Hawaii · Private foundation
Harold Kl Castle Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
- $6.7M
- Granted FY2024(still arriving)
- 106
- Grants FY2024
- 84
- Organizations funded FY2023
- 49%
- First-time grantees FY2023
- Median grant, FY2024
- $25,000
- Largest grant, FY2024
- $550,000
- Organizations funded a year
- 55 to 84
- FY2020 to FY2023
- States reached, FY2024
- 3
- Total assets, FY2024
- $171M
- Applications
- Takes unsolicited applications
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2023, 49% of the organizations Harold Kl Castle Foundation funded were first-time grantees, receiving 26% of its grant dollars.
New vs renewed · share of each year
In FY2023, 74% of grant dollars renewed an existing relationship; $1.6M went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2024still arriving | 81 | $5.6M | 37% |
| FY2023 | 84 | $6.2M | 49% |
| FY2022 | 55 | $6.0M | 33% |
| FY2021 | 82 | $6.1M | 50% |
| FY2020 | 76 | $6.0M | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
Top grantees
Largest recipients by total granted, FY2020 to FY2024, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| University of Hawaii Foundation | $7,690,152 | 5 | 2% |
| 50can Inc | $717,500 | 5 | 2% |
| Resources Legacy Fund | $567,000 | 5 | 0% |
| Hawaii Conservation Alliance Foundation | $532,715 | 3 | 38% |
| Kualoa-Heeia Ecumenical Youth Project | $485,000 | 5 | 10% |
| Bobby Benson Center | $410,000 | 2 | 10% |
| Purple Maia Foundation | $397,080 | 3 | 12% |
| Hookuaaina | $395,176 | 3 | 21% |
| Chamber of Commerce of Hawaii | $387,360 | 5 | 6% |
| Center for Tomorrow's Leaders | $375,000 | 4 | 17% |
Show all 137 grantees
What it could do for these grantees
Plus 69 recipients with no EIN on record ($7.1M), not named here.
Where it is load-bearing
Harold Kl Castle Foundation supplied at least a quarter of the budget for 14 of its grantees at some point. The chart plots its 126 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Atherton Family Foundation · Aloha United Way Inc · Trustees of the Estate of Bernice Pauahi Bishop Dba Kamehameha Schools · The Harry and Jeanette Weinberg Foundation Inc · Bank of Hawaii Charitable Fdn · J Watumull Fund · First Insurance Company of Hawaii Charitable Foundation · Tradewind Group Foundation · Kosasa Foundation · Central Pacific Bank Foundation · Kaiser Foundation Health Plan Inc · Stupski Foundation
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Harold Kl Castle Foundation?
Find your warmest path to Harold Kl Castle Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.
About Harold Kl Castle Foundation
- How much does Harold Kl Castle Foundation give?
- Harold Kl Castle Foundation reported 106 grants totaling $6,685,968 in its FY2024 IRS filing. It funded between 55 and 84 organizations a year over FY2020 to FY2023.
- What does Harold Kl Castle Foundation fund?
- By grant dollars over FY2020 to FY2024, its largest causes are Education (36%), Environment (21%), Philanthropy (15%).
- Who are Harold Kl Castle Foundation's largest grantees?
- By total granted over FY2020 to FY2024: University of Hawaii Foundation ($7.7M), 50can Inc ($718k), Resources Legacy Fund ($567k).
- Does Harold Kl Castle Foundation fund new organizations?
- In FY2023, 49% of the organizations it funded were first-time grantees.
- Does Harold Kl Castle Foundation accept unsolicited applications?
- Its most recent filing reports that it accepts unsolicited grant applications.
- Which funders back the same organizations as Harold Kl Castle Foundation?
- Its strongest co-funders, measured against what their size predicts, include Atherton Family Foundation, Aloha United Way Inc, Trustees of the Estate of Bernice Pauahi Bishop Dba Kamehameha Schools.
- Where is Harold Kl Castle Foundation based?
- Harold Kl Castle Foundation is based in HI.
Play a game based on Harold Kl Castle’s filings →