M & I Pfister Foundation

LA JOLLA, CA EIN: 20-5994513

M & I Pfister Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LA JOLLA, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $22.1M in total assets. In 2024, it awarded 11 grants totaling $748K. Net investment income was $1.3M.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$22.1M

+4.5% YoY

Annual Giving

$748K

+36.6% YoY

Grant Count

11

+0.0% YoY

Avg Grant Size

$68K

+36.6% YoY

Under IRS private-foundation payout rules, M & I Pfister Foundation reported a distributable amount of $1.1M for 2024 — the minimum it must pay out in qualifying distributions.

About M & I Pfister Foundation

Based on IRS filings

M & I Pfister Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LA JOLLA, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $22.1M in total assets. In 2024, it awarded 11 grants totaling $748K. Net investment income was $1.3M.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Cities

BellaireDavisLa JollaNew YorkRichmondSan Diego

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$3M$5M$8M$11M20202021202220232024
Metric202420232022
Total Assets$22,055,536$21,096,365$18,567,369
Revenue$2,406,077$9,823,854$8,587,013
Expenses$929,948$782,862$677,750
Qualifying Distributions$841,249$587,589$615,652
Net Investment Income$1,290,462$8,483,020$524,530
Distributable Amount$1,105,821$889,769$767,608

Giving Over Time

Total grant dollars and number of grants per year

$0$187K$374K$561K$748K1 grants20208 grants20217 grants202211 grants202311 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

THE NEW CHILDREN'S MUSEUM$225KMUSEUM OF CONTEMPORARY A…$170KLIBRARY ASSOCIATION OF L…$100KLA JOLLA PLAYHOUSE$50KSAN DIEGO SYMPHONY ORCHE…$50KTHE ATHENAEUM$38KLA JOLLA HISTORICAL SOCI…$35KPLANNED PARENTHOOD$30KSAN DIEGO HUMANE SOCIETY$30KSAN DIEGO PARKS FOUNDATION$10K

Grant Size Distribution

38 grants across all recorded years

24<$50K7$50–100K6$100–250K1$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include The New Children's Museum ($225,000), Museum of Contemporary Art San Diego ($170,250), Library Association of La Jolla ($100,000).

RecipientPurposeAmount
LA JOLLA PLAYHOUSE LA JOLLA, CAGENERAL SUPPORT$50,000
MUSEUM OF CONTEMPORARY ART SAN DIEGO LA JOLLA, CAGENERAL SUPPORT$170,250
PLANNED PARENTHOOD SAN DIEGO, CAGENERAL SUPPORT$30,000
SAN DIEGO PARKS FOUNDATION SAN DIEGO, CAGENERAL SUPPORT$10,000
SAN DIEGO SYMPHONY ORCHESTRA SAN DIEGO, CAGENERAL SUPPORT$50,000
THE ATHENAEUM LA JOLLA, CAGENERAL SUPPORT$38,000
THE NEW CHILDREN'S MUSEUM SAN DIEGO, CAGENERAL SUPPORT$225,000
SAN DIEGO ZOO WILDLIFE ALLIANCE SAN DIEGO, CAGENERAL SUPPORT$10,000
SAN DIEGO HUMANE SOCIETY SAN DIEGO, CAGENERAL SUPPORT$30,000
LA JOLLA HISTORICAL SOCIETY LA JOLLA, CAGENERAL SUPPORT$35,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
MARYANNE PFISTERPRESIDENT1
IRWIN PFISTERTREASURER/SECRETARY1

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What is M & I Pfister Foundation?

M & I Pfister Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in LA JOLLA, CA. It holds $22.1M in total assets as of 2024.

How large is M & I Pfister Foundation?

As of 2024, M & I Pfister Foundation holds $22.1M in total assets with $2.4M in annual revenue. It awarded 11 grants totaling $748K in 2024.

Where does M & I Pfister Foundation operate?

M & I Pfister Foundation has awarded grants in California, New York, Texas, Virginia.

What size grants does M & I Pfister Foundation award?

In 2024, M & I Pfister Foundation awarded 11 grants totaling $748K — an average of about $68K per grant, based on its IRS Form 990 filings.

How much is M & I Pfister Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, M & I Pfister Foundation reported a distributable amount of $1.1M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is M & I Pfister Foundation's EIN?

M & I Pfister Foundation's EIN (Employer Identification Number) is 20-5994513. IRS Form 990 filing data is available on this page for 2020–2024.

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

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