Harold K L Castle Foundation — Grants, Assets & 990-PF Profile

Harold K L Castle Foundation is a private foundation based in Kailua, Hawaii with $171.3M in assets. Profile based on its IRS Form 990-PF filing, compiled by Grantoria.

$171.3Mtotal assets

1964IRS ruling year

🏆 Top 10% of 11,589 tracked U.S. private foundations by total assets.

Grants Harold K L Castle Foundation has awarded

40 grantees · $6.8M total in its latest IRS Form 990-PF. Largest recipients:

University Of Hawaii Foundation $2.1M
Hawaii Community Foundation (hcf) $850K
The Nature Conservancy Of Hawaii $280K
50can $200K
Hookuaaina $200K
Resources Legacy Fund $197K
Historic Hawaii Foundation $175K
Polynesian Voyaging Society $161K
Social Finance Inc $150K
Castle Medical Center $140K
Lanakila Pacific $133K
Pilina Education Alliance $125K
Kualoa-heeia Ecumenical Youth Project (key) $115K
University Of Virginia $112K
Purple Maia $111K
The Trust For Public Land $100K
Kuaaina Ulu Auamo (kua) $100K
City And County Of Honolulu Office Of Climate Change Sustainability And Res $100K
Maui United Way $100K
Conservation International Foundation $95K
Leadership Instituue Hawaii Department Of Education $80K
College Summit Inc Dba Peerforward $80K
Koolau Foundation $75K
Connected The National Center For College And Career $75K
Paepae O Heeia $75K

Grantees recorded on Form 990-PF Part XV; amounts aggregated by Grantoria. Linked names have full recipient profiles.

Giving history

Total grants paid by year (IRS Form 990-PF, Part XV).

FY2020$7.2M
FY2021$7.3M
FY2022$8M
FY2023$7.5M

About Harold K L Castle Foundation

TypePrivate foundation
HeadquartersKailua, Hawaii
EIN996005445
IRS ruling1964

Financial data from the organization's IRS Form 990-PF (Exempt Organizations Business Master File). View 990-PF filings on ProPublica →

Grants in this area

This foundation funds its focus area. While we build out its grantee history, explore open federal grants in the same space:

Related foundations

Foundations with a similar focus and profile:

Samuel N & Mary Castle Foundation$38.6M assets Doris Duke Foundation for Islamic Art$40.6M assets Cooke Foundation Limited$16M assets Hau Oli Mau Loa Foundation$155.9M assets Prisanlee Trust$12.5M assets Kosasa Foundation$159.4M assets

Foundations in Hawaii →

Liliuokalani Trust$934.9M assets Consuelo Zobel Alger Foundation$206.5M assets Kosasa Foundation$159.4M assets Hau Oli Mau Loa Foundation$155.9M assets NA Aina Kai Botanical Gardens$154.6M assets Clarence T C Ching Foundation$131.8M assets

Frequently asked questions

What is Harold K L Castle Foundation?

Harold K L Castle Foundation is a private foundation based in Kailua, Hawaii with $171.3M in total assets, as reported on its IRS Form 990-PF.

What is the EIN of Harold K L Castle Foundation?

Harold K L Castle Foundation's EIN is 996005445. View its 990-PF filings on ProPublica.

How do I apply for a grant from Harold K L Castle Foundation?

Private foundations like Harold K L Castle Foundation typically award grants by invitation or through their own application process — review its giving area and find official contact details in its IRS Form 990-PF. Grantoria is an independent directory and is not affiliated with Harold K L Castle Foundation. For grants open to public application right now, use the Grant Finder.

Source: IRS Exempt Organizations Business Master File (Form 990-PF), compiled by Grantoria. Financial figures reflect the latest available IRS data; grantee history is being added. Not affiliated with or endorsed by the foundation.