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THE MARITIME AQUARIUM AT NORWALK INC

EIN 06-1062912 SOUTH NORWALK, CT

Browse the largest nonprofits in Connecticut

Revenue 2024
$20,483,968
Expenses 2024
$17,173,437

Program services were 76.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
A500
Classification
2100
Street
10 N WATER ST

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

THE MARITIME AQUARIUM AT NORWALK SEEKS TO IGNITE A CONNECTION TO LONG ISLAND SOUND AND THE OCEAN TO ENRICH THE LIVES OF ALL PEOPLE AND INSPIRE ACTION TO PROTECT OUR BLUE PLANET.

Activities or mission (Part I)

SEE PART III, LINE 1.

  • THE MARITIME AQUARIUM AT NORWALK FULFILLS ITS MISSION THROUGH ITS LIVE ANIMAL EXHIBITS THAT FEATURE APPROXIMATELY 7,500 ANIMALS, COMPRISED OF ABOUT 300 SPECIES, INCLUDING THOSE THAT ARE ENDANGERED, THREATENED OR PROTECTED. WITH 75 EXHIBITS, INTERACTIVE AND IMMERSIVE EXPERIENCES, TOUCH TANKS, AND ANIMAL FEEDINGS, GUESTS CAN BETTER APPRECIATE THE WONDERS OF THE RICH MARINE BIODIVERSITY OF THE LONG ISLAND SOUND THE GLOBAL OCEAN AND LEARN HOW TO SERVE AS STEWARDS OF THE ENVIRONMENT. COMPLEMENTING ITS EXHIBITS AND GUEST ENGAGEMENT, THE AQUARIUM CONDUCTS NUMEROUS RESEARCH AND CONSERVATION PROJECTS WITH BOTH PROFESSIONAL RESEARCHERS AND COMMUNITY SCIENTISTS TO BETTER UNDERSTANDING THE ECOLOGY OF THE LONG ISLAND SOUND AND TO RESTORE ITS ECOSYSTEM TO A HEALTHY, SUSTAINABLE CONDITION. THE AQUARIUM FURTHER ENGAGES WITH GOVERNMENT AND INSTITUTIONAL PARTNERS TO SUPPORT THE LOCAL COMMUNITY AS A CULTURAL, EDUCATIONAL AND CONSERVATION LEADER.

    Expenses $11,077,863 · Revenue $9,011,929

  • THE MARITIME AQUARIUM AT NORWALK SPECIALIZES IN EDUCATION PROGRAMMING FOR SCIENCE, TECHNOLOGY, ENGINEERING AND MATH (STEM) AT ALL AGE LEVELS, FROM PRE-K THROUGH 12TH GRADE. EDUCATION PROGRAMS ARE CONDUCTED IN A WIDE VARIETY OF VENUES AND MEDIA: IN CLASSROOMS AT THE AQUARIUM; IN SCHOOLS THROUGHOUT THE STATE THROUGH OUR TRAVELING TEACHER PROGRAM; AS PART OF AFTERSCHOOL, WEEKEND PROGRAMS AND SUMMER CAMPS; THROUGH WHOLE SCHOOL PARTNERSHIPS; ONLINE VIRTUALLY THROUGHOUT THE WORLD THROUGH DIGITAL PROGRAMMING; ALONG COASTAL WATERWAYS AND SHORELINES THROUGH OUTDOOR PROGRAMMING; ON THE WATERS OF LONG ISLAND SOUND. PROGRAMS ARE DESIGNED TO IMPROVE STEM LITERACY AT ALL LEVELS USING LIVE ANIMALS AND INTERACTIVE EXPERIENCES IN THE LOCAL ENVIRONMENT OF THE LONG ISLAND SOUND. THE AQUARIUM HAS GROWING INVOLVEMENT IN PROFESSIONAL DEVELOPMENT TRAINING FOR TEACHERS SPECIFICALLY IN THE AREA OF STEM PROGRAMMING.

