Independence Seaport Museum
To discover philadelphia's river of history and world of connections. Serving a wide and diverse audience and holding its collections in trust for the community, the museum tells the stories of the people, historical events and environmental changes of the Delaware river and its tributaries. It looks to a broad regional definition of the river to include both philadelphia and camden as well as portions of the southern coast of New Jersey and the schuylkill river drainage. The museum is the leading educational organization in the region dedicated to the history and culture of the Delaware river and its estuaries. We focus upon building k-16 educational programs that engae students in the rich history of this region as it relates to the waterways in addtion to providng stem and environmental educational opportunities. Our educational mission is to build an understanding of the historical, cultural, and environmental importance of the Delaware river watershed. The museum retains a nationa
Independence Seaport Museum at a glance
- Total assets
- $19,528,398
- -10.5% vs 2024
- Revenue (2025)
- $3,311,365
- -20.9% vs 2024
- Net investment income (2025)
- $1,288,219
- +77.1% vs 2024
- Expenses (2025)
- $6,426,754
- +13.1% vs 2024
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Independence Seaport Museum funds
How this funder distributes its grants
Grant Size Distribution
3 grants across all recorded years
The most common grant size was under $50K: 3 grants of 3 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2022, annual grant giving ranged from $43K (2022) to $52K (2020). In 2022 it made 3 grants totaling $43K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Schuykill Center for Environmental Education Philadelphia, PA | Maritime Education | $14,968 |
| Maritime Charter School Philadelphia, PA | Maritime Education | $13,817 |
| Port of Philadelphia Maritime Society Linwood, PA | Maritime Education | $13,817 |
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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 | $19,528,398 | $3,311,365 | $6,426,754 | — | — | $1,288,219 |
| 2024 | $21,826,969 | $4,185,635 | $5,682,578 | — | — | $727,542 |
| 2023 | $21,290,179 | $3,050,797 | $5,133,522 | — | — | $808,892 |
| 2022 | $22,539,825 | $3,083,203 | $4,759,833 | $42,602 | 3 | $847,365 |
| 2021 | $28,154,026 | $2,388,161 | $4,314,588 | — | — | $660,522 |
| 2020 | $24,772,705 | $2,063,262 | $4,908,259 | $51,749 | 1 | $625,703 |
About Independence Seaport Museum
Based on IRS filings
Independence Seaport Museum is a public charity focused on Arts, Culture & Humanities, based in Philadelphia, PA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $19.5M in total assets. Net investment income was $1.3M.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Independence Seaport Museum is led by Peter Seibert, CEO & President since 2022 (on filings since 2021); 6 of 24 officers listed in 2025 are compensated.
Officers on the 2025 filing
Peter Seibert
CEO & President
CEO & President - From → CEO & President, 2022
On filings since 2021
40 hrs/week
$138K (2022) → $226K (2025)
Peter Ernst
Chair
Vice Chair → Chair, 2023
On filings since 2020
0.5 hrs/week
No compensation reported
Judy Baker
Director of Hr & Volunteer Program
On filings since 2024
33 hrs/week
$105K (2024) → $110K (2025)
Margaret Ann North
Director of Development
New on the 2025 filing
40 hrs/week
$101K (2025)
Michael Timothy Madeja
Director of Education
New on the 2025 filing
40 hrs/week
$117K (2025)
Deborah Gibbons-Neff
Director
On filings since 2020
0.5 hrs/week
No compensation reported
John C Devereux
Director
On filings since 2020
0.5 hrs/week
No compensation reported
Tim McGrath
Director
On filings since 2020
0.5 hrs/week
No compensation reported
Joseph B Lockley
Director
On filings since 2021
0.5 hrs/week
No compensation reported
Scott G Huston
Director
On filings since 2021
0.5 hrs/week
No compensation reported
William F. Moen Jr.
Director
On filings since 2021
0.5 hrs/week
No compensation reported
Brett E J Gorman
Director
On filings since 2022
0.5 hrs/week
No compensation reported
Erik C Klein
Director
On filings since 2023
0.5 hrs/week
No compensation reported
Joanne Phillips Esq.
Director
On filings since 2023
0.5 hrs/week
No compensation reported
John P Ventura
Director
On filings since 2023
0.5 hrs/week
No compensation reported
George A Donnelly Esq.
Director
On filings since 2024
0.5 hrs/week
No compensation reported
Judge Annette Rizzo
Director
On filings since 2024
0.5 hrs/week
No compensation reported
Robert T Healey Jr.
Director
On filings since 2024
0.5 hrs/week
No compensation reported
Michael Flynn
Executive Vice President & COO
On filings since 2020
40 hrs/week
$101K (2020) → $145K (2025)
Jaewook Shim
Controller
On filings since 2024
40 hrs/week
$104K (2024) → $112K (2025)
Courtney Disston
Vice Chair
Director → Vice Chair, 2023
On filings since 2020
0.5 hrs/week
No compensation reported
James T Giles
Secretary
On filings since 2020
0.5 hrs/week
No compensation reported
Thomas G Ashton
Vice Chair
Director → Treasurer, 2021
Treasurer → Vice Chair, 2023
On filings since 2020
0.5 hrs/week
No compensation reported
Kenneth Wood
Treasurer
Director → Treasurer, 2023
On filings since 2022
0.5 hrs/week
No compensation reported
Former officers (19)
- Former: Joe Benton (2023) — Director
- Former: Arthur Sulzer (2020–2022) — Director
- Former: Jonathan Epstein MD (2020–2022) — Director
- Former: Joseph Benton (2020–2022) — Director
- Former: Max Kaiserman (2020–2022) — Director
- Former: Pamela Switlik (2020–2022) — Director
- Former: Peter H Havens (2020–2022) — Chairman
- Former: Timothy McGrath (2022) — Director
- Former: John Brady (2020–2021) — President & CEO
- Former: William L Lane III (2020–2021) — Director
- Former: Jennifer Blasy (2021) — Controller-
- Former: Anthony N Brady (2020) — Director
- Former: Gordon L Keen Jr. (2020) — Director -
- Former: James W McLane (2020) — Director
- Former: Jason Ingle (2020) — Director -
- Former: Jeff Theobald (2020) — Director
- Former: John A Gregg (2020) — Director
- Former: Jonathan Kemmerley (2020) — Director
- Former: Richard A Hayne (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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $226K, to Peter Seibert (CEO & President). 6 officers or directors reported compensation on that filing.
Frequently asked questions about Independence Seaport Museum
How large is Independence Seaport Museum?
Independence Seaport Museum reported $19.5M in total assets on its 2025 IRS Form 990. Its revenue that year was $3.3M.
What is Independence Seaport Museum?
Independence Seaport Museum is a public charity focused on Arts, Culture & Humanities, based in Philadelphia, PA. It holds $19.5M in total assets as of 2025.
Where does Independence Seaport Museum operate?
Independence Seaport Museum has awarded grants in Maryland, Pennsylvania.
What is Independence Seaport Museum's EIN?
Independence Seaport Museum's EIN (Employer Identification Number) is 23-1584971. 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
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2025 (received by the IRS May 5, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Independence Seaport Museum funds
Arts, Culture & Humanities Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Independence Seaport Museum's focus areas in our free grants database
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Independence Seaport Museum down — hundreds of funders to go?