George P & Ida Tenney Castle Trust

Private foundation · Grantmaker Honolulu, HI EIN: 99-6003320

George P & Ida Tenney Castle Trust is a private foundation, based in Honolulu, HI. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $3.8M in total assets. In 2025, it awarded 5 grants totaling $240K. Net investment income was $423K.

George P & Ida Tenney Castle Trust at a glance

In short: George P & Ida Tenney Castle Trust gave $240K across 5 grants in 2025 (avg $48K), mostly in Hawaii. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$240,000
+0.0% vs 2024
Grants made (2025)
5
+0.0% vs 2024
Average grant
$48,000
+0.0% vs 2024
Median grant
$40,000
Total assets
$3,755,920
+4.8% vs 2024
Primary geography
Hawaii (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

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

Who George P & Ida Tenney Castle Trust funds

How this funder distributes its grants

Top Recipients

Top 5 recipients in 2025

Kids Hurt Too Hawaii: $60KKids Hurt Too Hawaii$60KBoys & Girls Club of Hawaii: $60KBoys & Girls Club of Hawaii$60KNational Alliance on Mental Illness: $40KNational Alliance on MentalIllness$40KParents and Children Together: $40KParents and Children Together$40KKapiolani Health Foundation: $40KKapiolani Health Foundation$40K

The largest 2025 recipient was Kids Hurt Too Hawaii ($60K). Together the top 5 received $240K.

Grant Size Distribution

21 grants across all recorded years

9<$50K10$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was in the $50–100K range: 10 grants of 21 (48%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2025 grant dollars across all 5 itemized grants.

States

Cities

HonoluluWailuku

How George P & Ida Tenney Castle Trust gives

  • Giving held roughly steady from 2022 to 2025 (−4%). Method
  • In 2025 it paid out 95% 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.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K3 grants2021 3 grants2022 5 grants2023 5 grants2024 5 grants2025

From 2021 to 2025, annual grant giving ranged from $200K (2021) to $250K (2022). In 2025 it made 5 grants totaling $240K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Kids Hurt Too Hawaii Honolulu, HIUnrestricted Gift$60,000
Boys & Girls Club of Hawaii Honolulu, HIUnrestricted Gift$60,000
National Alliance on Mental Illness Honolulu, HIUnrestricted Gift$40,000
Parents and Children Together Wailuku, HIUnrestricted Gift$40,000
Kapiolani Health Foundation Honolulu, HIUnrestricted Gift$40,000
Your AI grants department

Ready to take the next step with George P & Ida Tenney Castle Trust?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$3,755,920$429,003$257,923$240,0005$245,021$422,623$257,754
2024$3,584,833$313,428$252,156$240,0005$245,111$308,035$236,373
2023$3,523,560$206,758$252,406$240,0005$243,296$201,168$217,030
2022$3,569,207$289,221$264,145$250,0003$254,117$283,440$235,440
2021$3,544,131$315,130$209,188$200,0003—$312,667$244,789

Under IRS private-foundation payout rules, George P & Ida Tenney Castle Trust reported a distributable amount of $258K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

George P & Ida Tenney Castle Trust's only listed officer is Bank Of Hawaii, Trustee on every filing since 2021 (compensated).

Officers on the 2025 filing

  • Bank Of Hawaii

    Trustee

    On filings since 2021

    1 hr/week

    $4K (2021) → $4K (2025)

Data from IRS Form 990 filings, 2021–2025. "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

Bank of Hawaii — Trustee: $4KBank of HawaiiTrustee$4K

The highest reported compensation on the 2025 filing was $4K, to Bank of Hawaii (Trustee).

Frequently asked questions about George P & Ida Tenney Castle Trust

How much does George P & Ida Tenney Castle Trust give each year?

George P & Ida Tenney Castle Trust gave $240K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $240K across 5 grants.

What is George P & Ida Tenney Castle Trust's typical grant size?

George P & Ida Tenney Castle Trust's median grant in 2025 was $40,000, and its average grant was $48,000, across 5 grants on its 2025 IRS Form 990-PF.

Where does George P & Ida Tenney Castle Trust give grants?

George P & Ida Tenney Castle Trust gives mostly in Hawaii: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Honolulu, HI (4 grants).

Does George P & Ida Tenney Castle Trust give general operating support?

Yes: 100% of George P & Ida Tenney Castle Trust's 2025 grants with a stated purpose (5 of 5) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are George P & Ida Tenney Castle Trust's largest grantees?

