The John and Mary Neff Foundation
Invitation OnlyDecatur, Georgia · EIN 58-6403590 · Private foundation
Grants paid (2025)$2.5M
Organizations funded3
Typical grant$450,000
Total assets$1.3M
Half of its grants to organizations were between $316,033 and $1,766,607.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
66% of grants went outside Georgia.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Community Foundation of Greater Atlanta | Atlanta, GA | Enhance the quality of life in Atlanta by providing expert philanthropic services. | $1,766,607 |
| Mathmatical Assoc of America | Washington, DC | Public policy efforts to recruit and retain minority and female students into undergraduate mathematics and mathematics-intensive fields. | $450,000 |
| Society for Science & the Public | Washington DC, DC | To promote the understanding and appreciation of science and the vital role it plays in human advancement: to inform, educate, and inspire. | $316,033 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $2,532,640 | 3 |
| 2024 | $2,110,000 | 12 |
| 2023 | $1,830,000 | 20 |
Sources
- IRS Form 990-PF, tax year 2025, filed Sep 19, 2026 - IRS e-file batch, object ID 202602629349100300
- IRS Tax Exempt Organization Search for EIN 58-6403590
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.