Miller-Daffin Family Foundation

Private foundation · Grantmaker Manassas, VA EIN: 34-1973107

Miller-Daffin Family Foundation is a private foundation, based in Manassas, VA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $586K in total assets. In 2025, it awarded 2 grants totaling $45K. Net investment income was $165K.

Miller-Daffin Family Foundation at a glance

In short: Miller-Daffin Family Foundation gave $45K across 2 grants in 2025 (avg $22K), mostly in Ohio. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$44,936
+24.8% vs 2024
Grants made (2025)
2
-50.0% vs 2024
Average grant
$22,468
+149.6% vs 2024
Median grant
$22,468
Total assets
$585,792
+22.1% vs 2024
Primary geography
Ohio (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who Miller-Daffin Family Foundation funds

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2025

Bridgeport Elementary School: $23KBridgeport Elementary School$23KJefferson Avenue Elementary School: $22KJefferson Avenue ElementarySchool$22K

The largest 2025 recipient was Bridgeport Elementary School ($23K). Together the top 2 received $45K.

Grant Size Distribution

18 grants across all recorded years

18<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 18 grants of 18 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

3states

Share of 2025 grant dollars across all 2 itemized grants.

Cities

BridgeportShadysideCharoletteSchool RdBunnCharlotteManassas

How Miller-Daffin Family Foundation gives

  • Giving held roughly steady from 2022 to 2025 (+15%). Method
  • In 2025 it paid out 139% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$20K$40K$60K4 grants2020 4 grants2021 4 grants2022 4 grants2023 4 grants2024 2 grants2025

From 2020 to 2025, annual grant giving ranged from $35K (2023) to $45K (2025). In 2025 it made 2 grants totaling $45K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Bridgeport Elementary School Bridgeport, OHELA, Math, Science, and Social Studies$22,936
Jefferson Avenue Elementary School Shadyside, OHELA, Math, Assessment, Environmental$22,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$585,792$176,032$70,046$44,9362$59,392$165,378$42,733
2024$479,806$31,146$57,190$36,0004$47,504$21,460$36,319
2023$505,850$42,237$59,354$35,4264$48,541$33,424$32,724
2022$522,967$62,282$57,671$38,9194$46,361$52,817$33,545
2021$518,356$139,836$58,974$39,9914—$129,752$34,459
2020$438,170$46,668$49,100$39,7844———

Under IRS private-foundation payout rules, Miller-Daffin Family Foundation reported a distributable amount of $43K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Miller-Daffin Family Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • David Miller

    Trustee

    On filings since 2020

    0.1 hrs/week

    No compensation reported

  • Donald Miller

    Trustee

    On filings since 2020

    0.1 hrs/week

    No compensation reported

  • Susan M. Cleveland

    Trustee

    On filings since 2020

    0.1 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Miller-Daffin Family Foundation

How much does Miller-Daffin Family Foundation give each year?

Miller-Daffin Family Foundation gave $45K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $36K across 4 grants.

How large is Miller-Daffin Family Foundation?

Miller-Daffin Family Foundation reported $586K in total assets on its 2025 IRS Form 990-PF. It paid out $59K in qualifying distributions that year, against a required minimum of $43K (roughly 5% of its investment assets).

Where does Miller-Daffin Family Foundation operate?

Miller-Daffin Family Foundation has awarded grants in North Carolina, Ohio, Virginia.

What is Miller-Daffin Family Foundation's EIN?

Miller-Daffin Family Foundation's EIN (Employer Identification Number) is 34-1973107. IRS Form 990 filing data is available on this page for 2020–2025.

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

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS April 13, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS April 18, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS June 2, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS April 14, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS April 14, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS April 15, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Miller-Daffin Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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