George P & Ida Tenney Castle Trust's largest 2025 grantees include Kids Hurt Too Hawaii ($60,000), Boys & Girls Club of Hawaii ($60,000) and National Alliance on Mental Illness ($40,000), according to its 2025 IRS Form 990-PF. Together they received 67% of its itemized 2025 grant dollars.

How large is George P & Ida Tenney Castle Trust?

George P & Ida Tenney Castle Trust reported $3.8M in total assets on its 2025 IRS Form 990-PF. It paid out $245K in qualifying distributions that year, against a required minimum of $258K (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 George P & Ida Tenney Castle Trust's EIN?

George P & Ida Tenney Castle Trust's EIN (Employer Identification Number) is 99-6003320. IRS Form 990 filing data is available on this page for 2021–2025.

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

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2021 (received by the IRS January 31, 2022)
  2. Updated Form 990-PF for fiscal year 2022 (received by the IRS February 10, 2023)
  3. Updated Form 990-PF for fiscal year 2023 (received by the IRS January 31, 2024)
  4. Updated Form 990-PF for fiscal year 2024 (received by the IRS February 6, 2025)
  5. Updated Form 990-PF for fiscal year 2025 (received by the IRS February 10, 2026)
  6. IRS filings on file for fiscal years 2021–2025

Explore Open Grants

Browse active grant opportunities in George P & Ida Tenney Castle Trust's focus areas in our free grants database

Similar Funders

Funders with grantees in common

Atherton Family Foundation

Honolulu, HI

The Atherton Family Foundation funds Hawai‘i-serving nonprofits in arts and culture, community development, education, environment, health, human services, spiritual development, and youth development, with an emphasis on collaborative systems change. Its stated average awards for 2026 are about $13,500 for program grants and $41,500 for capital grants. It accepts applications through its online process at scheduled deadlines.

Assets

$82.9M

Grants

1

Total Given

$5.6M

Locations Foundation

Honolulu, HI

Locations Foundation supports nonprofits and schools serving children and families, including youth programs, education, community health, and sustainability projects, primarily on Oahu, Hawaii. In 2024, grants ranged from $1,000 to $15,847, with a median of $5,000. The filing does not specify whether it accepts unsolicited requests.

Assets

$1.1M

Grants

36

Total Given

$191K

Bank of Hawaii Charitable Fdn

Honolulu, HI

The foundation supports community development, education, human services, and arts integration, with an emphasis on strengthening low- and moderate-income communities. Its 2024 grants ranged from $1,000 to $297,500, with a median of $25,000; 95% of funding went to organizations in Hawaii. Grant requests may be submitted at any time.

Philanthropy, Voluntarism & Grantmaking

Assets

$1.7M

Grants

40

Total Given

$1.4M

Central Pacific Bank Foundation

Honolulu, HI

The Central Pacific Bank Foundation funds education, health and human services, and ethnic and cultural preservation, primarily for organizations serving Hawaii. Its 2025 grants ranged from $2,500 to $110,000, with a median of $10,000; it accepts online applications from eligible 501(c)(3) organizations with a physical presence in Hawaii.

Philanthropy, Voluntarism & Grantmaking

Assets

$9.9M

Grants

41

Total Given

$816K

Hawaii Dental Service

Honolulu, HI

Through its HDS Foundation, Hawaii Dental Service funds oral health education, disease prevention, and access to dental care for underserved communities in Hawaii, Guam, and Saipan. Its 2024 grants had a median of $15,050 (ranging from $5,050 to $1.5 million), and eligible nonprofits and government programs can apply directly through the Foundation’s online application process.

Assets

$448.2M

Grants

21

Total Given

$1.9M

The Victoria S and Bradley L Geist Foundation

Honolulu, HI

The foundation funds projects for young people transitioning from foster care and capacity-building for organizations serving foster children and their caregivers in Hawaii. Its capacity-building grants are typically $5,000–$40,000; recent annual grant totals varied widely, so a typical overall award size is not stated. It says giving is not limited to preselected organizations and lists application dates of January 15, May 15, and September 15.

Philanthropy, Voluntarism & Grantmaking

Assets

$37.9M

Grants

1

Total Given

$3.2M

More similar funders

More Funders in Hawaii

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

Figures come from George P & Ida Tenney Castle Trust'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.

George P & Ida Tenney Castle Trust down — hundreds of funders to go?

Want AI to do this for you?