Walter & Sarah Diener Foundation

ROCKVILLE, MD EIN: 52-1357403

Walter & Sarah Diener Foundation is a private foundation, based in ROCKVILLE, MD. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $1.2M in total assets. In 2025, it awarded 14 grants totaling $191K. Net investment income was $94K.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$1.2M

-7.8% YoY

Annual Giving

$191K

+6.9% YoY

Grant Count

14

+7.7% YoY

Avg Grant Size

$14K

-0.7% YoY

About Walter & Sarah Diener Foundation

Based on IRS filings

Walter & Sarah Diener Foundation is a private foundation, based in ROCKVILLE, MD. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $1.2M in total assets. In 2025, it awarded 14 grants totaling $191K. Net investment income was $94K.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

6states

Cities

BaltimoreBethesdaBurtonsvilleCollege ParkColumbiaFort MillHagerstownMenlo ParkN BethesdaNew YorkOlneyParklandPikesvilleRockvilleSilveer SpringSilver SpringWashington

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$54K$108K$162K$216K20212022202320242025
Metric202520242023
Total Assets$1,170,703$1,269,724$1,353,415
Revenue$96,918$101,155$96,396
Expenses$195,939$184,846$160,026
Qualifying Distributions$190,708$178,360$154,000
Net Investment Income$94,399$90,402$82,471
Distributable Amount$182,520$164,550$150,745

Giving Over Time

Total grant dollars and number of grants per year

$0$48K$95K$143K$191K11 grants202115 grants202212 grants202313 grants202414 grants2025

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

HEBREW HOME OF GREATER W…$44KMAKOM$35KCHARLES SMITH LIFE COMMU…$28KUNIVERSITY OF MARYLAND H…$25KSUBURBAN HOSPITAL FOUNDA…$20KTHE DIENER SCHOOL$16KMEDSTAR HEALTH$5KCHILDRENS INN$5KBREAKTHROUGH T1D$5KBNAI ISRAEL$3K

Grant Size Distribution

65 grants across all recorded years

62<$50K3$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2025 IRS filing

From 2025 filing

NameTitleHoursCompensation
JEFFERY COHENPRESIDENT

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

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