Henry L Guenther Foundation logo

Henry L Guenther Foundation

SEAL BEACH, CA EIN: 95-6026937 Website

The Henry L. Guenther Foundation is a private, non-profit charitable California corporation established in 1956 and tax-exempt since September 1958. Based in Seal Beach, California, the foundation operates as an independent grantmaking foundation that does not conduct or administer its own charitable programs. Instead, it makes grants to organizations with demonstrated competence and sound programs aligned with its funding priorities.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$115.9M

+6.1% YoY

Annual Giving

$4.2M

+21.3% YoY

Grant Count

58

+26.1% YoY

Avg Grant Size

$72K

-3.8% YoY

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation aims to improve social conditions, promote human welfare, and alleviate pain and suffering.

The foundation primarily applies its resources to benefit California residents, with particular emphasis on Southern California, in the following areas:

  • Medical Services: Improved and expanded medical services, medical equipment, and research technology
  • Youth Opportunities: Programs and services for young people
  • Education: Educational programs and initiatives
  • Individual and Family Services: Support for families and individuals in need
  • Veteran and Homeless Services: Programs serving veterans and homeless populations
  • Community Partnerships: Collaborative community-based initiatives

The foundation has historically funded capital campaigns, emergency services, housing opportunities, food distributions, and other humanitarian projects within its scope.

Grantmaking

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Geographic Focus

Where this funder awards grants

The foundation primarily serves California residents, with particular emphasis on Southern California.

Grant Distribution by State

1states

States

Cities

AlhambraAnaheimApple ValleyArcadiaBeaumontBell GardensBeverly HillsBuena ParkBurbankCamarilloCarlsbadCarsonChicoChinoClaremontCosta MesaCovinaCulver CityDuarteEncinitas

Financial History

Multi-year comparison from IRS filings

As of 2023:

  • Total Assets: $109,294,511
  • Total Revenue: $22,167,889
  • Total Expenses: $5,370,000
  • Total Liabilities: $0
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$6M$12M$18M$24M20202021202220232024
Metric202420232022
Total Assets$115,925,175$109,294,511$97,251,214
Revenue$7,474,003$22,167,889$3,965,896
Expenses$6,491,693$5,373,597$5,644,540
Qualifying Distributions$5,605,099$4,697,939$4,914,521
Net Investment Income$6,678,993$21,543,599$3,280,671
Distributable Amount$5,497,581$4,948,971$4,974,287

Giving Over Time

Total grant dollars and number of grants per year

$0$1M$2M$3M$4M42 grants202075 grants202151 grants202246 grants202358 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Rady Children's Hospital…$500KCedars-Sinai Medical Cen…$450KGlendale Adventist Medic…$300KSalk Institute for Biolo…$288KLong Beach Medical Center$250KBraille Institute of Ame…$200KSaint John's Health Cent…$200KJenesse Center Inc$150KMater Dei High School$100KRichstone Center Inc$85K

Grant Size Distribution

238 grants across all recorded years

152<$50K40$50–100K20$100–250K22$250–500K4$500K–1M$1–5M$5M+

Open Grants

1 open opportunity from Henry L Guenther Foundation

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

SUSANNE SUNDBERGCHAIRMAN OF THE BOARD$333KANN LEATHERBURYVICE PRESIDENT/SECRETARY$310KCHARLES LEATHERBURYTREASURER$290KRICHARD BATTAGLIADIRECTOR$111KPHILLIP BATTAGLIADIRECTOR$111KERIC MOOBERRYDIRECTOR$111K

From 2024 filing

NameTitleHoursCompensation
ANN LEATHERBURYVICE PRESIDENT/SECRETARY40$310,307
SUSANNE SUNDBERGCHAIRMAN OF THE BOARD40$333,048
SARAH C MILLIKENFORMER DIRECTOR/OFFICER
RICHARD BATTAGLIADIRECTOR20$110,636
CHARLES LEATHERBURYTREASURER40$289,914
PHILLIP BATTAGLIADIRECTOR20$110,636
ERIC MOOBERRYDIRECTOR20$110,636

Contact Information

Address: 3020 Old Ranch Parkway Suite 300 Seal Beach, CA 90740

Phone: (562) 799-5544

Email: acolorado@guentherfoundation.org

Website: https://guentherfoundation.org/

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

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