Waterkeeper Alliance Inc logo

Waterkeeper Alliance Inc

Foundation · Grantmaker New York, NY EIN: 13-4071318 Website

See schedule o.

Key facts about Waterkeeper Alliance Inc

In short: Waterkeeper Alliance Inc gave $172K across 8 grants in 2025 (avg $22K), top state New York. Source: 2025 IRS Form 990.

EIN
13-4071318
Latest 990 filing
Form 990, 2025
Annual giving (2025)
$172,441
Grants made (2025)
8
Average grant
$21,555
Median grant
$15,070
Total assets
$7,016,094
Primary geography
New York (44% of itemized 2025 grant dollars)

Data from IRS Form 990, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990 · View filing

Total Assets

$7.0M

-11.3% YoY

Annual Giving

$172K

-47.5% YoY

Grant Count

8

-38.5% YoY

Avg Grant Size

$22K

-14.6% YoY

How Waterkeeper Alliance Inc gives

  • Giving fell 68% from 2022 to 2025. Method

From the foundation's IRS Form 990 filings. Methodology.

About Waterkeeper Alliance Inc

Based on IRS filings

Waterkeeper Alliance Inc is a nonprofit organization focused on Environment & Animals, based in New York, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $7.0M in total assets. In 2025, it awarded 8 grants totaling $172K. Net investment income was $143K.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

14states

Share of all 8 itemized 2025 grant dollars.

Cities

OssiningWashingtonAshevilleCharlotteConwayOaklandUpper MarlboroWilmingtonWinstonsalemBuffaloJacksonvilleStonevilleBynumCoral GablesMorehead CitySanta MonicaSpokaneTakoma ParkAshlandAtlanta

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K16 grants202015 grants202121 grants202213 grants202313 grants20248 grants2025

Grant Insights

How this funder distributes its grants

Top Recipients

Top 8 recipients in 2025

Riverkeeper: $42KRiverkeeper$42KBuffalo Niagara Waterkeeper: $34KBuffalo Niagara Waterkeeper$34KBaykeeper: $24KBaykeeper$24KCape Fear River Watch: $15KCape Fear River Watch$15KLos Angeles Waterkeeper: $15KLos Angeles Waterkeeper$15KMiami Waterkeeper: $15KMiami Waterkeeper$15KGood Stewards of Rockingham - Dan Riverkeeper: $14KGood Stewards of Rockingham -Dan Riverkeeper$14KPatuxent Riverkeeper: $13KPatuxent Riverkeeper$13K

Grant Size Distribution

70 grants across all recorded years

63<$50K7$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
RIVERKEEPER Ossining, NYWATERKEEPER ORGANIZING$42,000
BUFFALO NIAGARA WATERKEEPER Buffalo, NYWATERKEEPER ORGANIZING$34,000
BAYKEEPER Oakland, CAWATERKEEPER ORGANIZING$24,000
CAPE FEAR RIVER WATCH Wilmington, NCPURE FARMS PURE WATERS$15,139
LOS ANGELES WATERKEEPER Los Angeles, CAWATERKEEPER ORGANIZING$15,000
MIAMI WATERKEEPER Coral Gables, FLWATERKEEPER ORGANIZING$15,000
GOOD STEWARDS OF ROCKINGHAM - DAN RIVERKEEPER Stoneville, NCPURE FARMS PURE WATERS$13,975
PATUXENT RIVERKEEPER Upper Marlboro, MDWATERKEEPER ORGANIZING$13,327

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$5M$10M$15M$20M202020212022202320242025
Metric202520242023
Total Assets$7,016,094$7,914,199$9,064,151
Revenue$8,517,767$6,423,952$8,822,541
Expenses$7,321,222$7,339,611$6,915,327
Qualifying Distributions———
Net Investment Income$143,362$124,607$55,954
Distributable Amount———

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2023 (received by the IRS May 14, 2024)
  2. Added Form 990 for fiscal year 2025 (received by the IRS May 13, 2026)
  3. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Officers and directors from IRS filings

Waterkeeper Alliance Inc is led by Marc Yaggi, Chief Executive Officer since 2022 (on filings since 2020); 9 of 26 officers listed in 2025 are compensated.

Officers on the 2025 filing

  • Marc Yaggi

    Chief Executive Officer

    Executive Director → Chief Executive Officer, 2022

    On filings since 2020

    40 hrs/week

    $232K (2020) → $278K (2025)

  • Glenn Rink

    Chair

    On filings since 2020

    3 hrs/week

    No compensation reported

  • Daniel Estrin

    General Counsel & Legal Director

    General Counsel & Advocacy → General Counsel & Advocacy Director, 2023

    General Counsel & Advocacy Director → General Counsel & Legal Director, 2025

    On filings since 2020

    40 hrs/week

    $182K (2020) → $222K (2025)

  • Lori Harrison

    Communications & Marketing Director

    On filings since 2023

    40 hrs/week

    $129K (2023) → $140K (2025)

  • Bart Mihailovich

    Waterkeeper Membership Services Director

    New on the 2025 filing

    40 hrs/week

    $105K (2025)

  • Jacqueline Esposito

    Advocacy Director

    New on the 2025 filing

    40 hrs/week

    $135K (2025)

  • Michael Yerdon

    Development Director

    New on the 2025 filing

    40 hrs/week

    $170K (2025)

