Riverdale School District Foundation
To fill the significant gap between available funding from state and local option revenues and the annual operating budget of the riverdale school district. Funds raised from our annual campaigns maintain small class sizes and the breadth of programs that have set the standard for exceptional education in Oregon.
Riverdale School District Foundation at a glance
In short: Riverdale School District Foundation gave $1.1M across 1 grant in 2025 (avg $1.1M), mostly in Oregon. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $1,100,000
- -8.3% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $1,100,000
- -8.3% vs 2024
- Median grant
- $1,100,000
- Total assets
- $1,045,042
- +5.0% vs 2024
- Primary geography
- Oregon (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Riverdale School District Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Riverdale School District 51J ($1.1M).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was in the $1–5M range: 5 grants of 5 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Riverdale School District Foundation gives
- Giving held roughly steady from 2022 to 2025 (+3%). Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $1.1M (2022) to $1.6M (2023). In 2025 it made 1 grant totaling $1.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Riverdale School District 51J Portland, OR | To fill the significant gap between available funding and local option revenues and the actual cost of riverdale's exceptional education. | $1,100,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $1,045,042 | $1,152,527 | $1,152,210 | $1,100,000 | 1 | $25,545 |
| 2024 | $995,736 | $1,079,335 | $1,257,853 | $1,200,000 | 1 | $23,915 |
| 2023 | $1,148,754 | $1,023,270 | $1,667,003 | $1,628,500 | 1 | $20,243 |
| 2022 | $1,777,863 | $1,136,728 | $1,098,916 | $1,069,701 | 1 | $15,990 |
| 2021 | $1,827,698 | $1,151,534 | $1,474,175 | $1,445,000 | 1 | $12,729 |
| 2020 | $2,082,188 | $1,448,208 | $1,471,212 | $1,445,000 | 1 | $14,520 |
About Riverdale School District Foundation
Based on IRS filings
Riverdale School District Foundation is a public charity, based in Lake Oswego, OR. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $1.0M in total assets. In 2025, it awarded 1 grant totaling $1.1M. Net investment income was $26K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Riverdale School District Foundation is led by Paul Stefan, Board President since 2024 (on filings since 2023); none of the 22 officers listed in 2025 report compensation.
Officers on the 2025 filing
Paul Stefan
Board President
Co-Treasurer → Board President, 2024
On filings since 2023
10 hrs/week
No compensation reported
Eric Mulligan
Board Member
President → Director, 2021
Director → Board Member, 2024
On filings since 2020
2 hrs/week
No compensation reported
Kristen Kohnstamm
Board Member
Director → Board Member, 2024
On filings since 2020
2 hrs/week
No compensation reported
Suzi Maddocks
Board Member
Director → Board Member, 2024
On filings since 2020
2 hrs/week
No compensation reported
Tina Brown
Board Member
Director → Board Member, 2024
On filings since 2020
2 hrs/week
No compensation reported
Allison Williams
Board Campaign Co-Chair
Director → President, 2022
President → Board Campaign Co-Chair, 2024
On filings since 2021
10 hrs/week
No compensation reported
Kim Mauer
Board Member
Director → Board Member, 2024
On filings since 2021
2 hrs/week
No compensation reported
Adria Cassidy
Board Member
Director → Board Member, 2024
On filings since 2022
2 hrs/week
No compensation reported
Andrew Gibson
Board Member
Director → Board Member, 2024
On filings since 2022
2 hrs/week
No compensation reported
Aryn Mayor
Board Campaign Co-Chair
Director → Board Campaign Co-Chair, 2024
On filings since 2023
10 hrs/week
No compensation reported
Donna Avedisian
Board Member
Director → Board Member, 2024
On filings since 2023
2 hrs/week
No compensation reported
Dorothy Friedrich
Board Member
Director → Board Member, 2024
On filings since 2023
2 hrs/week
No compensation reported
Jenny Ko
Board Member
Director → Board Member, 2024
On filings since 2023
2 hrs/week
No compensation reported
Shelley Hilderbrand
Board Secretary
Secretary → Board Secretary, 2024
On filings since 2023
10 hrs/week
No compensation reported
Jeanette Sung
Board Member
Board Co-Treasurer → Board Member, 2025
On filings since 2024
2 hrs/week
No compensation reported
Juliet Hillman
Board Member
On filings since 2024
2 hrs/week
No compensation reported
Katie Schenning
Board Member
On filings since 2024
2 hrs/week
No compensation reported
Milessa Lowrie
Board Member
On filings since 2024
2 hrs/week
No compensation reported
Christian Stelling
Board Co-Treasurer
New on the 2025 filing
10 hrs/week
No compensation reported
Craig Arrowsmith
Board Member
New on the 2025 filing
2 hrs/week
No compensation reported
Michele Rosollo
Board Co-Treasurer
New on the 2025 filing
10 hrs/week
No compensation reported
Stephanie Gault
Board Member
New on the 2025 filing
2 hrs/week
No compensation reported
Former officers (26)
- Former: Drew Lanenga (2022–2024) — Board Member
- Former: Matthew Harad (2022–2024) — Board Co-Treasurer
- Former: Travis Mayor (2024) — Board Campaign Co-Chair
- Former: Mina Stricklin (2023) — Director
- Former: Val Luckenbill (2023) — Director
- Former: Gary Yatcyshyn (2020–2022) — Director
- Former: Jason Mitsky (2020–2022) — Co-Treasurer
- Former: Leslie Goss (2020–2022) — Director
- Former: Nikki Brenneke (2020–2022) — Secretary
- Former: Andy Ford (2021–2022) — Director
- Former: Jonathan Hurliman (2021–2022) — Director
- Former: Miranda Wellman (2022) — Director
- Former: Valerie Luckenbill (2022) — Director
- Former: Amber Hillman (2020–2021) — President
- Former: Amy Coulter (2020–2021) — Co-Treasurer
- Former: Anita Scarlett (2020–2021) — Director
- Former: Dana Andersen (2020–2021) — Director
- Former: Daniel Janoff (2020–2021) — Director
- Former: Erin Moone (2020–2021) — Director
- Former: Hal Abrams (2020–2021) — Director
- Former: Joe Prats (2020–2021) — Director
- Former: Heather Bogaty (2021) — Director
- Former: Andrew Allen (2020) — Director
- Former: Andrew Ford (2020) — Director
- Former: Karen Chong (2020) — Co-Treasurer
- Former: Lance Steinberg (2020) — Director
Data from IRS Form 990 filings, 2020–2025. "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 Riverdale School District Foundation
How much does Riverdale School District Foundation give each year?
Riverdale School District Foundation gave $1.1M across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $1.2M across 1 grant.
How large is Riverdale School District Foundation?
Riverdale School District Foundation reported $1.0M in total assets on its 2025 IRS Form 990. Its revenue that year was $1.2M.
Where does Riverdale School District Foundation operate?
Riverdale School District Foundation has awarded grants in Oregon.
What is Riverdale School District Foundation's EIN?
Riverdale School District Foundation's EIN (Employer Identification Number) is 94-3187982. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2025
Live grants for the work Riverdale School District Foundation funds
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