near Bryn Mawr that accept applications

All in Pennsylvania
FoundationBased inGrants paidMedian grantAccepts applicationsAssets
Uncommon Individual Foundationsince 1986 Bryn Mawr, PA $1.1M94 grants · 2024 $1,250Preselected only $94M
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Barrack Foundationsince 1982 Bryn Mawr, PA $69K6 grants · 2024 $5,000Preselected only $33M
Angelakis Charitable Foundationsince 2019 Bryn Mawr, PA $695K37 grants · 2024 $5,400Preselected only $21M
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Belmont Futuressince 2025 Bryn Mawr, PA — —Preselected only $16M
Winokur Foundationsince 1986 Bryn Mawr, PA $700K2 grants · 2024 $350KPreselected only $14M
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