← Funder search

Mack Foundation

Bainbridge Island, WA · EIN 461580680 990-PF tax year 2025“Preselected organizations only” box checked

Historical funder research: IRS Form 990-PF filings from US private foundations, showing who funded what in past years. This is not a list of currently open grant calls, and we do not track open RFPs from private foundations. From public IRS Form 990-PF filings (latest on file for this funder: tax year 2025). Coverage: tax years 2019–2025. Freshness: the IRS releases these returns 1.5–2+ years after the tax year ends, so 2025 is still partial and a funder's newest grants may not appear yet. Last updated: November 14, 2026. Filings can contain errors, so confirm current priorities and deadlines with the funder before applying.

Grants paid (tax yr 2025)
$314,000
Assets (fair market value)
$2,697,966
Median grant to orgs
$25,000
all loaded years
Grants in our data
22
since tax year 2022
Giving by tax year
$40,000
2022
3 grants
$135,000
2023
5 grants
$232,500
2024
5 grants
$314,000
2025
9 grants

Year 2025 is still partial because many returns have not been filed or released yet. That is a freshness issue — coverage in our dataset is tax years 2019–2025.

Top recipient states
VT$255,000
WA$214,000
NC$102,500
NY$50,000
LA$50,000
CT$25,000
FL$15,000
CA$10,000
Cause areas funded
Education5
Philanthropy & Voluntarism1
Human Services2
Housing & Shelter2

Only 45.5% of this funder's organizational grants could be linked to an IRS cause code.

How to apply (from the 990-PF, tax year 2025)

The foundation checked the box saying it contributes only to preselected organizations and doesn't accept unsolicited requests.

Form & materials
Not stated
Deadlines
Not stated
Restrictions
Not stated
Recent grants to organizations
RecipientLocationPurpose (as filed)AmountTax yr
Norwich UniversityNorthfield, VTGENERAL SUPPORT$115,0002025
Music Center of the NorthwestSeattle, WAGENERAL SUPPORT$50,0002025
Christian Brothers FoundationNew Orleans, LAGENERAL SUPPORT$50,0002025
One Call for AllBainbridge, WAGENERAL SUPPORT$41,0002025
RHF FoundationFayatteville, NCGENERAL SUPPORT$25,0002025
St Cecilia ParishBainbridge Island, WAGENERAL SUPPORT$10,0002025
The Ucla FoundationLos Angeles, CAGENERAL SUPPORT$10,0002025
Helpline HouseBainbridge Island, WAGENERAL SUPPORT$10,0002025
Seattle Union MissionKent, WAGENERAL SUPPORT$3,0002025
Norwich UniversityNorthfield, VTGENERAL SUPPORT$120,0002024
Music Center of the NorthwestSeattle, WAGENERAL SUPPORT$50,0002024
RHF FoundationFayatteville, NCGENERAL SUPPORT$27,5002024
National Coast Guard MuseumNew London, CTGENERAL SUPPORT$25,0002024
Family Promise of BrevardCocoa, FLGENERAL SUPPORT$10,0002024
Memorial Sloan Kettering CancerNew York, NYGENERAL SUPPORT$50,0002023
Music Center of the NorthwestSeattle, WAGENERAL SUPPORT$25,0002023
Helpline HousePuyallup, WAGENERAL SUPPORT$25,0002023
RHF FoundationFayatteville, NCGENERAL SUPPORT$25,0002023
Norwich UniversityNorthfield, VTGENERAL SUPPORT$10,0002023
RHF FoundationFayatteville, NCGENERAL SUPPORT$25,0002022
Norwich UniversityNorthfield, VTGENERAL SUPPORT$10,0002022
Family Promise of BrevardRockledge, FLGENERAL SUPPORT$5,0002022

Grants to individuals are counted but not named.

Researching funders for a client?

The free funder search finds foundations that funded organizations like your client's, by cause and location. Free templates: multi-client grant calendar, grant tracker. GrantCorral is a workspace for grant consultants with several clients; founding members get 60 days free on Consultant, no card required, then 50% off the first year if they stay.