Best Green Infrastructure Grants in Mississippi

Coastal conservation and resilience organizations in Mississippi and other eligible U.S. coastal areas can seek US $1,000,000 - US $10,000,000 to plan, design, and implement nature-based infrastructure projects. National Fish and Wildlife Foundation supports efforts like restoring marshes, dunes, reefs, floodplains, and living shorelines that protect communities while enhancing fish and wildlife habitat.

Nonprofit 501(c)(3) organizations with three years of history and $100,000+ budgets in Mississippi communities served by RBC Wealth Management can seek funding for workforce skills, inclusive prosperity, or environmental sustainability programs. RBC Foundation USA provides support that may include green infrastructure or climate-focused projects advancing a net-zero economy and more resilient community spaces.

About Us

advancing the science of water ®

Who We Are

The Water Research Foundation (WRF) is the leading research organization advancing the science of all water to meet the evolving needs of its subscribers and the water sector. WRF is a 501(c)(3) nonprofit, educational organization that funds, manages, and publishes research on the technology, operation, and management of drinking water, wastewater, reuse, and stormwater systems—all in pursuit of ensuring water quality and improving water services to the public.

5428 - Establish Standardized Guidelines for Embedding O&M Considerations into the Design Process

Grant Information

• To provide provisions that address common, recurring design issues that drive operations and maintenance (O&M) time and material, including but not limited to standardization of spare parts and consumables, support for condition based and predictive and preventive maintenance, and maintain-in-place design strategies.
• To develop standardized design guidance to measurably reduce lifecycle O&M labor hours for municipal water and wastewater treatment facilities, pumping stations, etc., once required process performance and regulatory compliance are achieved.

About Us

advancing the science of water ®

Who We Are

The Water Research Foundation (WRF) is the leading research organization advancing the science of all water to meet the evolving needs of its subscribers and the water sector. WRF is a 501(c)(3) nonprofit, educational organization that funds, manages, and publishes research on the technology, operation, and management of drinking water, wastewater, reuse, and stormwater systems—all in pursuit of ensuring water quality and improving water services to the public.

5416 - Innovative Approaches to Extend Lifetime and Minimize O&M for Nature-based Installations

Grant Information

• Identify and evaluate innovative design, construction, and management approaches that extend the functional lifetime of nature-based installations and reduce ongoing operations and maintenance (O&M) requirements.
• Develop practical guidance on key factors affecting nature-based solution (NbS) longevity, including hydraulic optimization, engineered media selection and replacement, plant selection, sediment management, and construction-phase best practices.
• Survey utilities and other NbS owners to document current maintenance practices, costs, and hours, and establish benchmarks to inform targets for improvement.

About Us

advancing the science of water ®

Who We Are

The Water Research Foundation (WRF) is the leading research organization advancing the science of all water to meet the evolving needs of its subscribers and the water sector. WRF is a 501(c)(3) nonprofit, educational organization that funds, manages, and publishes research on the technology, operation, and management of drinking water, wastewater, reuse, and stormwater systems—all in pursuit of ensuring water quality and improving water services to the public.

5430 - Unlocking Value and Opportunities from Carbon Flows in Water Utilities

Grant Information

• Identify carbon flows across drinking water, stormwater, wastewater, and advanced treatment systems. Carbon flows may include source water, stormwater, process emissions, process inputs, residuals, and biogas.
• Identify the most relevant carbon recovery, capture, conversion, storage, and avoidance opportunities.
• Evaluate value creation pathways, including products, avoided costs, and environmental attributes, and mechanisms and partnerships needed to put them into practice.
• Assess how opportunities vary across system types and local contexts by focusing on more common scenarios for utilities.
• Provide practical, research-based insights to support identification, prioritization, evaluation, and advancement of carbon management opportunities under site-specific conditions and constraints.
• Evaluate implications for greenhouse gas (GHG) accounting, environmental attribute claims, and other potential benefits across pathways.

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.

Emerging Leaders Program alumni working in conservation and green infrastructure in Mississippi can receive US $500 to support professional development, SWCS membership, conference fees, or other career-enhancing opportunities. The Soil and Water Conservation Society recognizes graduates who are current members and demonstrate leadership and active engagement in Society activities.

U.S.-incorporated 501(c)(3) organizations leading multidisciplinary environmental projects can seek funding to implement research-based solutions in areas like green infrastructure, water, air quality, and regenerative agriculture. Grants from Renewable Natural Resources Foundation help Mississippi and other U.S. collaborators launch 12+ month projects that connect evidence-based practices with on-the-ground implementation, in partnership with RNRF member organizations.

