Rose Marie Piper Foundation

Gave $135K in 2025

Sonoma, California · EIN 20-3389111 · Private foundation

Grants paid (2025)$135K

Organizations funded2

Typical grant$20,000

Total assets$2M

Half of its grants to organizations were between $20,000 and $41,000.

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From the return

How to apply

The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):

Contact	Rose Marie Piper Foundation
Address	370 West Napa Street, Sonoma CA 95476
Phone	(707) 938-0311
Form and materials	Application Form and required attachements:1. Name, address, contact name and title.2. Verification of tax exempt status.3. List of Board members and percent who donate money to the organization.4. List key staff members, titles and functions.5. Copy of last Form 990.6. Most recent audited financial statements.7. Detailed budget of project for which funds are sought.8. Give Mission Statement or charitable purpose.9. Title and description of project.All recipients must submit and accounting of project implementation and use of funds by June 1 of the year following the grant.
Deadlines	October 1
Restrictions	None

Wording as filed; text the foundation typed in capitals is shown in normal case. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.

What it funds

Share of grant lines on the latest return, classified from the purpose each grant states.

Children & Youth2
Human Services1

Where it gives

0% of grants went outside California.

California2

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 2025

Recipient	Location	Purpose	Amount
Sonoma Community Center	Sonoma, CA	Youth Activities	$41,000
Boys and Girls Club of Sonoma Valle	Sonoma, CA	Youth Activities	$20,000

The return also lists 4 grants to individuals ($74,000). We do not publish the names of individual recipients.

Giving by year

Tax year	Grants paid	Grant lines
2025	$135,000	6
2024	$141,000	6
2023	$45,000	2

Sources

IRS Form 990-PF, tax year 2025, filed Apr 23, 2026 - IRS e-file batch, object ID 202621139349100537
IRS Tax Exempt Organization Search for EIN 20-3389111
Profile updated Nov 11, 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.