Honda Marine Science Foundation

Private foundation · Grantmaker Torrance, CA EIN: 81-3059710

Honda Marine Science Foundation is a private foundation, based in Torrance, CA. IRS filing data is available for 2021. As of 2021, the organization holds $8.9M in total assets. In 2021, it awarded 6 grants totaling $485K. Net investment income was $313K.

Honda Marine Science Foundation at a glance

In short: Honda Marine Science Foundation gave $485K across 6 grants in 2021 (avg $81K), top state California. Source: 2021 IRS Form 990-PF.

Annual giving (2021)
$485,114
Grants made (2021)
6
Average grant
$80,852
Median grant
$80,578
Total assets
$8,869,336
Primary geography
California (48% of itemized 2021 grant dollars)
Latest 990 filing
Form 990-PF, 2021 View filing

Data from IRS Form 990-PF, 2021; updated September 2026.

Who Honda Marine Science Foundation funds

How this funder distributes its grants

Top Recipients

Top 6 recipients in 2021

The Nature Conservatory: $100KThe Nature Conservatory$100KCalifornia Ocean Science Trust: $92KCalifornia Ocean Science Trust$92KSan Diego Audubon Society: $85KSan Diego Audubon Society$85KDuke University: $76KDuke University$76KEarthcorps: $76KEarthcorps$76KCalifornia Sea Grant Ucsd: $56KCalifornia Sea Grant Ucsd$56K

The largest 2021 recipient was The Nature Conservatory ($100K). Together the top 6 received $485K.

Grant Size Distribution

6 grants across all recorded years

<$50K5$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was in the $50–100K range: 5 grants of 6 (83%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Share of 2021 grant dollars across all 6 itemized grants.

Cities

ArlingtonBeaufortBerkeleyOaklandSan DiegoSeattle

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K6 grants2021

In 2021 it made 6 grants totaling $485K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
The Nature Conservatory Arlington, VAThe nature conservancy (TNC) has identified the establishment of a network of regenerative ocean kelp farms as a means of driving kelp reforestation and long-term recovery in California. TNC is launching a demonstration project to establish the first-of-its-kind regenerative ocean farm on the north coast of California. This project will restore 20 acres of kelp forests, validate the potential of regenerative ocean farming, and bring back the productivity and biodiversity of the ecosystem while providing economic opportunities for coastal communities. TNC's goal with this project is to establish a framework that can help restore bull kelp populations and the living shorelines they support along the California coastline.$100,000
California Ocean Science Trust Oakland, CACalifornia ocean science trust (ost, 501c3, ein: 6 5-1261006) is thrilled to propose a project focused on science informing solutions, as we seek to make coastal nature-based adaptation, specifically living shorelines, work more equitably for nature and people in California. Ost will convene an interdisciplinary working group of experts to develop evidence-based science guidance for achieving socially equitable outcomes of living shorelines. Working group members will represent experts in academic fields such as social vulnerability, coastal ecology, and design/engineering alongside environmental justice practitioners, equity-based nonprofits, and community-based advocacy organizations. Simultaneously, ost will leverage our unique connections to the state to convene an informal advisory committee of state agency policy-makers, as well as public and private funders to ensure that the final results are actionable within California policy and funding for restoration.$92,257
San Diego Audubon Society San Diego, CAReconnecting to kendall-frost marsh is a project that brings new and needed perspectives to coastal wetland restoration in san diego's mission bay. Bringing indigenous community knowledge and partnership to the forefront of habitat management and access discussions is needed along our shared shoreline throughout the state. We will conduct innovative research and community-driven discussions about the living history and future management and access at the university of California natural reserve system's kendall-frost marsh reserve and set a benchmark for collaborative research and management for other organizations and locations to follow.$85,229
Duke University Beaufort, NCThe central objective of our project is to fill key knowledge gaps in quantifying the interplay between coral reef restoration actions and hydrodynamic responses at the shoreline to inform the design of coral restoration for shoreline protection. We will use a systematic series of coupled 3d wave/circulation model simulations of idealized coral reefs, corresponding to different candidate coral restoration designs (e.g., varying coral height, spacing, position on reef, patchiness/clustering, antecedent bottom roughness) to understand the effects on wave attenuation, determine forces on restored corals at different positions on the reef, and breakage probabilities. These analyses will assist in identifying species, configurations, placement, and attachment methods for the highest potential for successful restoration.$75,926
Earthcorps Seattle, WAThe sweetgrass living shoreline restoration project integrates science, planning, design, and stakeholder participation to develop, fabricate, deploy, and monitor prototypical floating wetland coastal shoreline designs for key urban test sites in the lake washington cedar-sammamish watershed (water resource inventory area 8wria 8) and estuarine puget sound shoreline.$75,702
California Sea Grant Ucsd Berkeley, CATo convene scientists, engineers, and communities who have been involved in implementing and monitoring California pilot dune restoration projects to compile a best practice guidebook with the goal of enhancing the pillar point west trail living shoreline project and informing other dune living shoreline projects currently in the early planning and design stages.$56,000
Your AI grants department

Ready to take the next step with Honda Marine Science Foundation?

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 paidGrantsNet Investment IncomeDistributable Amount
2021$8,869,336$312,794$460,274$485,1146$312,794$407,034

Under IRS private-foundation payout rules, Honda Marine Science Foundation reported a distributable amount of $407K for 2021 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Honda Marine Science Foundation is led by David Hendley, President on the 2021 filing; none of the 9 officers listed in 2021 report compensation.

