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WATERKEEPERS CHESAPEAKE INC

EIN 45-4381850 SILVER SPRING, MD

Largest nonprofits in Maryland

Revenue 2025
$312,302
Expenses 2025
$365,852

Program services were 77.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C30
Classification
2000
Street
962 WAYNE AVE STE 610

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).

Other organizations at this address

1 other organization in the IRS Business Master File lists the same street address. matched by us

This address is a suite or unit (STE 610). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2025

Mission

ORGANIZATION MISSION: A COALITION OF INDEPENDENT PROGRAMS WORKING TO PROTECT THE WATERS OF THE CHESAPEAKE AND COASTAL BAYS. WATERKEEPERS CHESAPEAKE INC. AMPLIFIES THE VOICES OF EACH WATERKEEPER AND MOBILIZES THESE ORGANIZATIONS TO FIGHT POLLUTION AND CHAMPION CLEAN WATER.

  • PROTECT THE WATERS OF THE CHESAPEAKE AND COASTAL BAYS. WATERKEEPERS CHESAPEAKE INC. AMPLIFIES THE VOICES OF EACH WATERKEEPER AND MOBILIZES THESE ORGANIZATIONS TO FIGHT POLLUTION AND CHAMPION CLEAN WATER.

    Expenses $283,984

As filed on the 2025 return.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Ben Scheelk

    TREASURER

    Total calculated
    $0
    Hours/week
    1

  • Elle Bassett

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • Mark Frondorf

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Nina Beth Cardin

    CHAIR

    Total calculated
    $0
    Hours/week
    1

  • Staci Hartwell

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Evan Isaacson

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Tom Dunlap

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Matt Pluta

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Joy Piazza

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Chris Trumbauer

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    0

  • Bill Howard

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    0

  • Robin Broder

    ACTING EXECUTIVE DIRECTOR

    Total calculated
    $0
    Hours/week
    32

  • Tim Hill

    SECRETARY

    Total calculated
    $0
    Hours/week
    1

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

  • 2025
    Revenue
    $312,302
    Expenses
    $365,852
    Contributions
    $311,419
    Grants paid
    $90,000
  • 2023
    Revenue
    $309,053
    Expenses
    $601,341
    Contributions
    $292,319
    Grants paid
    $48,772
  • 2023
    Revenue
    $309,053
    Expenses
    $601,341
    Contributions
    $292,319
    Grants paid
    $48,772
  • 2022
    Revenue
    $478,320
    Expenses
    $855,874
    Contributions
    $460,965
    Grants paid
    $55,451

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
    $524,754
    Expenses
    $864,310
    Assets (EOY)
    $1,179,540

  • 2020 · 990

    Revenue
    $460,410
    Expenses
    $809,216
    Assets (EOY)
    $1,536,224

  • 2019 · 990

    Revenue
    $1,766,138
    Expenses
    $658,613
    Assets (EOY)
    $1,873,923

  • 2019 · 990

    Revenue
    $1,766,138
    Expenses
    $659,238
    Assets (EOY)
    $1,872,912

  • 2018 · 990

    Revenue
    $675,506
    Expenses
    $567,765
    Assets (EOY)
    $759,293

  • 2018 · 990

    Revenue
    $675,506
    Expenses
    $567,765
    Assets (EOY)
    $759,293

  • 2017 · 990

    Revenue
    $610,234
    Expenses
    $490,318
    Assets (EOY)
    $690,342

  • 2016 · 990

    Revenue
    $453,998
    Expenses
    $420,003
    Assets (EOY)
    $463,094

  • 2015 · 990

    Revenue
    $401,969
    Expenses
    $362,088
    Assets (EOY)
    $464,322

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.

Grants made

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

Where these grants went next →

Grants received

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

Other IRS files

Auto-Revocation List

  • Exemption revoked 15 November 2014, reinstated 15 November 2014.

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 2025, the newest we have parsed for this organization.