1. Directory of nonprofits
  2. Locations
  3. Hawaii
  4. Hawaii private foundations

Hawaii private foundations

There are 800 private foundations in Hawaii. Combined, these Hawaiian private foundations employ 239 people, earn more than $407 million in revenue each year, and have assets of $3 billion.
Skip to:
Related directory pages:

Types of private foundations in Hawaii

Nonprofit typeNumberRevenues
Private foundations
 
800
 
$406,881,768
Corporate foundations
 
24
 
$9,365,262
Showing 2 of 2 categories

Private foundations by major Hawaii cities

Metro areaNonprofitsRevenues
Urban Honolulu
 
609
 
$385,278,785
Kahului
 
72
 
$11,169,316
Showing 2 of 2 metros

Sizes of private foundations in Hawaii

Revenues per organizationNumber of organizations
< $250k
 
480
$250k to $1M
 
84
$1M to $5M
 
44
$5M to $25M
 
9
$25M to $100M
 
1
$100M+
 
1
Key takeaways for revenue stats:

Directory of private foundations in Hawaii

Want to add filters to this list, or drill down on results in detail? Open in the Cause IQ search interface
1-20 of 800

Harold K.L. Castle Foundation

Helping to close the achievement and preparation gaps in public education in Hawaii, restore nearshore marine ecosystems, and strengthen Windward Oahu communities.
Revenue
$8.3m
Assets
$171.3m
Employees
7
EIN
99-6005445
IRS type
501(c)(3)

Queen Liliuokalani Trust

To serve orphan and destitute children with preference given to Native Hawaiian children. The trust serves approximately 10,000 children annually through direct services and reaches thousands more through collaboration with community partners.
Revenue
$141.9m
Assets
$934.9m
Employees
163
EIN
99-0078890
IRS type
501(c)(3)

Mcinerny Foundation

The Mcinerny Foundation is a private foundation located in Honolulu, HI. The foundation made 89 grants last year. Some of their grantees include State Of Hawaii Doe - Waipahu High School. The trustee for the foundation is Bank Of Hawaii.
Revenue
$9.4m
Assets
$127.4m
Employees
1
EIN
99-6002356
IRS type
501(c)(3)

The Victoria S and Bradley L Geist Foundation

The Victoria S and Bradley L Geist Foundation is a private foundation based in Honolulu, HI. The trustee is Gary S. Morimoto. The foundation made $1,310,593 in annual grants last year.
Revenue
$6.1m
Assets
$37.0m
Employees
1
EIN
99-0163400
IRS type
501(c)(3)

Clarence T C Ching Foundation

As a charitable, private 501(c)(3) organization, Clarence T.C. Ching Foundation annually donates monies to public and private educational institutions and health and social service organizations.
Revenue
$6.3m
Assets
$131.8m
Employees
0
EIN
99-6014634
IRS type
501(c)(3)

Consuelo Foundation

To operate and support programs in Hawai'i and the Philippines that prevent and treat abuse, neglect and the exploitation of children, women and families.
Revenue
$13.7m
Assets
$206.5m
Employees
10
EIN
99-0266163
IRS type
501(c)(3)

Kosasa Foundation

The Kosasa Foundation is a private foundation located in Honolulu, HI that made 56 grants last year. Its grantees include Kuakini Medical Center.
Revenue
$29.8m
Assets
$159.4m
Employees
1
EIN
99-0313279
IRS type
501(c)(3)

Hau'oli Mau Loa Foundation

The Hau'oli Mau Loa Foundation is a Honolulu private grantmaker supporting children, first-generation learners, affordable family housing, environmental stewardship, field building, and humanitarian relief.
Revenue
$8.9m
Assets
$155.9m
Employees
8
EIN
13-3588071
IRS type
501(c)(3)

Atherton Family Foundation

The Atherton Family Foundation is a private foundation located in Honolulu, HI. It makes annual grants totaling $5,046,045 and has total assets of $92,704,450.
Revenue
$9.4m
Assets
$82.9m
Employees
0
EIN
51-0175971
IRS type
501(c)(3)

Samuel N and Mary Castle Foundation

The Samuel N and Mary Castle Foundation is a private foundation located in Honolulu, HI. The trustees are Alfred L. Castle and Cynthia Quisenberry. The amount of annual grants made is $2,039,694.
Revenue
$3.7m
Assets
$38.6m
Employees
1
EIN
99-6003321
IRS type
501(c)(3)

