| State of North Carolina | Department of Transportation
|
| NC State University | Biological & Agricultural Engineering Department
|
| State University of New York at Binghamton
|
| State University of New York | College of Environmental Science and Forestry
|
| Stebbins
|
| Stevens Institute of Technology
|
| Stillaguamish Tribe
|
| StormSmart Coasts
|
| Strategic Environmental Research and Development Program
|
| Stratiscope
|
| Stratus Consulting
|
| Superior Watershed Partnership & Land Trust
|
| Suquamish Tribe
|
| Surfrider Foundation
|
| Susanne Moser Research and Consulting
|
| Sustainable Cleveland
|
| Sustainable Homer
|
| Sustainable New Jersey
|
| Swinomish Indian Tribal Community
|
| Syntectic International, LLC
|
| Tableau Foundation
|
| Tampa Bay Regional Planning Council
|
| Tampa Bay Water
|
| Tennessee Valley Authority
|
| TerraGIS
|