    Expenses $1,987,428 · Revenue $1,128,378

  • THE 4D THEATER OFFERS A SENSORY-BASED MOVIE EXPERIENCE FOR GUESTS TO ENJOY AND LEARN THROUGH THE ENTERTAINING AND EDUCATIONAL FILMS THAT PLAY IN THE THEATER. FILMS COVER ALL ASPECTS OF THE NATURAL WORLD. THE 4D THEATER ALSO SERVICES AS A VERSATILE VENUE FOR LECTURES, SCREENINGS, PRESENTATIONS, DISCUSSIONS, ETC., FOR THE COMMUNITY AND FOR PRIVATE GROUPS.

    Expenses $115,673 · Revenue $471,145

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Clayton Fowler

    CHAIR

    Total calculated
    $0
    Hours/week
    3
  • William Burnham

    1ST VICE CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Neil Beup

    2ND VICE CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Richard Hokin

    TREASURER

    Total calculated
    $0
    Hours/week
    1
  • Novelette Peterkin

    SECRETARY

    Total calculated
    $0
    Hours/week
    1
  • Earl Mix

    ASSISTANT TREASURER

    Total calculated
    $0
    Hours/week
    1
  • Kathryn Bowler Mitchell

    ASSISTANT SECRETARY

    Total calculated
    $0
    Hours/week
    1
  • Brian Bidolli

    TRUSTEE, EX OFFICIO

    Total calculated
    $0
    Hours/week
    1
  • Norm Bloom

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Kevin Conroy

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Robert Counihan

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Rev Dr Lindsay Curtis

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Cheryl De Vonish

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Sharon Giese

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Ann Gilmartin

    TRUSTEE, EX OFFICIO

    Total calculated
    $0
    Hours/week
    1
  • Jim Hall

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Melissa Joan Hart

    TRUSTEE (UNTIL 12/2024)

    Total calculated
    $0
    Hours/week
    1
  • Natalie Simpson Little

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Basil Mavroleon

    TRUSTEE (FROM 12/2024)

    Total calculated
    $0
    Hours/week
    1
  • Deborah McLean

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Michael Reilly

    TRUSTEE, EX OFFICIO

    Total calculated
    $0
    Hours/week
    1
  • The Hon Harry Rilling

    TRUSTEE, EX OFFICIO

    Total calculated
    $0
    Hours/week
    1
  • Diane Schlinkert

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Harlan Stone

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Michael Weinstock

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $20,483,968
    Expenses
    $17,173,437
    Contributions
    $9,364,957
    Grants paid
    $0
  • 2023
    Revenue
    $16,484,562
    Expenses
    $16,070,620
    Contributions
    $5,901,569
    Grants paid
    $0
  • 2022
    Revenue
    $16,120,847
    Expenses
    $14,326,913
    Contributions
    $5,760,877
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $18,240,112
    Expenses
    $13,247,564
    Assets (EOY)
    $22,903,050
  • 2020 · 990

    Revenue
    $11,308,442
    Expenses
    $9,771,927
    Assets (EOY)
    $19,089,489
  • 2019 · 990

    Revenue
    $7,998,320
    Expenses
    $10,537,490
    Assets (EOY)
    $20,986,448
  • 2018 · 990

    Revenue
    $16,220,239
    Expenses
    $12,549,173
    Assets (EOY)
    $22,770,312
  • 2017 · 990

    Revenue
    $11,441,286
    Expenses
    $12,906,434
    Assets (EOY)
    $22,871,999
  • 2017 · 990

    Revenue
    $11,441,286
    Expenses
    $12,906,434
    Assets (EOY)
    $22,871,999
  • 2016 · 990

    Revenue
    $12,454,887
    Expenses
    $12,233,431
    Assets (EOY)
    $20,063,762
  • 2015 · 990

    Revenue
    $11,085,191
    Expenses
    $11,363,815
    Assets (EOY)
    $19,592,410
  • 2014 · 990

    Revenue
    $11,272,679
    Expenses
    $10,751,193
    Assets (EOY)
    $19,857,371
  • 2013 · 990

    Revenue
    $10,877,852
    Expenses
    $10,403,938
    Assets (EOY)
    $18,989,670

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.