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Old Mill Foundation

To maintain, preserve and operate the old mill, el molino viejo, which is an architectural landmark, an adobe monument to the legacy of the california missions and the …

Arts & Culture San Marino, CA EIN: 954549517 (IRS) Sign up to see website
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76
Integrity Assessment
Strong transparency
76/100 · methodology

About Old Mill Foundation

El Molino Viejo  is an architectural landmark, a fascinating link to the past and a notable California cultural center.  Its beautiful gardens welcome visitors throughout the year and the California Art Club Gallery features paintings of California scenes that change four times

Founded
Headquarters
San Marino, CA
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
A540
IRS subsection
501(c)(03)
Ruling date
Size
small

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1996

Mission

To maintain, preserve and operate the old mill, el molino viejo, which is an architectural landmark, an adobe monument to the legacy of the california missions and the spanish presence in early california, operate artistic, educational and community programs at the old mill.

Focus areas & reach

· What they work on and where
Cause tags
SDG alignment The 17 UN Sustainable Development Goals (SDGs) are the global agenda for ending poverty, protecting the planet, and ensuring prosperity by 2030. We tag each charity to the goals its work advances.

How it stacks up against peers

· vs. 8 similar arts & culture in United States
Program spending This charity: 78%
Peer average: 76%
Integrity Assessment This charity: 76
Peer average: 90

Concerns

· None found
No red flags found
Screened for IRS revocation history, Open investigations, Governance scandals, Related-party deals, Excessive exec comp.

Where every $1 goes

· FY2024 · IRS 990 (FY2024)
$0.78
Program$0.78
78% to programs beats the peer average (76%) and beats the Charity Navigator "highly efficient" threshold (75%).

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

GiveRadar's verified records show Old Mill Foundation with a complete profile, cross-referenced across 3 independent sources including the IRS.

  • GiveRadar holds a more complete profile for this organization than for 84% of the 133,127 arts & culture charities in the United States it tracks, because GiveRadar has verified its financial disclosures and its registration. Most of those have little verified data on record yet. View this cohort
  • It has more complete contact information than nearly all comparable charities, with a verified website, email, phone and address on record. See national comparisons
  • It has more complete governance disclosure than nearly all comparable charities, because GiveRadar has verified leadership, executive compensation, a mission statement and a founding date. See national comparisons
GiveRadar has verified
  • government registration
  • financial records (5 filed years)
  • disclosed leadership
  • a website
  • a contact email
  • third-party accreditation
Not yet verified by GiveRadar
  • a donation page
  • an owner-submitted profile claim

Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.

Common questions

· Auto-generated from filings + methodology

Old Mill Foundation is a registered arts & culture nonprofit based in San Marino, CA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1995 and has been operating for 31 years. Its EIN is 954549517. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 76/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $302K in annual revenue. 56 officers and directors are publicly disclosed. No red flags have been detected.

Old Mill Foundation's EIN (Employer Identification Number) is 954549517. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.

Old Mill Foundation has a GiveRadar Integrity Assessment of 76/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 76 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 78% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for arts & culture charities in United States is 90/100.

Old Mill Foundation is located in San Marino, CA, United States. The organization was established in 1995 and has been active for 31 years.

Based on official tax filings, Old Mill Foundation has $302K in annual revenue. It allocates 78% of expenses to programs and services. This is in line with the average of 76% for arts & culture charities in United States. Its revenue is below the peer average of $1M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Old Mill Foundation is classified as an Arts & Culture organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a small organization. It has $302K in annual revenue. The organization has 56 disclosed officers and directors.

No red flags have been detected for Old Mill Foundation. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

According to GiveRadar's records, Old Mill Foundation holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 78% of expenses go to programs (the peer average is 76%). GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.

El Molino Viejo  is an architectural landmark, a fascinating link to the past and a notable California cultural center.  Its beautiful gardens welcome visitors throughout the year and the California Art Club Gallery features paintings of California scenes that change four times Old Mill Foundation is classified as an arts & culture organization registered in United States. The organization was founded in 1995.

Among arts & culture charities registered in United States: It allocates 78% of expenses to programs, in line with the peer average of 76%. Its annual revenue of $302K is below the peer average of $1M.

Yes, donations to Old Mill Foundation are generally tax-deductible in the United States. Old Mill Foundation is a 501(c)(3) tax-exempt organization. Its EIN is 954549517, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.

Annual revenue
$100K-$1M
78% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

Filing history

5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2024, FY2023, FY2022, FY2021, FY2020.
Financial details are free - with a GiveRadar account

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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Staff & volunteers

From filings and published profiles

Employees
2

Leadership

From FY2024 filing

EI
Eileen B•••••
Treasurer

Officers & trustees (19)

Source: Public filings

See full names, roles, and stories

19 officers and trustees on file - free with a GiveRadar account.

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Latest news

From global news sources

No recent news coverage found

News coverage will appear here when articles mention this organization.

Activity timeline

Filings and press mentions, merged

Form filed
$0.3M revenue
FY2024
IRS 990
Form filed
$0.1M revenue
FY2023
IRS 990
Form filed
$0.2M revenue
FY2022
IRS 990
Form filed
$0.2M revenue
FY2021
IRS 990
Form filed
$0.2M revenue
FY2020
IRS 990

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Cause areas in United States

How many charities work in each area, with this charity's area highlighted.

Human Services 322,679
Education 195,586
Arts & Culture this charity 133,128
Advocacy & Civil Rights 128,026
Religion 114,636
Health 98,862
Community Development 56,086
Youth Development 53,450
See all cause areas in United States

Most common causes in United States

Causes charities work on most, with this charity's causes ticked.

Community Development 235,146
Education 159,016
Religion 103,741
Arts & Culture 101,203
Human Rights 76,926
Health 65,250
Youth Development 47,775
Animal Welfare 32,425

Sources and verification

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 56 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
75%

What we know and don't know

Exactly which public data we hold on this charity. Our score reflects transparency, not impact.

On record · 9
  • Financial data · FY2024 on record
  • Named leadership · 56 officers on file
  • Government registration · Registered with an official registry
  • Mission statement · Published
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Tax-deductibility · Verified
  • Founding date · 1995
Not available · 2
  • Executive pay
    Top-officer pay not disclosed
  • Programs & activities
    No named programs listed by the charity

Methodology

GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.

Read full methodology

Are you the owner or a board member?

If you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email [email protected] with the correct information. We review every request and respond within 30 days.

Quick facts about Old Mill Foundation

What is Old Mill Foundation?
Old Mill Foundation is a arts & culture publicly-supported charity (509(a)(2)) based in San Marino, United States. El Molino Viejo  is an architectural landmark, a fascinating link to the past and a notable California cultural center.  Its beautiful gardens welcome visitors throughout the year and the California Art Club Gallery features paintings of California scenes that change four times
When was Old Mill Foundation founded?
Old Mill Foundation was founded in 1995.
Who leads Old Mill Foundation?
Eileen Burton serves as Treasurer.
Where is Old Mill Foundation located?
Headquartered in San Marino, CA, United States.
What is Old Mill Foundation's annual budget?
Annual revenue for fiscal year 2024 is approximately $100K-$1M. 78% of expenses go to program services.
Is Old Mill Foundation trustworthy?
Old Mill Foundation has a GiveRadar Integrity Assessment of 76 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Old Mill Foundation's registration number?
IRS EIN: 954549517.
What is Old Mill Foundation's website?
http://www.old-mill.org