Renewable Natural Resources Foundation provides Mississippi green infrastructure and environmental organizations with planning and small grants up to US $50,000 for collaborative projects. U.S.-incorporated 501(c)(3) leads can fund multidisciplinary work on areas like renewable energy, water quality, soil health, or recycling, as long as projects involve at least two collaborators and align with RNRF member organizations.

Mississippi 501(c)(3) organizations working on climate and clean energy policy or climate change education can access funding through the Mayer and Morris Kaplan Foundation for general operating or program-specific support. U.S.-based groups focused on reducing fossil fuel use, oil and gas infrastructure, or youth climate education may be especially competitive.

Nonprofit 501(c)(3) organizations working on green infrastructure, clean drinking water, or sustainable energy in Mississippi and across the U.S. can apply for Park Foundation’s Environment Grants. Grants support policy development, advocacy, organizing, corporate responsibility, and investigative reporting focused on drinking water protection and reducing reliance on fossil fuels, particularly natural gas.

Graduate students researching drinking water quality, environmental science, or public health can receive US $3,000 to advance work with actionable outcomes for the water industry. Focused on water-related environmental challenges, American Water Works Association invites students, including those studying green infrastructure topics in Mississippi, to apply for the Dr. Philip C. Singer Scholarship.

Tribal governments and Native-serving organizations pursuing renewable energy and green infrastructure projects in Mississippi and nationwide can apply for Tribal Solar Accelerator Fund grants from GRID Alternatives, with awards up to US $100,000. Funding supports new solar installations, long-term energy planning, and workforce development to advance energy sovereignty, resilience, and job creation in tribal communities.

Mississippi green infrastructure and conservation-focused 501(c)(3) nonprofits can access funding to tell the story of their impact through the Storytelling Grant, supporting communications and media about their work. Eligible 501(c)(3)s and aligned for-profit organizations in preservation, education, or wellness may apply to Jesse W Couch Charitable Foundation for awards of more than US $50,000.

Mississippi green infrastructure nonprofits focused on STEM education, transportation access, or climate resilience can access funding through General Motors Foundation for programs in Rankin County. Eligible applicants are U.S.-based 501(c)(3) organizations in good standing, with strong strategies, sustainable cash reserves, and projects serving communities near GM operations.

With a mission to support community development and sustainability, Saint-Gobain Corporation Foundation provides Mississippi nonprofits and 501(c)(3) educational institutions with funding for green infrastructure, sustainable construction, and STEM-related programs. Organizations in Lauderdale County working on environmental stewardship, energy conservation, or affordable, sustainable housing may be especially competitive.

Nonprofit charities, public education institutions, and government entities serving Weyerhaeuser communities in Mississippi can seek funding for environmental stewardship and green infrastructure projects. Weyerhaeuser Giving Fund also supports related community needs such as affordable housing, youth development, human services, civic growth, workforce development, and diversity, equity and inclusion, with awards of more than US $1,000.

Mississippi green infrastructure groups and other community organizations can access funding through Keep America Beautiful to revitalize and beautify areas along or near Martin Luther King Jr. corridors. Grants of US $5,000 - US $20,000 support projects like community gardens, green spaces, tree plantings, public art, and cleanup efforts that create vibrant, welcoming public spaces.

Nonprofits, local governments, KAB affiliates, and community organizations in Mississippi can apply for Keep America Beautiful’s Cigarette Litter Prevention Program grants, awarding US $5,000 - US $20,000 for cigarette litter receptacles, marketing, and program administration. Projects that expand to new communities or use CLPP as a clean water strategy may be especially relevant for green infrastructure efforts.

Non-governmental and other nonprofit organizations running two-year climate action projects in eligible Americas countries, including the U.S., can seek funding for scalable, SDG-linked initiatives such as clean energy, biodiversity, or climate risk reduction. HCL Technologies supports climate change resilience and equity with awards up to Up to US $500,000 for direct-implementation projects.

Nonprofit, neighborhood-based organizations planning capital projects to create or rehabilitate local football fields can apply for up to US $250,000 in Mississippi and other eligible areas. Focused on improving safe, accessible recreation spaces, Local Initiatives Support Corporation and the NFL Foundation Grassroots Program support community infrastructure that may complement broader green infrastructure efforts.