The Margot Marsh Biodiversity Foundation

NEW YORK, NY EIN: 33-0683174

The Margot Marsh Biodiversity Foundation is a private foundation based in New York City, established in 1996 in California. The foundation is dedicated to supporting wildlife and conservation protection programs on a worldwide basis, with a particular emphasis on biodiversity conservation efforts.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$1.8M

-12.2% YoY

Annual Giving

$504K

+13.3% YoY

Grant Count

19

+0.0% YoY

Avg Grant Size

$27K

+13.3% YoY

Under IRS private-foundation payout rules, The Margot Marsh Biodiversity Foundation reported a distributable amount of $160K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation supports organizations that operate wildlife and conservation protection programs globally. Primary focus areas include:

  • Biodiversity conservation
  • Wildlife protection
  • Environmental and natural resource conservation

Grantmaking

The foundation does not accept unsolicited applications and operates on an invite-only basis.

Grant Range

$18,000–$24,000

How to Apply

**

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Geographic Focus

Where this funder awards grants

The foundation funds projects across multiple U.S. states and territories, including California, Colorado, Connecticut, Georgia, Maryland, Maine, Michigan, Minnesota, New Jersey, New York, Ohio, Oregon, Pennsylvania, Texas, Virginia, Washington, and Wisconsin.

Grant Distribution by State

21states
+13 more states

Cities

AllendaleArlingtonAsheboroAthensAtlantaAustinBeavertonBellevueBellinghamBerkeleyBerkleyBlacksburgBoca RatonBostonBronxBuffaloChevy ChaseChicagoCincinnatiColumbus

Financial History

Multi-year comparison from IRS filings

  • Total Assets: $1.8M–$3.3M (varies by reporting year)
  • Annual Distributions: $503,700–$523,000
  • Annual Expenses: $559,411
  • Revenue: $246,269
  • Giving Rate: 27.4% of assets

Tax Status: 501(c)(3) private foundation EIN: 33-0683174 Address: 1 Rockefeller Plaza, 7th Floor, New York, NY 10020

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$224K$448K$672K$896K201920202021202220232024
Metric202420232022
Total Assets$1,836,281$2,091,195$2,404,337
Revenue$359,015$246,269$504,125
Expenses$613,929$559,411$639,609
Qualifying Distributions$585,330$523,243$586,340
Net Investment Income$329,567$210,965$465,614
Distributable Amount$160,359$161,130$185,207

Giving Over Time

Total grant dollars and number of grants per year

$0$167K$334K$501K$668K26 grants201932 grants202019 grants202120 grants202219 grants202319 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

REWILD$150KGORILLA REHABILITATION A…$25KINTERNATIONAL PRIMATOLOG…$25KNEW NATURE FOUNDATION$25KREWILD$25KREWILD$25KWILD EARTH ALLIES$25KGRACE$25KCINCINNATI ZOO AND BOTAN…$25KFRIENDS OF BONOBOS$24K

Grant Size Distribution

109 grants across all recorded years

103<$50K1$50–100K5$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Rewild ($150,000), Gorilla Rehabilitation and Conservation Education ($25,000), International Primatological Society ($25,000).

