Interlaken Foundation Inc
Interlaken Foundation Inc is a private foundation, based in New York, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $366.8M in total assets. In 2024, it awarded 4 grants totaling $18.4M. Net investment income was $20.9M.
Interlaken Foundation Inc at a glance
In short: Interlaken Foundation Inc gave $18.4M across 4 grants in 2024 (avg $4.6M), mostly in California. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $18,400,000
- +10.8% vs 2023
- Grants made (2024)
- 4
- +0.0% vs 2023
- Average grant
- $4,600,000
- +10.8% vs 2023
- Median grant
- $3,800,000
- Total assets
- $366,754,527
- +0.6% vs 2023
- Primary geography
- California (95% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Interlaken Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2024
The largest 2024 recipient was Wildlife Conservation Network ($10.6M). Together the top 4 received $18.4M.
Grant Size Distribution
26 grants across all recorded years
The most common grant size was in the $1–5M range: 9 grants of 26 (35%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 4 itemized grants.
Cities
How Interlaken Foundation Inc gives
- Giving held roughly steady from 2021 to 2024 (+17%). Method
- In 2024 it paid out 95% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $9.6M (2020) to $18.4M (2024). In 2024 it made 4 grants totaling $18.4M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Wildlife Conservation Network San Francisco, CA | For Organization's Charitable Use | $10,550,000 |
| Community Foundation of Santa Cruz County Santa Cruz, CA | For Organization's Charitable Use | $7,000,000 |
| Unite America Institute Denver, CO | For Organization's Charitable Use | $600,000 |
| Rank the Vote Inc Cambridge, MA | For the Organization's Charitable Use | $250,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $366,754,527 | $24,618,181 | $22,258,233 | $18,400,000 | 4 | $18,553,326 | $20,860,007 | $19,618,777 |
| 2023 | $364,394,579 | $11,583,338 | $20,117,273 | $16,600,000 | 4 | $16,630,978 | $5,967,229 | $18,365,596 |
| 2022 | $372,928,514 | $41,079,708 | $20,403,825 | $17,500,000 | 6 | $17,568,500 | $8,659,437 | $17,552,021 |
| 2021 | $352,252,631 | $63,384,131 | $18,540,602 | $15,725,000 | 6 | $15,805,000 | $61,302,081 | $17,763,524 |
| 2020 | $307,409,102 | $47,024,089 | $11,865,006 | $9,575,000 | 6 | — | $2,813,368 | $15,184,165 |
Under IRS private-foundation payout rules, Interlaken Foundation Inc reported a distributable amount of $19.6M for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Interlaken Foundation Inc is led by Christopher Wilmers, President on every filing since 2020 — the only officer listed, and uncompensated.
Officers on the 2024 filing
Christopher Wilmers
President
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 Interlaken Foundation Inc
How much does Interlaken Foundation Inc give each year?
Interlaken Foundation Inc gave $18.4M across 4 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $16.6M across 4 grants.
What is Interlaken Foundation Inc's typical grant size?
Interlaken Foundation Inc's median grant in 2024 was $3,800,000, and its average grant was $4,600,000, across 4 grants on its 2024 IRS Form 990-PF.
Where does Interlaken Foundation Inc give grants?
Interlaken Foundation Inc gives mostly in California: 95% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there.
Does Interlaken Foundation Inc give general operating support?
Not in 2024: none of the 4 grants with a stated purpose on Interlaken Foundation Inc's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "For Organization's Charitable Use" (3 grants).
How large is Interlaken Foundation Inc?
Interlaken Foundation Inc reported $366.8M in total assets on its 2024 IRS Form 990-PF. It paid out $18.6M in qualifying distributions that year, against a required minimum of $19.6M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What is Interlaken Foundation Inc's EIN?
Interlaken Foundation Inc's EIN (Employer Identification Number) is 52-2339479. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Interlaken Foundation Inc funds
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Browse active grant opportunities in Interlaken Foundation Inc's focus areas in our free grants database
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