Best Green Infrastructure Grants in Washington

Tribal governments and communities in Washington and across the U.S. seeking to build solar and other renewable energy projects can apply for GRID Alternatives’ Tribal Solar Accelerator Fund capacity-building grants, with awards up to US $100,000. Funding supports green infrastructure, energy sovereignty planning, workforce development, education, and training to strengthen long-term tribal energy resilience.

Nonprofits, agencies, and partners planning or implementing nature-based coastal resilience projects in Washington can seek US $1,000,000 - US $10,000,000 through the National Coastal Resilience Fund. National Fish and Wildlife Foundation supports green infrastructure such as living shorelines, marsh and dune restoration, and other natural or hybrid systems that reduce flooding risks while enhancing fish and wildlife habitat.

Washington 501(c)(3) public charities with $100,000+ budgets can seek funding for workforce preparation, youth development, and community accessibility projects that support skills, inclusive prosperity, or environmental transitions. Focused on future-ready skills and resilient communities, RBC Foundation USA invites nonprofits in its Washington service areas to apply; green infrastructure components that enhance community spaces may be eligible.

Washington nonprofit, neighborhood-based organizations improving local football field infrastructure can access funding through Local Initiatives Support Corporation to create or rehabilitate safe, high-quality playing fields. Grants up to US $250,000 support capital improvement projects that enhance community recreation spaces and expand access to safe places for exercise, play, and gathering in underserved areas.

The Community Forest and Open Space Conservation Program, offered by the USDA Forest Service, aims to support Indian Tribes, local governments, and qualified non-profits in acquiring private forest lands to establish community forests. This competitive grant program focuses on protecting forestland from non-forest uses while enhancing public access and community benefits such as recreation and education. Applications are due by October 13, 2026, requiring coordination with State Foresters or Tribal officials.

Washington conservation professionals who are Emerging Leaders Program graduates and current members of the Soil and Water Conservation Society can access this alumni award to support career growth. Green infrastructure and freshwater conservation leaders may receive US $500 for professional development, Society membership, conference fees, or other conservation-focused opportunities that enhance their leadership and engagement.

U.S.-incorporated 501(c)(3) organizations implementing collaborative environmental projects, including green infrastructure, can seek US $50,000 - US $200,000 to apply research and evidence-based practices. With a mission to connect research and implementation, Renewable Natural Resources Foundation provides funding for multidisciplinary projects in areas like renewable energy, water quality, soil health, and sustainable infrastructure that may benefit Washington communities.

Nonprofit 501(c)(3) organizations planning collaborative environmental projects can access funding for planning or small-scale initiatives through Renewable Natural Resources Foundation; awards up to US $50,000. Grants from Renewable Natural Resources Foundation help Washington green infrastructure and related sustainability efforts that address areas like renewable energy, water quality, soil health, and ecosystem conservation within the U.S.

U.S.-based 501(c)(3) organizations working on climate and clean energy policy or climate change education can apply for the Mayer and Morris Kaplan Foundation’s Environment Grant. Funding supports general operations or programs that reduce fossil fuel demand and production or provide scientifically accurate, action-oriented climate education, which may benefit green infrastructure efforts in Washington.

U.S.-based 501(c)(3) organizations working on drinking water protection, clean energy, or related green infrastructure efforts, including in Washington, can seek support for policy, advocacy, organizing, and corporate responsibility projects. Park Foundation also considers investigative reporting on drinking water and shale gas issues, generally focused on matters relevant to New York State.

Washington graduate students researching drinking water quality, environmental science, or public health can access funding through the American Water Works Association’s Dr. Philip C. Singer Scholarship. This US $3,000 award supports research with actionable, timely outcomes for current water industry challenges, which may include green infrastructure and clean drinking water initiatives.

Washington environmental and conservation organizations working on green infrastructure and estuary health can seek US $200,000 - US $500,000 to address urgent watershed challenges. Focused on habitat loss, coastal resilience, stormwater runoff, harmful algal blooms, and invasive species, Restore America’s Estuaries invites projects within eligible National Estuary Program boundary areas in Washington.

Washington green infrastructure and environmental nonprofits can access funding through the Jesse W Couch Foundation to support storytelling projects that highlight their impact in conservation, preservation, education, or wellness. Registered 501(c)(3) organizations and aligned for-profits may receive more than US $50,000 to share their work in areas like green infrastructure, historic preservation, or mental health.

Washington green infrastructure and conservation organizations can access funding through the Rose Foundation for Communities and the Environment to improve Puget Sound water quality, with awards up to US $40,000. Eligible 501(c)(3)s, fiscally sponsored projects, and governmental or tribal entities working on community-led stewardship, restoration, and watershed protection in specified Puget Sound areas may be competitive.

Nonprofit 501(c)(3) organizations and accredited schools working on sustainability, green infrastructure, and related STEM education in Washington can seek project support through the Saint-Gobain Foundation Direct Grants program. Grants from Saint-Gobain Corporation Foundation prioritize sustainable construction, energy conservation, workforce development, and affordable or accessible housing in communities where its employees live and work.

Nonprofits, public institutions, and municipalities serving Weyerhaeuser communities in Washington can seek support for community projects, including environmental stewardship and green infrastructure efforts, from the Weyerhaeuser Giving Fund. With a mission to strengthen local communities, it provides grants over US $1,000 across seven focus areas such as environmental conservation, affordable housing, and workforce development.

Nonprofits, local governments, Keep America Beautiful affiliates, and community organizations can apply for Keep America Beautiful’s MLK Corridor Community Grants, awarding US $5,000 - US $20,000 for community development, greening, and public art projects along or near MLK corridors. Washington groups improving green infrastructure through gardens, green spaces, trees, and cleanups may be eligible.

Washington environmental and community organizations working on green infrastructure and pollution reduction can access funding through Keep America Beautiful’s Cigarette Litter Prevention Program to reduce cigarette waste. Grants of US $5,000 - US $20,000 support receptacles, outreach, and program administration, with priority for KAB affiliates and projects that enhance clean water outcomes.

Non-governmental, not-for-profit, or charitable organizations in Washington and other eligible Americas countries with climate action projects can apply for HCL Technologies’ HCLTech Grant Edition II, offering up to US $500,000 for two-year initiatives. Funding supports scalable, replicable projects advancing climate adaptation, mitigation, resilience, and related Sustainable Development Goals, which may include green infrastructure components.