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Armstrong Foundation

Private foundation · Grantmaker Honolulu, HI EIN: 99-0308992 Website

The Armstrong Foundation is a private foundation based in Honolulu, Hawaii. In filing year 2024, it reported 11 charitable grants totaling $749,300 to organizations in Hawaii and other states.

Armstrong Foundation at a glance

In short: Armstrong Foundation gave $749K across 11 grants in 2024 (avg $68K), mostly in Hawaii. 45% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$749,300
+581.2% vs 2023
Grants made (2024)
11
+57.1% vs 2023
Average grant
$68,118
+333.5% vs 2023
Median grant
$1,500
Total assets
$172,828
-58.9% vs 2023
New grantees (estimate)
45% first-time grantees (5 of 11, 2024; small sample)
Primary geography
Hawaii (54% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to Armstrong Foundation

How to Apply

The filing says the board reviews requests from recognized 501(c)(3) organizations and makes contributions based on the merit of applications received. Applicants should submit a letter from a recognized 501(c)(3) organization stating the amount needed and purpose of the funds. The filing says there are no submission deadlines.

Contact

Application contact: Robert H Armstrong
Mailing address: 80 Sand Island Access Road Ste 209, Honolulu, HI 96819
Phone: (808) 848-2484
Email: bob@armstrongbuilders.com

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

Who Armstrong Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

American Cancer Society: $343KAmerican Cancer Society$343KHawaii Community Foundation: $300KHawaii Community Foundation$300KHawaiian Humane Society: $89KHawaiian Humane Society$89KNA Kama Kai: $10KNA Kama Kai$10KAlzheimer's Association: $3KAlzheimer's Association$3KFriends of Waikiki Aquarium: $2KFriends of Waikiki Aquarium$2KThe Outdoor Circle: $1KThe Outdoor Circle$1KYMCA of Honolulu: $1KYMCA of Honolulu$1KThe Nature Conservatory: $1KThe Nature Conservatory$1KUS Holocaust Memorial Museum: $200US Holocaust Memorial Museum$200

The largest 2024 recipient was American Cancer Society ($343K). Together the top 10 received $749K.

Grant Size Distribution

64 grants across all recorded years

60<$50K2$50–100K$100–250K2$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 60 grants of 64 (94%).

Geographic Focus

Where this funder awards grants

In 2024, 54% of grant dollars went to recipients in Hawaii and 46% to recipients in Maryland. The filing also lists recipients in Illinois, Virginia, and Washington, DC, each accounting for 0% of grant dollars when rounded.

Grant Distribution by State

8states

Share of 2024 grant dollars across all 11 itemized grants.

Cities

HonoluluEwa BeachWashingtonArlingtonChicagoKahuluiBostonFort WorthHagerstownKiheiNew YorkSw WashingtonVirginia BeachWaianaeWailukuWaipahu

Is Armstrong Foundation open to new grantees?

45%

first-time grantees, 2024

In 2024, 5 of 11 grantees (45%) were first-time recipients. With only 11 grantees, that is a small sample: one grantee more or less moves the share by about 9 points. First grants averaged $131K; repeat grants $16K. How we count

Medians: $10K first-time, $1K repeat.

  • 36% of 2024 grantees were also funded in 2023. Method
  • Giving grew 7705% from 2021 to 2024. Method
  • In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K$800K31 grants2020 7 grants2021 8 grants2022 7 grants2023 11 grants2024

From 2020 to 2024, annual grant giving ranged from $6K (2022) to $749K (2024). In 2024 it made 11 grants totaling $749K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
American Cancer Society Hagerstown, MDCharitable$343,000
Hawaii Community Foundation Kahului, HICharitable$300,000
Hawaiian Humane Society Honolulu, HICharitable$89,000
NA Kama Kai Waianae, HICharitable$10,000
Alzheimer's Association Chicago, ILCharitable$2,500
Friends of Waikiki Aquarium Honolulu, HICharitable$1,500
The Outdoor Circle Honolulu, HICharitable$1,000
YMCA of Honolulu Honolulu, HICharitable$1,000
The Nature Conservatory Arlington, VACharitable$1,000
US Holocaust Memorial Museum SW Washington, DCCharitable$200
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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
2024$172,828$501,317$751,237$749,30011$749,300$15,012$12,135
2023$420,996$526,873$111,506$110,0007$109,800$10,279$9,690
2022$5,626$5,000$7,054$6,3508$5,350—$232
2021$7,683—$11,203$9,6007$9,500—$730
2020$18,886$100,000$90,404$88,69531——$390

