What kinds of projects does Sustainable Path Foundation fund?

It supports sustainability, health, and climate resiliency projects in the Puget Sound region, with active programs emphasizing pilot, seed, and innovative work. The topic list also includes water resources, food systems, waste reduction, clean energy, conservation, pollution prevention, and citizen science.

How does Sustainable Path Foundation accept proposals?

Its Impact Circle Spring and Fall grant cycles accept unsolicited letters of inquiry, with one LOI per nonprofit organization for project-specific proposals. The Founders Award and Founders' Award are board-selected and do not accept unsolicited applications.

What is a typical grant size?

The reported grant-size distribution is very tight: p25, median, and p75 are all $10,000. Recent awards also show $12,000 and $15,000 grants, and the Impact Circle cycles allow grants from $0 to $20,000.

Where does the foundation give?

Its giving is local and concentrated in Washington, especially the Puget Sound region. All 28 recent grants went to U.S. recipients, and every listed recipient was in Washington.

Do grantees receive support more than once?

Yes. Several organizations appear across multiple years, including Center for Sustainable Infrastructure, Clean Energy Transition Institute, Northwest Natural Resources Group, Zero Waste Washington, Sightline Institute, and Kulshan Carbon Trust.

Sustainable Path Foundation

Name: Sustainable Path Foundation — grants, 990 financials & funding data
Creator: Kindora

ActiveSocial Science

Seattle, WAWebsite2064503034

About Sustainable Path Foundation

Sustainable Path Foundation promotes sustainability and health in our region through collaborative approaches informed by scientific understanding and systems thinking.

Focus Areas

SustainabilityClimate change mitigation and resiliencePublic and environmental healthCitizen scienceWater resources and watershedsFood systems and sustainable agricultureWaste reduction and zero wasteClean energy and building electrificationConservation and habitat protectionPollution prevention (air, microplastics)

Who They Fund

residents and communities in the Puget Sound region

About Sustainable Path Foundation

Sustainable Path Foundation centers its grantmaking on sustainability, health, and climate resiliency in the Puget Sound region, with an emphasis on pilot, seed, and innovative projects shaped by scientific understanding and systems thinking. Its active Impact Circle grants and board-selected Founders Award show two ways it supports the same regional agenda: open, competitive project grants and discretionary awards tied to partner organizations and honored individuals. Recent grants show a steady pattern of support for organizations working on environmental sustainability across Washington. In 2025, the foundation gave $15,000 to Friends of the San Juans in Friday Harbor for sustainability in the Puget Sound region, and $15,000 to Zero Waste Washington in Seattle for the same purpose. Other recent support went to Clean Energy Transition Institute, Northwest Natural Resources Group, Center for Sustainable Infrastructure, and Sustainable Connections, indicating attention to clean energy, watershed and forest-related work, infrastructure, and regional sustainability networks. The foundation’s grantmaking is place-based and focused on the Puget Sound region rather than broad national giving. Its funded organizations include conservation, climate, water, and zero-waste nonprofits as well as science and policy groups that work on regional environmental stewardship. The repeated appearance of several recipients across multiple years suggests ongoing relationships alongside project support.

What Sustainable Path Foundation Funds

Within sustainability and climate work, the foundation supported Clean Energy Transition Institute with $15,000 in 2025 and $10,000 in 2023, both for sustainability in the Puget Sound region. It also gave Climate Solutions $10,000 in 2025 for the same regional purpose. Zero waste and pollution prevention are another clear thread. The foundation awarded $15,000 to Zero Waste Washington in 2025 and $10,000 in 2024, showing continued support for that organization’s sustainability work. Toxic Free Future received $12,000 in 2025. Water and marine-related work appears as well. Washington Water Trust received $10,000 in 2024, Nooksack Salmon Enhancement Association received $10,000 in 2024, and Port Townsend Marine Science Center received $10,000 in 2023, each tied to sustainability in the Puget Sound region. The foundation also supports research and civic environmental work, including $10,000 to Sightline Institute in 2023 and 2024 and $10,000 to Investigate West in 2023.

Financial Snapshot

Annual Giving

$122K

Total Assets

$568K

Total Revenue

$181K

Total Expenses

$163K

Typical Grant Size

Most grants fall between $10K and $10K, with a median of $10K.

25th Percentile

$10K

Median

$10K

75th Percentile

$10K

Geographic Reach

Local1 state funded

Funding intensity

Low

High

Headquarters

Leadership

Jennifer Slack

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Recipient	Location	Amount	Year	Purpose
Center for Sustainable Infrastructure	Olympia, WA	$15,000	2025	To support sustainability in the Puget Sound region
Northwest Natural Resources Group	Seattle, WA	$15,000	2025	To support sustainability in the Puget Sound region
Zero Waste Washington	Seattle, WA	$15,000	2025	To support sustainability in the Puget Sound region
Sustainable Connections	Bellingham, WA	$15,000	2025	To support sustainability in the Puget Sound region
Friends of the San Juans	Friday Harbor, WA	$15,000	2025	To support sustainability in the Puget Sound region
Clean Energy Transition Institute	Seattle, WA	$15,000	2025	To support sustainability in the Puget Sound region
Toxic Free Future	Seattle, WA	$12,000	2025	To support sustainability in the Puget Sound region
Climate Solutions	Seattle, WA	$10,000	2025	To support sustainability in the Puget Sound region
WA Conservation Action Education Fund	Seattle, WA	$10,000	2025	To support sustainability in the Puget Sound region
Nooksack Salmon Enhancement Association	Bellingham, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Remote Energy	Tacoma, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Center for Sustainable Infrastructure	Olympia, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Kulshan Carbon Trust	Bellingham, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Clean Energy Transition Institute	Seattle, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Washington Water Trust	Seattle, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Sightline Institute	Seattle, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Zero Waste Washington	Seattle, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Northwest Natural Resources Group	Seattle, WA	$10,000	2024	To support sustainability in the Puget Sound region.
Port Townsend Marine Science Center	Port Townsend, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Puget Soundkeeper Alliance	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Center for Sustainable Infrastructure	Olympia, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Sightline Institute	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Clean Energy Transition Institute	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Puget Sound Bird Observatory	Bothell, WA	$10,000	2023	To support sustainability in the Puget Sound region.
EarthCorps	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Kulshan Carbon Trust	Bellingham, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Northwest Natural Resources Group	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.
Investigate West	Seattle, WA	$10,000	2023	To support sustainability in the Puget Sound region.

Recipient

Location

Amount

Year

Purpose

Center for Sustainable Infrastructure

Olympia, WA

$15,000

2025

To support sustainability in the Puget Sound region

Northwest Natural Resources Group

Seattle, WA

$15,000

2025

To support sustainability in the Puget Sound region

Zero Waste Washington

Seattle, WA

$15,000

2025

To support sustainability in the Puget Sound region

Sustainable Connections

Bellingham, WA

$15,000

2025

To support sustainability in the Puget Sound region

Friends of the San Juans

Friday Harbor, WA

$15,000

2025

To support sustainability in the Puget Sound region

Clean Energy Transition Institute

Seattle, WA

$15,000

2025

To support sustainability in the Puget Sound region

Toxic Free Future

Seattle, WA

$12,000

2025

To support sustainability in the Puget Sound region

Climate Solutions

Seattle, WA

$10,000

2025

To support sustainability in the Puget Sound region

WA Conservation Action Education Fund

Seattle, WA

$10,000

2025

To support sustainability in the Puget Sound region

Nooksack Salmon Enhancement Association

Bellingham, WA

$10,000

2024