  • Cheryl Nenn

    Director

    On filings since 2020

    3 hrs/week

    No compensation reported

  • Lessing Stern

    Director

    On filings since 2020

    3 hrs/week

    No compensation reported

  • Tonya Bonitatibus

    Director

    On filings since 2020

    3 hrs/week

    No compensation reported

  • Kent Weed

    Director

    On filings since 2021

    3 hrs/week

    No compensation reported

  • Kristen Moore

    Director

    On filings since 2021

    3 hrs/week

    No compensation reported

  • Laura Turner Seydel

    Director

    On filings since 2021

    3 hrs/week

    No compensation reported

  • Betsy Nicholas

    Director

    Treasurer → Director, 2023

    On filings since 2022

    3 hrs/week

    No compensation reported

  • Bruno Monteferri

    Director

    On filings since 2022

    3 hrs/week

    No compensation reported

  • Theo Thomas

    Director

    On filings since 2023

    3 hrs/week

    No compensation reported

  • Gordon Brown

    Director

    On filings since 2024

    3 hrs/week

    No compensation reported

  • Kemp Burdette

    Director

    On filings since 2024

    3 hrs/week

    No compensation reported

  • Laura Reinsborough

    Director

    New on the 2025 filing

    3 hrs/week

    No compensation reported

  • Sharif Jamil

    Director

    New on the 2025 filing

    3 hrs/week

    No compensation reported

  • Xavier Cortada

    Director

    New on the 2025 filing

    3 hrs/week

    No compensation reported

  • Kelly Hunter Foster

    Senior Attorney

    On filings since 2020

    40 hrs/week

    $125K (2020) → $149K (2025)

  • Mary Beth Postman

    Deputy Director

    Secretary → Deputy Director & Secretary, 2021

    Deputy Director & Secretary → Deputy Director, 2022

    On filings since 2020

    40 hrs/week

    $205K (2020) → $250K (2025)

  • Rachel Cook

    Chief Finance & Operations Officer

    Finance & Operations Director → Chief Finance & Operations Officer, 2022

    On filings since 2020

    40 hrs/week

    $143K (2020) → $194K (2025)

  • Bruce Reznik

    Secretary

    Director → Secretary, 2023

    On filings since 2021

    3 hrs/week

    No compensation reported

  • Yvonne Zappulla

    Treasurer

    Director → Treasurer, 2023

    On filings since 2021

    3 hrs/week

    No compensation reported

Former officers (17)
  • Former: Chris Wilke (2023–2024) — Global Advocacy Manager
  • Former: Malick Sene (2024) — Director
  • Former: Gloria Reuben (2021–2023) — President
  • Former: Katherine Luscher (2023) — Training Director
  • Former: Kathryn Cecil (2023) — Fmr Development Director
  • Former: Mark Mattson (2020–2022) — Director
  • Former: Sharon Khan (2021–2022) — Recruiting Director
  • Former: Casi Callaway (2020–2021) — Director
  • Former: Karl Coplan (2020–2021) — Treasurer
  • Former: Maia Raposo (2020–2021) — Communications & Marketing Director
  • Former: Gary Wockner (2020) — Director
  • Former: Grey Hecht (2020) — Director
  • Former: Kris Moore (2020) — Director
  • Former: Peter Nichols (2020) — Organizing Director
  • Former: Robert F. Kennedy Jr. (2020) — President
  • Former: Terry Tamminen (2020) — Director
  • Former: Wendy Abrams (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

Marc Yaggi — Chief Executive Officer: $278KMarc YaggiChief Executive Officer$278KMary Beth Postman — Deputy Director: $250KMary Beth PostmanDeputy Director$250KDaniel Estrin — General Counsel/Legal Director: $222KDaniel EstrinGeneral Counsel/Legal Director$222KRachel Cook — Chief Finance & Operations Officer: $194KRachel CookChief Finance & Operations…$194KMichael Yerdon — Development Director: $170KMichael YerdonDevelopment Director$170KKelly Hunter Foster — Senior Attorney: $149KKelly Hunter FosterSenior Attorney$149KLori Harrison — Communications & Marketing Director: $140KLori HarrisonCommunications & Marketing…$140KJacqueline Esposito — Advocacy Director: $135KJacqueline EspositoAdvocacy Director$135KBart Mihailovich — Waterkeeper Membership Services Director: $105KBart MihailovichWaterkeeper Membership Services…$105K

Frequently asked questions about Waterkeeper Alliance Inc

How much does Waterkeeper Alliance Inc give each year?

Waterkeeper Alliance Inc gave $172K across 8 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $328K across 13 grants.

What is Waterkeeper Alliance Inc's typical grant size?

Waterkeeper Alliance Inc's median grant in 2025 was $15,070, and its average grant was $21,555, across 8 grants on its 2025 IRS Form 990.

Where does Waterkeeper Alliance Inc give grants?

Waterkeeper Alliance Inc's top state is New York, with 44% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were California (23%) and North Carolina (17%).

Does Waterkeeper Alliance Inc give general operating support?

Not in 2025: none of the 8 grants with a stated purpose on Waterkeeper Alliance Inc's 2025 IRS Form 990 were described as general or operating support. Recurring purposes include "Waterkeeper Organizing" (6 grants).

Who are Waterkeeper Alliance Inc's largest grantees?

Waterkeeper Alliance Inc's largest 2025 grantees include Riverkeeper ($42,000), Buffalo Niagara Waterkeeper ($34,000) and Baykeeper ($24,000), according to its 2025 IRS Form 990. Together they received 58% of its itemized 2025 grant dollars.

How large is Waterkeeper Alliance Inc?

Waterkeeper Alliance Inc reported $7.0M in total assets on its 2025 IRS Form 990. Its revenue that year was $8.5M.

What is Waterkeeper Alliance Inc?

Waterkeeper Alliance Inc is a nonprofit organization focused on Environment & Animals, based in New York, NY. It holds $7.0M in total assets as of 2025.

What is Waterkeeper Alliance Inc's EIN?

Waterkeeper Alliance Inc's EIN (Employer Identification Number) is 13-4071318. IRS Form 990 filing data is available on this page for 2020–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

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