- Center for Watershed Protection - independent research and technical support to professionals to find new, cooperative ways of protecting and restoring our nation's watersheds.
- Gulf of Maine Council on the Marine Environment - promotes stewardship activities in the Gulf and its watershed.
- Cook Inlet Keeper - nonprofit organization monitors water quality in order to protect the Cook Inlet and Kachemak Bay watershed and the life it sustains.
- Stony Brook Millstone Watershed Association - maintains and preserves the local watershed, runs an organic farm, and educates local residents in Pennington, New Jersey.
- Information Integration for Watershed Planning and Risk Assessment - pilot project using GIS focusing on risk assessments of eastern Sierra Nevada biological species and fire hazards.
- Minnesota Association of Watershed Districts (MAWD) - represents 42 watershed districts in the state. Watershed districts are partners in water protection and management.
- Rio Grande Alliance - alliance concerned with the protection, improvement, and conservation of the Rio Grande Watershed.
- Steelhead Society of BC, The - nonprofit watershed conservation organization dedicated to protecting, enhancing, and restoring British Columbia's wild salmon and steelhead habitat.
- Bridging the Watershed - National Park Labs partnership between Potomac area National Parks and schools.
- Oyster Pond Environmental Trust, Inc. - nonprofit organization dedicated to protecting and studying the health of the Oyster Pond watershed in Falmouth, Cape Cod, Massachusetts.