The Sonneborn Foundation Inc

Invitation Only

Bethesda, Maryland · EIN 91-1987558 · Private foundation

Grants paid (2024)$1,000

Organizations funded2

Typical grant$500

Total assets$761K

Half of its grants to organizations were between $500 and $500.

Funders like this one, matched to your nonprofit

Set your own state and causes to see which of thousands of foundations fit you best.

Find my best-fit funders - free

From the return

How to apply

On its return for tax year 2024 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.

Health1
Human Services1

Where it gives

100% of grants went outside Maryland.

Where it gives most, by cause

Its largest causes in a single state on the latest return. Each page shows the leading foundations that fund the same cause there, with their largest grants.

Grants paid in tax year 2024

Recipient	Location	Purpose	Amount
Givedirectly Inc	New York, NY	General	$500
The Fistula Foundation	San Jose, CA	General	$500

Giving by year

Tax year	Grants paid	Grant lines
2024	$1,000	2
2023	$88,250	5
2022	$7,000	4

Sources

IRS Form 990-PF, tax year 2024, filed May 15, 2026 - IRS e-file batch, object ID 202631359349101918
IRS Tax Exempt Organization Search for EIN 91-1987558
Profile updated Nov 10, 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.