Water Grants provide funding for organizations and programs in this focus area. Sources include federal agencies, state programs, and private foundations. Use the listings below to find current opportunities, eligibility requirements, and deadlines — and apply directly to the funder when you find a fit.
Overview _Note: Notice of intent to apply is optional._ Hudson River Ecosystem Monitoring Program (HREMP) A sustained, comprehensive ecological monitoring program of the Hudson River is essential to…
Hudson River Fund Research Grant Status: ACTIVE Funder: Hudson River Foundation Last Updated: December 02, 2025 Summary The Hudson River Fund Research Grant, provided by the Hudson River Foundation,…
IAW: Environmental Grant Program Status: ACTIVE Funder: Illinois American Water Amount: Up to US $5,000 Last Updated: March 06, 2026 Summary The Illinois American Water Environmental Grant Program,…
Idaho Nonpoint Source Management §319 Subgrants Grant Status: ACTIVE Funder: Idaho Department of Environmental Quality (IDEQ) Amount: Up to US $250,000 Last Updated: June 02, 2025 Summary The Idaho…
Illinois support of Ohio River Basin Asian Carp control and management (CAFWS-182) Conduct fish and wildlife management activities that align with the conservation, restoration, and management goals…
Illinois support of Ohio River Basin Asian Carp control and management (FY26) Conduct fish and wildlife management activities that align with the conservation, restoration, and management goals and…
Illinois support of Upper Mississippi River Asian Carp control and management (FY25) Conduct fish and wildlife management activities that align with the conservation, restoration, and management…
Illinois Wetland Inventory Grant Provide the Illinois Department of Natural Resources (IDNR) with a preliminary updated statewide wetland mapping using a deep learning predictive model in a…
Imagine H2O Accelerator Overview: Imagine H2O's Accelerator is the leading entrepreneurial development program for water sector founders. A zero-equity accelerator that selects, accelerates, and…
Imagine H2O Asia Accelerator Overview: The Asia-Pacific expansion of Imagine H2O's flagship accelerator program, supporting water technology startups across Southeast Asia. Launched in 2019, now in…
Impact Grant - Track 1 Funder: Woodard & Curran Foundation (ME, US) Focus Areas: - Protection, restoration, and/or management of water and environmental resources - Approaches to responsible land and…
Impact Grant - Track 2 Funder: Woodard & Curran Foundation (ME, US) Focus Areas: - Innovative projects that apply or advance technology to address water issues relating to climate change -…
Impact Grants Status: ACTIVE Funder: Woodard & Curran Foundation Amount: US $100,000 Last Updated: March 08, 2026 Summary The Woodard & Curran Foundation will award a $100,000 Impact Grant in 2025 to…
IN Clean Water Act Section 319(H) Grants Status: ACTIVE Funder: Indiana Department of Environmental Management (IDEM) Amount: Approximately US $300,000 Last Updated: April 23, 2025 Summary The…
Indian River Lagoon Water Quality Improvement Grant Status: ACTIVE Funder: Florida Department of Environmental Protection Last Updated: July 09, 2025 Summary The Indian River Lagoon Water Quality…
INFRASTRUCTURE - Housing Infrastructure Loan Fund Supports preliminary engineering and planning; engineering design and bid specifications; construction of improvements; and…
Inland Wetlands Conservation The Inland Wetlands Conservation Program (IWCP) was created to assist the Central Valley Joint Venture (CVJV) in its mission is to protect, restore, and enhance wetlands…
Instrumentation Discovery Travel Grants Status: ACTIVE Funder: Consortium of Universities for the Advancement of Hydrologic Science, Inc. Amount: Up to US $2,000 Last Updated: April 15, 2025 Summary…
International Federation of Fly Fishers: Conservation Grants Status: ACTIVE Funder: International Federation of Fly Fishers Amount: Up to US $3,000 Last Updated: September 24, 2025 Summary The…
Invasive Carp Management Control in IL Waterway GLRI (FY25) To provide technical and financial assistance to implement the highest priority actions in order to protect and restore the Great Lakes.…