American Council of Engineering

Hawaii Realtors Charitable Foundation

Honolulu, HI

The Hawai‘i REALTORS® Charitable Foundation supports community efforts addressing food insecurity and providing housing for people in need, including disaster relief and food assistance, primarily in Hawai‘i. Its 2024 grants ranged from $200 to $3,000, with a median of $2,500. It offered applications for Maui wildfire housing assistance, but the profile does not state whether it accepts unsolicited requests generally.

J Watumull Fund

Honolulu, HI

J Watumull Fund supports public charities and schools across areas including arts, education, health, community services, and child welfare; most of its 2024 grant dollars went to Hawaii. Its grants ranged from $500 to $50,000, with a median of $2,000. It accepts applications anytime.

Chamber of Commerce of Hawaii

Honolulu, HI

The Chamber’s Public Health Fund supports Oahu nonprofits’ public-health education, research, and legislation projects, with preference for visible results; it awards more than $100,000 in total grants annually, but individual award sizes aren’t stated. It accepts unsolicited applications through its application process.

Hawaii Foodbank Inc

Honolulu, HI

Hawaiʻi Foodbank funds community organizations working to relieve hunger, with grants primarily supporting partners in Hawaiʻi, especially Oʻahu and Kauaʻi. Its 2025 grants had a median of about $72,000 and ranged from about $5,000 to $2.48 million. The profile describes an agency-partner onboarding process but does not state whether unsolicited requests are accepted.

Aloha United Way Inc

Honolulu, HI

Aloha United Way supports Hawaiʻi nonprofits and community partners addressing health, education, financial stability, housing, and other human-service needs. Its 2024 grants had a median of $24,421, though awards varied widely; a published Safety Net funding cycle offered $20,000–$75,000 per year, and 99% of 2024 grant dollars went to Hawaiʻi. Funding is generally through partner-agency programs, and the profile does not state whether it accepts unsolicited requests.

Mamoru & Aiko Takitani Foundation Inc

Honolulu, HI

The foundation funds scholarships and youth education programs, including innovative educational and career initiatives, primarily in Hawaii. Its 2024 grants ranged from $1,000 to $350,000, with a median of $3,000. It does not accept unsolicited funding requests; community grants are by invitation only, while scholarship candidates are nominated by eligible high schools.

Tradewind Group Foundation

Honolulu, HI

The foundation supports Hawai‘i organizations working in areas including education, workforce development, housing, health, arts, and community service. In 2025, its 146 grants ranged from $86 to $100,510, with a median of $5,000. It accepts requests by letter year-round and does not restrict giving to preselected organizations.

Council for Native Hawaiian Advancement

Kapolei, HI

Hawaiian Council funds community, cultural, economic, and capacity-building projects, including events and programs benefiting Native Hawaiian and local communities, primarily in Hawaiʻi. Its 2025 grants ranged from $5,363 to $402,000, with a median of about $24,000; the profile does not state whether it accepts unsolicited requests.

Trustees of the Estate of Bernice Pauahi Bishop DBA Kamehameha Schools

Honolulu, HI

Kamehameha Schools funds education-centered efforts, with a mission focused on improving the well-being of people of Hawaiian ancestry. Its 2025 grants ranged from $12,500 to $1,847,100, with a median of $150,000; 99% of grant dollars went to Hawai‘i and 1% to California. Unsolicited requests are not addressed in the profile.

Harold KL Castle Foundation

Kailua, HI

The Harold K.L. Castle Foundation funds Hawaii-serving nonprofits and public schools, with priorities in public education, nearshore marine conservation, climate resilience, and Windward Oahu communities; it generally supports specific projects. Recent grants ranged from $500 to $550,000, with a median of $25,000. Prospective applicants start with an online inquiry and are asked to contact foundation staff before applying.

Altres Foundation

Honolulu, HI

First Insurance Company

Honolulu, HI

The foundation supports a range of causes, including higher education, health and human services, public radio, and environmental education, with most funding going to Hawaii. Its 2025 grants ranged from $100 to $47,450, with a median of $5,000. It accepts requests by letter describing the activity; the filing says giving is not limited to preselected organizations.