RecipientPurposeAmount
FAUNA & FLORA INTERNATIONAL WASHINGTON, DCCONSERVATION OF MYANMARS ENDEMIC, CRITICALLY ENDANGERED POPA LANGUR (TRACHYPITHECUS POPA) MYANMAR, PHASE I$18,000
FRIENDS OF BONOBOS DURHAM, NCMONITORING REWILDED BONOBOS AT EKOLO YA BONOBO COMMUNITY RESERVE$24,000
GORILLA REHABILITATION AND CONSERVATION EDUCATION NIWOT, COUSALA CONSERVATION CORRIDOR TO PROTECT GRAUER'S GORILLA (GORILLA BERINGEI GRAUERI), NORTH KIVU, DR$25,000
INTERNATIONAL PRIMATOLOGICAL SOCIETY MILWAUKEE, WIPRIMATE CONSERVATION: THE BASICS & BEYOND THE PRE-CONGRESS TRAINING PROGRAM OF THE INTERNATIONAL PRIMATOLOGICAL SOCIETY$25,000
NEW NATURE FOUNDATION PHILADELPHIA, PAINCREASING COMMUNITY CONSERVATION IMPACT FOR THE LONG-TERM PRESERVATION OF UGANDA'S KIBALE NATIONAL PARK FOR ASHY RED COLOBUS, EASTERN CHIMPANZEES AND 10 ADDITIONAL PRIMATE SPECIES$25,000
REWILD AUSTIN, TX2024 PRIMATE ACTION FUND$150,000
REWILD AUSTIN, TXCONSERVATION OF HECKS MACAQUE (MACACA HECKI) AND JATNAS TARSIER (TARSIUS SUPRIATNAI) AT THE NANTU FOREST, SULAWESI, INDONESIA$25,000
REWILD AUSTIN, TXTHIRD CONGRESS OF THE AFRICAN PRIMATOLOGICAL SOCIETY$25,000
REWILD AUSTIN, TXSUPPORT FOR THE PUBLICATION OF THE IUCN SSC PRIMATE SPECIALIST GROUP JOURNAL PRIMATE CONSERVATION: PRINTING OF ISSUE 38 (2024)$11,200
WILD EARTH ALLIES CHEVY CHASE, MDCONSERVATION OF GRAUERS GORILLA (GORILLA BERINGEI GRAUERI) IN DEMOCRATIC REPUBLIC OF THE CONGO$25,000

Leadership & Key People

Leadership team and compensation from IRS filings

  • Russell Mittermeier – President
  • Rick Barongi – Secretary
  • H. Williamson Ghriskey Jr. – Vice President & Chief Financial Officer
  • William Konstant – Director
  • Kenneth Gladner – Director
  • Thayne Maynard – Director

Compensation Overview

From 2024 IRS filing

WILLIAM KONSTANTDIRECTOR$40KRUSSELL MITTERMEIERPRESIDENT$10KRICK BARONGISECRETARY$10KH WILLIAMSON GHRISKE…VP & CFP$10KKENNETH GLADNERDIRECTOR$5KTHAYNE MAYNARDDIRECTOR$5K

From 2024 filing

NameTitleHoursCompensation
RUSSELL MITTERMEIERPRESIDENT1$10,000
RICK BARONGISECRETARY1$10,000
H WILLIAMSON GHRISKEY JRVP & CFP1$10,000
WILLIAM KONSTANTDIRECTOR5$40,000
KENNETH GLADNERDIRECTOR1$5,000
THAYNE MAYNARDDIRECTOR1$5,000

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What does The Margot Marsh Biodiversity Foundation fund?

The foundation supports organizations that operate wildlife and conservation protection programs globally. Primary focus areas include: • Biodiversity conservation • Wildlife protection • Environmental and natural resource conservation

How do I apply for a grant from The Margot Marsh Biodiversity Foundation?

**Grant Activity:** • Annual giving: Approximately $500,000–$523,000 • Number of grants: 19 grants annually • Median grant size: $18,000–$24,000 • Grant range: $10,000–$150,000 **Application Process:** The foundation does not accept unsolicited applications and operates on an invite-only basis.

Where does The Margot Marsh Biodiversity Foundation make grants?

The foundation funds projects across multiple U.S. states and territories, including California, Colorado, Connecticut, Georgia, Maryland, Maine, Michigan, Minnesota, New Jersey, New York, Ohio, Oregon, Pennsylvania, Texas, Virginia, Washington, and Wisconsin.

What size grants does The Margot Marsh Biodiversity Foundation award?

In 2024, The Margot Marsh Biodiversity Foundation awarded 19 grants totaling $504K — an average of about $27K per grant, based on its IRS Form 990 filings.

How much is The Margot Marsh Biodiversity Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, The Margot Marsh Biodiversity Foundation reported a distributable amount of $160K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is The Margot Marsh Biodiversity Foundation's EIN?

The Margot Marsh Biodiversity Foundation's EIN (Employer Identification Number) is 33-0683174. IRS Form 990 filing data is available on this page for 2019–2024.

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Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.

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