The John and Mary Neff Foundation

DECATUR, GA EIN: 58-6403590

The John and Mary Neff Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in DECATUR, GA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.3M in total assets. In 2024, it awarded 12 grants totaling $2.1M. Net investment income was $568K.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$2.3M

-27.6% YoY

Annual Giving

$2.1M

+15.3% YoY

Grant Count

12

-40.0% YoY

Avg Grant Size

$176K

+92.2% YoY

Under IRS private-foundation payout rules, The John and Mary Neff Foundation reported a distributable amount of $164K for 2024 — the minimum it must pay out in qualifying distributions.

About The John and Mary Neff Foundation

Based on IRS filings

The John and Mary Neff Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in DECATUR, GA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.3M in total assets. In 2024, it awarded 12 grants totaling $2.1M. Net investment income was $568K.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Cities

AtlantaCambridgeDecaturMariettaStanfordWashingtonWashington Dc

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$1M$3M$4M$6M20202021202220232024
Metric202420232022
Total Assets$2,279,791$3,147,818$4,915,645
Revenue$1,291,230$121,810$75,695
Expenses$2,159,257$1,889,637$370,298
Qualifying Distributions$2,119,304$1,842,084$312,941
Net Investment Income$568,354$73,303$119,170
Distributable Amount$163,996$230,323$248,935

Giving Over Time

Total grant dollars and number of grants per year

$0$528K$1M$2M$2M1 grants20205 grants20218 grants202220 grants202312 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

CENTER FOR SCIENCE IN TH…$750KUNION OF CONCERNED SCIEN…$750KCOMMUNITY FOUNDATION OF …$250KSOCIETY FOR SCIENCE & TH…$200KMATHMATICAL ASSOC OF AME…$100KHORIZONS ATLANTA$20KGOOD SAMARITAN HEALTH CE…$10KNATIONAL PARK FOUNDATION$10KFOOD WELL ALLIANCE$5KGEORGIA ORGANICS$5K

Grant Size Distribution

46 grants across all recorded years

28<$50K2$50–100K9$100–250K5$250–500K2$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Center for Science in the Public Interest ($750,000), Union of Concerned Scientists ($750,000), Community Foundation of Greater Atlanta ($250,000).

RecipientPurposeAmount
CENTER FOR SCIENCE IN THE PUBLIC INTEREST WASHINGTON DC, DCTo envision a healthy population with reduced impact and burden of preventable diseases and an equitable food system that makes healthy, sustainable food accessible to all.$750,000
COMMUNITY FOUNDATION OF GREATER ATLANTA ATLANTA, GAEnhance the quality of life in Atlanta by providing expert philanthropic services.$250,000
FOOD WELL ALLIANCE ATLANTA, GATo provide resources and support to local Georgia growers to connect and build healthier communities through an equitable, local food ecosystem in which everyone can participate and benefit.$5,000
GEORGIA ORGANICS ATLANTA, GATo invest in Georgia's organic farmers for the health of our communities and the land.$5,000
GOOD SAMARITAN HEALTH CENTER ATLANTA, GAWork to remove the barriers preventing low-income families from obtaining access to quality healthcare in the Atlanta area.$10,000
HORIZONS ATLANTA ATLANTA, GAto support a six-week summer learning experience that supports students from underserved communities throughout their K-12 academic careers$20,000
MATHMATICAL ASSOC OF AMERICA WASHINGTON, DCPublic policy efforts to recruit and retain minority and female students into undergraduate mathematics and mathematics-intensive fields.$100,000
NATIONAL PARK FOUNDATION WASHINGTON, DCto preserve unimpaired the natural and cultural resources and values of the National Park System for the enjoyment, education, and inspiration of this and future generations.$10,000
SOCIETY FOR SCIENCE & THE PUBLIC WASHINGTON DC, DCTo promote the understanding and appreciation of science and the vital role it plays in human advancement: to inform, educate, and inspire.$200,000
UNION OF CONCERNED SCIENTISTS CAMBRIDGE, MAto use rigorous, independent science to solve our planet's most pressing problems$750,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

Connie L KertzTrustee$26K

From 2024 filing

NameTitleHoursCompensation
Connie L KertzTrustee1$25,795

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What is The John and Mary Neff Foundation?

The John and Mary Neff Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in DECATUR, GA. It holds $2.3M in total assets as of 2024.

How large is The John and Mary Neff Foundation?

As of 2024, The John and Mary Neff Foundation holds $2.3M in total assets with $1.3M in annual revenue. It awarded 12 grants totaling $2.1M in 2024.

Where does The John and Mary Neff Foundation operate?

The John and Mary Neff Foundation has awarded grants in California, District of Columbia, Georgia, Massachusetts.

What size grants does The John and Mary Neff Foundation award?

In 2024, The John and Mary Neff Foundation awarded 12 grants totaling $2.1M — an average of about $176K per grant, based on its IRS Form 990 filings.

How much is The John and Mary Neff Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, The John and Mary Neff Foundation reported a distributable amount of $164K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is The John and Mary Neff Foundation's EIN?

The John and Mary Neff Foundation's EIN (Employer Identification Number) is 58-6403590. IRS Form 990 filing data is available on this page for 2020–2024.

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Related Funders

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Data last updated April 2026. Sourced from IRS Form 990-PF filings.

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