Officers on the 2021 filing

  • David Hendley

    President

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Steve Center

    Chairman

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Chris Yates

    Director

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Hunter Lenihan

    Director

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Matt Sloustcher

    Director

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Nina Bryson

    Director

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Sarah Sikich

    Director

    New on the 2021 filing

    1 hr/week

    No compensation reported

  • Jessalyn Ishigo

    Secretary

    New on the 2021 filing

    3 hrs/week

    No compensation reported

  • Raminta Jautokas

    Treasurer

    New on the 2021 filing

    5 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2021. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Honda Marine Science Foundation

How much does Honda Marine Science Foundation give each year?

Honda Marine Science Foundation gave $485K across 6 grants in 2021, according to its 2021 IRS Form 990-PF.

What is Honda Marine Science Foundation's typical grant size?

Honda Marine Science Foundation's median grant in 2021 was $80,578, and its average grant was $80,852, across 6 grants on its 2021 IRS Form 990-PF.

Where does Honda Marine Science Foundation give grants?

Honda Marine Science Foundation's top state is California, with 48% of the grant dollars itemized on its 2021 IRS Form 990-PF. The next largest states were Virginia (21%) and North Carolina (16%).

Does Honda Marine Science Foundation give general operating support?

Not in 2021: none of the 6 grants with a stated purpose on Honda Marine Science Foundation's 2021 IRS Form 990-PF were described as general or operating support.

Who are Honda Marine Science Foundation's largest grantees?

Honda Marine Science Foundation's largest 2021 grantees include The Nature Conservatory ($100,000), California Ocean Science Trust ($92,257) and San Diego Audubon Society ($85,229), according to its 2021 IRS Form 990-PF. Together they received 57% of its itemized 2021 grant dollars.

How large is Honda Marine Science Foundation?

Honda Marine Science Foundation reported $8.9M in total assets on its 2021 IRS Form 990-PF. Its revenue that year was $313K.

How much is Honda Marine Science Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2021, Honda Marine Science Foundation reported a distributable amount of $407K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Honda Marine Science Foundation's EIN?

Honda Marine Science Foundation's EIN (Employer Identification Number) is 81-3059710. IRS Form 990 filing data is available on this page for 2021.

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

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal year 2021

Explore Open Grants

Browse active grant opportunities in Honda Marine Science Foundation's focus areas in our free grants database

Similar Funders

Funders with grantees in common, and similar funders in California

Change Happens Foundation

Urbandale, IA

Change Happens Foundation funds environmental science, education, and human services, including sustainable environmental solutions, early education and STEM, and nutrition and community health. Its 2024 grants ranged from $250 to $50,000, with a median of $17,500; it supports national or global work and local initiatives primarily in Iowa, with occasional funding in the San Francisco Bay Area, Santa Barbara County, and Puget Sound. It accepts online letters of inquiry and invites selected applicants to submit a full proposal.

Philanthropy, Voluntarism & Grantmaking

Assets

$17.8M

Grants

12

Total Given

$255K

Grantham Foundation for the Protection

Boston, MA

The Grantham Foundation for the Protection funds climate and environmental research, advocacy, and solutions, including clean energy, regenerative agriculture, toxicity, and carbon removal. Its 2024 grants ranged from $11,000 to $4.5 million, with a median of $500,000, and went to organizations in multiple locations, including Washington, DC, New York, Massachusetts, and California. It accepts proposals by invitation only and does not accept unsolicited requests.

Assets

$613.2M

Grants

83

Total Given

$67.0M

Walton Family Foundation Inc

Bentonville, AR

The Walton Family Foundation funds K–12 education, river and ocean conservation, and quality-of-life initiatives in Northwest Arkansas and the Arkansas-Mississippi Delta; its grants also support organizations and projects elsewhere in the U.S. Its 2024 grants had a median of $200,000, with awards ranging from $1,000 to $35.6 million. It does not accept unsolicited requests except from eligible public charter school developers applying to its startup grant program; other organizations must first submit a letter of inquiry and await an invitation.

Assets

$6.1B

Grants

1,020

Total Given

$562.3M

The William & Flora Hewlett Foundation

Menlo Park, CA

The William & Flora Hewlett Foundation funds education, climate and conservation, the arts, democracy, gender equity, racial justice, and efforts to strengthen nonprofits and philanthropy, with work spanning the San Francisco Bay Area, the U.S. West, and locations including East and West Africa and Mexico. Its 2024 grants had a median award of $150,000, though amounts varied widely. It generally does not accept unsolicited requests, but sometimes invites proposals through open processes.

Philanthropy, Voluntarism & Grantmaking

Assets

$14.2B

Grants

2,001

Total Given

$625.0M

The Chicago Community Trust

Chicago, IL

The Chicago Community Trust funds eligible nonprofits working to narrow the wealth gap and meet urgent needs, with priorities including economic mobility, education, jobs, homeownership, and community development in metropolitan Chicago and Cook County. Its 2025 grants had a median of $26,500, though amounts varied widely; the profile does not state whether it accepts unsolicited requests.

Assets

$7.1B

Grants

4,316

Total Given

$1.2B

The Pew Charitable Trusts

Washington, DC

The Pew Charitable Trusts funds nonpartisan policy research and initiatives, civic participation, and—especially in Philadelphia—arts and culture and services for people in need. Its 2025 grants had a median of $75,000, though amounts varied widely; funding is national, with substantial support in Washington, D.C., and Pennsylvania. The profile does not state whether Pew accepts unsolicited requests.

Assets

$1.5B

Grants

535

Total Given

$140.6M

More similar funders

More Funders in California

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

Figures come from Honda Marine Science Foundation'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.

Honda Marine Science Foundation down — hundreds of funders to go?

Want AI to do this for you?