Riley Sampson Foundation

Private foundation · Grantmaker Puyallup, WA EIN: 88-1769577

Riley Sampson Foundation is a private foundation focused on Housing & Shelter, based in Puyallup, WA. IRS filing data is available from 2023 through 2025. As of 2025, the organization holds $58K in total assets. In 2025, it awarded 5 grants totaling $13K. Net investment income was $19.

Key facts about Riley Sampson Foundation

In short: Riley Sampson Foundation gave $13K across 5 grants in 2025 (avg $3K), mostly in Washington. Source: 2025 IRS Form 990-PF.

EIN
88-1769577
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$13,421
Grants made (2025)
5
Average grant
$2,684
Median grant
$1,000
Total assets
$58,447
Primary geography
Washington (93% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$58K

-18.8% YoY

Annual Giving

$13K

+7.8% YoY

Grant Count

5

-28.6% YoY

Avg Grant Size

$3K

+51.0% YoY

Under IRS private-foundation payout rules, Riley Sampson Foundation reported a distributable amount of $3K for 2025 — the minimum it must pay out in qualifying distributions.

How Riley Sampson Foundation gives

  • In 2025 it paid out 418% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

2states

Share of 2025 grant dollars across all 5 itemized grants.

Cities

TacomaPuyallupRentonCoupevilleSumnerAlamoFederal Way

Giving Over Time

Total grant dollars and number of grants per year

$0$5K$10K$15K$20K6 grants2023 7 grants2024 5 grants2025

From 2023 to 2025, annual grant giving ranged from $12K (2024) to $15K (2023). In 2025 it made 5 grants totaling $13K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 5 recipients in 2025

Wiaa: $6KWiaa$6KCoupeville High School Booster Club: $5KCoupeville High School BoosterClub$5KEquipnet: $1KEquipnet$1KPuyallup Food Bank: $500Puyallup Food Bank$500Communities in School of Tacoma: $500Communities in School ofTacoma$500

The largest 2025 recipient was Wiaa ($6K). Together the top 5 received $13K.

Grant Size Distribution

18 grants across all recorded years

18<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 18 grants of 18 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Wiaa Renton, WATo assist with student althetic programs. Includes payment to Texas de brazil for state championships hosting dinner, a wiaa exempt activity.$6,421
Coupeville High School Booster Club Coupeville, WATo Further the Schools's Athletic Programs.$5,000
Equipnet Alamo, CACollaborating Together to Advance God's Kingdom$1,000
Puyallup Food Bank Puyallup, WATo Assist Those with Food Insecurities$500
Communities in School of Tacoma Tacoma, WATo Assist in the Development of Children$500

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$50K$100K$150K2023 2024 2025
Metric202520242023
Total Assets$58,447$71,977$86,868
Revenue$1,981$25$103,459
Expenses$15,511$14,916$16,591
Qualifying Distributions$13,421$12,445$15,120
Net Investment Income$19$25$19,931
Distributable Amount$3,212$3,912$1,862

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2023 (received by the IRS November 14, 2024)
  2. Updated Form 990-PF for fiscal year 2024 (received by the IRS March 12, 2025)
  3. Updated Form 990-PF for fiscal year 2025 (received by the IRS February 19, 2026)
  4. IRS filings on file for fiscal years 2023–2025

Leadership & Key People

Officers and directors from IRS filings

Riley Sampson Foundation is led by William Riley, President on every filing since 2023; none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • William Riley

    President

    On filings since 2023

    1 hr/week

    No compensation reported

  • Althea Riley

    Vice President

    On filings since 2023

    1 hr/week

    No compensation reported

  • Merritt Riley

    Secretary & Treasurer

    On filings since 2023

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2023–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Riley Sampson Foundation

How much does Riley Sampson Foundation give each year?

Riley Sampson Foundation gave $13K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $12K across 7 grants.

What is Riley Sampson Foundation's typical grant size?

Riley Sampson Foundation's median grant in 2025 was $1,000, and its average grant was $2,684, across 5 grants on its 2025 IRS Form 990-PF.

Where does Riley Sampson Foundation give grants?

Riley Sampson Foundation gives mostly in Washington: 93% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was California (7%).

Does Riley Sampson Foundation give general operating support?

Not in 2025: none of the 5 grants with a stated purpose on Riley Sampson Foundation's 2025 IRS Form 990-PF were described as general or operating support.

Who are Riley Sampson Foundation's largest grantees?

Riley Sampson Foundation's largest 2025 grantees include Wiaa ($6,421), Coupeville High School Booster Club ($5,000) and Equipnet ($1,000), according to its 2025 IRS Form 990-PF. Together they received 93% of its itemized 2025 grant dollars.

How large is Riley Sampson Foundation?

Riley Sampson Foundation reported $58K in total assets on its 2025 IRS Form 990-PF. It paid out $13K in qualifying distributions that year, against a required minimum of $3K (roughly 5% of its investment assets).

What is Riley Sampson Foundation?

Riley Sampson Foundation is a private foundation focused on Housing & Shelter, based in Puyallup, WA. It holds $58K in total assets as of 2025.

What is Riley Sampson Foundation's EIN?

Riley Sampson Foundation's EIN (Employer Identification Number) is 88-1769577. IRS Form 990 filing data is available on this page for 2023–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

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