Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation

Private foundation · Grantmaker Tucson, AZ EIN: 20-2210574

DOROTHY HARMSEN AND BILL HARMSEN SR is a private foundation based in Tucson, Arizona. Its 2024 filing reports grants to charitable organizations in Arizona and Colorado, including organizations working in areas such as research, housing, youth support, food assistance, and services for people affected by illness or homelessness.

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation at a glance

In short: Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation gave $860K across 3 grants in 2025 (avg $287K), mostly in Arizona. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$860,000
+2.7% vs 2024
Grants made (2025)
3
-82.4% vs 2024
Average grant
$286,667
+482.2% vs 2024
Median grant
$350,000
Total assets
$5,948,627
-11.8% vs 2024
Primary geography
Arizona (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

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

How to apply to Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests.

Contact

Mailing address: PO Box 40339, Tucson, AZ 85717-0339
Phone: (520) 327-7575

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

University of Arizona Foundation: $500KUniversity of ArizonaFoundation$500KSteele Childrens Research Centerua Foun: $350KSteele Childrens ResearchCenterua Foun$350KTucson Cancer Conquerors: $10KTucson Cancer Conquerors$10K

The largest 2025 recipient was University of Arizona Foundation ($500K). Together the top 3 received $860K.

Grant Size Distribution

70 grants across all recorded years

54<$50K9$50–100K4$100–250K2$250–500K1$500K–1M$1–5M$5M+

The most common grant size was under $50K: 54 grants of 70 (77%).

Geographic Focus

Where this funder awards grants

In 2024, 87% of grant dollars went to recipients in Arizona and 13% to recipients in Colorado.

Grant Distribution by State

2states

Share of 2025 grant dollars across all 3 itemized grants.

Cities

TucsonDenverMontoroseFt CollinsPhoenix

How Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation gives

  • Giving grew 112% from 2022 to 2025. Method
  • In 2025 it paid out 681% 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$250K$500K$750K$1M22 grants2019 16 grants2020 18 grants2021 14 grants2022 18 grants2023 17 grants2024 3 grants2025

From 2019 to 2025, annual grant giving ranged from $370K (2019) to $860K (2025). In 2025 it made 3 grants totaling $860K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
University of Arizona Foundation Tucson, AZTo Assist the Organization$500,000
Steele Childrens Research Centerua Foun Tucson, AZTo Assist the Organization$350,000
Tucson Cancer Conquerors Tucson, AZTo Assist the Organization$10,000
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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$5,948,627$908,400$1,706,488$860,0003$976,317—$143,438
2024$6,746,705$656,175$1,599,564$837,00017$952,816—$129,128
2023$7,690,093$424,005$983,966$435,00018$552,479—$108,676
2022$8,250,054$234,356$1,076,456$405,00014$521,472——
2021$9,094,814$1,546,073$1,181,059$500,00018$617,003$972,889—
2020$8,725,366$3,081,926$874,319$420,00016—$2,726,826—
2019$6,517,759$1,213,080$769,887$370,00022—$913,710—

Under IRS private-foundation payout rules, Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation reported a distributable amount of $143K for 2025 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2024 grants included support for organizations with varied missions. The University of Arizona Foundation says it supports and enhances the university’s mission through the development and management of private support. Habitat for Humanity Tucson says it brings people together to build homes, community, and hope. Youth On Their Own says it supports the graduation and continued success of youth experiencing homelessness in Pima County.

Other 2024 recipients describe their work as preparing and delivering medically tailored meals to people with life-threatening illnesses (Project Angel Heart); preventing homelessness and providing housing and services (Colorado Coalition for the Homeless); and educating, supporting, and empowering people affected by cancer (an individual recipient). The foundation also gave to Big Brothers Big Sisters of Tucson, whose stated work includes supporting its Tucson mentoring program.

Grantmaking

In 2024, the foundation reported 17 grants totaling $837,000. Grants ranged from $2,000 to $450,000, with a median grant of $15,000. The largest reported awards included $450,000 to Steele Children’s Research Center, $100,000 to the University of Arizona Foundation, $75,000 to Habitat for Humanity Tucson, and $50,000 to Habitat for Humanity Metro Denver. Other listed grants included $20,000 each to Nourish and Youth On Their Own, and $15,000 each to Colorado Coalition for the Homeless, Community Food Bank of Southern Arizona, Dumb Friends League, and Project Angel Heart. The foundation also gave $10,000 to an individual recipient, Big Brothers Big Sisters of Tucson, and an individual recipient Its 2025 filing, the latest on this page, reports 3 grants totaling $860,000.

Leadership & Key People

Leadership team and compensation from IRS filings

Ziad Meziab was listed as president on the 2024 filing.

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation is led by Ziad Meziab, President on every filing since 2019 — the only officer listed, and compensated.

Officers on the 2025 filing

  • Ziad Meziab

    President

    On filings since 2019

    40 hrs/week

    $180K (2019) → $210K (2025)

Former officers (1)
  • Former: J. Dennis Bartlett (2019–2022) — Treasurer

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Ziad Meziab — President: $210KZiad MeziabPresident$210K

The highest reported compensation on the 2025 filing was $210K, to Ziad Meziab (President).

Frequently asked questions about Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation

How much does Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation give each year?

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation gave $860K across 3 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $837K across 17 grants.

What is Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation's typical grant size?

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation's median grant in 2025 was $350,000, and its average grant was $286,667, across 3 grants on its 2025 IRS Form 990-PF.

Where does Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation give grants?

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation gives mostly in Arizona: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Tucson, AZ (3 grants).

Does Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation give general operating support?

Not in 2025: none of the 3 grants with a stated purpose on Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "To Assist the Organization" (3 grants).

How large is Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation?

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation reported $5.9M in total assets on its 2025 IRS Form 990-PF. It paid out $976K in qualifying distributions that year, against a required minimum of $143K (roughly 5% of its investment assets).

What does Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation fund?

No mission statement for the foundation is provided. Its 2024 grants included support for organizations with varied missions. The University of Arizona Foundation says it supports and enhances the university’s mission through the development and management of private support. See mission & focus areas ↑

How do I apply for a grant from Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation's EIN?

Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation's EIN (Employer Identification Number) is 20-2210574. IRS Form 990 filing data is available on this page for 2019–2025.

Does Dorothy Harmsen and Bill Harmsen Sr Charitable Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

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

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS May 14, 2020)
  2. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 12, 2021)
  3. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
  4. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 15, 2023)
  5. Added Form 990-PF for fiscal year 2025 (received by the IRS August 31, 2026)
  6. IRS filings on file for fiscal years 2020–2024

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

Figures come from Dorothy Harmsen and Bill Harmsen Sr Charitable 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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