Manresa Island Corp
Manresa Island Corp is a private foundation, based in Norwalk, CT. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $49.0M in total assets. In 2025, it awarded 4 grants totaling $335K. Net investment income was $1K.
Manresa Island Corp at a glance
In short: Manresa Island Corp gave $335K across 4 grants in 2025 (avg $84K), mostly in Connecticut. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $335,000
- Grants made (2025)
- 4
- Average grant
- $83,750
- Median grant
- $85,000
- Total assets
- $48,977,398
- +41.4% vs 2024
- Primary geography
- Connecticut (63% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Manresa Island Corp funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Woods Hole Oceanographic Institutio ($125K). Together the top 4 received $335K.
Grant Size Distribution
4 grants across all recorded years
The most common grant size was in the $100–250K range: 2 grants of 4 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
In 2025 it made 4 grants totaling $335K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Woods Hole Oceanographic Institutio Woods Hole, MA | Research and education station at Manresa Island | $125,000 |
| Wesleyan University Middletown, CT | Research and education station at Manresa Island | $120,000 |
| Maritime Aquarium at Norwalk Inc Norwalk, CT | Research and education station at Manresa Island | $50,000 |
| Sacred Heart University Fairfield, CT | Research and education station at Manresa Island | $40,000 |
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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 |
|---|---|---|---|---|---|---|---|
| 2025 | $48,977,398 | $18,501,285 | $4,159,660 | $335,000 | 4 | $8,259,587 | $1,285 |
| 2024 | $34,635,773 | $36,263,661 | $1,627,888 | — | — | $1,627,888 | $73,518 |
Leadership & Key People
Officers and directors from IRS filings
Manresa Island Corp is led by Jessica Vonashek, Executive Director on every filing since 2024; 1 of 3 officers listed in 2025 is compensated.
Officers on the 2025 filing
Jessica Vonashek
Executive Director
On filings since 2024
40 hrs/week
$81K (2024) → $244K (2025)
Austin McChord
President Director
President, CEO & Director → President Director, 2025
On filings since 2024
10 hrs/week
No compensation reported
Allison McChord
Treasurer Secretary Director
Treasurer, CFO, Secretary & Director → Treasurer Secretary Director, 2025
On filings since 2024
10 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2024–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $244K, to Jessica Vonashek (Executive Director).
Frequently asked questions about Manresa Island Corp
How much does Manresa Island Corp give each year?
Manresa Island Corp gave $335K across 4 grants in 2025, according to its 2025 IRS Form 990-PF.
What is Manresa Island Corp's typical grant size?
Manresa Island Corp's median grant in 2025 was $85,000, and its average grant was $83,750, across 4 grants on its 2025 IRS Form 990-PF.
Where does Manresa Island Corp give grants?
Manresa Island Corp gives mostly in Connecticut: 63% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Massachusetts (37%).
Does Manresa Island Corp give general operating support?
Not in 2025: none of the 4 grants with a stated purpose on Manresa Island Corp's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Research and education station at Manresa Island" (4 grants).
How large is Manresa Island Corp?
Manresa Island Corp reported $49.0M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $18.5M.
What is Manresa Island Corp's EIN?
Manresa Island Corp's EIN (Employer Identification Number) is 99-2542211. IRS Form 990 filing data is available on this page for 2024–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 17, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 20, 2026)
- IRS filings on file for fiscal years 2024–2025
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