Foundations · IRS 990 filings

Foundations in Mercer Island, Washington

40
foundations with a Mercer Island address
$22.3M
grants paid, FY2024–FY2025
9
say they accept unsolicited
$4,125
median grant

Grantlas lists 40 foundations that gave a Mercer Island, Washington address on their tax filing — 39 private foundations and 1 grantmaking charity — from filings for FY2024–FY2025. Together they paid out $22.3 million in grants in their latest filing year, and 9 of them (23%) say they accept unsolicited requests.

Not every foundation here is a Mercer Island foundation. The city is the mailing address on the foundation’s tax filing, and when a bank or a law firm runs the trust that is the bank’s address, not the place it gives to. Check where a foundation gives before you write.

Top 25 of 40 foundations

Ranked by what they paid in grants in their latest filing, with the ones that accept unsolicited requests first, then the ones whose filing doesn’t say.

Foundations in Mercer Island, Washington
Larry Benaroya Family FoundationAccepts$15,000$17M$500–$10MFY2025Locked: fit score and contacts
Hill Family FoundationAccepts$50,000$1.3M$5,000–$150,000FY2024Locked: fit score and contacts
Lovsted Family Charitable FoundationAccepts$3,000$299,100$100–$81,000FY2025Locked: fit score and contacts
Welfund IncAccepts$5,000$96,500$1,000–$50,000FY2025Locked: fit score and contacts
Shep-Rock Inc Co Gordon RockAccepts$3,700$62,400$1,000–$20,000FY2024Locked: fit score and contacts
The Schroeder FoundationAccepts$25,000$25,000—FY2025Locked: fit score and contacts
The Summit Family A WashingtonAccepts$200$21,700$100–$15,000FY2024Locked: fit score and contacts
Lee Family FoundationAccepts$4,500$15,700$200–$11,200FY2025Locked: fit score and contacts
North Star Council for Alcohol and DrugAccepts$1,500$12,000$1,250–$1,500FY2025Locked: fit score and contacts
Celebrity Waiters LuncheonFederationNot stated$369,133Over $5k only$348,065$348,065–$390,200FY2024Locked: fit score and contacts
East Seattle FoundationInvitation only$2,000$493,600$500–$100,000FY2025Locked: fit score and contacts
Newman Family FoundationInvitation only$6,000$456,020$360–$60,000FY2024Locked: fit score and contacts
The Higgins Family FoundationInvitation only$20,000$446,000$1,000–$100,000FY2025Locked: fit score and contacts
His FoundationInvitation only$5,000$217,000$1,000–$30,000FY2024Locked: fit score and contacts
The Macrae FoundationInvitation only$5,000$139,000$1,000–$20,000FY2025Locked: fit score and contacts
Schoenfeld Gardner FoundationInvitation only$138,650$138,650—FY2025Locked: fit score and contacts
Raman Family FoundationInvitation only$5,000$118,000$500–$25,000FY2024Locked: fit score and contacts
Peggy and Brian SassiInvitation only$2,000$110,776$200–$31,000FY2025Locked: fit score and contacts
Medical Education Scholarship AidInvitation only$2,700$100,150$50–$100,000FY2025Locked: fit score and contacts
Shirley & David Allen FoundationInvitation only$788$97,800$50–$28,300FY2025Locked: fit score and contacts
The Hazel FundInvitation only$1,000$96,875$300–$30,000FY2024Locked: fit score and contacts
Paul Bao-Ho and Mei-Yea LiaoInvitation only$1,750$81,050$300–$15,000FY2024Locked: fit score and contacts
Excel at Sports FoundationInvitation only$5,000$80,553$2,500–$60,000FY2025Locked: fit score and contacts
Schulze Family FoundationInvitation only$10,000$80,000$150–$40,000FY2024Locked: fit score and contacts
Wenaweser FoundationInvitation only$509$62,300$100–$10,000FY2025Locked: fit score and contacts
  • Median grant and grant range come from each funder’s grant schedule; a dash means there is none to report. Community foundations and other charities list only grants over $5,000, so their figures run high.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.
  • A median grant larger than the grants paid is not a mistake: the grant schedule and the year’s total come from different parts of the tax filing, and a foundation can list a grant it approved in a year it paid out less.

15 more foundations — see all in Grantlas

Data from 990-PF and Form 990 filings, FY2024–FY2025. Updated November 8, 2026.