American Rivers - The Ohio River

Ball State University

Big Oaks Conservation Society

Columbus Zoo

Eastern Kentucky University

Ecological Specialists, Inc.

Enviroscience, Inc.

Environmental Protection Agency - EPA

Hanover College

Illinois Natural History Survey

Illinois Department of Natural Resources

Indiana Dept, of Natural Resources

Indiana University

Indiana State University

Kentucky Dept. of Fish and Wildlife Resources

Kentucky Nature Preserves Commission

Kentucky Waterways Alliance

Natural Resources Conservation Service - NRCS

The Nature Conservancy

Normandeau Associates

Oak Heritage Conservancy

Ohio Department of Natural Resources

Ohio River Foundation

Ohio River Valley Water Sanitation Commission - ORSANCO

Ohio State University

Southeast Aquatic Research Institute

U.S. Army Corps of Engineers

U.S. Department of Agriculture

The U.S. Forest Service

U.S. Geological Survey

Virginia Polytechnic Institute

West Virginia Division of Natural Resources

West Virginia University