Under IRS private-foundation payout rules, Armstrong Foundation reported a distributable amount of $12K for 2024 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2024 grants included support for the Hawaiian Humane Society, whose mission is to improve animal welfare through care, education, legislation, and prevention, and to promote the human-animal bond and humane treatment of all animals. Nā Kama Kai describes its work as empowering children by connecting them to the ocean and land and nurturing care for the natural environment. The Outdoor Circle describes itself as a statewide environmental nonprofit working to protect Hawaii’s natural and scenic beauty through community projects, education, and advocacy.

Grantmaking

In 2024, the foundation made 11 grants totaling $749,300. Grants ranged from $100 to $343,000, with a median grant of $1,500. Its largest grants were $343,000 to the American Cancer Society in Hagerstown, Maryland; $300,000 to the Hawaii Community Foundation in Kahului, Hawaii; and $89,000 to the Hawaiian Humane Society in Honolulu.

The foundation also gave $10,000 to Nā Kama Kai and $1,500 to Friends of Waikiki Aquarium. The other listed grants included $2,500 to the Alzheimer’s Association, $1,000 each to The Outdoor Circle, YMCA of Honolulu, and The Nature Conservancy, $200 to the US Holocaust Memorial Museum, and $100 to AMVETS-Hawaii.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Robert H. Armstrong as president, treasurer, and director; Kelly R. Armstrong as vice president, secretary, and director; and Dean I. Sugimoto as director.

Armstrong Foundation is led by Robert H. Armstrong, President, Treasurer & Director on every filing since 2020; none of the 3 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Robert H. Armstrong

    President, Treasurer & Director

    On filings since 2020

    No compensation reported

  • Dean I. Sugimoto

    Director

    On filings since 2020

    No compensation reported

  • Kelly R. Armstrong

    Vice President, Secretary & Director

    On filings since 2020

    No compensation reported

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.

Frequently asked questions about Armstrong Foundation

How much does Armstrong Foundation give each year?

Armstrong Foundation gave $749K across 11 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $110K across 7 grants.

What is Armstrong Foundation's typical grant size?

Armstrong Foundation's median grant in 2024 was $1,500, and its average grant was $68,118, across 11 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Armstrong Foundation that year got $131K on average.

Where does Armstrong Foundation give grants?

Armstrong Foundation gives mostly in Hawaii: 54% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was Maryland (46%). The most frequent recipient cities were Honolulu, HI (5 grants).

Does Armstrong Foundation give general operating support?

Not in 2024: none of the 11 grants with a stated purpose on Armstrong Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (11 grants).

Who are Armstrong Foundation's largest grantees?

Armstrong Foundation's largest 2024 grantees include American Cancer Society ($343,000), Hawaii Community Foundation ($300,000) and Hawaiian Humane Society ($89,000), according to its 2024 IRS Form 990-PF. Together they received 98% of its itemized 2024 grant dollars.

How large is Armstrong Foundation?

Armstrong Foundation reported $173K in total assets on its 2024 IRS Form 990-PF. It paid out $749K in qualifying distributions that year, against a required minimum of $12K (roughly 5% of its investment assets).

What does Armstrong Foundation fund?

No mission statement for the foundation is provided. Its 2024 grants included support for the Hawaiian Humane Society, whose mission is to improve animal welfare through care, education, legislation, and prevention, and to promote the human-animal bond and humane treatment of all animals. See mission & focus areas ↑

How do I apply for a grant from Armstrong Foundation?

The filing says the board reviews requests from recognized 501(c)(3) organizations and makes contributions based on the merit of applications received. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Armstrong Foundation's EIN?

Armstrong Foundation's EIN (Employer Identification Number) is 99-0308992. IRS Form 990 filing data is available on this page for 2020–2024.

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

Data update history

(1)

When this profile's IRS filing data changed on Grantable

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

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Cite this profile

Grantable. (2026). Armstrong Foundation funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/armstrong-foundation-morg_775047f95c0f42958021d78553371f6c

BibTeX
@misc{grantable_990308992_2026,
  author       = {{Grantable}},
  title        = {{Armstrong Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/armstrong-foundation-morg_775047f95c0f42958021d78553371f6c},
  note         = {Accessed 2026-10-12. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from Armstrong 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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