Germaine Hope Brennan Foundation

The Germaine Hope Brennan Foundation is a private foundation located in Honolulu, HI that primarily funds charitable organizations such as the University of Hawaii Foundation and others. It made two grants last year to support its mission.
Revenue
$3.1m
Assets
$15.1m
Employees
1
EIN
76-0705445
IRS type
501(c)(3)

Kukuiolono Park Trust Estate

Kukuiolono Park Trust Estate is a private foundation whose purpose is the operation of park for public use. It is located in Honolulu, HI.
Revenue
$2.0m
Assets
$5.5m
Employees
3
EIN
99-6003335
IRS type
501(c)(3)

Lunalilo Home

Lunalilo Home is a nonprofit private foundation located in Honolulu, HI that provides room and board, dietary service, laundry & linen, recreational therapy, transportation & limited medical services.
Revenue
$4.9m
Assets
$13.7m
Employees
22
EIN
99-0075244
IRS type
501(c)(3)

The Strong Foundation / Strong Carter Clinic

The Strong Foundation / Strong Carter Clinic is a private foundation located in Honolulu, HI. It made 21 grants last year. Its purpose is to extend the role model reach for youth and build community through water sports, planning for Moananuiakea, Pe...
Revenue
$2.5m
Assets
$24.1m
Employees
0
EIN
99-0090807
IRS type
501(c)(3)

George N Wilcox General Trust

The George N Wilcox General Trust is a private foundation located in Honolulu, HI. It primarily funds the 2020-2021 tuition aid program, ymca fall day camp - reallocation to winter day camp (12/21/2020 - 12/31/2020), and unsolicited grant for general...
Revenue
$2.6m
Assets
$20.9m
Employees
0
EIN
99-6002445
IRS type
501(c)(3)

Peter Faun Irrevocable Trust

The Peter Faun Irrevocable Trust is not mentioned in the website text. The website is dedicated to The Feng Yi Fong Foundation and its scholarship programs.
Revenue
$2.0m
Assets
$7.0m
Employees
1
EIN
20-7388377
IRS type
501(c)(3)

Abigail K K Kawananakoa Foundation

The Abigail K K Kawananakoa Foundation is a private foundation located in Kaneohe, HI. Its purpose is to loan its Hawaiian artifacts to and display them in the Kawananakoa Room of Hulihe'e Palace Museum in Kailua-Kona.
Revenue
$7.1m
Assets
$5.6m
Employees
0
EIN
47-0864911
IRS type
501(c)(3)

Mamoru and Aiko Takitani Foundation

The Mamoru and Aiko Takitani Foundation is a private foundation located in Honolulu, HI. It made $1,784,926 in grants last year and has total assets of $29,660,222.
Revenue
$3.0m
Assets
$31.3m
Employees
0
EIN
51-0212114
IRS type
501(c)(3)

First Hawaiian Bank Foundation

First Hawaiian Bank Foundation is a private foundation in Honolulu, HI, which was founded in 1978 and most recently had $3,314,328 in revenue and no employees.
Revenue
$3.3m
Assets
$5.7m
Employees
0
EIN
23-7437822
IRS type
501(c)(3)

Arimaya Foundation

The Arimaya Foundation is a family foundation of the Maroni family located in Honolulu, HI, with trustees Nadia Al-Alawi, Christina Zaveri, and Maya Maroni.
Revenue
$3.0m
Assets
$2.8m
Employees
0
EIN
93-4635883
IRS type
501(c)(3)
Want more insights on private foundations in Hawaii?
There's a whole lot more to Cause IQ than what you see here. Additional filters, personnel information, peer benchmarking, Salesforce integration, vendor lists, etc. Access all the information your company needs in one place, already collected.
Schedule a demo
Over 200 customers use Cause IQ to grow, maintain, and serve their nonprofit clients.
Methodology: Cause IQ mines all tax-exempt organizations that file a Form 990, Form 990-EZ, or Form 990-PF with the IRS. We collect and aggregate this information from OCR'd paper taxreturns, XML e-file taxreturns, IRS-provided extract, the Business Master File, and Cause IQ secret sauce for data cleaning, categorization, classification, analytics, etc.
This category corresponds to the "T20: Private Foundations" National Taxonomy of Exempt Entities (NTEE) code. Cause IQ determines NTEEs for organizations by its own internally-developed secret-sauce algorithms.
Cause IQ is a website that helps companies grow, maintain, and serve their nonprofit clients, and helps nonprofits find additional foundation funding. Our data and tools help professionals prospect for nonprofits, research opportunities, benchmark their clients, and enrich existing information.
Nonprofits
Product
Customers
About

© 2026 Nonprofit Metrics LLC
Terms of Service and Privacy Policy