The Robert B McMillen Foundation

Private foundation · Grantmaker Tucson, AZ EIN: 20-0011616

The Robert B McMillen Foundation is a private foundation, based in Tucson, AZ. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $6.8M in total assets. In 2024, it awarded 4 grants totaling $70K. Net investment income was $1.4M.

Key facts about The Robert B McMillen Foundation

In short: The Robert B McMillen Foundation gave $70K across 4 grants in 2024 (avg $17K), mostly in Washington. Source: 2024 IRS Form 990-PF.

EIN
20-0011616
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$69,660
Grants made (2024)
4
Average grant
$17,415
Median grant
$17,780
Total assets
$6,782,627
Primary geography
Washington (100% of itemized 2024 grant dollars)

Data from IRS Form 990-PF, 2024; updated September 2026.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$6.8M

+19.1% YoY

Annual Giving

$70K

-77.4% YoY

Grant Count

4

-76.5% YoY

Avg Grant Size

$17K

-3.8% YoY

Under IRS private-foundation payout rules, The Robert B McMillen Foundation reported a distributable amount of $329K for 2024 — the minimum it must pay out in qualifying distributions.

How The Robert B McMillen Foundation gives

  • Giving fell 78% from 2021 to 2024. Method
  • In 2024 it paid out 93% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

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

Open Grants

2 open opportunities from The Robert B McMillen Foundation

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

2states

Share of 2024 grant dollars across all 4 itemized grants.

Cities

SeattleBellinghamEllensburgTwispRedmondTucson

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K$400K20 grants2020 18 grants2021 19 grants2022 17 grants2023 4 grants2024

From 2020 to 2024, annual grant giving ranged from $70K (2024) to $320K (2021). In 2024 it made 4 grants totaling $70K.

Grant Insights

How this funder distributes its grants

Grant Size Distribution

78 grants across all recorded years

74<$50K$50–100K4$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 74 grants of 78 (95%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
4 individual scholarships Recipients not named —$69,660

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$500K$1M$1.5M$2M2020 2021 2022 2023 2024
Metric202420232022
Total Assets$6,782,627$5,693,241$6,205,643
Revenue$1,503,877$122,439$281,729
Expenses$415,119$635,261$611,145
Qualifying Distributions$304,659$546,662$534,377
Net Investment Income$1,360,095$57,237$198,197
Distributable Amount$329,256$328,128$348,534

Data update history

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Officers and directors from IRS filings

The Robert B McMillen Foundation is led by Cassandra Town, President on every filing since 2020; 2 of 6 officers listed in 2024 are compensated.

Officers on the 2024 filing

  • Cassandra Town

    President

    On filings since 2020

    40 hrs/week

    $100K (2020) → $115K (2024)

  • Michael McMillen

    Chairman

    On filings since 2020

    20 hrs/week

    $52K (2020) → $54K (2024)

  • Brian Bassir

    Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • Christi Clark

    Vice President

    On filings since 2020

    1 hr/week

    No compensation reported

  • Cynthia Petrie

    Treasurer

    On filings since 2020

    No compensation reported

  • Erin McMillen

    Secretary

    On filings since 2023

    1 hr/week

    No compensation reported

Former officers (2)
  • Former: David Larsen (2020–2023) — Past Secretary
  • Former: Mark Barrett (2020) — Director

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2024 IRS filing

Cassandra Town — President: $115KCassandra TownPresident$115KMichael McMillen — Chairman: $54KMichael McMillenChairman$54K

The highest reported compensation on the 2024 filing was $115K, to Cassandra Town (President). 2 officers or directors reported compensation on that filing.

Frequently asked questions about The Robert B McMillen Foundation

How much does The Robert B McMillen Foundation give each year?

The Robert B McMillen Foundation gave $70K across 4 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $308K across 17 grants.

What is The Robert B McMillen Foundation's typical grant size?

The Robert B McMillen Foundation's median grant in 2024 was $17,780, and its average grant was $17,415, across 4 grants on its 2024 IRS Form 990-PF.

Where does The Robert B McMillen Foundation give grants?

The Robert B McMillen Foundation gives mostly in Washington: 100% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there.

Does The Robert B McMillen Foundation give general operating support?

Not in 2024: none of the 4 grants with a stated purpose on The Robert B McMillen Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Digipen Scholarship" (4 grants).

How large is The Robert B McMillen Foundation?

The Robert B McMillen Foundation reported $6.8M in total assets on its 2024 IRS Form 990-PF. It paid out $305K in qualifying distributions that year, against a required minimum of $329K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What is The Robert B McMillen Foundation's EIN?

The Robert B McMillen Foundation's EIN (Employer Identification Number) is 20-0011616. IRS Form 990 filing data is available on this page for 2020–2024.

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

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